The Tor Browser: layout/style/test/test_transitions_per_property.html@8bccb770b82d (annotated)

layout/style/test/test_transitions_per_property.html@8bccb770b82d (annotated)

layout/style/test/test_transitions_per_property.html

Wed, 31 Dec 2014 13:27:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 13:27:57 +0100
branch: TOR_BUG_3246
changeset 6: 8bccb770b82d
permissions: -rw-r--r--

Ignore runtime configuration files generated during quality assurance.

 <!DOCTYPE HTML>
 <html>
 <!--
 https://bugzilla.mozilla.org/show_bug.cgi?id=435441
 -->
 <head>
   <title>Test for Bug 435441</title>
   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <script type="text/javascript" src="property_database.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
   <style type="text/css">
   #display > p { margin-top: 0; margin-bottom: 0; }
   </style>
 </head>
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435441">Mozilla Bug 435441</a>
 <!--
   fixed-height container so percentage heights compute to different
   (i.e., nonzero) values
   fixed-width container so that percentages for margin-top and
   margin-bottom are all relative to the same size container (rather than
   one that depends on whether we're tall enough to need a scrollbar)
   Use a 20px font size and line-height so that percentage line-height
   and vertical-align doesn't accumulate rounding error.
   -->
 <div style="height: 50px; width: 300px; font-size: 20px; line-height: 20px">
 <div id="display">
 </div>
 <div id="transformTest" style="height:100px; width:200px; background-color:blue;">
 </div>
 </div>
 <pre id="test">
 <script type="application/javascript">
 /** Test for Bug 435441 **/
 SimpleTest.requestLongerTimeout(2);
 SimpleTest.waitForExplicitFinish();
 function has_num(str)
 {
     return !!String(str).match(/^([\d.]+)/);
 }
 function any_unit_to_num(str)
 {
     return Number(String(str).match(/^([\d.]+)/)[1]);
 }
 var FUNC_NEGATIVE = "cubic-bezier(0.25, -2, 0.75, 1)";
 var FUNC_OVERONE = "cubic-bezier(0.25, 0, 0.75, 3)";
 var supported_properties = {
     "border-bottom-left-radius": [ test_radius_transition ],
     "border-bottom-right-radius": [ test_radius_transition ],
     "border-top-left-radius": [ test_radius_transition ],
     "border-top-right-radius": [ test_radius_transition ],
     "-moz-box-flex": [ test_float_zeroToOne_transition,
                        test_float_aboveOne_transition,
                        test_float_zeroToOne_clamped ],
     "box-shadow": [ test_shadow_transition ],
     "-moz-column-count": [ test_pos_integer_or_auto_transition,
                            test_integer_at_least_one_clamping ],
     "-moz-column-gap": [ test_length_transition,
                          test_length_clamped ],
     "-moz-column-rule-color": [ test_color_transition,
                                 test_border_color_transition ],
     "-moz-column-rule-width": [ test_length_transition,
                                 test_length_clamped ],
     "-moz-column-width": [ test_length_transition,
                            test_length_clamped ],
     "-moz-image-region": [ test_rect_transition ],
     "-moz-outline-radius-bottomleft": [ test_radius_transition ],
     "-moz-outline-radius-bottomright": [ test_radius_transition ],
     "-moz-outline-radius-topleft": [ test_radius_transition ],
     "-moz-outline-radius-topright": [ test_radius_transition ],
     "-moz-text-decoration-color": [ test_color_transition,
                                     test_border_color_transition ],
     "background-color": [ test_color_transition ],
     "background-position": [ test_background_position_transition,
                              // FIXME: We don't currently test clamping,
                              // since background-position uses calc() as
                              // an intermediate form.
                              /* test_length_percent_pair_unclamped */ ],
     "background-size": [ test_background_size_transition,
                          // FIXME: We don't currently test clamping,
                          // since background-size uses calc() as an
                          // intermediate form.
                          /* test_length_percent_pair_clamped */ ],
     "border-bottom-color": [ test_color_transition,
                              test_border_color_transition ],
     "border-bottom-width": [ test_length_transition,
                              test_length_clamped ],
     "border-left-color": [ test_color_transition,
                            test_border_color_transition ],
     "border-left-width": [ test_length_transition,
                            test_length_clamped ],
     "border-right-color": [ test_color_transition,
                             test_border_color_transition ],
     "border-right-width": [ test_length_transition,
                             test_length_clamped ],
     "border-spacing": [ test_length_pair_transition,
                         test_length_pair_transition_clamped ],
     "border-top-color": [ test_color_transition,
                           test_border_color_transition ],
     "border-top-width": [ test_length_transition,
                            test_length_clamped ],
     "bottom": [ test_length_transition, test_percent_transition,
                 test_length_percent_calc_transition,
                 test_length_unclamped, test_percent_unclamped ],
     "clip": [ test_rect_transition ],
     "color": [ test_color_transition ],
     "fill": [ test_color_transition ],
     "fill-opacity" : [ test_float_zeroToOne_transition,
                        // opacity is clamped in computed style
                        // (not parsing/interpolation)
                        test_float_zeroToOne_clamped ],
     "filter" : [ test_filter_transition ],
     "flex-basis": [ test_length_transition, test_percent_transition,
                     test_length_clamped, test_percent_clamped ],
     "flex-grow": [ test_float_zeroToOne_transition,
                    test_float_aboveOne_transition ],
     "flex-shrink": [ test_float_zeroToOne_transition,
                      test_float_aboveOne_transition ],
     "flood-color": [ test_color_transition ],
     "flood-opacity" : [ test_float_zeroToOne_transition,
                         // opacity is clamped in computed style
                         // (not parsing/interpolation)
                         test_float_zeroToOne_clamped ],
     "font-size": [ test_length_transition, test_percent_transition,
                    test_length_percent_calc_transition,
                    test_length_clamped, test_percent_clamped ],
     "font-size-adjust": [ test_float_zeroToOne_transition,
                           test_float_aboveOne_transition,
                           /* FIXME: font-size-adjust treats zero specially */
                           /* test_float_zeroToOne_clamped */ ],
     "font-stretch": [ test_font_stretch ],
     "font-weight": [ test_font_weight ],
     "height": [ test_length_transition, test_percent_transition,
                 test_length_percent_calc_transition,
                 test_length_clamped, test_percent_clamped ],
     "left": [ test_length_transition, test_percent_transition,
               test_length_percent_calc_transition,
               test_length_unclamped, test_percent_unclamped ],
     "letter-spacing": [ test_length_transition, test_length_unclamped ],
     "lighting-color": [ test_color_transition ],
     // NOTE: when calc() is supported on 'line-height', we should add
     // test_length_percent_calc_transition.
     "line-height": [ test_length_transition, test_percent_transition,
                      test_length_clamped, test_percent_clamped ],
     "margin-bottom": [ test_length_transition, test_percent_transition,
                        test_length_percent_calc_transition,
                        test_length_unclamped, test_percent_unclamped ],
     "margin-left": [ test_length_transition, test_percent_transition,
                      test_length_percent_calc_transition,
                      test_length_unclamped, test_percent_unclamped ],
     "margin-right": [ test_length_transition, test_percent_transition,
                       test_length_percent_calc_transition,
                       test_length_unclamped, test_percent_unclamped ],
     "margin-top": [ test_length_transition, test_percent_transition,
                     test_length_percent_calc_transition,
                     test_length_unclamped, test_percent_unclamped ],
     "marker-offset": [ test_length_transition,
                        test_length_unclamped ],
     "max-height": [ test_length_transition, test_percent_transition,
                     test_length_percent_calc_transition,
                     test_length_clamped, test_percent_clamped ],
     "max-width": [ test_length_transition, test_percent_transition,
                    test_length_percent_calc_transition,
                    test_length_clamped, test_percent_clamped ],
     "min-height": [ test_length_transition, test_percent_transition,
                     test_length_percent_calc_transition,
                     test_length_clamped, test_percent_clamped ],
     "min-width": [ test_length_transition, test_percent_transition,
                    test_length_percent_calc_transition,
                    test_length_clamped, test_percent_clamped ],
     "opacity" : [ test_float_zeroToOne_transition,
                   // opacity is clamped in computed style
                   // (not parsing/interpolation)
                   test_float_zeroToOne_clamped ],
     "order": [ test_integer_transition ],
     "outline-color": [ test_color_transition ],
     "outline-offset": [ test_length_transition, test_length_unclamped ],
     "outline-width": [ test_length_transition, test_length_clamped ],
     "padding-bottom": [ test_length_transition, test_percent_transition,
                         test_length_percent_calc_transition,
                         test_length_clamped, test_percent_clamped ],
     "padding-left": [ test_length_transition, test_percent_transition,
                       test_length_percent_calc_transition,
                       test_length_clamped, test_percent_clamped ],
     "padding-right": [ test_length_transition, test_percent_transition,
                        test_length_percent_calc_transition,
                        test_length_clamped, test_percent_clamped ],
     "padding-top": [ test_length_transition, test_percent_transition,
                      test_length_percent_calc_transition,
                      test_length_clamped, test_percent_clamped ],
     "perspective": [ test_length_transition ],
     "perspective-origin": [ test_length_pair_transition,
                             test_length_percent_pair_transition,
                             test_length_percent_pair_unclamped ],
     "right": [ test_length_transition, test_percent_transition,
                test_length_percent_calc_transition,
                test_length_unclamped, test_percent_unclamped ],
     "stop-color": [ test_color_transition ],
     "stop-opacity" : [ test_float_zeroToOne_transition,
                        // opacity is clamped in computed style
                        // (not parsing/interpolation)
                        test_float_zeroToOne_clamped ],
     "stroke": [ test_color_transition ],
     "stroke-dasharray": [ test_dasharray_transition ],
     // NOTE: when calc() is supported on 'stroke-dashoffset', we should
     // add test_length_percent_calc_transition.
     "stroke-dashoffset": [ test_length_transition, test_percent_transition,
                            test_length_unclamped, test_percent_unclamped ],
     "stroke-miterlimit": [ test_float_aboveOne_transition,
                            test_float_aboveOne_clamped ],
     "stroke-opacity" : [ test_float_zeroToOne_transition,
                          // opacity is clamped in computed style
                          // (not parsing/interpolation)
                          test_float_zeroToOne_clamped ],
     // NOTE: when calc() is supported on 'stroke-width', we should add
     // test_length_percent_calc_transition.
     "stroke-width": [ test_length_transition, test_percent_transition,
                       test_length_clamped, test_percent_clamped ],
     "text-indent": [ test_length_transition, test_percent_transition,
                      test_length_percent_calc_transition,
                      test_length_unclamped, test_percent_unclamped ],
     "text-shadow": [ test_shadow_transition ],
     "top": [ test_length_transition, test_percent_transition,
              test_length_percent_calc_transition,
              test_length_unclamped, test_percent_unclamped ],
     "transform": [ test_transform_transition ],
     "transform-origin": [ test_length_pair_transition,
                           test_length_percent_pair_transition,
                           test_length_percent_pair_unclamped ],
     "vertical-align": [ test_length_transition, test_percent_transition,
                         test_length_percent_calc_transition,
                         test_length_unclamped, test_percent_unclamped ],
     "visibility": [ test_visibility_transition ],
     "width": [ test_length_transition, test_percent_transition,
                test_length_percent_calc_transition,
                test_length_clamped, test_percent_clamped ],
     "word-spacing": [ test_length_transition, test_length_unclamped ],
     "z-index": [ test_integer_transition, test_pos_integer_or_auto_transition ],
 };
 var div = document.getElementById("display");
 var OMTAdiv = document.getElementById("transformTest");
 var cs = getComputedStyle(div, "");
 var OMTACs = getComputedStyle(OMTAdiv, "");
 var winUtils = SpecialPowers.getDOMWindowUtils(window);
 function computeMatrix(v) {
   div.style.setProperty("transform", v, "");
   var result = cs.getPropertyValue("transform");
   div.style.removeProperty("transform");
   return result;
 }
 var c_rot_15 = computeMatrix("rotate(15deg)");
 is(c_rot_15.substring(0,6), "matrix", "should compute to matrix value");
 var c_rot_60 = computeMatrix("rotate(60deg)");
 is(c_rot_60.substring(0,6), "matrix", "should compute to matrix value");
 var transformTestIndex = 0;
 var transformTests = [
   // rotate
   { start: 'none', end: 'rotate(60deg)',
     expected_uncomputed: 'rotate(15deg)',
     expected: c_rot_15 },
   { start: 'rotate(0)', end: 'rotate(60deg)',
     expected_uncomputed: 'rotate(15deg)',
     expected: c_rot_15 },
   { start: 'rotate(0deg)', end: 'rotate(60deg)',
     expected_uncomputed: 'rotate(15deg)',
     expected: c_rot_15 },
   { start: 'none', end: c_rot_60,
     expected: c_rot_15 },
   { start: 'none', end: 'rotate(360deg)',
     expected_uncomputed: 'rotate(90deg)',
     expected: computeMatrix('rotate(90deg)') },
   { start: 'none', end: 'rotatez(360deg)',
     expected_uncomputed: 'rotate(90deg)',
     expected: computeMatrix('rotate(90deg)') },
   { start: 'none', end: 'rotate(720deg)',
     expected_uncomputed: 'rotate(180deg)',
     expected: computeMatrix('rotate(180deg)') },
   { start: 'none', end: 'rotate(720deg)',
     expected_uncomputed: 'rotatez(180deg)',
     expected: computeMatrix('rotate(180deg)') },
   { start: 'none', end: 'rotate(1080deg)',
     expected_uncomputed: 'rotate(270deg)',
     expected: computeMatrix('rotate(270deg)') },
   { start: 'none', end: 'rotate(1080deg)',
     expected_uncomputed: 'rotate(270deg)',
     expected: computeMatrix('rotatez(270deg)') },
   { start: 'none', end: 'rotate(1440deg)',
     expected_uncomputed: 'rotate(360deg)',
     expected: computeMatrix('scale(1)'),
     round_error_ok: true },
   { start: 'none', end: 'rotatey(60deg)',
     expected_uncomputed: 'rotatey(15deg)',
     expected: computeMatrix('rotatey(15deg)') },
   { start: 'none', end: 'rotatey(720deg)',
     expected_uncomputed: 'rotatey(180deg)',
     expected: computeMatrix('rotatey(180deg)') },
   { start: 'none', end: 'rotatex(60deg)',
     expected_uncomputed: 'rotatex(15deg)',
     expected: computeMatrix('rotatex(15deg)') },
   { start: 'none', end: 'rotatex(720deg)',
     expected_uncomputed: 'rotatex(180deg)',
     expected: computeMatrix('rotatex(180deg)') },
   // translate
   { start: 'translate(20px)', end: 'none',
     expected_uncomputed: 'translate(15px)',
     expected: 'matrix(1, 0, 0, 1, 15, 0)' },
   { start: 'translate(20px, 12px)', end: 'none',
     expected_uncomputed: 'translate(15px, 9px)',
     expected: 'matrix(1, 0, 0, 1, 15, 9)' },
   { start: 'translateX(-20px)', end: 'none',
     expected_uncomputed: 'translateX(-15px)',
     expected: 'matrix(1, 0, 0, 1, -15, 0)' },
   { start: 'translateY(-40px)', end: 'none',
     expected_uncomputed: 'translateY(-30px)',
     expected: 'matrix(1, 0, 0, 1, 0, -30)' },
   { start: 'translateZ(40px)', end: 'none',
     expected_uncomputed: 'translateZ(30px)',
     expected: 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 30, 1)' },
   { start: 'none', end: 'translate3D(40px, 60px, -40px)',
     expected_uncomputed: 'translate3D(10px, 15px, -10px)',
     expected: 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 10, 15, -10, 1)' },
   // percentages are relative to 300px (width) and 50px (height)
   // per the prerequisites in property_database.js
   { start: 'translate(20%)', end: 'none',
     expected_uncomputed: 'translate(15%)',
     expected: 'matrix(1, 0, 0, 1, 45, 0)',
     round_error_ok: true },
   { start: 'translate(20%, 12%)', end: 'none',
     expected_uncomputed: 'translate(15%, 9%)',
     expected: 'matrix(1, 0, 0, 1, 45, 4.5)',
     round_error_ok: true },
   { start: 'translateX(-20%)', end: 'none',
     expected_uncomputed: 'translateX(-15%)',
     expected: 'matrix(1, 0, 0, 1, -45, 0)',
     round_error_ok: true },
   { start: 'translateY(-40%)', end: 'none',
     expected_uncomputed: 'translateY(-30%)',
     expected: 'matrix(1, 0, 0, 1, 0, -15)',
     round_error_ok: true,
     big_omta_round_error: true },
   { start: 'none', end: 'rotate(90deg) translate(20%, 20%) rotate(-90deg)',
     expected_uncomputed: 'rotate(22.5deg) translate(5%, 5%) rotate(-22.5deg)',
     round_error_ok: true },
   { start: 'none', end: 'rotate(-90deg) translate(20%, 20%) rotate(90deg)',
     expected_uncomputed: 'rotate(-22.5deg) translate(5%, 5%) rotate(22.5deg)',
     round_error_ok: true },
   // test percent translation using matrix decomposition
   { start: 'rotate(45deg) rotate(-45deg)',
     end: 'rotate(90deg) translate(20%, 20%) rotate(-90deg)',
     expected: 'matrix(1, 0, 0, 1, -2.5, 15)',
     round_error_ok: true },
   { start: 'rotate(45deg) rotate(-45deg)',
     end: 'rotate(-90deg) translate(20%, 20%) rotate(90deg)',
     expected: 'matrix(1, 0, 0, 1, 2.5, -15)',
     round_error_ok: true },
   // test calc() in translate
   // Note that font-size: is 20px, and that percentages are relative
   // to 300px (width) and 50px (height) per the prerequisites in
   // property_database.js
   { start: 'translateX(20%)', /* 60px */
     end: 'translateX(calc(10% + 1em))', /* 30px + 20px = 50px */
     expected_uncomputed: 'translateX(calc(17.5% + 0.25em))',
     expected: 'matrix(1, 0, 0, 1, 57.5, 0)',
     big_omta_round_error: true },
   { start: 'translate(calc(0.75 * 3em + 1.5 * 10%), calc(0.5 * 5em + 0.5 * 8%))', /* 90px, 52px */
     end: 'rotate(90deg) translateY(20%) rotate(90deg) translateY(calc(10% + 0.5em)) rotate(180deg)', /* -10px, -15px */
     expected: 'matrix(1, 0, 0, 1, 65, 35.25)',
     big_omta_round_error: true },
   // scale
   { start: 'scale(2)', end: 'none',
     expected_uncomputed: 'scale(1.75)',
     expected: 'matrix(1.75, 0, 0, 1.75, 0, 0)' },
   { start: 'none', end: 'scale(0.4)',
     expected_uncomputed: 'scale(0.85)',
     expected: 'matrix(0.85, 0, 0, 0.85, 0, 0)',
     round_error_ok: true },
   { start: 'scale(2)', end: 'scale(-2)',
     expected_uncomputed: 'scale(1)',
     expected: 'matrix(1, 0, 0, 1, 0, 0)' },
   { start: 'scale(2)', end: 'scale(-6)',
     expected_uncomputed: 'scale(0)',
     expected: 'matrix(0, 0, 0, 0, 0, 0)' },
   { start: 'scale(2, 0.4)', end: 'none',
     expected_uncomputed: 'scale(1.75, 0.55)',
     expected: 'matrix(1.75, 0, 0, 0.55, 0, 0)',
     round_error_ok: true },
   { start: 'scaleX(3)', end: 'none',
     expected_uncomputed: 'scaleX(2.5)',
     expected: 'matrix(2.5, 0, 0, 1, 0, 0)' },
   { start: 'scaleY(5)', end: 'none',
     expected_uncomputed: 'scaleY(4)',
     expected: 'matrix(1, 0, 0, 4, 0, 0)' },
   { start: 'scaleZ(5)', end: 'none',
     expected_uncomputed: 'scaleZ(4)',
     expected: 'matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 4, 0, 0, 0, 0, 1)' },
   { start: 'none', end: 'scale3D(5, 5, 5)',
     expected_uncomputed: 'scale3D(2, 2, 2)',
     expected: 'matrix3d(2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1)' },
   // skew
   { start: 'skewX(45deg)', end: 'none',
     expected_uncomputed: 'skewX(33.75deg)' },
   { start: 'skewY(45deg)', end: 'none',
     expected_uncomputed: 'skewY(33.75deg)' },
   { start: 'skew(45deg)', end: 'none',
     expected_uncomputed: 'skew(33.75deg)' },
   { start: 'skew(45deg, 45deg)', end: 'none',
     expected_uncomputed: 'skew(33.75deg, 33.75deg)' },
   { start: 'skewX(45deg)', end: 'skewX(-45deg)',
     expected_uncomputed: 'skewX(22.5deg)' },
   { start: 'skewX(0)', end: 'skewX(-45deg)',
     expected_uncomputed: 'skewX(-11.25deg)' },
   { start: 'skewY(45deg)', end: 'skewY(-45deg)',
     expected_uncomputed: 'skewY(22.5deg)' },
   // matrix : skewX
   { start: 'matrix(1, 0, 3, 1, 0, 0)', end: 'none',
     expected: 'matrix(1, 0, ' + 3 * 0.75 + ', 1, 0, 0)',
     round_error_ok: true },
   { start: 'skewX(0)', end: 'skewX(-45deg) translate(0)',
     expected: 'matrix(1, 0, -0.25, 1, 0, 0)',
     round_error_ok: true },
   // matrix : rotate
   { start: 'rotate(-30deg)', end: 'matrix(0, 1, -1, 0, 0, 0)',
     expected: 'matrix(1, 0, 0, 1, 0, 0)',
     round_error_ok: true },
   { start: 'rotate(-30deg) translateX(0)',
     end: 'translateX(0) rotate(-90deg)',
     expected: computeMatrix('rotate(-45deg)'),
     round_error_ok: true },
   // matrix decomposition of skewY
   { start: 'skewY(60deg)', end: 'skewY(-60deg) translateX(0)',
     /* rotate(30deg) skewX(60deg)/2 scale(2, 0.5) */
     expected: computeMatrix('rotate(30deg) skewX(' + Math.atan(Math.tan(Math.PI * 60/180) / 2) + 'rad) scale(2, 0.5)'),
     round_error_ok: true },
   // matrix decomposition
   // Four pairs of the same matrix expressed different ways.
   { start: 'matrix(-1, 0, 0, -1, 0, 0)', /* rotate(180deg) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(135deg)') },
   { start: 'scale(-1)', end: 'none',
     expected_uncomputed: 'scale(-0.5)',
     expected: 'matrix(-0.5, 0, 0, -0.5, 0, 0)' },
   { start: 'rotate(180deg)', end: 'none',
     expected_uncomputed: 'rotate(135deg)' },
   { start: 'rotate(-180deg)', end: 'none',
     expected_uncomputed: 'rotate(-135deg)',
     expected: computeMatrix('rotate(225deg)') },
   // matrix followed by scale
   { start: 'matrix(2, 0, 0, 2, 10, 20) scale(2)',
     end: 'none',
     expected: 'matrix(3.0625, 0, 0, 3.0625, 7.5, 15)' },
   // ... and a bunch of similar possibilities.  The spec isn't settled
   // here; there are multiple options.  See:
   // http://lists.w3.org/Archives/Public/www-style/2010Jun/0602.html
   { start: 'matrix(-1, 0, 0, 1, 0, 0)', /* scaleX(-1) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('scaleX(-0.5)') },
   { start: 'matrix(1, 0, 0, -1, 0, 0)', /* rotate(-180deg) scaleX(-1) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(-135deg) scaleX(-0.5)') },
   { start: 'matrix(0, 1, 1, 0, 0, 0)', /* rotate(-90deg) scaleX(-1) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(-67.5deg) scaleX(-0.5)') },
   { start: 'matrix(0, -1, 1, 0, 0, 0)', /* rotate(-90deg) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(-67.5deg)') },
   { start: 'matrix(0, 1, -1, 0, 0, 0)', /* rotate(90deg) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(67.5deg)') },
   { start: 'matrix(0, -1, -1, 0, 0, 0)', /* rotate(90deg) scaleX(-1) */
     end: 'matrix(1, 0, 0, 1, 0, 0)',
     expected: computeMatrix('rotate(67.5deg) scaleX(-0.5)') },
   // Similar decomposition tests, but with skewX.  I checked visually
   // that the sign of the skew was correct by checking visually that
   // the animations in
   // http://dbaron.org/css/test/2010/transition-negative-determinant
   // don't flip when they finish, and then wrote tests corresponding
   // to the current code's behavior.
   // ... start with four with positive determinants
   { start: 'none',
     end: 'matrix(1, 0, 1.5, 1, 0, 0)',
     /* skewX(atan(1.5)) */
     expected: 'matrix(1, 0, ' + 1.5 * 0.25 + ', 1, 0, 0)',
     round_error_ok: true },
   { start: 'none',
     end: 'matrix(-1, 0, 2, -1, 0, 0)',
             /* rotate(180deg) skewX(atan(-2)) */
     expected: computeMatrix('rotate(45deg) matrix(1, 0, ' + -2 * 0.25 + ', 1, 0, 0)'),
     round_error_ok: true },
   { start: 'none',
     end: 'matrix(0, -1, 1, -3, 0, 0)',
             /* rotate(-90deg) skewX(atan(3)) */
     expected: computeMatrix('rotate(-22.5deg) matrix(1, 0, ' + 3 * 0.25 + ', 1, 0, 0)'),
     round_error_ok: true },
   { start: 'none',
     end: 'matrix(0, 1, -1, 4, 0, 0)',
             /* rotate(90deg) skewX(atan(4)) */
     expected: computeMatrix('rotate(22.5deg) matrix(1, 0, ' + 4 * 0.25 + ', 1, 0, 0)'),
     round_error_ok: true },
   // and then four with negative determinants
   { start: 'none',
     end: 'matrix(1, 0, 1, -1, 0, 0)',
             /* rotate(-180deg) skewX(atan(-1)) scaleX(-1) */
     expected: computeMatrix('rotate(-45deg) matrix(1, 0, ' + -1 * 0.25 + ', 1, 0, 0) scaleX(0.5)'),
     round_error_ok: true },
   { start: 'none',
     end: 'matrix(-1, 0, -1, 1, 0, 0)',
             /* skewX(atan(-1)) scaleX(-1) */
     expected: computeMatrix('matrix(1, 0, ' + -1 * 0.25 + ', 1, 0, 0) scaleX(0.5)') },
   { start: 'none',
     end: 'matrix(0, 1, 1, -2, 0, 0)',
             /* rotate(-90deg) skewX(atan(2)) scaleX(-1) */
     expected: computeMatrix('rotate(-22.5deg) matrix(1, 0, ' + 2 * 0.25 + ', 1, 0, 0) scaleX(0.5)'),
     round_error_ok: true },
   { start: 'none',
     end: 'matrix(0, -1, -1, 0.5, 0, 0)',
             /* rotate(90deg) skewX(atan(0.5)) scaleX(-1) */
     expected: computeMatrix('rotate(22.5deg) matrix(1, 0, ' + 0.5 * 0.25 + ', 1, 0, 0) scaleX(0.5)'),
     round_error_ok: true },
   // lists vs. matrix decomposition
   { start: 'translate(10px) skewY(45deg)',
     end: 'translate(30px) skewY(-45deg)',
     expected_uncomputed: 'translate(15px) skewY(22.5deg)' },
   { start: 'skewY(45deg) rotate(90deg)',
     end: 'skewY(-45deg) rotate(90deg)',
     expected_uncomputed: 'skewY(22.5deg) rotate(90deg)' },
   { start: 'skewY(45deg) rotate(90deg) translate(0)',
     end: 'skewY(-45deg) rotate(90deg)',
     expected: 'matrix(0, 1, -1, -0.5, 0, 0)',
     round_error_ok: true },
   { start: 'skewX(45deg) rotate(90deg)',
     end: 'skewX(-45deg) rotate(90deg)',
     expected_uncomputed: 'skewX(22.5deg) rotate(90deg)' },
   { start: 'skewX(-60deg) rotate(90deg) translate(0)',
     end: 'skewX(60deg) rotate(90deg)',
     expected: computeMatrix('rotate(120deg) skewX(' + Math.atan(Math.tan(Math.PI * 60/180) / 2) + 'rad) scale(2, 0.5)'),
     round_error_ok: true },
 ];
 var filterTests = [
   { start: "none", end: "none",
     expected: ["none"] },
   // function from none (number/length)
   { start: "none", end: "brightness(0.5)",
     expected: ["brightness", 0.875] },
   { start: "none", end: "contrast(0.5)",
     expected: ["contrast", 0.875] },
   { start: "none", end: "grayscale(0.5)",
     expected: ["grayscale", 0.125] },
   { start: "none", end: "invert(0.5)",
     expected: ["invert", 0.125] },
   { start: "none", end: "opacity(0.5)",
     expected: ["opacity", 0.875] },
   { start: "none", end: "saturate(0.5)",
     expected: ["saturate", 0.875] },
   { start: "none", end: "sepia(0.5)",
     expected: ["sepia", 0.125] },
   { start: "none", end: "blur(50px)",
     expected: ["blur", 12.5] },
   // function to none (number/length)
   { start: "brightness(0.5)", end: "none",
     expected: ["brightness", 0.625] },
   { start: "contrast(0.5)", end: "none",
     expected: ["contrast", 0.625] },
   { start: "grayscale(0.5)", end: "none",
     expected: ["grayscale", 0.375] },
   { start: "invert(0.5)", end: "none",
     expected: ["invert", 0.375] },
   { start: "opacity(0.5)", end: "none",
     expected: ["opacity", 0.625] },
   { start: "saturate(0.5)", end: "none",
     expected: ["saturate", 0.625] },
   { start: "sepia(0.5)", end: "none",
     expected: ["sepia", 0.375] },
   { start: "blur(50px)", end: "none",
     expected: ["blur", 37.5] },
   // function to same function (number/length)
   { start: "brightness(0.25)", end: "brightness(0.75)",
     expected: ["brightness", 0.375] },
   { start: "contrast(0.25)", end: "contrast(0.75)",
     expected: ["contrast", 0.375] },
   { start: "grayscale(0.25)", end: "grayscale(0.75)",
     expected: ["grayscale", 0.375] },
   { start: "invert(0.25)", end: "invert(0.75)",
     expected: ["invert", 0.375] },
   { start: "opacity(0.25)", end: "opacity(0.75)",
     expected: ["opacity", 0.375] },
   { start: "saturate(0.25)", end: "saturate(0.75)",
     expected: ["saturate", 0.375] },
   { start: "sepia(0.25)", end: "sepia(0.75)",
     expected: ["sepia", 0.375] },
   { start: "blur(25px)", end: "blur(75px)",
     expected: ["blur", 37.5] },
   // function to same function (percent)
   { start: "brightness(25%)", end: "brightness(75%)",
     expected: ["brightness", 0.375] },
   { start: "contrast(25%)", end: "contrast(75%)",
     expected: ["contrast", 0.375] },
   { start: "grayscale(25%)", end: "grayscale(75%)",
     expected: ["grayscale", 0.375] },
   { start: "invert(25%)", end: "invert(75%)",
     expected: ["invert", 0.375] },
   { start: "opacity(25%)", end: "opacity(75%)",
     expected: ["opacity", 0.375] },
   { start: "saturate(25%)", end: "saturate(75%)",
     expected: ["saturate", 0.375] },
   { start: "sepia(25%)", end: "sepia(75%)",
     expected: ["sepia", 0.375] },
   // function to same function (percent, number/length)
   { start: "brightness(0.25)", end: "brightness(75%)",
     expected: ["brightness", 0.375] },
   { start: "contrast(25%)", end: "contrast(0.75)",
     expected: ["contrast", 0.375] },
   // hue-rotate with different angle values
   { start: "hue-rotate(0deg)", end: "hue-rotate(720deg)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0rad)", end: "hue-rotate("+4*Math.PI+"rad)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0grad)", end: "hue-rotate(800grad)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0turn)", end: "hue-rotate(2turn)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0deg)", end: "hue-rotate("+4*Math.PI+"rad)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0turn)", end: "hue-rotate(800grad)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0grad)", end: "hue-rotate("+4*Math.PI+"rad)",
     expected: ["hue-rotate", Math.PI.toFixed(5)] },
   { start: "hue-rotate(0grad)", end: "hue-rotate(0turn)",
     expected: ["hue-rotate", 0] },
   // multiple matching functions, same length
   { start: "contrast(25%) brightness(0.25) blur(25px) sepia(75%)",
     end: "contrast(75%) brightness(0.75) blur(75px) sepia(25%)",
     expected: ["contrast", 0.375, "brightness", 0.375, "blur", 37.5, "sepia", 0.625] },
   { start: "invert(25%) brightness(0.25) blur(25px) invert(50%) brightness(0.5) blur(50px)",
     end: "invert(75%) brightness(0.75) blur(75px)",
     expected: ["invert", 0.375, "brightness", 0.375, "blur", 37.5, "invert", 0.375, "brightness", 0.625, "blur", 37.5] },
   // multiple matching functions, different length
   { start: "contrast(25%) brightness(0.5) blur(50px)",
     end: "contrast(75%)",
     expected: ["contrast", 0.375, "brightness", 0.625, "blur", 37.5] },
   // mismatching filter functions
   { start: "contrast(0%)", end: "blur(10px)",
     expected: ["blur", 10] },
   // not supported interpolations
   { start: "none", end: "url('#b')",
     expected: ["url", "\""+document.URL+"#b\""] },
   { start: "url('#a')", end: "none",
     expected: ["none"] },
   { start: "url('#a')", end: "url('#b')",
     expected: ["url", "\""+document.URL+"#b\""] },
   { start: "url('#a')", end: "blur(10px)",
     expected: ["blur", 10] },
   { start: "blur(10px)", end: "url('#a')",
     expected: ["url", "\""+document.URL+"#a\""] },
   { start: "blur(0px) url('#a')", end: "blur(20px)",
     expected: ["blur", 20] },
   { start: "blur(0px)", end: "blur(20px) url('#a')",
     expected: ["blur", 20, "url", "\""+document.URL+"#a\""] },
   { start: "contrast(0.25) brightness(0.25) blur(25px)",
     end: "contrast(0.75) url('#a')",
     expected: ["contrast", 0.75, "url", "\""+document.URL+"#a\""] },
   { start: "contrast(0.25) brightness(0.25) blur(75px)",
     end: "brightness(0.75) contrast(0.75) blur(25px)",
     expected: ["brightness", 0.75, "contrast", 0.75, "blur", 25] },
   { start: "contrast(0.25) brightness(0.25) blur(25px)",
     end: "contrast(0.75) brightness(0.75) contrast(0.75)",
     expected: ["contrast", 0.75, "brightness", 0.75, "contrast", 0.75] },
   // drop-shadow animation
   { start: "none",
     end: "drop-shadow(rgb(0, 0, 0) 4px 4px 0px)",
     expected: ["drop-shadow", "rgba(0, 0, 0, 0.25) 1px 1px 0px"] },
   { start: "drop-shadow(rgb(0, 0, 0) 0px 0px 0px)",
     end: "drop-shadow(rgb(0, 0, 0) 4px 4px 0px)",
     expected: ["drop-shadow", "rgb(0, 0, 0) 1px 1px 0px"] },
   { start: "drop-shadow(#038000 4px 4px)",
     end: "drop-shadow(8px 8px 8px red)",
     expected: ["drop-shadow", "rgb(66, 96, 0) 5px 5px 2px"] },
   { start: "blur(25px) drop-shadow(8px 8px)",
     end: "blur(75px)",
     expected: ["blur", 37.5, "drop-shadow", "rgb(0, 0, 0) 6px 6px 0px"] },
   { start: "blur(75px)",
     end: "blur(25px) drop-shadow(8px 8px)",
     expected: ["blur", 62.5, "drop-shadow", "rgb(0, 0, 0) 2px 2px 0px"] },
   { start: "drop-shadow(2px 2px blue)",
     end: "none",
     expected: ["drop-shadow", "rgba(0, 0, 255, 0.75) 1.5px 1.5px 0px"] },
 ];
 var prop;
 for (prop in supported_properties) {
   // Test that prop is in the property database.
   ok(prop in gCSSProperties, "property " + prop + " in gCSSProperties");
   // Test that the entry has at least one test function.
   ok(supported_properties[prop].length > 0,
      "property " + prop + " must have at least one test function");
 }
 // Return a consistent sampling of |count| values out of |array|.
 function sample_array(array, count) {
   if (count <= 0) {
     ok(false, "unexpected count");
     return [];
   }
   var ratio = array.length / count;
   if (ratio <= 1) {
     return array;
   }
   var result = new Array(count);
   for (var i = 0; i < count; ++i) {
     result[i] = array[Math.floor(i * ratio)];
   }
   return result;
 }
 // Test that transitions don't do anything (i.e., aren't supported) on
 // the properties not in our test list above (and not transition
 // properties themselves).
 for (prop in gCSSProperties) {
   var info = gCSSProperties[prop];
   if (!(prop in supported_properties) &&
       info.type != CSS_TYPE_TRUE_SHORTHAND &&
       !("alias_for" in info) &&
       !prop.match(/^transition-/) &&
       // FIXME (Bug 119078): THIS SHOULD REALLY NOT BE NEEDED!
       prop != "-moz-binding") {
     if ("prerequisites" in info) {
       var prereqs = info.prerequisites;
       for (var prereq in prereqs) {
         div.style.setProperty(prereq, prereqs[prereq], "");
       }
     }
     var all_values = info.initial_values.concat(info.other_values);
     if (all_values.length > 50) {
       // Since we're using an O(N^2) algorithm here, reduce the list of
       // values that we want to test.  (This test is really only testing
       // that somebody didn't make a property animatable without
       // modifying this test.  The odds of somebody doing that without
       // making at least one of the many pairs of values we have left
       // animatable seems pretty low, at least relative to the chance
       // that any pair of the values listed in property_database.js is
       // animatable.)
       //
       // That said, we still try to use all of the start of the list on
       // the assumption that the more basic values are likely to be at
       // the beginning of the list.
       all_values = [].concat(info.initial_values.slice(0,2),
                              sample_array(info.initial_values.slice(2), 6),
                              info.other_values.slice(0, 10),
                              sample_array(info.other_values.slice(10), 40));
     }
     var all_computed = [];
     for (var idx in all_values) {
       var val = all_values[idx];
       div.style.setProperty(prop, val, "");
       all_computed.push(cs.getPropertyValue(prop));
     }
     div.style.removeProperty(prop);
     div.style.setProperty("transition", prop + " 20s linear", "");
     for (var i = 0; i < all_values.length; ++i) {
       for (var j = i + 1; j < all_values.length; ++j) {
         div.style.setProperty(prop, all_values[i], "");
         is(cs.getPropertyValue(prop), all_computed[i],
            "transitions not supported for property " + prop +
            " value " + all_values[i]);
         div.style.setProperty(prop, all_values[j], "");
         is(cs.getPropertyValue(prop), all_computed[j],
            "transitions not supported for property " + prop +
            " value " + all_values[j]);
       }
     }
     div.style.removeProperty("transition");
     div.style.removeProperty(prop);
     if ("prerequisites" in info) {
       var prereqs = info.prerequisites;
       for (var prereq in prereqs) {
         div.style.removeProperty(prereq);
       }
     }
   }
 }
 // Do 4-second linear transitions with -1 second transition delay and
 // linear timing function so that we can expect the transition to be
 // one quarter of the way through the value space right after changing
 // the property.
 div.style.setProperty("transition-duration", "4s", "");
 div.style.setProperty("transition-delay", "-1s", "");
 div.style.setProperty("transition-timing-function", "linear", "");
 for (prop in supported_properties) {
   var tinfo = supported_properties[prop];
   var info = gCSSProperties[prop];
   isnot(info.type, CSS_TYPE_TRUE_SHORTHAND,
         prop + " must not be a shorthand");
   if ("prerequisites" in info) {
     var prereqs = info.prerequisites;
     for (var prereq in prereqs) {
       // We don't want the 19px font-size prereq of line-height, since we
       // want to leave it 20px.
       if (prop != "line-height" || prereq != "font-size") {
         div.style.setProperty(prereq, prereqs[prereq], "");
       }
     }
   }
   for (var idx in tinfo) {
     tinfo[idx](prop);
   }
   // Make sure to unset the property and stop transitions on it.
   div.style.setProperty("transition-property", "none", "");
   div.style.removeProperty(prop);
   cs.getPropertyValue(prop);
   if ("prerequisites" in info) {
     var prereqs = info.prerequisites;
     for (var prereq in prereqs) {
       div.style.removeProperty(prereq);
     }
   }
 }
 div.style.removeProperty("transition");
 function get_distance(prop, v1, v2)
 {
   return SpecialPowers.DOMWindowUtils
            .computeAnimationDistance(div, prop, v1, v2);
 }
 function check_distance(prop, start, quarter, end)
 {
   var sq = get_distance(prop, start, quarter);
   var se = get_distance(prop, start, end);
   var qe = get_distance(prop, quarter, end);
   ok(Math.abs((sq * 4 - se) / se) < 0.0001, "property '" + prop + "': distance " + sq + " from start '" + start + "' to quarter '" + quarter + "' should be quarter distance " + se + " from start '" + start + "' to end '" + end + "'");
   ok(Math.abs((qe * 4 - se * 3) / se) < 0.0001, "property '" + prop + "': distance " + qe + " from quarter '" + quarter + "' to end '" + end + "' should be three quarters distance " + se + " from start '" + start + "' to end '" + end + "'");
 }
 function test_length_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "4px", "");
   is(cs.getPropertyValue(prop), "4px",
      "length-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "12px", "");
   is(cs.getPropertyValue(prop), "6px",
      "length-valued property " + prop + ": interpolation of lengths");
   check_distance(prop, "4px", "6px", "12px");
 }
 function test_length_clamped(prop) {
   test_length_clamped_or_unclamped(prop, true);
 }
 function test_length_unclamped(prop) {
   test_length_clamped_or_unclamped(prop, false);
 }
 function test_length_clamped_or_unclamped(prop, is_clamped) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0px", "");
   is(cs.getPropertyValue(prop), "0px",
      "length-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "100px", "");
   (is_clamped ? is : isnot)(cs.getPropertyValue(prop), "0px",
      "length-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 // Test using float values in the range [0, 1] (e.g. opacity)
 function test_float_zeroToOne_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0.3", "");
   is(cs.getPropertyValue(prop), "0.3",
      "float-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "0.8", "");
   is(cs.getPropertyValue(prop), "0.425",
      "float-valued property " + prop + ": interpolation of floats");
   check_distance(prop, "0.3", "0.425", "0.8");
 }
 function test_float_zeroToOne_clamped(prop) {
   test_float_zeroToOne_clamped_or_unclamped(prop, true);
 }
 function test_float_zeroToOne_unclamped(prop) {
   test_float_zeroToOne_clamped_or_unclamped(prop, false);
 }
 function test_float_zeroToOne_clamped_or_unclamped(prop, is_clamped) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0", "");
   is(cs.getPropertyValue(prop), "0",
      "float-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "1", "");
   (is_clamped ? is : isnot)(cs.getPropertyValue(prop), "0",
      "float-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 // Test using float values in the range [1, infinity) (e.g. stroke-miterlimit)
 function test_float_aboveOne_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "1", "");
   is(cs.getPropertyValue(prop), "1",
      "float-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "2.1", "");
   is(cs.getPropertyValue(prop), "1.275",
      "float-valued property " + prop + ": interpolation of floats");
   check_distance(prop, "1", "1.275", "2.1");
 }
 function test_float_aboveOne_clamped(prop) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "1", "");
   is(cs.getPropertyValue(prop), "1",
      "float-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "5", "");
   is(cs.getPropertyValue(prop), "1",
      "float-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_percent_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "25%", "");
   var av = cs.getPropertyValue(prop);
   var a = any_unit_to_num(av);
   div.style.setProperty(prop, "75%", "");
   var bv = cs.getPropertyValue(prop);
   var b = any_unit_to_num(bv);
   isnot(b, a, "different percentages (" + av + " and " + bv +
               ") should be different for " + prop);
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "25%", "");
   var res = cs.getPropertyValue(prop);
   is(any_unit_to_num(res) * 4, 3 * b + a,
      "percent-valued property " + prop + ": interpolation of percents: " +
      res + " should be a quarter of the way between " + bv + " and " + av);
   ok(has_num(res),
      "percent-valued property " + prop + ": percent computes to number");
   check_distance(prop, "25%", "37.5%", "75%");
 }
 function test_percent_clamped(prop) {
   test_percent_clamped_or_unclamped(prop, true);
 }
 function test_percent_unclamped(prop) {
   test_percent_clamped_or_unclamped(prop, false);
 }
 function test_percent_clamped_or_unclamped(prop, is_clamped) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0%", "");
   var zero_val = cs.getPropertyValue(prop); // flushes too
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "150%", "");
   (is_clamped ? is : isnot)(cs.getPropertyValue(prop), zero_val,
      "percent-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_length_percent_calc_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0%", "");
   var av = cs.getPropertyValue(prop);
   var a = any_unit_to_num(av);
   div.style.setProperty(prop, "100%", "");
   var bv = cs.getPropertyValue(prop);
   var b = any_unit_to_num(bv);
   div.style.setProperty(prop, "100px", "");
   var cv = cs.getPropertyValue(prop);
   var c = any_unit_to_num(cv);
   isnot(b, a, "different percentages (" + av + " and " + bv +
               ") should be different for " + prop);
   div.style.setProperty(prop, "50%", "");
   var v1v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v1v) * 2, a + b,
      "computed value before transition for " + prop + ": '" +
      v1v + "' should be halfway " +
      "between '" + av + "' + and '" + bv + "'.");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "200px", "");
   var v2v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v2v) * 8, 5*a + 3*b + 4*c,
      "interpolation between length and percent for " + prop + ": '"
      + v2v + "'");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "calc(25% + 100px)", "");
   v1v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v1v) * 4, b + 4*c,
      "computed value before transition for " + prop + ": '" + v1v + "'");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "75%", "");
   v2v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v2v) * 8, 5*a + 3*b + 6*c,
      "interpolation between calc() and percent for " + prop + ": '" +
      v2v + "'");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "150px", "");
   v1v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v1v) * 2, c * 3,
      "computed value before transition for " + prop + ": '" + v1v + "'");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "calc(50% + 50px)", "");
   v2v = cs.getPropertyValue(prop);
   is(any_unit_to_num(v2v) * 8, 7 * a + b + 10*c,
      "interpolation between length and calc() for " + prop + ": '" +
      v2v + "'");
   check_distance(prop, "50%", "calc(37.5% + 50px)", "200px");
   check_distance(prop, "calc(25% + 100px)", "calc(37.5% + 75px)",
                        "75%");
   check_distance(prop, "150px", "calc(125px + 12.5%)",
                        "calc(50% + 50px)");
 }
 function test_color_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rgb(255, 28, 0)", "");
   is(cs.getPropertyValue(prop), "rgb(255, 28, 0)",
      "color-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "rgb(75, 84, 128)", "");
   is(cs.getPropertyValue(prop), "rgb(210, 42, 32)",
      "color-valued property " + prop + ": interpolation of colors");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rgb(128, 64, 0)", "");
   (prop == "color" ? div.parentNode : div).style.
     setProperty("color", "rgb(0, 0, 128)", "");
   is(cs.getPropertyValue(prop), "rgb(128, 64, 0)",
      "color-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "currentColor", "");
   is(cs.getPropertyValue(prop), "rgb(96, 48, 32)",
      "color-valued property " + prop + ": interpolation of currentColor");
   check_distance(prop, "rgb(255, 28, 0)", "rgb(210, 42, 32)",
                        "rgb(75, 84, 128)");
   check_distance(prop, "rgb(128, 64, 0)", "rgb(96, 48, 32)", "currentColor");
   (prop == "color" ? div.parentNode : div).style.removeProperty("color");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rgb(0, 255, 0)", "");
   var vals = cs.getPropertyValue(prop).match(/rgb\(([^, ]*), ([^, ]*), ([^, ]*)\)/);
   is(vals.length, 4,
      "color-valued property " + prop + ": flush before clamping test (length)");
   is(vals[1], "0",
      "color-valued property " + prop + ": flush before clamping test (red)");
   is(vals[2], "255",
      "color-valued property " + prop + ": flush before clamping test (green)");
   is(vals[3], "0",
      "color-valued property " + prop + ": flush before clamping test (blue)");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "rgb(255, 0, 128)", "");
   // FIXME: Once we support non-sRGB colors, these tests will need fixing.
   vals = cs.getPropertyValue(prop).match(/rgb\(([^, ]*), ([^, ]*), ([^, ]*)\)/);
   is(vals.length, 4,
      "color-valued property " + prop + ": clamping of negatives (length)");
   is(vals[1], "0",
      "color-valued property " + prop + ": clamping of negatives (red)");
   is(vals[2], "255",
      "color-valued property " + prop + ": clamping of above-range (green)");
   is(vals[3], "0",
      "color-valued property " + prop + ": clamping of negatives (blue)");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_border_color_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rgb(128, 64, 0)", "");
   div.style.setProperty("color", "rgb(0, 0, 128)", "");
   is(cs.getPropertyValue(prop), "rgb(128, 64, 0)",
      "color-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.removeProperty(prop);
   is(cs.getPropertyValue(prop), "rgb(96, 48, 32)",
      "color-valued property " + prop + ": interpolation of initial value");
   check_distance(prop, "rgb(128, 64, 0)", "rgb(96, 48, 32)", "initial");
   div.style.removeProperty("color");
 }
 function filter_function_list_equals(computedValStr, expectedList)
 {
   // Check simple case "none"
   if (computedValStr == "none" && computedValStr == expectedList[0]) {
     return true;
   }
   // The regular expression does not filter out the last parenthesis.
   // Remove last character for now.
   is(computedValStr.substring(computedValStr.length - 1, computedValStr.length),
                               ')', "Check if last character is close-paren");
   computedValStr = computedValStr.substring(0, computedValStr.length - 1);
   var reg = /\)*\s*(blur|brightness|contrast|grayscale|hue\-rotate|invert|opacity|saturate|sepia|drop\-shadow|url)\(/
   var matches = computedValStr.split(reg);
   // First item must be empty. All other items are of functionName, functionValue.
   if (!matches || matches.shift() != "") {
     ok(false, "computed style of 'filter' isn't in the format we expect");
     return false;
   }
   // Odd items are the function name, even items the function value.
   if (!matches.length || matches.length % 2 ||
       expectedList.length != matches.length) {
     ok(false, "computed style of 'filter' isn't in the format we expect");
     return false;
   }
   for (var i = 0; i < matches.length; i += 2) {
     var functionName = matches[i];
     var functionValue = matches[i+1];
     var expected = expectedList[i+1]
     var tolerance = 0;
     // Check if we have the expected function.
     if (functionName != expectedList[i]) {
       return false;
     }
     if (functionName == "blur") {
       // Last two characters must be "px".
       if (functionValue.search("px") != functionValue.length - 2) {
         return false;
       }
       functionValue = functionValue.substring(0, functionValue.length - 2);
     } else if (functionName == "hue-rotate") {
       // Last two characters must be "rad".
       if (functionValue.search("rad") != functionValue.length - 3) {
         return false;
       }
       tolerance = 0.001;
       functionValue = functionValue.substring(0, functionValue.length - 3);
     } else if (functionName == "drop-shadow" || functionName == "url") {
       if (functionValue != expected) {
         return false;
       }
       continue;
     }
     // Check if string is not a number or difference is not in tolerance level.
     if (isNaN(functionValue) ||
       Math.abs(parseFloat(functionValue) - expected) > tolerance) {
       return false;
     }
   }
   return true;
 }
 function test_filter_transition(prop) {
   if (!SpecialPowers.getBoolPref("layout.css.filters.enabled")) {
     return;
   }
   for (var i in filterTests) {
     var test = filterTests[i];
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, test.start, "");
     cs.getPropertyValue(prop);
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, test.end, "");
     var actual = cs.getPropertyValue(prop);
     ok(filter_function_list_equals(actual, test.expected),
                                    "Filter property is " + actual + " expected values of " +
                                    test.expected);
   }
 }
 function test_shadow_transition(prop) {
   var spreadStr = (prop == "box-shadow") ? " 0px" : "";
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "none", "");
   is(cs.getPropertyValue(prop), "none",
      "shadow-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "4px 8px 3px red", "");
   is(cs.getPropertyValue(prop), "rgba(255, 0, 0, 0.25) 1px 2px 0.75px" + spreadStr,
      "shadow-valued property " + prop + ": interpolation of shadows");
   check_distance(prop, "none", "rgba(255, 0, 0, 0.25) 1px 2px 0.75px",
                        "4px 8px 3px red");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "#038000 4px 4px, 2px 2px blue", "");
   is(cs.getPropertyValue(prop), "rgb(3, 128, 0) 4px 4px 0px" + spreadStr + ", rgb(0, 0, 255) 2px 2px 0px" + spreadStr,
      "shadow-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "8px 8px 8px red", "");
   is(cs.getPropertyValue(prop), "rgb(66, 96, 0) 5px 5px 2px" + spreadStr + ", rgba(0, 0, 255, 0.75) 1.5px 1.5px 0px" + spreadStr,
      "shadow-valued property " + prop + ": interpolation of shadows");
   check_distance(prop, "#038000 4px 4px, 2px 2px blue",
                        "rgb(66, 96, 0) 5px 5px 2px, rgba(0, 0, 255, 0.75) 1.5px 1.5px 0px",
                        "8px 8px 8px red");
   if (prop == "box-shadow") {
     div.style.setProperty(prop, "8px 8px 8px red inset", "");
     is(cs.getPropertyValue(prop), "rgb(255, 0, 0) 8px 8px 8px 0px inset",
        "shadow-valued property " + prop + ": non-interpolable cases");
     div.style.setProperty(prop, "8px 8px 8px 8px red inset", "");
     is(cs.getPropertyValue(prop), "rgb(255, 0, 0) 8px 8px 8px 2px inset",
        "shadow-valued property " + prop + ": interpolation of spread");
     // Leave in same state whether in the |if| or not.
     div.style.setProperty(prop, "8px 8px 8px red", "");
     is(cs.getPropertyValue(prop), "rgb(255, 0, 0) 8px 8px 8px 0px",
        "shadow-valued property " + prop + ": non-interpolable cases");
     check_distance(prop, "8px 8px 8px red inset",
                          "rgb(255, 0, 0) 8px 8px 8px 2px inset",
                          "8px 8px 8px 8px red inset");
   }
   var defaultColor = cs.getPropertyValue("color") + " ";
   div.style.setProperty(prop, "2px 2px 2px", "");
   is(cs.getPropertyValue(prop), defaultColor + "2px 2px 2px" + spreadStr,
      "shadow-valued property " + prop + ": non-interpolable cases");
   div.style.setProperty(prop, "6px 14px 10px", "");
   is(cs.getPropertyValue(prop), defaultColor + "3px 5px 4px" + spreadStr,
      "shadow-valued property " + prop + ": interpolation without color");
   check_distance(prop, "2px 2px 2px", "3px 5px 4px", "6px 14px 10px");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0px 0px 0px black", "");
   is(cs.getPropertyValue(prop), "rgb(0, 0, 0) 0px 0px 0px" + spreadStr,
      "shadow-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "10px 10px 10px black", "");
   var vals = cs.getPropertyValue(prop).split(" ");
   is(vals.length, 6 + (prop == "box-shadow"), "unexpected number of values");
   is(vals.slice(0, 3).join(" "), "rgb(0, 0, 0)",
      "shadow-valued property " + prop + " (color): clamping of negatives");
   isnot(vals[3], "0px",
         "shadow-valued property " + prop + " (x): clamping of negatives");
   isnot(vals[4], "0px",
         "shadow-valued property " + prop + " (y): clamping of negatives");
   is(vals[5], "0px",
      "shadow-valued property " + prop + " (radius): clamping of negatives");
   if (prop == "box-shadow") {
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, "0px 0px 0px 0px black", "");
     is(cs.getPropertyValue(prop), "rgb(0, 0, 0) 0px 0px 0px 0px",
        "shadow-valued property " + prop + ": flush before clamping test");
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, "10px 10px 10px 10px black", "");
     var vals = cs.getPropertyValue(prop).split(" ");
     is(vals.length, 7, "unexpected number of values");
     is(vals.slice(0, 3).join(" "), "rgb(0, 0, 0)",
        "shadow-valued property " + prop + " (color): clamping of negatives");
     isnot(vals[3], "0px",
           "shadow-valued property " + prop + " (x): clamping of negatives");
     isnot(vals[4], "0px",
           "shadow-valued property " + prop + " (y): clamping of negatives");
     is(vals[5], "0px",
        "shadow-valued property " + prop + " (radius): clamping of negatives");
     isnot(vals[6], "0px",
           "shadow-valued property " + prop + " (spread): clamping of negatives");
   }
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_dasharray_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "3", "");
   is(cs.getPropertyValue(prop), "3",
      "dasharray-valued property " + prop +
      ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "15px", "");
   is(cs.getPropertyValue(prop), "6",
      "dasharray-valued property " + prop + ": interpolation of dasharray");
   check_distance(prop, "3", "6", "15px");
   div.style.setProperty(prop, "none", "");
   is(cs.getPropertyValue(prop), "none",
      "dasharray-valued property " + prop + ": non-interpolability of none");
   div.style.setProperty(prop, "6,8px,4,4", "");
   is(cs.getPropertyValue(prop), "6, 8px, 4, 4",
      "dasharray-valued property " + prop +
      ": computed value before transition");
   div.style.setProperty(prop, "14, 12,16,16px", "");
   is(cs.getPropertyValue(prop), "8, 9, 7, 7",
      "dasharray-valued property " + prop + ": interpolation of dasharray");
   check_distance(prop, "6,8px,4,4", "8,9,7,7", "14, 12,16,16px");
   div.style.setProperty(prop, "none", "");
   is(cs.getPropertyValue(prop), "none",
      "dasharray-valued property " + prop + ": non-interpolability of none");
   div.style.setProperty(prop, "8,16,4", "");
   is(cs.getPropertyValue(prop), "8, 16, 4",
      "dasharray-valued property " + prop +
      ": computed value before transition");
   div.style.setProperty(prop, "4,8,12,16", "");
   is(cs.getPropertyValue(prop), "7, 14, 6, 10, 13, 5, 9, 16, 4, 8, 15, 7",
      "dasharray-valued property " + prop + ": interpolation of dasharray");
   check_distance(prop, "8,16,4", "7, 14, 6, 10, 13, 5, 9, 16, 4, 8, 15, 7",
                        "4,8,12,16");
   div.style.setProperty(prop, "2,50%,6,10", "");
   is(cs.getPropertyValue(prop), "2, 50%, 6, 10",
      "dasharray-valued property " + prop + ": non-interpolability of mixed units");
   div.style.setProperty(prop, "6,30%,2,2", "");
   is(cs.getPropertyValue(prop), "3, 45%, 5, 8",
      "dasharray-valued property " + prop + ": interpolation of dasharray");
   check_distance(prop, "2,50%,6,10", "3, 45%, 5, 8", "6,30%,2,2");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0,0%", "");
   is(cs.getPropertyValue(prop), "0, 0%",
      "dasharray-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "5, 25%", "");
   is(cs.getPropertyValue(prop), "0, 0%",
      "dasharray-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_radius_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   // FIXME: Test a square for now, since we haven't updated to the spec
   // for vertical components being relative to the height.
   // Note: We use powers of two here so the floating-point math comes out
   // nicely.
   div.style.setProperty("width", "256px", "");
   div.style.setProperty("height", "256px", "");
   div.style.setProperty("border", "none", "");
   div.style.setProperty("padding", "0", "");
   div.style.setProperty(prop, "3px", "");
   is(cs.getPropertyValue(prop), "3px",
      "radius-valued property " + prop +
      ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "15px", "");
   is(cs.getPropertyValue(prop), "6px",
      "radius-valued property " + prop + ": interpolation of radius");
   check_distance(prop, "3px", "6px", "15px");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "12.5%", "");
   is(cs.getPropertyValue(prop), "32px",
      "radius-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "25%", "");
   is(cs.getPropertyValue(prop), "40px",
      "radius-valued property " + prop + ": interpolation of radius");
   check_distance(prop, "12.5%", "15.625%", "25%");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "3px 8px", "");
   is(cs.getPropertyValue(prop), "3px 8px",
      "radius-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "15px 12px", "");
   is(cs.getPropertyValue(prop), "6px 9px",
      "radius-valued property " + prop + ": interpolation of radius");
   check_distance(prop, "3px 8px", "6px 9px", "15px 12px");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "12.5% 6.25%", "");
   is(cs.getPropertyValue(prop), "32px 16px",
      "radius-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "25%", "");
   is(cs.getPropertyValue(prop), "40px 28px",
      "radius-valued property " + prop + ": interpolation of radius");
   check_distance(prop, "12.5% 6.25%", "15.625% 10.9375%", "25%");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "6.25% 12.5%", "");
   is(cs.getPropertyValue(prop), "16px 32px",
      "radius-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "64px 16px", "");
   is(cs.getPropertyValue(prop), "28px",
      "radius-valued property " + prop + ": interpolation of radius with mixed units");
   check_distance(prop, "6.25% 12.5%",
                  "calc(4.6875% + 16px) calc(9.375% + 4px)",
                  "64px 16px");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "calc(5px) 10px", "");
   is(cs.getPropertyValue(prop), "5px 10px",
      "radius-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "calc(25px) calc(50px)", "");
   is(cs.getPropertyValue(prop), "10px 20px",
      "radius-valued property " + prop + ": interpolation of radius with calc() units");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0px 0px", "");
   is(cs.getPropertyValue(prop), "0px",
      "radius-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "10px 20px", "");
   is(cs.getPropertyValue(prop), "0px",
      "radius-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
   test_length_percent_calc_transition(prop);
   div.style.removeProperty("width");
   div.style.removeProperty("height");
   div.style.removeProperty("border");
   div.style.removeProperty("padding");
 }
 function test_integer_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "4", "");
   is(cs.getPropertyValue(prop), "4",
      "integer-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "-14", "");
   is(cs.getPropertyValue(prop), "-1",
      "integer-valued property " + prop + ": interpolation of integers");
   check_distance(prop, "6", "1", "-14");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "-4", "");
   is(cs.getPropertyValue(prop), "-4",
      "integer-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "8", "");
   is(cs.getPropertyValue(prop), "-1",
      "integer-valued property " + prop + ": interpolation of integers");
   check_distance(prop, "-4", "-1", "8");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0", "");
   is(cs.getPropertyValue(prop), "0",
      "integer-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "100", "");
   isnot(cs.getPropertyValue(prop), "0",
         "integer-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_font_stretch(prop) {
   is(prop, "font-stretch", "only designed for one property");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "normal", "");
   is(cs.getPropertyValue(prop), "normal",
      "font-stretch property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "ultra-expanded", "");
   is(cs.getPropertyValue(prop), "semi-expanded",
      "font-stretch property " + prop + ": interpolation of font-stretches");
   check_distance(prop, "normal", "semi-expanded", "ultra-expanded");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "expanded", "");
   is(cs.getPropertyValue(prop), "expanded",
      "font-stretch property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "extra-condensed", "");
   is(cs.getPropertyValue(prop), "normal",
      "font-stretch property " + prop + ": interpolation of font-stretches");
   check_distance(prop, "expanded", "semi-expanded", "condensed");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "ultra-condensed", "");
   is(cs.getPropertyValue(prop), "ultra-condensed",
      "font-stretch property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "ultra-expanded", "");
   is(cs.getPropertyValue(prop), "ultra-condensed",
      "font-stretch property " + prop + ": clamping of values");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "ultra-expanded", "");
   is(cs.getPropertyValue(prop), "ultra-expanded",
      "font-stretch property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "ultra-condensed", "");
   is(cs.getPropertyValue(prop), "ultra-expanded",
      "font-stretch property " + prop + ": clamping of values");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_font_weight(prop) {
   is(prop, "font-weight", "only designed for one property");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "normal", "");
   is(cs.getPropertyValue(prop), "400",
      "font-weight property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "900", "");
   is(cs.getPropertyValue(prop), "500",
      "font-weight property " + prop + ": interpolation of font-weights");
   check_distance(prop, "400", "500", "800");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "900", "");
   is(cs.getPropertyValue(prop), "900",
      "font-weight property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "100", "");
   is(cs.getPropertyValue(prop), "700",
      "font-weight property " + prop + ": interpolation of font-weights");
   check_distance(prop, "900", "700", "100");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "100", "");
   is(cs.getPropertyValue(prop), "100",
      "font-weight property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "900", "");
   is(cs.getPropertyValue(prop), "100",
      "font-weight property " + prop + ": clamping of values");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "900", "");
   is(cs.getPropertyValue(prop), "900",
      "font-weight property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "100", "");
   is(cs.getPropertyValue(prop), "900",
      "font-weight property " + prop + ": clamping of values");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_pos_integer_or_auto_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "4", "");
   is(cs.getPropertyValue(prop), "4",
      "integer-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "11", "");
   is(cs.getPropertyValue(prop), "5",
      "integer-valued property " + prop + ": interpolation of integers");
   check_distance(prop, "4", "6", "12");
   div.style.setProperty(prop, "auto", "");
   is(cs.getPropertyValue(prop), "auto",
      "integer-valued property " + prop + ": auto not interpolable");
   div.style.setProperty(prop, "8", "");
   is(cs.getPropertyValue(prop), "8",
      "integer-valued property " + prop + ": computed value before transition");
   div.style.setProperty(prop, "4", "");
   is(cs.getPropertyValue(prop), "7",
      "integer-valued property " + prop + ": interpolation of integers");
   check_distance(prop, "8", "7", "4");
 }
 function test_integer_at_least_one_clamping(prop) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "1", "");
   is(cs.getPropertyValue(prop), "1",
      "integer-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "5", "");
   is(cs.getPropertyValue(prop), "1",
      "integer-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_length_pair_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "4px 6px", "");
   is(cs.getPropertyValue(prop), "4px 6px",
      "length-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "12px 10px", "");
   is(cs.getPropertyValue(prop), "6px 7px",
      "length-valued property " + prop + ": interpolation of lengths");
   check_distance(prop, "4px 6px", "6px 7px", "12px 10px");
 }
 function test_length_pair_transition_clamped(prop) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0px 0px", "");
   is(cs.getPropertyValue(prop), "0px 0px",
      "length-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "30px 50px", "");
   is(cs.getPropertyValue(prop), "0px 0px",
      "length-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_length_percent_pair_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "4px 50%", "");
   is(cs.getPropertyValue(prop), "4px 5px",
      "length-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "12px 70%", "");
   is(cs.getPropertyValue(prop), "6px 5.5px",
      "length-valued property " + prop + ": interpolation of lengths");
   check_distance(prop, "4px 50%", "6px 55%", "12px 70%");
 }
 function test_length_percent_pair_clamped(prop) {
   test_length_percent_pair_clamped_or_unclamped(prop, true);
 }
 function test_length_percent_pair_unclamped(prop) {
   test_length_percent_pair_clamped_or_unclamped(prop, false);
 }
 function test_length_percent_pair_clamped_or_unclamped(prop, is_clamped) {
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0px 0%", "");
   is(cs.getPropertyValue(prop), "0px 0px",
      "length+percent-valued property " + prop + ": flush before clamping test");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "30px 25%", "");
   (is_clamped ? is : isnot)(cs.getPropertyValue(prop), "0px 0px",
      "length+percent-valued property " + prop + ": clamping of negatives");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_rect_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rect(4px, 16px, 12px, 6px)", "");
   is(cs.getPropertyValue(prop), "rect(4px, 16px, 12px, 6px)",
      "rect-valued property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "rect(0px, 4px, 4px, 2px)", "");
   is(cs.getPropertyValue(prop), "rect(3px, 13px, 10px, 5px)",
      "rect-valued property " + prop + ": interpolation of rects");
   check_distance(prop, "rect(4px, 16px, 12px, 6px)",
                        "rect(3px, 13px, 10px, 5px)",
                        "rect(0px, 4px, 4px, 2px)");
   if (prop == "clip") {
     div.style.setProperty(prop, "rect(0px, 6px, 4px, auto)", "");
     is(cs.getPropertyValue(prop), "rect(0px, 6px, 4px, auto)",
        "rect-valued property " + prop + ": can't interpolate auto components");
     div.style.setProperty(prop, "rect(0px, 6px, 4px, 2px)", "");
   }
   div.style.setProperty(prop, "auto", "");
   is(cs.getPropertyValue(prop), "auto",
      "rect-valued property " + prop + ": can't interpolate auto components");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "rect(-10px, 30px, 0px, 0px)", "");
   var vals = cs.getPropertyValue(prop).match(/rect\(([^, ]*), ([^, ]*), ([^, ]*), ([^, ]*)\)/);
   is(vals.length, 5,
      "rect-valued property " + prop + ": flush before clamping test (length)");
   is(vals[1], "-10px",
      "rect-valued property " + prop + ": flush before clamping test (top)");
   is(vals[2], "30px",
      "rect-valued property " + prop + ": flush before clamping test (right)");
   is(vals[3], "0px",
      "rect-valued property " + prop + ": flush before clamping test (bottom)");
   is(vals[4], "0px",
      "rect-valued property " + prop + ": flush before clamping test (left)");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "rect(0px, 40px, 10px, 10px)", "");
   vals = cs.getPropertyValue(prop).match(/rect\(([^, ]*), ([^, ]*), ([^, ]*), ([^, ]*)\)/);
   is(vals.length, 5,
      "rect-valued property " + prop + ": clamping of negatives (length)");
   isnot(vals[1], "-10px",
      "rect-valued property " + prop + ": clamping of negatives (top)");
   isnot(vals[2], "30px",
      "rect-valued property " + prop + ": clamping of negatives (right)");
   isnot(vals[3], "0px",
      "rect-valued property " + prop + ": clamping of negatives (bottom)");
   isnot(vals[4], "0px",
      "rect-valued property " + prop + ": clamping of negatives (left)");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_visibility_transition(prop) {
   function do_test(from_value, to_value, interp_value) {
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, from_value, "");
     is(cs.getPropertyValue(prop), from_value,
        "visibility property " + prop + ": computed value before transition");
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, to_value, "");
     is(cs.getPropertyValue(prop), interp_value,
        "visibility property " + prop + ": interpolation of visibility");
   }
   do_test("visible", "hidden", "visible");
   do_test("hidden", "visible", "visible");
   do_test("hidden", "collapse", "collapse"); /* not interpolable */
   do_test("collapse", "hidden", "hidden"); /* not interpolable */
   do_test("visible", "collapse", "visible");
   do_test("collapse", "visible", "visible");
   isnot(get_distance(prop, "visible", "hidden"), 0,
         "distance between visible and hidden should not be zero");
   isnot(get_distance(prop, "visible", "collapse"), 0,
         "distance between visible and collapse should not be zero");
   is(get_distance(prop, "visible", "visible"), 0,
      "distance between visible and visible should not be zero");
   is(get_distance(prop, "hidden", "hidden"), 0,
      "distance between hidden and hidden should not be zero");
   is(get_distance(prop, "collapse", "collapse"), 0,
      "distance between collapse and collapse should not be zero");
   div.style.setProperty("transition-timing-function", FUNC_NEGATIVE, "");
   function do_negative_test(from_value, to_value, interpolable) {
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, from_value, "");
     is(cs.getPropertyValue(prop), from_value,
        "visibility property " + prop + ": flush before clamping test");
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, to_value, "");
     is(cs.getPropertyValue(prop), interpolable ? from_value : to_value,
        "visibility property " + prop + ": clamping of negatives");
   }
   do_negative_test("visible", "hidden", true);
   do_negative_test("hidden", "visible", true);
   do_negative_test("hidden", "collapse", false);
   do_negative_test("collapse", "hidden", false);
   do_negative_test("visible", "collapse", true);
   do_negative_test("collapse", "visible", true);
   div.style.setProperty("transition-delay", "-3s", "");
   div.style.setProperty("transition-timing-function", FUNC_OVERONE, "");
   function do_overone_test(from_value, to_value) {
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, from_value, "");
     is(cs.getPropertyValue(prop), from_value,
        "visibility property " + prop + ": flush before clamping test");
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, to_value, "");
     is(cs.getPropertyValue(prop), to_value,
        "visibility property " + prop + ": clamping of over-ones");
   }
   do_overone_test("visible", "hidden");
   do_overone_test("hidden", "visible");
   do_overone_test("hidden", "collapse");
   do_overone_test("collapse", "hidden");
   do_overone_test("visible", "collapse");
   do_overone_test("collapse", "visible");
   div.style.setProperty("transition-delay", "-1s", "");
   div.style.setProperty("transition-timing-function", "linear", "");
 }
 function test_background_size_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "50% 80%", "");
   is(cs.getPropertyValue(prop), "50% 80%",
      "property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "100% 100%", "");
   is(cs.getPropertyValue(prop), "62.5% 85%",
      "property " + prop + ": interpolation of percents");
   check_distance(prop, "50% 80%", "62.5% 85%", "100% 100%");
   div.style.setProperty(prop, "contain", "");
   is(cs.getPropertyValue(prop), "contain",
      "property " + prop + ": can't interpolate 'contain'");
   test_background_position_size_common(prop);
 }
 function test_background_position_transition(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "center 80%", "");
   is(cs.getPropertyValue(prop), "50% 80%",
      "property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "bottom right", "");
   is(cs.getPropertyValue(prop), "62.5% 85%",
      "property " + prop + ": interpolation of percents");
   check_distance(prop, "center 80%", "62.5% 85%", "bottom right");
   test_background_position_size_common(prop);
 }
 function test_background_position_size_common(prop) {
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "40% 0%", "");
   is(cs.getPropertyValue(prop), "40% 0%",
      "property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "0% 0%", "");
   is(cs.getPropertyValue(prop), "30% 0%",
      "property " + prop + ": interpolation of percentages");
   check_distance(prop, "40% 0%", "30% 0%", "0% 0%");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "0% 40%", "");
   is(cs.getPropertyValue(prop), "0% 40%",
      "property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "0% 0%", "");
   is(cs.getPropertyValue(prop), "0% 30%",
      "property " + prop + ": interpolation of percentages");
   check_distance(prop, "0% 40%", "0% 30%", "0% 0%");
   div.style.setProperty("transition-property", "none", "");
   div.style.setProperty(prop, "10px 40px", "");
   is(cs.getPropertyValue(prop), "10px 40px",
      "property " + prop + ": computed value before transition");
   div.style.setProperty("transition-property", prop, "");
   div.style.setProperty(prop, "50px 0", "");
   is(cs.getPropertyValue(prop), "20px 30px",
      "property " + prop + ": interpolation of lengths");
   check_distance(prop, "10px 40px", "20px 30px", "50px 0");
   div.style.setProperty(prop, "10px 40px, 50px 50px, 30px 20px", "");
   is(cs.getPropertyValue(prop), "10px 40px, 50px 50px, 30px 20px",
      "property " + prop + ": computed value before transition");
   div.style.setProperty(prop, "50px 20px, 70px 50px, 30px 40px", "");
   is(cs.getPropertyValue(prop), "20px 35px, 55px 50px, 30px 25px",
      "property " + prop + ": interpolation of lists of lengths");
   check_distance(prop, "10px 40px, 50px 50px, 30px 20px",
                        "20px 35px, 55px 50px, 30px 25px",
                        "50px 20px, 70px 50px, 30px 40px");
   div.style.setProperty(prop, "10px 40%, 50% 50px, 30% 20%, 5px 10px", "");
   is(cs.getPropertyValue(prop), "10px 40%, 50% 50px, 30% 20%, 5px 10px",
      "property " + prop + ": computed value before transition");
   div.style.setProperty(prop, "50px 20%, 70% 50px, 30% 40%, 25px 50px", "");
   is(cs.getPropertyValue(prop), "20px 35%, 55% 50px, 30% 25%, 10px 20px",
      "property " + prop + ": interpolation of lists of lengths and percents");
   check_distance(prop, "10px 40%, 50% 50px, 30% 20%, 5px 10px",
                        "20px 35%, 55% 50px, 30% 25%, 10px 20px",
                        "50px 20%, 70% 50px, 30% 40%, 25px 50px");
   div.style.setProperty(prop, "20% 40%, 8px 12px", "");
   is(cs.getPropertyValue(prop), "20% 40%, 8px 12px",
      "property " + prop + ": computed value before transition");
   div.style.setProperty(prop, "12px 20px, 40% 16%", "");
   is(cs.getPropertyValue(prop), "calc(3px + 15%) calc(5px + 30%), calc(6px + 10%) calc(9px + 4%)",
      "property " + prop + ": interpolation that computes to calc()");
   check_distance(prop, "20% 40%, 8px 12px",
                        "calc(3px + 15%) calc(5px + 30%), calc(6px + 10%) calc(9px + 4%)",
                        "12px 20px, 40% 16%");
   div.style.setProperty(prop, "calc(20% + 40px) calc(40px + 40%), 8px 12%, calc(20px + 12%) calc(24px + 8%)", "");
   is(cs.getPropertyValue(prop), "calc(40px + 20%) calc(40px + 40%), 8px 12%, calc(20px + 12%) calc(24px + 8%)",
      "property " + prop + ": computed value before transition");
   div.style.setProperty(prop, "12px 20%, calc(20%) calc(16px + 60%), calc(8px + 20%) calc(40px + 16%)", "");
   is(cs.getPropertyValue(prop), "calc(33px + 15%) calc(30px + 35%), calc(6px + 5%) calc(4px + 24%), calc(17px + 14%) calc(28px + 10%)",
      "property " + prop + ": interpolation that computes to calc()");
   check_distance(prop, "calc(20% + 40px) calc(40px + 40%), 8px 12%, calc(20px + 12%) calc(24px + 8%)",
                        "calc(33px + 15%) calc(30px + 35%), calc(6px + 5%) calc(4px + 24%), calc(17px + 14%) calc(28px + 10%)",
                        "12px 20%, calc(20%) calc(16px + 60%), calc(8px + 20%) calc(40px + 16%)");
 }
 function test_transform_transition(prop) {
   is(prop, "transform", "Unexpected transform property!  Test needs to be fixed");
   var matrix_re = /^matrix\(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*)\)$/;
   for (var i in transformTests) {
     var test = transformTests[i];
     if (!("expected" in test)) {
       var v = test.expected_uncomputed;
       if (v.match(matrix_re) && !test.force_compute) {
         test.expected = v;
       } else {
         test.expected = computeMatrix(v);
       }
     }
   }
   for (var i in transformTests) {
     var test = transformTests[i];
     div.style.setProperty("transition-property", "none", "");
     div.style.setProperty(prop, test.start, "");
     cs.getPropertyValue(prop);
     div.style.setProperty("transition-property", prop, "");
     div.style.setProperty(prop, test.end, "");
     var actual = cs.getPropertyValue(prop);
     if (!test.round_error_ok || actual == test.expected) {
       // In most cases, we'll get an exact match, but in some cases
       // there can be a small amount of rounding error.
       is(actual, test.expected,
          "interpolation of transitions: " + test.start + " to " + test.end);
     } else {
       function s(mat) {
         return mat.match(matrix_re).slice(1,7);
       }
       var pass = true;
       var actual_split = s(actual);
       var expected_split = s(test.expected);
       for (var i = 0; i < 6; ++i) {
         // Allow differences of 1 at the sixth decimal place, and allow
         // a drop extra for floating point error from the subtraction.
         if (Math.abs(Number(actual_split[i]) - Number(expected_split[i])) >
 .0000011) {
           pass = false;
         }
       }
       ok(pass,
          "interpolation of transitions: " + test.start + " to " + test.end +
          ": " + actual + " should approximately equal " + test.expected);
     }
   }
   // FIXME: should perhaps test that no clamping occurs
   // These tests check the computed value 2/3 of the way through the transition
   OMTAdiv.style.setProperty("transition-duration", "300s", "");
   OMTAdiv.style.setProperty("transition-timing-function", "linear", "");
   window.requestAnimationFrame(nextAsyncTransformTest);
 }
 function nextAsyncTransformTest()
 {
   var test = transformTests[transformTestIndex];
   if (transformTestIndex >= transformTests.length) {
     window.requestAnimationFrame(asyncOpacityTest);
     return;
   }
   OMTAdiv.style.setProperty("transition-property", "none", "");
   OMTAdiv.style.setProperty("transform", test.start, "");
   OMTACs.getPropertyValue("transform");
   OMTAdiv.style.setProperty("transition-property", "transform", "");
   OMTAdiv.style.setProperty("transform", test.end, "");
   OMTACs.getPropertyValue("transform");
   window.requestAnimationFrame(checkAsyncTransformTest);
 }
 function checkAsyncTransformTest() {
   function s(matrix) {
     return matrix.replace(/^\w*\(/, '').replace(')','').split(/\s*,\s*/);
   }
   winUtils.advanceTimeAndRefresh(200000);
   var test = transformTests[transformTestIndex];
   var async_transform = winUtils.getOMTAOrComputedStyle(OMTAdiv, "transform");
   var computed_transform = OMTACs.getPropertyValue("transform");
   var async_split = s(async_transform);
   var cs_split = s(computed_transform);
   var pass = true;
   for (var j = 0; j < 16; ++j) {
     var epsilon = test.big_omta_round_error ? 0.1 : 0.0001;
     if (Math.abs(Number(async_split[j]) - Number(cs_split[j])) > epsilon) {
       pass = false;
     }
   }
   ok(pass,
      "interpolation of transitions: " + test.start + " to " + test.end +
      ": OMTA - " + async_transform + ", computed style - " + computed_transform);
   transformTestIndex++;
   winUtils.restoreNormalRefresh();
   window.requestAnimationFrame(nextAsyncTransformTest);
 }
 function asyncOpacityTest() {
   OMTAdiv.style.setProperty("transition-property", "none", "");
   OMTAdiv.style.setProperty("opacity", 0, "");
   OMTACs.getPropertyValue("opacity");
   OMTAdiv.style.setProperty("transition-property", "opacity", "");
   OMTAdiv.style.setProperty("opacity", 1, "");
   OMTACs.getPropertyValue("opacity");
   window.requestAnimationFrame(checkAsyncOpacityTest);
 }
 function checkAsyncOpacityTest() {
   winUtils.advanceTimeAndRefresh(200000);
   var async_opacity = winUtils.getOMTAOrComputedStyle(OMTAdiv, "opacity");
   var computed_opacity = OMTACs.getPropertyValue("opacity");
   is(async_opacity, computed_opacity,
      "Async animated opacity should match computed opacity");
   winUtils.restoreNormalRefresh();
   OMTAdiv.style.removeProperty("transition");
   SimpleTest.finish();
 }
 </script>
 </pre>
 </body>
 </html>

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layout/style/test/test_transitions_per_property.html@8bccb770b82d (annotated)

layout/style/test/test_transitions_per_property.html