The Tor Browser: layout/style/test/test_font_feature_values

layout/style/test/test_font_feature_values_parsing.html@141e0f1194b1 (annotated)

layout/style/test/test_font_feature_values_parsing.html

Wed, 31 Dec 2014 07:16:47 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:16:47 +0100
branch: TOR_BUG_9701
changeset 3: 141e0f1194b1
permissions: -rw-r--r--

Revert simplistic fix pending revisit of Mozilla integration attempt.

 <!DOCTYPE HTML>
 <html>
 <head>
   <meta charset=utf-8>
   <title>@font-feature-values rule parsing tests</title>
   <link rel="author" title="John Daggett" href="mailto:jdaggett@mozilla.com">
   <link rel="help" href="http://www.w3.org/TR/css3-fonts/#font-feature-values" />
   <meta name="assert" content="tests that valid @font-feature-values rules parse and invalid ones don't" />
   <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=549861 -->
   <script type="text/javascript" src="/resources/testharness.js"></script>
   <script type="text/javascript" src="/resources/testharnessreport.js"></script>
   <style type="text/css">
   </style>
 </head>
 <body>
 <div id="log"></div>
 <pre id="display"></pre>
 <style type="text/css" id="testbox"></style>
 <script type="text/javascript">
 var gPrefix = "";
 var kFontFeatureValuesRuleType = 14;
 function ruleName() { return "@" + gPrefix + "font-feature-values"; }
 function makeRule(f, v) {
   return ruleName() + " " + f + " { " + v + " }";
 }
 function _()
 {
   var i, decl = [];
   for (i = 0; i < arguments.length; i++) {
     decl.push(arguments[i]);
   }
   return makeRule("bongo", decl.join(" "));
 }
 // note: because of bugs in the way family names are serialized,
 // 'serializationSame' only implies that the value definition block
 // is the same (i.e. not including the family name list)
 var testrules = [
   /* basic syntax */
   { rule: ruleName() + ";", invalid: true },
   { rule: ruleName() + " bongo;", invalid: true },
   { rule: ruleName().replace("values", "value") + " {;}", invalid: true },
   { rule: ruleName().replace("feature", "features") + " {;}", invalid: true },
   { rule: makeRule("bongo", ""), serializationNoValueDefn: true },
   { rule: makeRule("bongo", ";"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", ",;"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", ";,"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", ",;,"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset;"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset,;"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset abc;"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { ;;abc }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc;; }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc: }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc,: }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc:, }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc:,; }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { a,b }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { a;b }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { a:;b: }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { a:,;b: }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { a:1,;b: }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc 1 2 3 }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc:, 1 2 3 }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc:; 1 2 3 }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc:; 1 2 3 }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc: 1 2 3a }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@styleset { abc: 1 2 3, def: 1; }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@blah @styleset { abc: 1 2 3; }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@blah } @styleset { abc: 1 2 3; }"), serializationNoValueDefn: true },
   { rule: makeRule("bongo", "@blah , @styleset { abc: 1 2 3; }"), serializationNoValueDefn: true },
   { rule: ruleName() + " bongo { @styleset { abc: 1 2 3; }", serialization: _("@styleset { abc: 1 2 3; }") },
   { rule: ruleName() + " bongo { @styleset { abc: 1 2 3 }", serialization: _("@styleset { abc: 1 2 3; }") },
   { rule: ruleName() + " bongo { @styleset { abc: 1 2 3;", serialization: _("@styleset { abc: 1 2 3; }") },
   { rule: ruleName() + " bongo { @styleset { abc: 1 2 3", serialization: _("@styleset { abc: 1 2 3; }") },
   { rule: _("@styleset { ok-1: 1; }"), serializationSame: true },
   { rule: _("@annotation { ok-1: 3; }"), serializationSame: true },
   { rule: _("@stylistic { blah: 3; }"), serializationSame: true },
   { rule: makeRule("bongo", "\n@styleset\n  { blah: 3; super-blah: 4 5;\n  more-blah: 5 6 7;\n }"), serializationSame: true },
   { rule: makeRule("bongo", "\n@styleset\n  {\n blah:\n 3\n;\n super-blah:\n 4\n 5\n;\n  more-blah:\n 5 6\n 7;\n }"), serializationSame: true },
   /* limits on number of values */
   { rule: _("@stylistic { blah: 1; }"), serializationSame: true },
   { rule: _("@styleset { blah: 1 2 3 4; }"), serializationSame: true },
   { rule: _("@character-variant { blah: 1 2; }"), serializationSame: true },
   { rule: _("@swash { blah: 1; }"), serializationSame: true },
   { rule: _("@ornaments { blah: 1; }"), serializationSame: true },
   { rule: _("@annotation { blah: 1; }"), serializationSame: true },
   /* values ignored when used */
   { rule: _("@styleset { blah: 0; }"), serializationSame: true },
   { rule: _("@styleset { blah: 120 124; }"), serializationSame: true },
   { rule: _("@character-variant { blah: 0; }"), serializationSame: true },
   { rule: _("@character-variant { blah: 111; }"), serializationSame: true },
   { rule: _("@character-variant { blah: 111 13; }"), serializationSame: true },
   /* invalid value name */
   { rulesrc: ["styleset { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["stylistic { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["character-variant { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["swash { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["ornaments { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["annotation { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["@bongo { blah: 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["@bongo { blah: 1 2 3 }"], serializationNoValueDefn: true },
   { rulesrc: ["@bongo { blah: 1 2 3; burp: 1;;; }"], serializationNoValueDefn: true },
   /* values */
   { rulesrc: ["@styleset { blah: -1 }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1 -1 }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1.5 }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 15px }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: red }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: (1) }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah:(1) }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah:, 1 }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: <1> }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1! }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1,, }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1 1 1 1; }"], serializationSame: true },
   /* limits on number of values */
   { rulesrc: ["@stylistic { blah: 1 2 }"], serializationNoValueDefn: true },
   { rulesrc: ["@character-variant { blah: 1 2 3 }"], serializationNoValueDefn: true },
   { rulesrc: ["@swash { blah: 1 2 }"], serializationNoValueDefn: true },
   { rulesrc: ["@ornaments { blah: 1 2 }"], serializationNoValueDefn: true },
   { rulesrc: ["@annotation { blah: 1 2 }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { blah: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19; }"], serializationSame: true },
   /* family names */
   { rule: makeRule("bongo", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("\"bongo\"", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("'bongo'", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("\\62 ongo", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("bongo, super bongo, bongo the supreme", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("bongo,, super bongo", "@styleset { blah: 1; }"), invalid: true },
   { rule: makeRule("bongo,*", "@styleset { blah: 1; }"), invalid: true },
   { rule: makeRule("bongo, sans-serif", "@styleset { blah: 1; }"), invalid: true },
   { rule: makeRule("serif, sans-serif", "@styleset { blah: 1; }"), invalid: true },
   { rule: makeRule("'serif', 'sans-serif'", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("bongo, \"super bongo\", 'bongo the supreme'", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("毎日カレーを食べたい！", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("毎日カレーを食べたい！, 納豆嫌い", "@styleset { blah: 1; }"), serializationSame: true },
   { rule: makeRule("bongo, \"super\" bongo, bongo the supreme", "@styleset { blah: 1; }"), invalid: true },
   { rule: makeRule("--bongo", "@styleset { blah: 1; }"), invalid: true },
   /* ident tests */
   { rule: _("@styleset { blah: 1; blah: 1; }"), serializationSame: true },
   { rule: _("@styleset { blah: 1; de-blah: 1; blah: 2; }"), serializationSame: true },
   { rule: _("@styleset { \\tra-la: 1; }"), serialization: _("@styleset { tra-la: 1; }") },
   { rule: _("@styleset { b\\lah: 1; }"), serialization: _("@styleset { blah: 1; }") },
   { rule: _("@styleset { \\62 lah: 1; }"), serialization: _("@styleset { blah: 1; }") },
   { rule: _("@styleset { \\:blah: 1; }"), serialization: _("@styleset { \\:blah: 1; }") },
   { rule: _("@styleset { \\;blah: 1; }"), serialization: _("@styleset { \\;blah: 1; }") },
   { rule: _("@styleset { complex\\20 blah: 1; }"), serialization: _("@styleset { complex\\ blah: 1; }") },
   { rule: _("@styleset { complex\\ blah: 1; }"), serializationSame: true },
   { rule: _("@styleset { Håkon: 1; }"), serializationSame: true },
   { rule: _("@styleset { Åквариум: 1; }"), serializationSame: true },
   { rule: _("@styleset { \\1f449\\1f4a9\\1f448: 1; }"), serialization: _("@styleset { 👉💩👈: 1; }") },
   { rule: _("@styleset { 魅力: 1; }"), serializationSame: true },
   { rule: _("@styleset { 毎日カレーを食べたい！: 1; }"), serializationSame: true },
   /* from http://en.wikipedia.org/wiki/Metal_umlaut */
   { rule: _("@styleset { TECHNICIÄNS\\ ÖF\\ SPÅCE\\ SHIP\\ EÅRTH\\ THIS\\ IS\\ YÖÜR\\ CÄPTÅIN\\ SPEÄKING\\ YÖÜR\\ ØÅPTÅIN\\ IS\\ DEA̋D: 1; }"), serializationSame: true },
   { rulesrc: ["@styleset { 123blah: 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { :123blah 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { :123blah: 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { ?123blah: 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { \"blah\": 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { complex blah: 1; }"], serializationNoValueDefn: true },
   { rulesrc: ["@styleset { complex\\  blah: 1; }"], serializationNoValueDefn: true }
 ];
 // test that invalid value declarations don't affect the parsing of surrounding
 // declarations.  So before + invalid + after should match the serialization
 // given in s.
 var gSurroundingTests = [
   // -- invalid, valid ==> valid
   { before: "", after: "@ornaments { whatchamacallit-1: 23; thingy-dingy: 3; }", s: _("@ornaments { whatchamacallit-1: 23; thingy-dingy: 3; }") },
   // -- valid, invalid ==> valid
   { before: "@ornaments { whatchamacallit-1: 23; thingy-dingy: 7; }", after: "", s: _("@ornaments { whatchamacallit-1: 23; thingy-dingy: 7; }") },
   // -- valid, invalid, valid ==> valid, valid
   { before: "@ornaments { whatchamacallit-1: 23; thingy-dingy: 3; }", after: "@character-variant { whatchamacallit-2: 23 4; }", s: _("@ornaments { whatchamacallit-1: 23; thingy-dingy: 3; } @character-variant { whatchamacallit-2: 23 4; }") },
   // -- invalid, valid, invalid ==> valid
   { between: "@ornaments { whatchamacallit-1: 23; thingy-dingy: 4; }", s: _("@ornaments { whatchamacallit-1: 23; thingy-dingy: 4; }") }
 ];
 /* strip out just values, along with empty value blocks (e.g. @swash { })*/
 function valuesText(ruletext)
 {
   var t = ruletext.replace(/@[a-zA-Z0-9\-]+[ \n]*{[ \n]*}/g, "");
   t = t.replace(/[ \n]+/g, " ");
   t = t.replace(/^[^{]+{[ \n]*/, "");
   t = t.replace(/[ \n]*}[^}]*$/, "");
   t = t.replace(/[ \n]*;/g, ";");
   return t;
 }
 function testParse(rulesrc)
 {
   var sheet = document.styleSheets[1];
   var rule = _.apply(this, rulesrc);
   while(sheet.cssRules.length > 0)
     sheet.deleteRule(0);
   try {
     sheet.insertRule(rule, 0);
   } catch (e) {
     return e.toString();
   }
   if (sheet.cssRules.length == 1 && sheet.cssRules[0].type == kFontFeatureValuesRuleType) {
     return sheet.cssRules[0].cssText.replace(/[ \n]+/g, " ");
   }
   return "";
 }
 function testOneRule(testrule) {
   var sheet = document.styleSheets[1];
   var rule;
   if ("rulesrc" in testrule) {
     rule = _.apply(this, testrule.rulesrc);
   } else {
     rule = testrule.rule;
   }
   var parseErr = false;
   var expectedErr = false;
   var invalid = false;
   if ("invalid" in testrule && testrule.invalid) invalid = true;
   while(sheet.cssRules.length > 0)
     sheet.deleteRule(0);
   try {
     sheet.insertRule(rule, 0);
   } catch (e) {
     expectedErr = (e.name == "SyntaxError"
       && e instanceof DOMException
       && e.code == DOMException.SYNTAX_ERR
       && invalid);
     parseErr = true;
   }
   test(function() {
     assert_true(!parseErr || expectedErr, "unexpected syntax error");
     if (!parseErr) {
       assert_equals(sheet.cssRules.length, 1, "bad rule count");
       assert_equals(sheet.cssRules[0].type, kFontFeatureValuesRuleType, "bad rule type");
     }
   }, "basic parse tests - " + rule);
   var sanitizedRule = rule.replace(/[ \n]+/g, " ");
   if (parseErr) {
     return;
   }
   // should result in one @font-feature-values rule constructed
   // serialization matches expectation
   // -- note: due to inconsistent font family serialization problems,
   //    only the serialization of the values is tested currently
   var ruleValues = valuesText(rule);
   var serialized = sheet.cssRules[0].cssText;
   var serializedValues = valuesText(serialized);
   var haveSerialization = true;
   if (testrule.serializationSame) {
     test(function() {
       assert_equals(serializedValues, ruleValues, "canonical cssText serialization doesn't match");
     }, "serialization check - " + rule);
   } else if ("serialization" in testrule) {
     var s = valuesText(testrule.serialization);
     test(function() {
       assert_equals(serializedValues, s, "non-canonical cssText serialization doesn't match - ");
     }, "serialization check - " + rule);
   } else if (testrule.serializationNoValueDefn) {
     test(function() {
       assert_equals(serializedValues, "", "cssText serialization should have no value defintions - ");
     }, "no value definitions in serialization - " + rule);
     haveSerialization = false;
     if ("rulesrc" in testrule) {
       test(function() {
         var j, rulesrc = testrule.rulesrc;
         // invalid value definitions shouldn't affect the parsing of valid
         // definitions before or after an invalid one
         for (var j = 0; j < gSurroundingTests.length; j++) {
           var t = gSurroundingTests[j];
           var srulesrc = [];
           if ("between" in t) {
             srulesrc = srulesrc.concat(rulesrc);
             srulesrc = srulesrc.concat(t.between);
             srulesrc = srulesrc.concat(rulesrc);
           } else {
             if (t.before != "")
               srulesrc = srulesrc.concat(t.before);
             srulesrc = srulesrc.concat(rulesrc);
             if (t.after != "")
               srulesrc = srulesrc.concat(t.after);
           }
           var result = testParse(srulesrc);
           assert_equals(valuesText(result), valuesText(t.s), "invalid declarations should not affect valid ones - ");
         }
       }, "invalid declarations don't affect valid ones - " + rule);
     }
   }
   // if serialization non-empty, serialization should round-trip to itself
   if (haveSerialization) {
     var roundTripText = testParse([serializedValues]);
     test(function() {
       assert_equals(valuesText(roundTripText), serializedValues,
          "serialization should round-trip to itself - ");
     }, "serialization round-trip - " + rule);
   }
 }
 function testFontFeatureValuesRuleParsing() {
   // Gecko-specific check - if pref not set, skip these tests
   if (window.SpecialPowers && !window.SpecialPowers.getBoolPref("layout.css.font-features.enabled")) {
     return;
   }
   var i;
   for (i = 0; i < testrules.length; i++) {
     var testrule = testrules[i];
     var rule;
     if ("rulesrc" in testrule) {
       rule = _.apply(this, testrule.rulesrc);
     } else {
       rule = testrule.rule;
     }
     testOneRule(testrule);
     //test(function() { testOneRule(testrule); }, "parsing " + rule);
   }
 }
 testFontFeatureValuesRuleParsing();
 </script>
 </body></html>

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layout/style/test/test_font_feature_values_parsing.html@141e0f1194b1 (annotated)

layout/style/test/test_font_feature_values_parsing.html