The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/testing/mochitest/tests/SimpleTest/WindowSnapshot.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,63 @@
     1.4 +var gWindowUtils;
     1.5 +
     1.6 +try {
     1.7 +  gWindowUtils = SpecialPowers.getDOMWindowUtils(window);
     1.8 +  if (gWindowUtils && !gWindowUtils.compareCanvases)
     1.9 +    gWindowUtils = null;
    1.10 +} catch (e) {
    1.11 +  gWindowUtils = null;
    1.12 +}
    1.13 +
    1.14 +function snapshotWindow(win, withCaret) {
    1.15 +  return SpecialPowers.snapshotWindow(win, withCaret);
    1.16 +}
    1.17 +
    1.18 +// If the two snapshots don't compare as expected (true for equal, false for
    1.19 +// unequal), returns their serializations as data URIs.  In all cases, returns
    1.20 +// whether the comparison was as expected.
    1.21 +function compareSnapshots(s1, s2, expected) {
    1.22 +  var s1Str, s2Str;
    1.23 +  var correct = false;
    1.24 +  if (gWindowUtils) {
    1.25 +    // First, check that the canvases are the same size.
    1.26 +    var equal;
    1.27 +    if (s1.width != s2.width || s1.height != s2.height) {
    1.28 +      equal = false;
    1.29 +    } else {
    1.30 +      try {
    1.31 +        equal = (gWindowUtils.compareCanvases(s1, s2, {}) == 0);
    1.32 +      } catch (e) {
    1.33 +        equal = false;
    1.34 +        ok(false, "Exception thrown from compareCanvases: " + e);
    1.35 +      }
    1.36 +    }
    1.37 +    correct = (equal == expected);
    1.38 +  }
    1.39 +
    1.40 +  if (!correct) {
    1.41 +    s1Str = s1.toDataURL();
    1.42 +    s2Str = s2.toDataURL();
    1.43 +
    1.44 +    if (!gWindowUtils) {
    1.45 +	correct = ((s1Str == s2Str) == expected);
    1.46 +    }
    1.47 +  }
    1.48 +
    1.49 +  return [correct, s1Str, s2Str];
    1.50 +}
    1.51 +
    1.52 +function assertSnapshots(s1, s2, expected, s1name, s2name) {
    1.53 +  var [correct, s1Str, s2Str] = compareSnapshots(s1, s2, expected);
    1.54 +  var sym = expected ? "==" : "!=";
    1.55 +  ok(correct, "reftest comparison: " + sym + " " + s1name + " " + s2name);
    1.56 +  if (!correct) {
    1.57 +    var report = "REFTEST TEST-UNEXPECTED-FAIL | " + s1name + " | image comparison (" + sym + ")\n";
    1.58 +    if (expected) {
    1.59 +      report += "REFTEST   IMAGE 1 (TEST): " + s1Str + "\n";
    1.60 +      report += "REFTEST   IMAGE 2 (REFERENCE): " + s2Str + "\n";
    1.61 +    } else {
    1.62 +      report += "REFTEST   IMAGE: " + s1Str + "\n";
    1.63 +    }
    1.64 +    dump(report);
    1.65 +  }
    1.66 +}