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89 lines
3.5 KiB
HTML
89 lines
3.5 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=649740
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-->
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<head>
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<title>Test for Bug 649740</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<style id="style">
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</style>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=649740">Mozilla Bug 649740</a>
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<p id="display1"></p>
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<p id="display2"></p>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 649740 **/
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function condition(s) {
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return s.replace(/^@supports\s*/, '').replace(/ \s*{\s*}\s*$/, '');
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}
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var styleSheetText =
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"@supports(color: green){ }\n" +
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"@supports (color: green) { }\n" +
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"@supports ((color: green)) { }\n" +
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"@supports (color: green) and (color: blue) { }\n" +
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"@supports ( Font: 20px serif ! Important) { }";
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function runTest() {
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var style = document.getElementById("style");
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style.textContent = styleSheetText;
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var sheet = style.sheet;
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is(condition(sheet.cssRules[0].cssText), "(color: green)");
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is(condition(sheet.cssRules[1].cssText), "(color: green)");
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is(condition(sheet.cssRules[2].cssText), "((color: green))");
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is(condition(sheet.cssRules[3].cssText), "(color: green) and (color: blue)");
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is(condition(sheet.cssRules[4].cssText), "( Font: 20px serif ! Important)");
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var cs1 = getComputedStyle(document.getElementById("display1"), "");
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var cs2 = getComputedStyle(document.getElementById("display2"), "");
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function check_balanced_condition(condition, expected_match) {
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style.textContent = "#display1, #display2 { text-decoration: overline }\n" +
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"@supports " + condition + "{\n" +
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" #display1 { text-decoration: line-through }\n" +
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"}\n" +
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"#display2 { text-decoration: underline }\n";
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is(cs1.textDecoration,
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expected_match ? "line-through" : "overline",
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"@supports condition \"" + condition + "\" should " +
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(expected_match ? "" : "NOT ") + "match");
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is(cs2.textDecoration, "underline",
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"@supports condition \"" + condition + "\" should be balanced");
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}
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check_balanced_condition("not (color: green)", false);
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check_balanced_condition("not (colour: green)", true);
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check_balanced_condition("not(color: green)", false);
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check_balanced_condition("not(colour: green)", false);
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check_balanced_condition("not/* */(color: green)", false);
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check_balanced_condition("not/* */(colour: green)", false);
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check_balanced_condition("not /* */ (color: green)", false);
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check_balanced_condition("not /* */ (colour: green)", true);
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check_balanced_condition("(color: green) and (color: blue)", true);
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check_balanced_condition("(color: green) /* */ /* */ and /* */ /* */ (color: blue)", true);
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check_balanced_condition("(color: green) and(color: blue)", false);
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check_balanced_condition("(color: green) and/* */(color: blue)", false);
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check_balanced_condition("(color: green)and (color: blue)", false);
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check_balanced_condition("(color: green) or (color: blue)", true);
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check_balanced_condition("(color: green) /* */ /* */ or /* */ /* */ (color: blue)", true);
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check_balanced_condition("(color: green) or(color: blue)", false);
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check_balanced_condition("(color: green) or/* */(color: blue)", false);
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check_balanced_condition("(color: green)or (color: blue)", false);
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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runTest();
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</script>
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</pre>
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</body>
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</html>
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