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+<!DOCTYPE HTML>
+<html>
+<!--
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1202095
+-->
+ <head>
+ <title>Test for Bug 1202095</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+ <style>
+ @import url('bug1202095.css');
+ @import url('bug1202095-2.css');
+ </style>
+ </head>
+ <body>
+ <script type="application/javascript">
+const InspectorUtils = SpecialPowers.InspectorUtils;
+
+function do_test() {
+ var sheet = document.styleSheets[1];
+ var importRule = sheet.cssRules[0];
+ is(importRule.type, CSSRule.IMPORT_RULE,
+ "initial sheet has @import rule");
+
+ var importedSheet = importRule.styleSheet;
+ importedSheet.deleteRule(0);
+ is(importedSheet.cssRules.length, 0, "imported sheet now has no rules");
+
+ // "suffixed" refers to the "-2".
+ var suffixedSheet = sheet.cssRules[1].styleSheet;
+ InspectorUtils.parseStyleSheet(suffixedSheet, "");
+ is(suffixedSheet.cssRules.length, 0, "second imported sheet now has no rules");
+
+ // Re-parse the style sheet, preserving the imports.
+ InspectorUtils.parseStyleSheet(sheet, "@import url('bug1202095.css');" +
+ "@import url('bug1202095-2.css');");
+ is(sheet.cssRules[0].type, CSSRule.IMPORT_RULE,
+ "re-parsed sheet has @import rule");
+ is(sheet.cssRules[0].styleSheet, importedSheet,
+ "imported sheet has not changed");
+ is(sheet.cssRules[1].styleSheet, suffixedSheet,
+ "second imported sheet has not changed");
+
+ // Re-parse the style sheet, preserving both imports, but changing
+ // the order.
+ InspectorUtils.parseStyleSheet(sheet, "@import url('bug1202095-2.css');" +
+ "@import url('bug1202095.css');");
+ is(sheet.cssRules[0].styleSheet, suffixedSheet,
+ "reordering preserved suffixed style sheet");
+ is(sheet.cssRules[1].styleSheet, importedSheet,
+ "reordering preserved unsuffixed style sheet");
+
+ // Re-parse the style sheet, removing the imports.
+ InspectorUtils.parseStyleSheet(sheet, "");
+ is(sheet.cssRules.length, 0, "style sheet now has no rules");
+
+ // Re-parse the style sheet, adding one import back. This should
+ // not allow reuse.
+ InspectorUtils.parseStyleSheet(sheet, "@import url('bug1202095.css');");
+ is(sheet.cssRules[0].type, CSSRule.IMPORT_RULE,
+ "re-re-re-parsed sheet has @import rule");
+ isnot(sheet.cssRules[0].styleSheet, importedSheet,
+ "imported sheet has changed now");
+
+ // Re-parse the style sheet, importing the same URL twice.
+ // The style sheet should be reused once, but not two times.
+ importedSheet = sheet.cssRules[0].styleSheet;
+ InspectorUtils.parseStyleSheet(sheet, "@import url('bug1202095.css');" +
+ "@import url('bug1202095.css');");
+ is(sheet.cssRules[0].styleSheet, importedSheet,
+ "first imported sheet is reused");
+ isnot(sheet.cssRules[1].styleSheet, importedSheet,
+ "second imported sheet is reused");
+
+ SimpleTest.finish();
+}
+
+SimpleTest.waitForExplicitFinish();
+addLoadEvent(do_test);
+ </script>
+ </body>
+</html>