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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /dom/bindings/test/test_InstanceOf.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/bindings/test/test_InstanceOf.html')
| -rw-r--r-- | dom/bindings/test/test_InstanceOf.html | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/dom/bindings/test/test_InstanceOf.html b/dom/bindings/test/test_InstanceOf.html new file mode 100644 index 0000000000..d04e4e4771 --- /dev/null +++ b/dom/bindings/test/test_InstanceOf.html @@ -0,0 +1,53 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=748983 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 748983</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=748983">Mozilla Bug 748983</a> +<p id="display"></p> +<div id="content" style="display: none"> +</div> +<pre id="test"> +<script type="application/javascript"> + +/** Test for Bug 748983 **/ + +SimpleTest.waitForExplicitFinish(); + +function runTest() { + ok(document instanceof EventTarget, "document is an event target"); + ok(new XMLHttpRequest() instanceof XMLHttpRequest, "instanceof should work on XHR"); + ok(HTMLElement.prototype instanceof Node, "instanceof needs to walk the prototype chain"); + + var otherWin = document.getElementById("testFrame").contentWindow; + + ok(otherWin.HTMLElement.prototype instanceof otherWin.Node, "Same-origin instanceof of a interface prototype object should work, even if called cross-origin"); + ok(!(otherWin.HTMLElement.prototype instanceof Node), "Cross-origin instanceof of a interface prototype object shouldn't work"); + + // We need to reset HTMLElement.prototype.__proto__ to the original value + // before using anything from the harness, otherwise the harness code breaks + // in weird ways. + HTMLElement.prototype.__proto__ = otherWin.Element.prototype; + var [ shouldSucceed, shouldFail ] = otherWin.runTest(); + shouldSucceed = shouldSucceed && HTMLElement.prototype instanceof otherWin.Element; + shouldFail = shouldFail && HTMLElement.prototype instanceof Element; + HTMLElement.prototype.__proto__ = Element.prototype; + + ok(shouldSucceed, "If an interface prototype object is on the protochain then instanceof with the interface object should succeed"); + ok(!shouldFail, "If an interface prototype object is not on the protochain then instanceof with the interface object should succeed"); + + SimpleTest.finish(); +} + +</script> +</pre> +<iframe id="testFrame" src="file_InstanceOf.html" onload="runTest()"></iframe> +</body> +</html> |