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Diffstat (limited to 'dom/base/test/test_window_proto.html')
| -rw-r--r-- | dom/base/test/test_window_proto.html | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/dom/base/test/test_window_proto.html b/dom/base/test/test_window_proto.html new file mode 100644 index 0000000000..944f953bc4 --- /dev/null +++ b/dom/base/test/test_window_proto.html @@ -0,0 +1,17 @@ +<!DOCTYPE html> +<meta charset=utf-8> +<title>Test for ...</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<div id="log"></div> +<script> +test(function() { + assert_throws(new TypeError, function() { + Object.setPrototypeOf(window, Object.create(window)); + }, "Setting prototype via setPrototypeOf"); + + assert_throws(new TypeError, function() { + window.__proto__ = Object.create(window); + }, "Setting prototype via __proto__"); +}, "Setting the prototype of a window to something that has the window on its proto chain should throw"); +</script> |