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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 /testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.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 'testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.html')
| -rw-r--r-- | testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.html | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.html b/testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.html new file mode 100644 index 0000000000..97a156290a --- /dev/null +++ b/testing/web-platform/tests/html/browsers/the-windowproxy-exotic-object/windowproxy-prevent-extensions.html @@ -0,0 +1,21 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>[[PreventExtensions]] on a WindowProxy object should return false</title> +<link rel="help" href="https://html.spec.whatwg.org/multipage/window-object.html#windowproxy-preventextensions"> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<script> +"use strict"; + +test(() => { + assert_throws_js(TypeError, () => { + Object.preventExtensions(window); + }); +}, "Object.preventExtensions throws a TypeError"); + +test(() => { + assert_false(Reflect.preventExtensions(window)); +}, "Reflect.preventExtensions returns false"); +</script> |