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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/custom-elements/overwritten-customElements-global.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/custom-elements/overwritten-customElements-global.html')
| -rw-r--r-- | testing/web-platform/tests/custom-elements/overwritten-customElements-global.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/overwritten-customElements-global.html b/testing/web-platform/tests/custom-elements/overwritten-customElements-global.html new file mode 100644 index 0000000000..dcb97b6652 --- /dev/null +++ b/testing/web-platform/tests/custom-elements/overwritten-customElements-global.html @@ -0,0 +1,61 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<body> +<script> +"use strict"; + +test(() => { + class SomeElement1 extends HTMLElement {} + customElements.define("some-element-1", SomeElement1); + + const savedCustomElements = Object.getOwnPropertyDescriptor(window, "customElements"); + Object.defineProperty(window, "customElements", { value: {}, configurable: true }); + + const element = document.createElement("some-element-1"); + assert_true(element instanceof SomeElement1); + + Object.defineProperty(window, "customElements", savedCustomElements); +}, "Custom elements can still be created after `window.customElements` is overwritten."); + +test(() => { + class SomeElement2 extends HTMLElement {} + customElements.define("some-element-2", SomeElement2); + + const savedCustomElements = Object.getOwnPropertyDescriptor(window, "customElements"); + Object.defineProperty(window, "customElements", { value: {}, configurable: true }); + + const element = new SomeElement2(); + assert_true(element instanceof SomeElement2); + + Object.defineProperty(window, "customElements", savedCustomElements); +}, "Custom elements can still be constructed after `window.customElements` is overwritten."); + +test(() => { + class SomeElement3 extends HTMLElement {} + customElements.define("some-element-3", SomeElement3); + + const savedCustomElements = Object.getOwnPropertyDescriptor(window, "customElements"); + delete window.customElements; + + const element = document.createElement("some-element-3"); + assert_true(element instanceof SomeElement3); + + Object.defineProperty(window, "customElements", savedCustomElements); +}, "Custom elements can still be created after `window.customElements` is deleted."); + +test(() => { + class SomeElement4 extends HTMLElement {} + customElements.define("some-element-4", SomeElement4); + + const savedCustomElements = Object.getOwnPropertyDescriptor(window, "customElements"); + delete window.customElements; + + const element = new SomeElement4(); + assert_true(element instanceof SomeElement4); + + Object.defineProperty(window, "customElements", savedCustomElements); +}, "Custom elements can still be constructed after `window.customElements` is deleted."); +</script> |