diff options
| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html')
| -rw-r--r-- | testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html b/testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html new file mode 100644 index 000000000..04b4c4986 --- /dev/null +++ b/testing/web-platform/tests/custom-elements/htmlconstructor/newtarget.html @@ -0,0 +1,124 @@ +<!DOCTYPE html> +<title>Custom Elements: [HTMLConstructor] derives prototype from NewTarget</title> +<meta name="author" title="Domenic Denicola" href="mailto:d@domenic.me"> +<meta name="help" content="https://html.spec.whatwg.org/multipage/dom.html#htmlconstructor"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="../resources/custom-elements-helpers.js"></script> + +<script> +"use strict"; + +test_with_window(w => { + let afterDefinition = false; + const proto1 = { "proto": "number one" }; + const proto2 = { "proto": "number two" }; + + const TestElement = (function () { + assert_throws({ name: "prototype throws" }, () => { + const o = Reflect.construct(w.HTMLElement, [], new.target); + + assert_equals(Object.getPrototypeOf(o), proto2, + "Must use the value returned from new.target.prototype"); + assert_not_equals(Object.getPrototypeOf(o), proto1, + "Must not use the prototype stored at definition time"); + }); + }).bind({}); + + Object.defineProperty(TestElement, "prototype", { + get() { + return beforeDefinition ? proto1 : proto2; + } + }); + + w.customElements.define("test-element", TestElement); + + beforeDefinition = true; + new TestElement(); + +}, "Use NewTarget's prototype, not the one stored at definition time"); + +test_with_window(w => { + // We have to not throw during define(), but throw during super() + let throws = false; + + const TestElement = (function () { + assert_throws({ name: "prototype throws" }, () => { + return Reflect.construct(w.HTMLElement, [], new.target); + }); + }).bind({}); + + Object.defineProperty(TestElement, "prototype", { + get() { + if (throws) { + throw { name: "prototype throws" }; + } + return {}; + } + }); + + w.customElements.define("test-element", TestElement); + + throws = true; + new TestElement(); + +}, "Rethrow any exceptions thrown while getting the prototype"); + +test_with_window(w => { + for (const notAnObject of [null, undefined, 5, "string"]) { + // We have to return an object during define(), but not during super() + let returnNotAnObject = false; + + const TestElement = (function () { + const o = Reflect.construct(w.HTMLElement, [], new.target); + + assert_equals(Object.getPrototypeOf(o), window.HTMLElement, + "Must use the HTMLElement from the realm of NewTarget"); + assert_not_equals(Object.getPrototypeOf(o), w.HTMLElement, + "Must not use the HTMLElement from the realm of the active function object (w.HTMLElement)"); + + return o; + }).bind({}); + + Object.defineProperty(TestElement, "prototype", { + get() { + return returnNotAnObject ? notAnObject : {}; + } + }); + + w.customElements.define("test-element", TestElement); + + returnNotAnObject = true; + new TestElement(); + } +}, "If prototype is not object, derives the fallback from NewTarget's realm (autonomous custom elements)"); + +test_with_window(w => { + for (const notAnObject of [null, undefined, 5, "string"]) { + // We have to return an object during define(), but not during super() + let returnNotAnObject = false; + + const TestElement = (function () { + const o = Reflect.construct(w.HTMLParagraphElement, [], new.target); + + assert_equals(Object.getPrototypeOf(o), window.HTMLParagraphElement, + "Must use the HTMLParagraphElement from the realm of NewTarget"); + assert_not_equals(Object.getPrototypeOf(o), w.HTMLParagraphElement, + "Must not use the HTMLParagraphElement from the realm of the active function object (w.HTMLParagraphElement)"); + + return o; + }).bind({}); + + Object.defineProperty(TestElement, "prototype", { + get() { + return returnNotAnObject ? notAnObject : {}; + } + }); + + w.customElements.define("test-element", TestElement, { extends: "p" }); + + returnNotAnObject = true; + new TestElement(); + } +}, "If prototype is not object, derives the fallback from NewTarget's realm (customized built-in elements)"); +</script> |