Meziantou.Framework

js

edit

WPT coverage of the tests of js at the revision 5602b0f210e3. The tests link to their results in the browsers on wpt.fyi. The tentative tests (experimental features) and the reftests are listed separately from the stable tests.

GroupPassingTestsDisabledPass rate
Stable1626164%
Tentative000–
Reftests000–
All1626164%

Failure reasons

The tests that do not pass (failing or disabled), by kind of reason. A test with several reasons counts once per kind.

  • NOT IMPLEMENTED: 9
  • FLAKY: 1

Stable tests

TestResultSubtestsKindDescription
behaviours/HostEnsureCanAddPrivateElement.window.jsPass13 / 13
behaviours/SetPrototypeOf-window.htmlPass4 / 4
builtins/Array.DefineOwnProperty.htmlPass1 / 1
builtins/Array.prototype.join-order.htmlPass51 / 51
builtins/Math.max.htmlPass6 / 6
builtins/Math.min.htmlPass6 / 6
builtins/Object.prototype.freeze.htmlPass1 / 1
builtins/Object.prototype.getOwnPropertyNames.htmlPass4 / 4
builtins/Object.prototype.hasOwnProperty-order.htmlPass4 / 4
builtins/Object.prototype.hasOwnProperty-prototype-chain.htmlPass3 / 3
builtins/Object.prototype.preventExtensions.htmlPass1 / 1
builtins/Object.prototype.seal.htmlPass1 / 1
builtins/Promise-incumbent-global.sub.htmlPass1 / 1
builtins/Promise-subclassing.htmlPass8 / 8
builtins/WeakMap.prototype-properties.htmlPass20 / 20
builtins/weakrefs/cleanup-prevented-with-reference.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/cleanup-prevented-with-unregister.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/finalizationregistry-cleanupCallback-gets-a-microtask.optional.any.jsDisabled–FLAKYTestUtils.gc() is not exposed, so garbageCollect() only allocates garbage: whether the .NET GC collects the target during the test (and the 1,000 cleanup callbacks run) depends on the timing, so it passes or fails randomly (the test is optional: the specification allows an implementation to never call them)
builtins/weakrefs/finalizationregistry-cleanupCallback-throws-onerror-interaction.optional.window.jsPass1 / 1
builtins/weakrefs/gc-has-one-chance-to-call-cleanupCallback-queueMicrotask.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/gc-has-one-chance-to-call-cleanupCallback-queueMicrotaskMutationObserver.optional.window.jsFail0 / 1NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/gc-has-one-chance-to-call-cleanupCallback.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/holdings-multiple-values.optional.any.jsFail0 / 18NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/reentrancy.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/return-undefined-with-gc.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)
builtins/weakrefs/unregister-cleaned-up-cell.optional.any.jsFail0 / 2NOT IMPLEMENTEDFinalizationRegistry.prototype.cleanupSome: a TC39 proposal that is not part of ECMA-262 (Chromium, Firefox and Safari fail these tests too)