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wpt / dom / observable / tentative / observable-constructor.any.html

Spec: DOM ↗

Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@e7122b73f, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-70fb3 (wpt@4a01b83e3, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

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SubtestChromeFirefoxSafariLadybirdServoBlitz
Observable constructorPASSFAILFAILFAILFAIL—
subscribe() can be called with no argumentsPASSFAILFAILFAILFAIL—
Subscriber interface is not constructiblePASSFAILFAILFAILFAIL—
Subscribe with just a function as the next handlerPASSFAILFAILFAILFAIL—
Observable constructor calls initializer on subscribePASSFAILFAILFAILFAIL—
Observable error path called synchronouslyPASSFAILFAILFAILFAIL—
Subscriber must have receiverPASSFAILFAILFAILFAIL—
Subscriber next & error must recieve argumentPASSFAILFAILFAILFAIL—
Subscriber complete() will set active to false, and abort signalPASSFAILFAILFAILFAIL—
Subscriber active is readonlyPASSFAILFAILFAILFAIL—
Subscriber signal is readonlyPASSFAILFAILFAILFAIL—
Observable should error if initializer throwsPASSFAILFAILFAILFAIL—
Subscription is inactive after complete()PASSFAILFAILFAILFAIL—
Subscription is inactive after error()PASSFAILFAILFAILFAIL—
Subscription is inactive when aborted signal is passed inPASSFAILFAILFAILFAIL—
Subscriber#signal is not the same AbortSignal as the one passed into `subscribe()`PASSFAILFAILFAILFAIL—
Subscription does not emit values after completionPASSFAILFAILFAILFAIL—
Subscription does not emit values after errorPASSFAILFAILFAILFAIL—
Completing or nexting a subscriber after an error does nothingPASSFAILFAILFAILFAIL—
Errors pushed to the subscriber that are not handled by the subscription are reported to the globalPASSFAILFAILFAILFAIL—
Errors thrown in the initializer that are not handled by the subscription are reported to the globalPASSFAILFAILFAILFAIL—
Subscription reports errors that are pushed after subscriber is closed by completionPASSFAILFAILFAILFAIL—
Errors thrown by initializer function after subscriber is closed by completion are reportedPASSFAILFAILFAILFAIL—
Errors thrown by initializer function after subscriber is closed by error are reportedPASSFAILFAILFAILFAIL—
Errors pushed by initializer function after subscriber is closed by error are reportedPASSFAILFAILFAILFAIL—
Subscriber#complete() cannot re-entrantly invoke itselfPASSFAILFAILFAILFAIL—
Subscriber#error() cannot re-entrantly invoke itselfPASSFAILFAILFAILFAIL—
Unsubscription lifecyclePASSFAILFAILFAILFAIL—
Teardowns are called in upstream->downstream order on consumer-initiated unsubscriptionPASSFAILFAILFAILFAIL—
Teardowns are called in downstream->upstream order on consumer-initiated unsubscription with pre-aborted SignalPASSFAILFAILFAILFAIL—
Producer-initiated unsubscription in a downstream Observable fires abort events before each teardown, in downstream->upstream orderPASSFAILFAILFAILFAIL—
Subscriber#error() value is stored as Subscriber's AbortSignal's reasonPASSFAILFAILFAILFAIL—
Aborting a subscription should stop emitting valuesPASSFAILFAILFAILFAIL—
Calling subscribe should never throw an error synchronously, initializer throws errorPASSFAILFAILFAILFAIL—
Calling subscribe should never throw an error synchronously, subscriber pushes errorPASSFAILFAILFAILFAIL—
Teardown should be called when subscription is abortedPASSFAILFAILFAILFAIL—
Teardowns should be called when subscription is closed by completionPASSFAILFAILFAILFAIL—
Teardowns should be called when subscription is closed by subscriber pushing an errorPASSFAILFAILFAILFAIL—
Teardowns should be called when subscription is closed by subscriber throwing errorPASSFAILFAILFAILFAIL—
Teardowns should be called synchronously during addTeardown() if the subscription is inactivePASSFAILFAILFAILFAIL—
Multiple subscriptions share the same producer and teardown runs only after last subscription abortPASSFAILFAILFAILFAIL—
New subscription after complete creates new producerPASSFAILFAILFAILFAIL—
Teardown runs after last unsubscribe regardless of unsubscription orderPASSFAILFAILFAILFAIL—
Subscriber iterates over a snapshot of its internal observersPASSFAILFAILFAILFAIL—