circuit-test/com.slack.circuit.test/TestEventSink

TestEventSink

class TestEventSink<UiEvent : CircuitUiEvent> : BaseTestEventSinkType<UiEvent> (source)

A test event sink that records events from a Circuit UI and allows making assertions about them.

Note: this class was heavily influenced by RxJava3's https://github.com/ReactiveX/RxJava/blob/v3.1.6/src/main/java/io/reactivex/rxjava3/observers/BaseTestConsumer.java.

See also

Constructors

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constructor()

Types

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object Companion

Functions

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fun <UiEvent : CircuitUiEvent> TestEventSink<UiEvent>.asEventSinkFunction(): (UiEvent) -> Unit

A helper function for creating a function wrapper around this TestEventSink for use in tests as an event sink function. We have to do this workaround in JS due to Kotlin/JS not allowing function type extension directly.

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fun assertEvent(event: UiEvent): TestEventSink<UiEvent>

Assert that this TestEventSink as received exactly one UiEvent and that it equals event.

fun assertEvent(predicate: (UiEvent) -> Boolean): TestEventSink<UiEvent>

Assert that this TestEventSink has received exactly one UiEvent and that running predicate with that event returns true.

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fun assertEventAt(index: Int, event: UiEvent): TestEventSink<UiEvent>

Assert that this TestEventSink received an event at index which is equal to the given event.

fun assertEventAt(index: Int, predicate: (UiEvent) -> Boolean): TestEventSink<UiEvent>

Assert this TestEventSink received an event at index and that running predicate with that event returns true.

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fun assertEventCount(count: Int): TestEventSink<UiEvent>

Assert that this TestEventSink has received count events.

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fun assertEvents(vararg events: UiEvent): TestEventSink<UiEvent>

Assert that this TestEventSink received only the specified events in the specified order.

fun assertEvents(predicate: (Int, UiEvent) -> Boolean): TestEventSink<UiEvent>

Assert that predicate returns true for each event received by this TestEventSink.

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fun assertNoEvents(): TestEventSink<UiEvent>

Assert that this TestEventSink has not received any events.

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open operator override fun invoke(event: UiEvent)

Sends the specified event to this TestEventSink.