Java Code Examples for reactor.test.publisher.TestPublisher#assertNoRequestOverflow()
The following examples show how to use
reactor.test.publisher.TestPublisher#assertNoRequestOverflow() .
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Example 1
Source File: FluxSwitchOnFirstTest.java From reactor-core with Apache License 2.0 | 6 votes |
@Test public void shouldNotHangWhenOneElementUpstream() { TestPublisher<Long> publisher = TestPublisher.createCold(); Flux<String> switchTransformed = publisher.flux() .switchOnFirst((first, innerFlux) -> innerFlux.map(String::valueOf) .subscriberContext(Context.of("a", "b")) ) .subscriberContext(Context.of("a", "c")) .subscriberContext(Context.of("c", "d")); publisher.next(1L); publisher.complete(); StepVerifier.create(switchTransformed, 0) .thenRequest(1) .expectNext("1") .expectComplete() .verify(Duration.ofSeconds(10)); publisher.assertWasRequested(); publisher.assertNoRequestOverflow(); }
Example 2
Source File: FluxSwitchOnFirstTest.java From reactor-core with Apache License 2.0 | 6 votes |
@Test public void backpressureTest() { TestPublisher<Long> publisher = TestPublisher.createCold(); AtomicLong requested = new AtomicLong(); Flux<String> switchTransformed = publisher.flux() .doOnRequest(requested::addAndGet) .switchOnFirst((first, innerFlux) -> innerFlux.map(String::valueOf)); publisher.next(1L); StepVerifier.create(switchTransformed, 0) .thenRequest(1) .expectNext("1") .thenRequest(1) .then(() -> publisher.next(2L)) .expectNext("2") .then(publisher::complete) .expectComplete() .verify(Duration.ofSeconds(10)); publisher.assertWasRequested(); publisher.assertNoRequestOverflow(); Assertions.assertThat(requested.get()).isEqualTo(2L); }
Example 3
Source File: FluxSwitchOnFirstTest.java From reactor-core with Apache License 2.0 | 6 votes |
@Test public void shouldErrorOnOverflowTest() { TestPublisher<Long> publisher = TestPublisher.createCold(); Flux<String> switchTransformed = publisher.flux() .switchOnFirst((first, innerFlux) -> innerFlux.map(String::valueOf)); publisher.next(1L); StepVerifier.create(switchTransformed, 0) .thenRequest(1) .expectNext("1") .then(() -> publisher.next(2L)) .expectErrorSatisfies(t -> Assertions .assertThat(t) .isInstanceOf(IllegalStateException.class) .hasMessage("Can't deliver value due to lack of requests") ) .verify(Duration.ofSeconds(10)); publisher.assertWasRequested(); publisher.assertNoRequestOverflow(); }
Example 4
Source File: FluxSwitchOnFirstTest.java From reactor-core with Apache License 2.0 | 5 votes |
@Test public void shouldNotFailOnIncorrectPublisherBehavior() { TestPublisher<Long> publisher = TestPublisher.createNoncompliant(TestPublisher.Violation.CLEANUP_ON_TERMINATE); Flux<Long> switchTransformed = publisher.flux() .switchOnFirst((first, innerFlux) -> innerFlux.subscriberContext(Context.of("a", "b"))); StepVerifier.create(new Flux<Long>() { @Override public void subscribe(CoreSubscriber<? super Long> actual) { switchTransformed.subscribe(actual); publisher.next(1L); } }, 0) .thenRequest(1) .expectNext(1L) .thenRequest(1) .then(() -> publisher.next(2L)) .expectNext(2L) .then(() -> publisher.error(new RuntimeException())) .then(() -> publisher.error(new RuntimeException())) .then(() -> publisher.error(new RuntimeException())) .then(() -> publisher.error(new RuntimeException())) .expectError() .verifyThenAssertThat(Duration.ofSeconds(5)) .hasDroppedErrors(3) .tookLessThan(Duration.ofSeconds(10)); publisher.assertWasRequested(); publisher.assertNoRequestOverflow(); }
Example 5
Source File: FluxSwitchOnFirstTest.java From reactor-core with Apache License 2.0 | 5 votes |
@Test // Since context is immutable, with switchOnFirst it should not be mutable as well. Upstream should observe downstream // Inner should be able to access downstreamContext but should not modify upstream context after the first element public void shouldNotBeAbleToAccessUpstreamContext() { TestPublisher<Long> publisher = TestPublisher.createCold(); Flux<String> switchTransformed = publisher.flux() .switchOnFirst( (first, innerFlux) -> innerFlux.map(String::valueOf) .subscriberContext(Context.of("a", "b")) ) .subscriberContext(Context.of("a", "c")) .subscriberContext(Context.of("c", "d")); publisher.next(1L); StepVerifier.create(switchTransformed, 0) .thenRequest(1) .expectNext("1") .thenRequest(1) .then(() -> publisher.next(2L)) .expectNext("2") .expectAccessibleContext() .contains("a", "c") .contains("c", "d") .then() .then(publisher::complete) .expectComplete() .verify(Duration.ofSeconds(10)); publisher.assertWasRequested(); publisher.assertNoRequestOverflow(); }