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Merge pull request #11104 from nguyennamthai/BAEL-4883 

Bael 4883
This commit is contained in:
Greg 2021-08-29 10:20:11 -04:00 committed by GitHub
parent 6d5fcbc7ee ab3fc12268
commit 56a9917613
2 changed files with 91 additions and 2 deletions
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4
reactor-core/pom.xml
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@ -41,8 +41,8 @@
</dependencies>
<properties>
<reactor.version>3.3.9.RELEASE</reactor.version>
<reactor.version>3.4.9</reactor.version>
<assertj.version>3.6.1</assertj.version>
</properties>
</project>
</project>

89
reactor-core/src/test/java/com/baeldung/reactor/exception/ExceptionUnitTest.java Normal file
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@ -0,0 +1,89 @@
package com.baeldung.reactor.exception;
import org.junit.Test;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.publisher.SynchronousSink;
import reactor.test.StepVerifier;
import java.util.function.BiConsumer;
import java.util.function.Function;
public class ExceptionUnitTest {
@Test
public void givenInvalidElement_whenPipelineThrowsException_thenErrorIsSentDownstream() {
Function<String, Integer> mapper = input -> {
if (input.matches("\\D")) {
throw new NumberFormatException();
} else {
return Integer.parseInt(input);
}
};
Flux<String> inFlux = Flux.just("1", "1.5", "2");
Flux<Integer> outFlux = inFlux.map(mapper);
StepVerifier.create(outFlux)
.expectNext(1)
.expectError(NumberFormatException.class)
.verify();
}
@Test
public void givenInvalidElement_whenHandleCallsSinkErrorMethod_thenErrorIsSentDownstream() {
BiConsumer<String, SynchronousSink<Integer>> handler = (input, sink) -> {
if (input.matches("\\D")) {
sink.error(new NumberFormatException());
} else {
sink.next(Integer.parseInt(input));
}
};
Flux<String> inFlux = Flux.just("1", "1.5", "2");
Flux<Integer> outFlux = inFlux.handle(handler);
StepVerifier.create(outFlux)
.expectNext(1)
.expectError(NumberFormatException.class)
.verify();
}
@Test
public void givenInvalidElement_whenFlatMapCallsMonoErrorMethod_thenErrorIsSentDownstream() {
Function<String, Publisher<Integer>> mapper = input -> {
if (input.matches("\\D")) {
return Mono.error(new NumberFormatException());
} else {
return Mono.just(Integer.parseInt(input));
}
};
Flux<String> inFlux = Flux.just("1", "1.5", "2");
Flux<Integer> outFlux = inFlux.flatMap(mapper);
StepVerifier.create(outFlux)
.expectNext(1)
.expectError(NumberFormatException.class)
.verify();
}
@Test
public void givenNullElement_whenPipelineOperatorExecutes_thenNpeIsSentDownstream() {
Function<String, Integer> mapper = input -> {
if (input == null) {
return 0;
} else {
return Integer.parseInt(input);
}
};
Flux<String> inFlux = Flux.just("1", null, "2");
Flux<Integer> outFlux = inFlux.map(mapper);
StepVerifier.create(outFlux)
.expectNext(1)
.expectError(NullPointerException.class)
.verify();
}
}