How to use CompletableFutureAssert class of org.assertj.core.api package

Best Assertj code snippet using org.assertj.core.api.CompletableFutureAssert

Source:CompletableFutureAssertionsExamples.java Github

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...25 * {@link CompletableFuture} assertions example.26 *27 * @author Joel Costigliola28 */29public class CompletableFutureAssertionsExamples extends AbstractAssertionsExamples {30 @Test31 public void completableFuture_assertions_examples() {32 CompletableFuture<String> completedFuture = completedFuture("something");33 assertThat(completedFuture).isCompleted()34 .isCompletedWithValue("something")35 .isCompletedWithValueMatching(result -> result.startsWith("some"))36 .isCompletedWithValueMatching(result -> result.startsWith("some"), "error message")37 .isDone();38 CompletableFuture<?> futureExplosion = new CompletableFuture<>();39 futureExplosion.completeExceptionally(new RuntimeException("boom !"));40 assertThat(futureExplosion).isCompletedExceptionally()41 .isDone();42 assertThat(futureExplosion).isCompletedExceptionally()43 .isNotCancelled()44 .failsWithin(10, TimeUnit.MILLISECONDS)45 .withThrowableOfType(ExecutionException.class)46 .withCauseInstanceOf(RuntimeException.class)47 .withMessageContaining("boom !");48 CompletableFuture<?> cancelledFuture = new CompletableFuture<>();49 cancelledFuture.cancel(true);50 assertThat(cancelledFuture).isCancelled()51 .isDone()52 .isCompletedExceptionally();53 CompletableFuture<String> future = completedFuture("ook!");54 // assertion expressed with TimeUnit55 assertThat(future).succeedsWithin(100, TimeUnit.MILLISECONDS)56 .isEqualTo("ook!");57 // strongly typed assertion58 assertThat(future).succeedsWithin(100, TimeUnit.MILLISECONDS, as(STRING))59 .startsWith("oo");60 // same assertions with Duration61 assertThat(future).succeedsWithin(Duration.ofMillis(100))62 .isEqualTo("ook!");63 assertThat(future).succeedsWithin(Duration.ofMillis(100), as(STRING))64 .startsWith("oo");65 // log some error messages to have a look at them66 try {67 assertThat(completedFuture).isCompletedWithValueMatching(result -> result == null, "expected null");68 } catch (AssertionError e) {69 logAssertionErrorMessage("CompletableFutureAssert.isCompletedWithValueMatching", e);70 }71 try {72 assertThat(completedFuture).isCompletedExceptionally()73 .isNotCancelled();74 } catch (AssertionError e) {75 logAssertionErrorMessage("CompletableFutureAssert.hasFailed", e);76 }77 }78 @Test79 public void completionStage_assertions_examples() {80 CompletionStage<String> actual = completedFuture("done");81 assertThat(actual).isDone()82 .isNotCancelled()83 .isNotCompletedExceptionally();84 }85}...

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Source:CompletableFutureAssert.java Github

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...17 * Assertions for {@link CompletableFuture}.18 *19 * @param <RESULT> type of the value contained in the {@link CompletableFuture}.20 */21public class CompletableFutureAssert<RESULT> extends AbstractCompletableFutureAssert<CompletableFutureAssert<RESULT>, RESULT> {22 protected CompletableFutureAssert(CompletableFuture<RESULT> actual) {23 super(actual, CompletableFutureAssert.class);24 }25 protected CompletableFutureAssert(CompletionStage<RESULT> actual) {26 super(actual == null ? null : actual.toCompletableFuture(), CompletableFutureAssert.class);27 }28}...

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CompletableFutureAssert

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1import org.assertj.core.api.CompletableFutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.ExecutionException;4public class CompletableFutureAssertExample {5 public static void main(String[] args) throws ExecutionException, InterruptedException {6 CompletableFuture<String> cf = CompletableFuture.supplyAsync(() -> "Hello");7 CompletableFutureAssert<String> cfAssert = new CompletableFutureAssert<>(cf);8 cfAssert.isCompleted();9 cfAssert.isNotCancelled();10 cfAssert.isNotCompletedExceptionally();11 cfAssert.hasNotFailed();12 cfAssert.hasFailed();13 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"));14 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello");15 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World");16 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java");17 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala");18 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin");19 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin", "C++");20 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin", "C++", "C");21 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin", "C++", "C", "C#");22 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin", "C++", "C", "C#", "Python");23 cfAssert.isCompletedWithValueMatching(s -> s.equals("Hello"), "Hello", "World", "Java", "Scala", "Kotlin", "C++", "C", "C#", "Python", "Ruby");24 }25}

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CompletableFutureAssert

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1import java.util.concurrent.CompletableFuture;2import java.util.concurrent.ExecutionException;3import org.assertj.core.api.CompletableFutureAssert;4import org.assertj.core.api.CompletableFutureAssertBaseTest;5public class CompletableFutureAssertTest extends CompletableFutureAssertBaseTest {6 protected CompletableFutureAssert<String> invoke_api_method() {7 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");8 return assertThat(future);9 }10 protected void verify_internal_effects() {11 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");12 try {13 assertThat(future.get()).isEqualTo("Hello");14 } catch (InterruptedException | ExecutionException e) {15 e.printStackTrace();16 }17 }18}

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CompletableFutureAssert

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1import java.util.concurrent.CompletableFuture;2import java.util.concurrent.CompletionStage;3import java.util.concurrent.TimeUnit;4import java.util.concurrent.TimeoutException;5import java.util.function.Supplier;6import org.assertj.core.api.CompletableFutureAssert;7import org.assertj.core.api.CompletionStageAssert;8import org.assertj.core.api.ThrowableAssert.ThrowingCallable;9import org.assertj.core.api.ThrowableAssertAlternative;10import org.assertj.core.api.ThrowableAssertBaseTest;11import org.assertj.core.api.ThrowableAssertCaughtException;12import org.assertj.core.api.ThrowableAssertNoExpectedType;13import org.assertj.core.api.ThrowableAssertNoValue;14import org.assertj.core.util.introspection.IntrospectionError;15import org.junit.jupiter.api.Test;16import org.junit.jupiter.api.function.Executable;17import org.mockito.Mockito;18import org.opentest4j.AssertionFailedError;19import org.opentest4j.MultipleFailuresError;20import org.opentest4j.ValueWrapper;21import static org.assertj.core.api.Assertions.assertThat;22import static org.assertj.core.api.Assertions.assertThatCode;23import static org.assertj.core.api.Assertions.assertThatExceptionOfType;24import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;25import static org.assertj.core.api.Assertions.assertThatNoException;26import static org.assertj.core.api.Assertions.assertThatNullPointerException;27import static org.assertj.core.api.Assertions.assertThatThrownBy;28import static org.assertj.core.api.Assertions.assertThatThrownByCode;29import static org.assertj.core.api.Assertions.catchThrowable;30import static org.assertj.core.api.Assertions.catchThrowableOfType;31import static org.assertj.core.api.Assertions.catchThrowableType;32import static org.assertj.core.api.Assertions.fa

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CompletableFutureAssert

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1import org.assertj.core.api.CompletableFutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.TimeUnit;4public class CompletableFutureAssertExample {5 public static void main(String[] args) throws InterruptedException {6 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello World");7 CompletableFutureAssert.assertThat(future).isDone();8 System.out.println("CompletableFutureAssertExample");9 }10}

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CompletableFutureAssert

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1import org.assertj.core.api.CompletableFutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.TimeUnit;4public class CompletableFutureAssertExample {5 public static void main(String[] args) throws InterruptedException {6 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello World");7 CompletableFutureAssert.assertThat(future).isDone();8 System.out.println("CompletableFutureAssertExample");9 }10}

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CompletableFutureAssert

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1package com.automationrhapsody.junit5;2import static org.assertj.core.api.Assertions.assertThat;3import static org.junit.jupiter.api.Assertions.assertAll;4import java.util.concurrent.CompletableFuture;5import java.util.concurrent.ExecutionException;6import org.junit.jupiter.api.Test;7public class CompletableFutureAssertTest {8 public void whenUsingCompletableFutureAssert_thenCorrect() throws InterruptedException, ExecutionException {9 CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");10 assertAll(11 () -> assertThat(completableFuture).isCompletedWithValue("Hello"),12 () -> assertThat(completableFuture).isCompleted(),13 () -> assertThat(completableFuture).isNotCancelled(),14 () -> assertThat(completableFuture).isNotCompletedExceptionally(),15 () -> assertThat(completableFuture).isNotDone());16 }17}

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CompletableFutureAssert

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1package org.example;2import java.util.concurrent.CompletableFuture;3import org.assertj.core.api.CompletableFutureAssert;4public class App {5 public static void main(String[] args) {6 CompletableFuture<String> future = CompletableFuture.completedFuture("Hello");7 CompletableFutureAssert<String> assertion = new CompletableFutureAssert<>(future);8 assertion.isCompletedWithValue("Hello");9 }10}11ge or.assertj.core.api;12import java.util.concurrnt.Com

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CompletableFutureAssert

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1import.CompletableFutureAssert2Java 9 CompletableFuture APICompletableFuture;3import java.util.concurrent.TimeUnit;4import java.util.concurrent.TimeoutException;5import java.util.function.Supplier;6public class CompletableFutureAssertExample {7 public static void main(String[] args) throws TimeoutException, InterruptedException {8 Supplier<String> supplier = () -> {9 try {10 Thread.sleep(2000);11 } catch (InterruptedException e) {12 e.printStackTrace();13 }14 return "Hello";15 };16 CompletableFuture<String> future = CompletableFuture.supplyAsync(supplier);17 CompletableFutureAssert.assertThat(future).isCompletedWithin(3000, TimeUnit.MILLISECONDS);18 }19}

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CompletableFutureAssert

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1package org.assertj.core.api;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.CompletionStage;4public class CompletableFutureAssert<RESULT> extends AbstractCompletableFutureAssert<CompletableFutureAssert<RESULT>, RESULT> {5 public CompletableFutureAssert(CompletionStage<RESULT> actual) {6 super(actual, CompletableFutureAssert.class);7 }8}9package org.assertj.core.api;10import java.util.concurrent.CompletableFuture;11import java.util.concurrent.CompletionStage;12public class AbstractCompletableFutureAssert<SELF extends AbstractCompletableFutureAssert<SELF, RESULT>, RESULT> extends AbstractFutureAssert<SELF, CompletionStage<RESULT>, RESULT> {13 public AbstractCompletableFutureAssert(CompletionStage<RESULT> actual, Class<?> selfType) {14 super(actual, selfType);15 }16}17package org.assertj.core.api;18import java.util.concurrent.CompletableFuture;19import java.util.concurrent.CompletionStage;20public abstract class AbstractFutureAssert<SELF extends AbstractFutureAssert<SELF, ACTUAL, RESULT>, ACTUAL extends CompletionStage<RESULT>, RESULT> extends AbstractAssert<SELF, ACTUAL> {21 public AbstractFutureAssert(ACTUAL actual, Class<?> selfType) {22 super(actual, selfType);23 }24}25package org.assertj.core.api;26import java.util.concurrent.CompletableFuture;27import java.util.concurrent.CompletionStage;28public abstract class AbstractAssert<SELF extends AbstractAssert<SELF, ACTUAL>, ACTUAL> {29 public AbstractAssert(ACTUAL actual, Class<?> selfType) {30 }31}32package org.assertj.core.api;33import java.util.concurrent.CompletableFuture;34import java.util.concurrent.CompletionStage;35public abstract class AbstractObjectAssert<SELF extends AbstractObjectAssert<SELF, ACTUAL>, ACTUAL> extends AbstractAssert<SELF, ACTUAL> {36 public AbstractObjectAssert(ACTUAL actual, Class<?> selfType) {37 super(actual, selfType);38 }39}40package org.assertj.core.api;41import java.util.concurrent.Com

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CompletableFutureAssert

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1import org.assertj.core.api.CompletableFutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.TimeUnit;4import java.util.concurrent.TimeoutException;5import java.util.function.Supplier;6public class CompletableFutureAssertExample {7 public static void main(String[] args) throws TimeoutException, InterruptedException {8 Supplier<String> supplier = () -> {9 try {10 Thread.sleep(2000);

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CompletableFutureAssert

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1package com.acko;2import static org.assertj.core.api.Assertions.*;3import java.util.concurrent.CompletableFuture;4import java.util.concurrent.ExecutionException;5public class CompletableFutureAssertExample {6 public static void main(String[] args) throws InterruptedException, ExecutionException {7 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "hello");8 assertThat(future).isCompletedWithValue("hello");9 }10}11Java CompletableFuture API - getNow() method12Java CompletableFuture API - get() method13Java CompletableFuture API - join() method14Java CompletableFuture API - complete() method15Java CompletableFuture API - completeExceptionally() method16Java CompletableFuture API - cancel() method17Java CompletableFuture API - isCancelled() method18Java CompletableFuture API - isCompletedExceptionally() method19Java CompletableFuture API - isDone() method20Java CompletableFuture API - obtrudeValue() method21Java CompletableFuture API - obtrudeException() method22Java CompletableFuture API - thenApply() method23Java CompletableFuture API - thenAccept() method24Java CompletableFuture API - thenRun() method25Java CompletableFuture API - thenCompose() method26Java CompletableFuture API - thenCombine() method27Java CompletableFuture API - thenAcceptBoth() method28Java CompletableFuture API - runAfterBoth() method29Java CompletableFuture API - applyToEither() method30Java CompletableFuture API - acceptEither() method31Java CompletableFuture API - runAfterEither() method32Java CompletableFuture API - thenAcceptAsync() method33Java CompletableFuture API - thenApplyAsync() method34Java CompletableFuture API - thenRunAsync() method35Java CompletableFuture API - thenAcceptAsync() method36Java CompletableFuture API - thenApplyAsync() method37Java CompletableFuture API - thenRunAsync() method38Java CompletableFuture API - thenComposeAsync() method39Java CompletableFuture API - runAfterBothAsync() method40Java CompletableFuture API - thenAcceptBothAsync() method41Java CompletableFuture API - thenCombineAsync() method42Java CompletableFuture API - acceptEitherAsync() method43Java CompletableFuture API - applyToEitherAsync() method44Java CompletableFuture API - runAfterEitherAsync() method45Java CompletableFuture API - allOf() method46Java CompletableFuture API - anyOf() method47Java CompletableFuture API - newIncompleteFuture() method48Java CompletableFuture API - completedFuture() method49Java CompletableFuture API - completedStage() method50Java CompletableFuture API - failedFuture() method51Java CompletableFuture API - failedStage() method52 } catch (InterruptedException e) {53 e.printStackTrace();54 }55 return "Hello";56 };57 CompletableFuture<String> future = CompletableFuture.supplyAsync(supplier);58 CompletableFutureAssert.assertThat(future).isCompletedWithin(3000, TimeUnit.MILLISECONDS);59 }60}

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CompletableFutureAssert

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1import org.assertj.core.api.*;2import org.assertj.core.api.CompletableFutureAssert;3import java.util.concurrent.CompletableFuture;4public class 1 {5 public static void main(String[] args) {6 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {7 return "Hello World";8 });9 CompletableFutureAssert<String> assertFuture = new CompletableFutureAssert<>(future);10 assertFuture.isCompleted();11 }12}13 at org.assertj.core.api.AbstractCompletableFutureAssert.isNotCompleted(AbstractCompletableFutureAssert.java:93)14 at org.assertj.core.api.CompletableFutureAssert.isNotCompleted(CompletableFutureAssert.java:61)15 at 1.main(1.java:16)16import org.assertj.core.api.*;17import org.assertj.core.api.CompletableFutureAssert;18import java.util.concurrent.CompletableFuture;19public class 2 {20 public static void main(String[] args) {21 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {22 return "Hello World";23 });24 CompletableFutureAssert<String> assertFuture = new CompletableFutureAssert<>(future);25 assertFuture.isCompletedExceptionally();26 }27}28 at org.assertj.core.api.AbstractCompletableFutureAssert.isNotCompletedExceptionally(AbstractCompletableFutureAssert.java:108)29 at org.assertj.core.api.CompletableFutureAssert.isNotCompletedExceptionally(CompletableFutureAssert.java:66)30 at 2.main(2.java:16)31import org.assertj.core.api.*;32import org.assertj.core.api.CompletableFutureAssert;33import java.util.concurrent.CompletableFuture;34public class 3 {35 public static void main(String[] args) {36 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {

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