Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

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

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

Source:FutureAssert.java

...17import org.hamcrest.Matcher;18/**19 * @author Yoann Rodiere20 */21public class FutureAssert<T> extends AbstractObjectAssert<FutureAssert<T>, Future<T>> {22	public static <T> FutureAssert<T> assertThat(Future<T> future) {23		return new FutureAssert<>( future );24	}25	protected FutureAssert(Future<T> actual) {26		super( actual, FutureAssert.class );27	}28	public FutureAssert<T> isPending() {29		try {30			Object result = getNow();31			failWithMessage( "future <%s> should be pending, but instead it succeeded with result <%s>", actual, result );32		}33		catch (TimeoutException e) {34			// All's good35		}36		catch (CancellationException e) {37			failWithCauseAndMessage( e, "future <%s> should be pending, but instead it's been cancelled", actual, e );38		}39		catch (ExecutionException e) {40			failWithCauseAndMessage( e, "future <%s> should be pending, but instead it failed with exception: %s", actual, e );41		}42		return this;43	}44	public FutureAssert<T> isSuccessful() {45		return isSuccessful( value -> {46		} );47	}48	public FutureAssert<T> isSuccessful(T expectedValue) {49		return isSuccessful( value -> Assertions.assertThat( expectedValue ).isEqualTo( expectedValue ) );50	}51	public FutureAssert<T> isSuccessful(Consumer<T> valueAssertion) {52		try {53			T result = getNow();54			try {55				valueAssertion.accept( result );56			}57			catch (AssertionError e2) {58				failWithCauseAndMessage( e2, "future <%s> succeeded as expected, but the result is wrong: %s", actual, e2 );59			}60		}61		catch (TimeoutException e) {62			failWithMessage( "future <%s> should have succeeded, but instead it's still pending", actual );63		}64		catch (CancellationException e) {65			failWithCauseAndMessage( e, "future <%s> should have succeeded, but instead it's been cancelled", actual, e );66		}67		catch (ExecutionException e) {68			failWithCauseAndMessage( e, "future <%s> should have succeeded, but instead it failed with exception: %s", actual, e );69		}70		return this;71	}72	public FutureAssert<T> isFailed() {73		return isFailed( throwable -> { } );74	}75	public FutureAssert<T> isFailed(Throwable expectedThrowable) {76		return isFailed( throwable -> Assertions.assertThat( throwable ).isEqualTo( expectedThrowable ) );77	}78	public FutureAssert<T> isFailed(Matcher<? super Throwable> exceptionMatcher) {79		return isFailed( throwable -> Assert.assertThat( throwable, exceptionMatcher ) );80	}81	public FutureAssert<T> isFailed(Consumer<Throwable> exceptionAssertion) {82		Object result;83		try {84			result = getNow();85			failWithMessage( "future <%s> should have failed, but instead it succeeded with result <%s>", actual, result );86		}87		catch (TimeoutException e) {88			failWithMessage( "future <%s> should have failed, but instead it's still pending", actual );89		}90		catch (CancellationException e) {91			failWithCauseAndMessage( e, "future <%s> should have failed, but instead it's been cancelled", actual, e );92		}93		catch (ExecutionException e) {94			try {95				exceptionAssertion.accept( e.getCause() );...

Source:FutureAssertBaseTest.java

...18import java.util.concurrent.Future;19import org.assertj.core.internal.Futures;20import org.assertj.core.test.ExpectedException;21import org.junit.Rule;22public abstract class FutureAssertBaseTest extends BaseTestTemplate<FutureAssert<String>, Future<String>> {23  @Rule24  public ExpectedException thrown = none();25  protected Futures futures;26  @Override27  protected FutureAssert<String> create_assertions() {28    return new FutureAssert<>(ForkJoinTask.adapt(new Callable<String>() {29      @Override30      public String call() throws Exception {31        return "string";32      }33    }));34  }35  @Override36  protected void inject_internal_objects() {37    super.inject_internal_objects();38    futures = mock(Futures.class);39    assertions.futures = futures;40  }41}...

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.FutureAssert;2import org.assertj.core.api.Assertions;3import java.util.concurrent.Future;4import java.util.concurrent.Callable;5import java.util.concurrent.Executors;6import java.util.concurrent.ExecutorService;7import java.util.concurrent.ExecutionException;8import java.util.concurrent.TimeUnit;9import java.util.concurrent.TimeoutException;10class MyCallable implements Callable<String> {11   public String call() throws Exception {12      return "Hello World!";13   }14}15public class Test {16   public static void main(String[] args) throws InterruptedException, ExecutionException, TimeoutException {17      ExecutorService executor = Executors.newSingleThreadExecutor();18      Callable<String> callable = new MyCallable();19      Future<String> future = executor.submit(callable);20      FutureAssert<String> futureAssert = Assertions.assertThat(future);21      futureAssert.isDone();22      futureAssert.isNotCancelled();23      futureAssert.isNotNull();24      futureAssert.hasValueSatisfying((value) -> {25         System.out.println(value);26      });27      executor.shutdown();28      executor.awaitTermination(1, TimeUnit.SECONDS);29   }30}

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.FutureAssert;2import org.junit.Test;3import java.util.concurrent.CompletableFuture;4import java.util.concurrent.ExecutionException;5import static org.assertj.core.api.Assertions.assertThat;6public class FutureAssertTest {7    public void test() throws ExecutionException, InterruptedException {8        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello");9        FutureAssert<String> futureAssert = assertThat(future);10        futureAssert.isCompleted();11        futureAssert.isCompletedWithValue("Hello");12    }13}

FutureAssert

Using AI Code Generation

1import java.util.concurrent.CompletableFuture;2import java.util.concurrent.ExecutionException;3import java.util.concurrent.TimeUnit;4import java.util.concurrent.TimeoutException;5import org.assertj.core.api.FutureAssert;6public class FutureAssertExample {7    public static void main(String[] args) throws InterruptedException, ExecutionException, TimeoutException {8        CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");9        FutureAssert.assertThat(future).isCompleted();10        System.out.println(future.get(1, TimeUnit.SECONDS));11    }12}

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.FutureAssert;2import org.assertj.core.api.Assertions;3import java.util.concurrent.Future;4import java.util.concurrent.TimeUnit;5import java.util.concurrent.Executors;6import java.util.concurrent.ExecutorService;7import java.util.concurrent.Callable;8public class 1 {9    public static void main(String[] args) {10        ExecutorService executor = Executors.newSingleThreadExecutor();11        Future<String> future = executor.submit(new Callable<String>(){12            public String call() {13                try {14                    TimeUnit.SECONDS.sleep(1);15                    return "Hello";16                } catch (InterruptedException e) {17                    throw new IllegalStateException("task interrupted", e);18                }19            }20        });21        FutureAssert<String> futureAssert = Assertions.assertThat(future);22        futureAssert.isDone();23        executor.shutdown();24    }25}26at org.assertj.core.api.AbstractFutureAssert.isDone(AbstractFutureAssert.java:68)27at 1.main(1.java:25)

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.FutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.ExecutionException;4public class 1 {5  public static void main(String[] args) throws ExecutionException, InterruptedException {6    CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");7    FutureAssert.assertThat(future).isCompletedWithValue("Hello");8  }9}10	at org.assertj.core.api.FutureAssert.isCompletedWithValue(FutureAssert.java:99)11	at 1.main(1.java:8)12Related Posts: Java - CompletableFuture - get() method13Java - CompletableFuture - get(long timeout, TimeUnit unit) method14Java - CompletableFuture - getNow(T valueIfAbsent) method15Java - CompletableFuture - isDone() method16Java - CompletableFuture - isCancelled() method17Java - CompletableFuture - cancel(boolean mayInterruptIfRunning) method18Java - CompletableFuture - complete(T value) method19Java - CompletableFuture - completeExceptionally(Throwable ex) method20Java - CompletableFuture - obtrudeValue(T value) method21Java - CompletableFuture - obtrudeException(Throwable ex) method

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.FutureAssert;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.TimeUnit;4import java.util.concurrent.TimeoutException;5public class FutureAssertExample {6    public static void main(String[] args) {7        CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");8        FutureAssert<String> futureAssert = new FutureAssert<>(future);9        futureAssert.isCompletedWithValue("Hello");10    }11}12import org.assertj.core.api.FutureAssert;13import java.util.concurrent.CompletableFuture;14import java.util.concurrent.TimeUnit;15import java.util.concurrent.TimeoutException;16public class FutureAssertExample {17    public static void main(String[] args) {18        CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");19        FutureAssert<String> futureAssert = new FutureAssert<>(future);20        futureAssert.isCompleted();21    }22}23import org.assertj.core.api.FutureAssert;24import java.util.concurrent.CompletableFuture;25import java.util.concurrent.TimeUnit;26import java.util.concurrent.TimeoutException;27public class FutureAssertExample {28    public static void main(String[] args) {29        CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> "Hello");30        FutureAssert<String> futureAssert = new FutureAssert<>(future);31        futureAssert.isCompletedWithValueMatching(s -> s.equals("Hello"));32    }33}

FutureAssert

Using AI Code Generation

1package org.example;2import org.assertj.core.api.FutureAssert;3import org.junit.Test;4import java.util.concurrent.CompletableFuture;5import java.util.concurrent.TimeUnit;6public class Test1 {7    public void test1() {8        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");9        FutureAssert.assertThat(future).isCompletedWithValue("Hello World");10    }11    public void test2() {12        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");13        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone();14    }15    public void test3() {16        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");17        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted();18    }19    public void test4() {20        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");21        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted().isNotCancelled();22    }23    public void test5() {24        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");25        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted().isNotCancelled().hasNotFailed();26    }27    public void test6() {28        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");29        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted().isNotCancelled().hasNotFailed().isNotCancelled();30    }31    public void test7() {32        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");33        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted().isNotCancelled().hasNotFailed().isNotCancelled().isNotCancelled();34    }35    public void test8() {36        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");37        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted().isNotCancelled().hasNotFailed().isNotCancelled().isNotCancelled().isNotCancelled();38    }39    public void test9() {40        CompletableFuture<String> future = CompletableFuture.completedFuture("Hello World");41        FutureAssert.assertThat(future).isCompletedWithValue("Hello World").isDone().isCompleted

FutureAssert

Using AI Code Generation

1package org.example;2import java.util.concurrent.CompletableFuture;3import java.util.concurrent.TimeUnit;4import org.assertj.core.api.Assertions;5import org.junit.Test;6public class FutureAssertTest {7	public void test() throws InterruptedException {8		CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {9			try {10				TimeUnit.SECONDS.sleep(2);11			} catch (InterruptedException e) {12				throw new IllegalStateException(e);13			}14			return "Result of the asynchronous computation";15		});16		Assertions.assertThat(future).isDone();17	}18}19In this tutorial, we have learned about the CompletableFuture class of Java 8. We have also seen how to create a CompletableFuture using different methods. We have also seen how to use the thenApply() method to apply a function to the result of a CompletableFuture. We have also seen how to use the thenAccept() method to apply a consumer to the result of a CompletableFuture. We have also seen how to use the thenRun() method to run a Runnable after a CompletableFuture completes. We have also seen how to use the thenCombine() method to combine the results of two CompletableFutures. We have also seen how to use the thenCompose() method to compose two CompletableFutures. We have also seen how to use the allOf() method to create a CompletableFuture that completes when all of the CompletableFutures complete. We have also seen how to use the anyOf() method to create a CompletableFuture that completes when any of the CompletableFutures complete. We have also seen how to use the exceptionally() method to handle exceptions in a CompletableFuture. We have also seen how to use the completeExceptionally() method to complete a CompletableFuture exceptionally. We have also seen how to use the isCompletedExceptionally() method to check if a CompletableFuture completes exceptionally. We have also seen how to use the getNow() method to get the result of a CompletableFuture without blocking. We have also seen how to use the complete() method to complete a CompletableFuture. We have also seen how to use the cancel() method to cancel a CompletableFuture. We have also seen how to use the obtrudeValue() method to forcibly set the value of a CompletableFuture. We have also seen how to

FutureAssert

Using AI Code Generation

1import org.assertj.core.api.*;2import org.junit.Test;3import java.util.concurrent.*;4public class FutureAssertTest {5    public void testFutureAssert() {6        FutureAssert.assertThat(CompletableFuture.completedFuture(1)).isDone();7    }8}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.