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Migrate to JUnit5

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This commit is contained in:
Artur Mogozov
2017-12-31 16:29:48 +09:00
parent a20e54d0a7
commit 6694d742a3
408 changed files with 2656 additions and 2165 deletions
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9
async-method-invocation/pom.xml
View File

@ -34,8 +34,13 @@
<artifactId>async-method-invocation</artifactId>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<scope>test</scope>
</dependency>
<dependency>

2
async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/AppTest.java
View File

@ -22,7 +22,7 @@
*/
package com.iluwatar.async.method.invocation;
import org.junit.Test;
import org.junit.jupiter.api.Test;
/**
*

410
async-method-invocation/src/test/java/com/iluwatar/async/method/invocation/ThreadAsyncExecutorTest.java
View File

@ -22,7 +22,7 @@
*/
package com.iluwatar.async.method.invocation;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.Matchers;
@ -30,8 +30,21 @@ import java.util.Optional;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import static java.time.Duration.ofMillis;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTimeout;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.verifyZeroInteractions;
import static org.mockito.Mockito.when;
import static org.mockito.internal.verification.VerificationModeFactory.times;
/**
@ -44,205 +57,217 @@ public class ThreadAsyncExecutorTest {
/**
* Test used to verify the happy path of {@link ThreadAsyncExecutor#startProcess(Callable)}
*/
@Test(timeout = 3000)
@Test
public void testSuccessfulTaskWithoutCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
assertTimeout(ofMillis(3000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenReturn(result);
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenReturn(result);
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
// Our task should only execute once ...
verify(task, times(1)).call();
// Our task should only execute once ...
verify(task, times(1)).call();
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
});
}
/**
* Test used to verify the happy path of {@link ThreadAsyncExecutor#startProcess(Callable, AsyncCallback)}
*/
@Test(timeout = 3000)
@Test
public void testSuccessfulTaskWithCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
assertTimeout(ofMillis(3000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenReturn(result);
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenReturn(result);
final AsyncCallback callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(task, callback);
assertNotNull(asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
final AsyncCallback callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(task, callback);
assertNotNull(asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
// Our task should only execute once ...
verify(task, times(1)).call();
// Our task should only execute once ...
verify(task, times(1)).call();
// ... same for the callback, we expect our object
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, times(1)).onComplete(eq(result), optionalCaptor.capture());
// ... same for the callback, we expect our object
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, times(1)).onComplete(eq(result), optionalCaptor.capture());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertFalse(optionalException.isPresent());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertFalse(optionalException.isPresent());
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
});
}
/**
* Test used to verify the happy path of {@link ThreadAsyncExecutor#startProcess(Callable)} when a task takes a while
* to execute
*/
@Test(timeout = 5000)
@Test
public void testLongRunningTaskWithoutCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
assertTimeout(ofMillis(5000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
});
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
// Our task should only execute once, but it can take a while ...
verify(task, timeout(3000).times(1)).call();
// Prevent timing issues, and wait until the result is available
asyncResult.await();
assertTrue(asyncResult.isCompleted());
verifyNoMoreInteractions(task);
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
});
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
// Our task should only execute once, but it can take a while ...
verify(task, timeout(3000).times(1)).call();
// Prevent timing issues, and wait until the result is available
asyncResult.await();
assertTrue(asyncResult.isCompleted());
verifyNoMoreInteractions(task);
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
}
/**
* Test used to verify the happy path of {@link ThreadAsyncExecutor#startProcess(Callable, AsyncCallback)} when a task
* takes a while to execute
*/
@Test(timeout = 5000)
@Test
public void testLongRunningTaskWithCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
assertTimeout(ofMillis(5000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
});
final AsyncCallback<Object> callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(task, callback);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
verifyZeroInteractions(callback);
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
// Our task should only execute once, but it can take a while ...
verify(task, timeout(3000).times(1)).call();
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, timeout(3000).times(1)).onComplete(eq(result), optionalCaptor.capture());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertFalse(optionalException.isPresent());
// Prevent timing issues, and wait until the result is available
asyncResult.await();
assertTrue(asyncResult.isCompleted());
verifyNoMoreInteractions(task, callback);
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
});
final AsyncCallback<Object> callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(task, callback);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
verifyZeroInteractions(callback);
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
// Our task should only execute once, but it can take a while ...
verify(task, timeout(3000).times(1)).call();
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, timeout(3000).times(1)).onComplete(eq(result), optionalCaptor.capture());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertFalse(optionalException.isPresent());
// Prevent timing issues, and wait until the result is available
asyncResult.await();
assertTrue(asyncResult.isCompleted());
verifyNoMoreInteractions(task, callback);
// ... and the result should be exactly the same object
assertSame(result, asyncResult.getValue());
}
/**
* Test used to verify the happy path of {@link ThreadAsyncExecutor#startProcess(Callable)} when a task takes a while
* to execute, while waiting on the result using {@link ThreadAsyncExecutor#endProcess(AsyncResult)}
*/
@Test(timeout = 5000)
@Test
public void testEndProcess() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
assertTimeout(ofMillis(5000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
final Object result = new Object();
final Callable<Object> task = mock(Callable.class);
when(task.call()).thenAnswer(i -> {
Thread.sleep(1500);
return result;
});
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
assertSame(result, executor.endProcess(asyncResult));
verify(task, times(1)).call();
assertTrue(asyncResult.isCompleted());
// Calling end process a second time while already finished should give the same result
assertSame(result, executor.endProcess(asyncResult));
verifyNoMoreInteractions(task);
});
final AsyncResult<Object> asyncResult = executor.startProcess(task);
assertNotNull(asyncResult);
assertFalse(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected IllegalStateException when calling AsyncResult#getValue on a non-completed task");
} catch (IllegalStateException e) {
assertNotNull(e.getMessage());
}
assertSame(result, executor.endProcess(asyncResult));
verify(task, times(1)).call();
assertTrue(asyncResult.isCompleted());
// Calling end process a second time while already finished should give the same result
assertSame(result, executor.endProcess(asyncResult));
verifyNoMoreInteractions(task);
}
/**
* Test used to verify the behaviour of {@link ThreadAsyncExecutor#startProcess(Callable)} when the callable is 'null'
*/
@Test(timeout = 3000)
@Test
public void testNullTask() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncResult<Object> asyncResult = executor.startProcess(null);
assertTimeout(ofMillis(3000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncResult<Object> asyncResult = executor.startProcess(null);
assertNotNull("The AsyncResult should not be 'null', even though the task was 'null'.", asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
assertNotNull(asyncResult, "The AsyncResult should not be 'null', even though the task was 'null'.");
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
});
}
@ -250,36 +275,38 @@ public class ThreadAsyncExecutorTest {
* Test used to verify the behaviour of {@link ThreadAsyncExecutor#startProcess(Callable, AsyncCallback)} when the
* callable is 'null', but the asynchronous callback is provided
*/
@Test(timeout = 3000)
@Test
public void testNullTaskWithCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncCallback<Object> callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(null, callback);
assertTimeout(ofMillis(3000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncCallback<Object> callback = mock(AsyncCallback.class);
final AsyncResult<Object> asyncResult = executor.startProcess(null, callback);
assertNotNull("The AsyncResult should not be 'null', even though the task was 'null'.", asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
assertNotNull(asyncResult, "The AsyncResult should not be 'null', even though the task was 'null'.");
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, times(1)).onComplete(Matchers.isNull(), optionalCaptor.capture());
final ArgumentCaptor<Optional<Exception>> optionalCaptor = ArgumentCaptor.forClass((Class) Optional.class);
verify(callback, times(1)).onComplete(Matchers.isNull(), optionalCaptor.capture());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertTrue(optionalException.isPresent());
final Optional<Exception> optionalException = optionalCaptor.getValue();
assertNotNull(optionalException);
assertTrue(optionalException.isPresent());
final Exception exception = optionalException.get();
assertNotNull(exception);
assertEquals(NullPointerException.class, exception.getClass());
final Exception exception = optionalException.get();
assertNotNull(exception);
assertEquals(NullPointerException.class, exception.getClass());
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
});
}
@ -287,24 +314,29 @@ public class ThreadAsyncExecutorTest {
* Test used to verify the behaviour of {@link ThreadAsyncExecutor#startProcess(Callable, AsyncCallback)} when both
* the callable and the asynchronous callback are 'null'
*/
@Test(timeout = 3000)
@Test
public void testNullTaskWithNullCallback() throws Exception {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncResult<Object> asyncResult = executor.startProcess(null, null);
assertTimeout(ofMillis(3000), () -> {
// Instantiate a new executor and start a new 'null' task ...
final ThreadAsyncExecutor executor = new ThreadAsyncExecutor();
final AsyncResult<Object> asyncResult = executor.startProcess(null, null);
assertNotNull("The AsyncResult should not be 'null', even though the task and callback were 'null'.", asyncResult);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
assertNotNull(
asyncResult,
"The AsyncResult should not be 'null', even though the task and callback were 'null'."
);
asyncResult.await(); // Prevent timing issues, and wait until the result is available
assertTrue(asyncResult.isCompleted());
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
try {
asyncResult.getValue();
fail("Expected ExecutionException with NPE as cause");
} catch (final ExecutionException e) {
assertNotNull(e.getMessage());
assertNotNull(e.getCause());
assertEquals(NullPointerException.class, e.getCause().getClass());
}
});
}