org.mockito.Mockito.doThrow()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中org.mockito.Mockito.doThrow()方法的一些代码示例，展示了Mockito.doThrow()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Mockito.doThrow()方法的具体详情如下：
包路径：org.mockito.Mockito
类名称：Mockito
方法名：doThrow

Mockito.doThrow介绍

[英]Use doThrow() when you want to stub the void method to throw exception of specified class.

A new exception instance will be created for each method invocation.

Stubbing voids requires different approach from Mockito#when(Object) because the compiler does not like void methods inside brackets...

Example:

  1. doThrow(RuntimeException.class).when(mock).someVoidMethod();

[中]如果要存根void方法以引发指定类的异常，请使用doThrow()。
将为每个方法调用创建一个新的异常实例。
stubing void需要与Mockito#when（Object）不同的方法，因为编译器不喜欢括号内的void方法。。。
例子：

  1. doThrow(RuntimeException.class).when(mock).someVoidMethod();

代码示例

代码示例来源：origin: google/guava

  1. private void setupCloseable(boolean shouldThrow) throws IOException {
  2.  mockCloseable = mock(Closeable.class);
  3.  if (shouldThrow) {
  4.   doThrow(new IOException("This should only appear in the logs. It should not be rethrown."))
  5.     .when(mockCloseable)
  6.     .close();
  7.  }
  8. }

代码示例来源：origin: bumptech/glide

  1. @Test
  2. public void testHandlesExceptionOnClose() throws Exception {
  3.  fetcher.loadData(Priority.NORMAL, callback);
  4.  doThrow(new IOException("Test")).when(fetcher.closeable).close();
  5.  fetcher.cleanup();
  6.  verify(fetcher.closeable).close();
  7. }

代码示例来源：origin: gocd/gocd

  1. @Test
  2. public void shouldNotInitializeServerIfSettingIsTurnedOff() throws Exception {
  3.   when(systemEnvironment.getAgentStatusEnabled()).thenReturn(true);
  4.   AgentStatusHttpd spy = spy(agentStatusHttpd);
  5.   doThrow(new RuntimeException("This is not expected to be invoked")).when(spy).start();
  6.   spy.init();
  7. }

代码示例来源：origin: neo4j/neo4j

  1. private NativeIndexPopulator<GenericKey,NativeIndexValue> failOnDropNativeIndexPopulator()
  2. {
  3.   NativeIndexPopulator<GenericKey,NativeIndexValue> populator = mockNativeIndexPopulator();
  4.   doThrow( CustomFailure.class ).when( populator ).drop();
  5.   return populator;
  6. }

代码示例来源：origin: gocd/gocd

  1. @Test
  2.   public void shouldAllExceptionsExceptionQuietly() throws Exception {
  3.     doThrow(new IOException()).when(zipUtil).unzip(DownloadableFile.AGENT_PLUGINS.getLocalFile(), new File(SystemEnvironment.PLUGINS_PATH));
  4.     try {
  5.       doThrow(new RuntimeException("message")).when(pluginJarLocationMonitor).initialize();
  6.       agentPluginsInitializer.onApplicationEvent(null);
  7.     } catch (Exception e) {
  8.       fail("should have handled IOException");
  9.     }
  10.   }
  11. }

代码示例来源：origin: bumptech/glide

  1. @Test(expected = IOException.class)
  2. public void testCloseThrowsIfWrappedStreamThrowsOnClose() throws IOException {
  3.  InputStream wrapped = mock(InputStream.class);
  4.  doThrow(new IOException()).when(wrapped).close();
  5.  stream = new RecyclableBufferedInputStream(wrapped, byteArrayPool);
  6.  stream.close();
  7. }

代码示例来源：origin: google/guava

  1. private void setupFlushable(boolean shouldThrowOnFlush) throws IOException {
  2.  mockFlushable = mock(Flushable.class);
  3.  if (shouldThrowOnFlush) {
  4.   doThrow(
  5.       new IOException(
  6.         "This should only appear in the " + "logs. It should not be rethrown."))
  7.     .when(mockFlushable)
  8.     .flush();
  9.  }
  10. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. void shouldGiveAClearErrorIfTheArchiveAlreadyExists() throws Exception
  3. {
  4.   doThrow( new FileAlreadyExistsException( "the-archive-path" ) ).when( dumper ).dump( any(), any(), any(), any() );
  5.   CommandFailed commandFailed = assertThrows( CommandFailed.class, () -> execute( "foo.db" ) );
  6.   assertEquals( "archive already exists: the-archive-path", commandFailed.getMessage() );
  7. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void userExceptionPropagates() throws Throwable {
  3.   doThrow(new Boom()).when(statement).evaluate();
  4.   exception.expect(Boom.class);
  5.   new SpringFailOnTimeout(statement, 1).evaluate();
  6. }

代码示例来源：origin: SonarSource/sonarqube

  1. @Test
  2. public void should_not_fail_on_statement_errors() throws SQLException {
  3.  Statement statement = mock(Statement.class);
  4.  doThrow(new SQLException()).when(statement).close();
  5.  DatabaseUtils.closeQuietly(statement);
  6.  // no failure
  7.  verify(statement).close(); // just to be sure
  8. }

代码示例来源：origin: AsyncHttpClient/async-http-client

  1. @Test
  2. public void testOnBodyPartReceivedWithResumableListenerThrowsException() throws Exception {
  3.  ResumableAsyncHandler handler = new ResumableAsyncHandler();
  4.  ResumableListener resumableListener = mock(ResumableListener.class);
  5.  doThrow(new IOException()).when(resumableListener).onBytesReceived(any());
  6.  handler.setResumableListener(resumableListener);
  7.  HttpResponseBodyPart bodyPart = mock(HttpResponseBodyPart.class);
  8.  State state = handler.onBodyPartReceived(bodyPart);
  9.  assertEquals(state, AsyncHandler.State.ABORT,
  10.      "State should be ABORT if the resumableListener threw an exception in onBodyPartReceived");
  11. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. void shouldGiveAClearMessageIfTheArchiveDoesntExist() throws IOException, IncorrectFormat
  3. {
  4.   doThrow( new NoSuchFileException( archive.toString() ) ).when( loader ).load( any(), any(), any() );
  5.   CommandFailed commandFailed = assertThrows( CommandFailed.class, () -> execute( null ) );
  6.   assertEquals( "archive does not exist: " + archive, commandFailed.getMessage() );
  7. }

代码示例来源：origin: gocd/gocd

  1. @Test
  2. public void shouldReturnErrorResponseWhenFailedToUploadFile() throws Exception {
  3.   when(systemEnvironment.get(PLUGIN_EXTERNAL_PROVIDED_PATH)).thenReturn(EXTERNAL_DIRECTORY_PATH);
  4.   doThrow(new IOException()).when(goFileSystem).copyFile(any(File.class), any(File.class));
  5.   PluginUploadResponse response = pluginWriter.addPlugin(srcFile, srcFile.getName());
  6.   assertFalse(response.isSuccess());
  7.   assertTrue(response.errors().containsKey(HttpStatus.SC_INTERNAL_SERVER_ERROR));
  8. }

代码示例来源：origin: SonarSource/sonarqube

  1. @Test
  2. public void should_not_fail_on_connection_errors() throws SQLException {
  3.  Connection connection = mock(Connection.class);
  4.  doThrow(new SQLException()).when(connection).close();
  5.  DatabaseUtils.closeQuietly(connection);
  6.  // no failure
  7.  verify(connection).close(); // just to be sure
  8. }

代码示例来源：origin: neo4j/neo4j

  1. private static TransactionToApply newTransactionThatFailsWith( Exception error ) throws IOException
  2. {
  3.   TransactionRepresentation transaction = mock( TransactionRepresentation.class );
  4.   when( transaction.additionalHeader() ).thenReturn( new byte[0] );
  5.   // allow to build validated index updates but fail on actual tx application
  6.   doThrow( error ).when( transaction ).accept( any() );
  7.   long txId = ThreadLocalRandom.current().nextLong( 0, 1000 );
  8.   TransactionToApply txToApply = new TransactionToApply( transaction );
  9.   FakeCommitment commitment = new FakeCommitment( txId, mock( TransactionIdStore.class ) );
  10.   commitment.setHasExplicitIndexChanges( false );
  11.   txToApply.commitment( commitment, txId );
  12.   return txToApply;
  13. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. void shouldWrapIOExceptionsCarefullyBecauseCriticalInformationIsOftenEncodedInTheirNameButMissingFromTheirMessage()
  3.     throws IOException, IncorrectFormat
  4. {
  5.   doThrow( new FileSystemException( "the-message" ) ).when( loader ).load( any(), any(), any() );
  6.   CommandFailed commandFailed = assertThrows( CommandFailed.class, () -> execute( null ) );
  7.   assertEquals( "unable to load database: FileSystemException: the-message", commandFailed.getMessage() );
  8. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void closeAllAndRethrowException() throws Exception
  3. {
  4.   doThrow( new IOException( "Faulty closable" ) ).when( faultyClosable ).close();
  5.   expectedException.expect( IOException.class );
  6.   expectedException.expectMessage( "Exception closing multiple resources" );
  7.   expectedException.expect( new NestedThrowableMatcher( IOException.class ) );
  8.   IOUtils.closeAll( goodClosable1, faultyClosable, goodClosable2 );
  9. }

代码示例来源：origin: SonarSource/sonarqube

  1. @Test
  2. public void should_not_fail_on_resulset_errors() throws SQLException {
  3.  ResultSet rs = mock(ResultSet.class);
  4.  doThrow(new SQLException()).when(rs).close();
  5.  DatabaseUtils.closeQuietly(rs);
  6.  // no failure
  7.  verify(rs).close(); // just to be sure
  8. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. void shouldMoveToFailedOnRun_fail() throws Throwable
  3. {
  4.   BoltStateMachineV3 machine = getBoltStateMachineInTxReadyState();
  5.   // When
  6.   BoltResponseHandler handler = mock( BoltResponseHandler.class );
  7.   doThrow( new RuntimeException( "Error!" ) ).when( handler ).onRecords( any(), anyBoolean() );
  8.   machine.process( new RunMessage( "A cypher query" ), handler );
  9.   // Then
  10.   assertThat( machine.state(), instanceOf( FailedState.class ) );
  11. }

代码示例来源：origin: gocd/gocd

  1. @Test
  2.   public void shouldContinueWithBuildingPluginInfoIfPluginSettingsIsNotProvidedByPlugin() {
  3.     GoPluginDescriptor descriptor = new GoPluginDescriptor("plugin1", null, null, null, null, false);
  4.     doThrow(new RuntimeException("foo")).when(extension).getPluginSettingsConfiguration("plugin1");
  6.     ArtifactPluginInfo artifactPluginInfo = new ArtifactPluginInfoBuilder(extension).pluginInfoFor(descriptor);
  8.     assertThat(artifactPluginInfo.getDescriptor(), is(descriptor));
  9.     assertThat(artifactPluginInfo.getExtensionName(), is(PluginConstants.ARTIFACT_EXTENSION));
  10.   }
  11. }

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