org.hamcrest.core.Is类的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中org.hamcrest.core.Is类的一些代码示例，展示了Is类的具体用法。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。Is类的具体详情如下：
包路径：org.hamcrest.core.Is
类名称：Is

Is介绍

[英]Decorates another Matcher, retaining the behaviour but allowing tests to be slightly more expressive. For example: assertThat(cheese, equalTo(smelly)) vs. assertThat(cheese, is(equalTo(smelly)))
[中]装饰另一个匹配器，保留行为，但允许测试稍微更具表现力。例如：assertThat（奶酪，equalTo（臭））与assertThat（奶酪，is（equalTo（臭）））

代码示例

代码示例来源：origin: apache/flink

@Test
public void testOpenWithConfigurableReader() throws Exception {
  ConfigurableDummyRecordReader recordReader = mock(ConfigurableDummyRecordReader.class);
  DummyInputFormat inputFormat = mock(DummyInputFormat.class);
  when(inputFormat.getRecordReader(any(InputSplit.class), any(JobConf.class), any(Reporter.class))).thenReturn(recordReader);
  HadoopInputFormat<String, Long> hadoopInputFormat = new HadoopInputFormat<>(inputFormat, String.class, Long.class, new JobConf());
  hadoopInputFormat.open(getHadoopInputSplit());
  verify(inputFormat, times(1)).getRecordReader(any(InputSplit.class), any(JobConf.class), any(Reporter.class));
  verify(recordReader, times(1)).setConf(any(JobConf.class));
  verify(recordReader, times(1)).createKey();
  verify(recordReader, times(1)).createValue();
  assertThat(hadoopInputFormat.fetched, is(false));
}

代码示例来源：origin: google/j2objc

/**
 * A shortcut to the frequently used <code>is(instanceOf(SomeClass.class))</code>.
 * <p/>
 * For example:
 * <pre>assertThat(cheese, isA(Cheddar.class))</pre>
 * instead of:
 * <pre>assertThat(cheese, is(instanceOf(Cheddar.class)))</pre>
 */
public static <T> org.hamcrest.Matcher<T> isA(java.lang.Class<T> type) {
 return org.hamcrest.core.Is.<T>isA(type);
}

代码示例来源：origin: hamcrest/JavaHamcrest

/**
 * Decorates another Matcher, retaining its behaviour, but allowing tests
 * to be slightly more expressive.
 * For example:
 * <pre>assertThat(cheese, is(equalTo(smelly)))</pre>
 * instead of:
 * <pre>assertThat(cheese, equalTo(smelly))</pre>
 * 
 */
public static <T> Matcher<T> is(Matcher<T> matcher) {
  return new Is<>(matcher);
}

代码示例来源：origin: ModeShape/modeshape

@Test
public void shouldDelegateGetSegmentToParentIfIndexNotEqualToSizeMinusOne() {
  Path.Segment segment = mock(Path.Segment.class);
  parent = mock(Path.class);
  when(parent.size()).thenReturn(10);
  path = new ChildPath(parent, segment("d"));
  when(parent.getSegment(anyInt())).thenReturn(segment);
  for (int i = 0; i < path.size() - 1; ++i) {
    assertThat(path.getSegment(i), is(sameInstance(segment)));
  }
  verify(parent, times(parent.size())).getSegment(anyInt());
}

代码示例来源：origin: ehcache/ehcache3

@Test
public void testReplace2Args_doesNotReplace() throws Exception {
 when(numberAuthoritativeTier.replace(eq(1), eq("one"))).thenReturn(null);
 TieredStore<Number, CharSequence> tieredStore = new TieredStore<>(numberCachingTier, numberAuthoritativeTier);
 assertThat(tieredStore.replace(1, "one"), is(nullValue()));
 verify(numberCachingTier).invalidate(any(Number.class));
 verify(numberAuthoritativeTier, times(1)).replace(eq(1), eq("one"));
}

代码示例来源：origin: apache/flink

@Test
public void testFetchNextRecordReaderHasNewValue() throws Exception {
  DummyRecordReader recordReader = mock(DummyRecordReader.class);
  when(recordReader.nextKeyValue()).thenReturn(true);
  HadoopInputFormat<String, Long> hadoopInputFormat = setupHadoopInputFormat(new DummyInputFormat(), Job.getInstance(), recordReader);
  hadoopInputFormat.fetchNext();
  assertThat(hadoopInputFormat.fetched, is(true));
  assertThat(hadoopInputFormat.hasNext, is(true));
}

代码示例来源：origin: apache/hive

@Test
public void setupInternalStateOnObjectCreation() throws IOException, TezException {
 when(dagStatus.getState()).thenReturn(DAGStatus.State.RUNNING);
 when(dagClient.getVertexStatus(eq(MAPPER), anySet())).thenReturn(succeeded);
 when(dagClient.getVertexStatus(eq(REDUCER), anySet())).thenReturn(running);
 TezProgressMonitor monitor =
   new TezProgressMonitor(dagClient, dagStatus, new ArrayList<BaseWork>(), progressMap(), console,
     Long.MAX_VALUE);
 verify(dagClient).getVertexStatus(eq(MAPPER), isNull(Set.class));
 verify(dagClient).getVertexStatus(eq(REDUCER), isNull(Set.class));
 verifyNoMoreInteractions(dagClient);
 assertThat(monitor.vertexStatusMap.keySet(), hasItems(MAPPER, REDUCER));
 assertThat(monitor.vertexStatusMap.get(MAPPER), is(sameInstance(succeeded)));
 assertThat(monitor.vertexStatusMap.get(REDUCER), is(sameInstance(running)));
 assertThat(monitor.progressCountsMap.keySet(), hasItems(MAPPER, REDUCER));
 TezProgressMonitor.VertexProgress expectedMapperState =
   new TezProgressMonitor.VertexProgress(2, 1, 3, 4, 5, DAGStatus.State.RUNNING);
 assertThat(monitor.progressCountsMap.get(MAPPER), is(equalTo(expectedMapperState)));
 TezProgressMonitor.VertexProgress expectedReducerState =
   new TezProgressMonitor.VertexProgress(3, 2, 1, 0, 1, DAGStatus.State.RUNNING);
 assertThat(monitor.progressCountsMap.get(REDUCER), is(equalTo(expectedReducerState)));
}

代码示例来源：origin: neo4j/neo4j

@Test
void shouldNotifyListenerOnRotationErrorDuringJobExecution() throws Exception
{
  RotationListener rotationListener = mock( RotationListener.class );
  Executor executor = mock( Executor.class );
  RotatingFileOutputStreamSupplier supplier = new RotatingFileOutputStreamSupplier( fileSystem, logFile, 10, 0,
      10, executor, rotationListener );
  OutputStream outputStream = supplier.get();
  RejectedExecutionException exception = new RejectedExecutionException( "text exception" );
  doThrow( exception ).when( executor ).execute( any( Runnable.class ) );
  write( supplier, "A string longer than 10 bytes" );
  assertThat( supplier.get(), is( outputStream ) );
  verify( rotationListener ).rotationError( exception, outputStream );
}

代码示例来源：origin: apache/flink

@Test
public void testFetchNextRecordReaderThrowsException() throws Exception {
  DummyRecordReader recordReader = mock(DummyRecordReader.class);
  when(recordReader.nextKeyValue()).thenThrow(new InterruptedException());
  HadoopInputFormat<String, Long> hadoopInputFormat = setupHadoopInputFormat(new DummyInputFormat(), Job.getInstance(), recordReader);
  exception.expect(IOException.class);
  hadoopInputFormat.fetchNext();
  assertThat(hadoopInputFormat.hasNext, is(true));
}

代码示例来源：origin: dreamhead/moco

@Test
  public void should_extract_http_method() {
    when(request.getMethod()).thenReturn(HttpMethod.GET);
    assertThat(extractor.extract(request).get(), is(HttpMethod.GET.name()));
  }
}

代码示例来源：origin: org.mule.runtime/mule-core-tests

@Test
public void setsExpressionPayload() throws MuleException {
 setPayloadMessageProcessor.setValue(EXPRESSION);
 when(expressionManager.isExpression(EXPRESSION)).thenReturn(true);
 setPayloadMessageProcessor.initialise();
 TypedValue typedValue = new TypedValue(PLAIN_TEXT, DataType.STRING);
 when(expressionManager.evaluate(EXPRESSION, testEvent())).thenReturn(typedValue);
 when(expressionManager.evaluate(eq(EXPRESSION), eq(testEvent()), any(CoreEvent.Builder.class), eq(null)))
   .thenReturn(typedValue);
 CoreEvent response = setPayloadMessageProcessor.process(testEvent());
 assertThat(response.getMessage().getPayload().getValue(), is(PLAIN_TEXT));
}

代码示例来源：origin: ehcache/ehcache3

@Test
public void testPutIfAbsent_whenAbsent() throws Exception {
 TieredStore<Number, CharSequence> tieredStore = new TieredStore<>(numberCachingTier, numberAuthoritativeTier);
 assertThat(tieredStore.putIfAbsent(1, "one", b -> {}), is(nullValue()));
 verify(numberCachingTier, times(1)).invalidate(eq(1));
 verify(numberAuthoritativeTier, times(1)).putIfAbsent(eq(1), eq("one"), any());
}

代码示例来源：origin: HotelsDotCom/styx

@Test
public void checksWhetherHeadersExist() {
  assertThat(headers.contains("header1"), is(true));
  assertThat(headers.contains("header2"), is(true));
  assertThat(headers.contains("nonExistent"), is(false));
}

代码示例来源：origin: spotify/helios

assumeThat(dockerClient.version(), is(execCompatibleDockerVersion()));
verify(registrar, never()).register(any(ServiceRegistration.class));
dockerClient.close();
verify(registrar, timeout((int) SECONDS.toMillis(LONG_WAIT_SECONDS)))
  .register(registrationCaptor.capture());
final ServiceRegistration serviceRegistration = registrationCaptor.getValue();

代码示例来源：origin: org.mule.runtime/mule-core-tests

@Test
public void transformerFactoryProperties() {
 SetPropertyAnswer setPropertyAnswer = new SetPropertyAnswer(transformerFactory);
 doAnswer(setPropertyAnswer).when(transformerFactoryWrapper).setAttribute(anyString(), anyObject());
 defaultXMLSecureFactories.configureTransformerFactory(transformerFactoryWrapper);
 assertThat(setPropertyAnswer.exception, is(nullValue()));
 for (String property : FACTORY_ATTRIBUTES) {
  verify(transformerFactoryWrapper).setAttribute(property, "");
 }
}

代码示例来源：origin: HotelsDotCom/styx

@Test
public void emptyHeadersHasEmptyNames() {
  HttpHeaders httpHeaders = new HttpHeaders.Builder().build();
  assertThat(httpHeaders.names(), is(emptyIterable()));
}

代码示例来源：origin: org.mule.runtime/mule-core-tests

@Test
public void resolveBooleanWithBooleanStringValue() {
 AttributeEvaluator attributeEvaluator = new AttributeEvaluator("#[mel:expression]", BOOLEAN);
 attributeEvaluator.initialize(mockExpressionManager);
 final String expectedValue = "true";
 doReturn(new TypedValue<>(Boolean.valueOf(expectedValue), BOOLEAN))
   .when(mockExpressionManager)
   .evaluate(anyString(), any(DataType.class), any(BindingContext.class), any(CoreEvent.class));
 assertThat(attributeEvaluator.resolveValue(event), is(Boolean.valueOf(expectedValue)));
}

代码示例来源：origin: neo4j/neo4j

private void assertLogOccurred( Level level, String message )
{
  ArrayList<LoggingEvent> events = getLoggingEvents();
  assertThat( events, hasSize( 1 ) );
  LoggingEvent event = events.get( 0 );
  assertThat( event.getLoggerName(), is( getClass().getName() ) );
  assertThat( event.getLevel(), is( level ) );
  assertThat( event.getMessage(), is( message ) );
}

代码示例来源：origin: HotelsDotCom/styx

@Test
public void retrievesPreviouslyRegisteredTimer() {
  Timer timer = metricRegistry.timer("newTimer");
  assertThat(timer, is(notNullValue()));
  assertThat(metricRegistry.timer("newTimer"), is(sameInstance(timer)));
}

代码示例来源：origin: neo4j/neo4j

@Test
void shouldCreatePathThatPointsToFile() throws Exception
{
  fsa.mkdirs( path );
  assertTrue( fsa.fileExists( path ) );
  path = new File( path, "some_file" );
  try ( StoreChannel channel = fsa.create( path ) )
  {
    assertThat( channel, is( not( nullValue() ) ) );
    fsa.mkdirs( path );
    assertTrue( fsa.fileExists( path ) );
  }
}

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