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   * }
   * if (failure != null) {
   *   throwIfInstanceOf(failure, BarException.class);
   *   throwIfUnchecked(failure);
   *   throw new AssertionError(failure);
   * }
   * </pre>
   *
   * @since 20.0
   */
  @GwtIncompatible // Class.cast, Class.isInstance
  public static <X extends Throwable> void throwIfInstanceOf(
      Throwable throwable, Class<X> declaredType) throws X {
    checkNotNull(throwable);

////

//// tab | Python 3.8+

```Python hl_lines="9"
{!> ../../docs_src/header_params/tutorial001.py!}
```

////

/// note | "Detalhes Técnicos"

`Header` é uma classe "irmã" de `Path`, `Query` e `Cookie`. Ela também herda da mesma classe em comum `Param`.

Mas lembre-se que quando você importa `Query`, `Path`, `Header`, e outras de `fastapi`, elas são na verdade funções que retornam classes especiais.

///

/// info

import junit.framework.TestCase;

/** Unit test for {@link com.google.common.base.Verify}. */
@GwtCompatible(emulated = true)
public class VerifyTest extends TestCase {
  public void testVerify_simple_success() {
    verify(true);
  }

  public void testVerify_simple_failure() {
    assertThrows(VerifyException.class, () -> verify(false));
  }

  public void testVerify_simpleMessage_success() {
    verify(true, "message");
  }

    setDistinctValues(AbstractGraphBuilder.class, GRAPH_BUILDER_A, GRAPH_BUILDER_B);
    setDistinctValues(Graph.class, IMMUTABLE_GRAPH_A, IMMUTABLE_GRAPH_B);
    setDistinctValues(MutableNetwork.class, mutableNetworkA, mutableNetworkB);
    setDistinctValues(NetworkBuilder.class, NETWORK_BUILDER_A, NETWORK_BUILDER_B);
    setDistinctValues(Network.class, IMMUTABLE_NETWORK_A, IMMUTABLE_NETWORK_B);

        UnsupportedOperationException.class,
        () -> collection.addAll(MinimalCollection.of(e3(), e0())));
    expectUnchanged();
  }

  @CollectionFeature.Require({SUPPORTS_ADD, FAILS_FAST_ON_CONCURRENT_MODIFICATION})
  @CollectionSize.Require(absent = ZERO)
  public void testAddAllConcurrentWithIteration() {
    assertThrows(
        ConcurrentModificationException.class,
        () -> {

    assertFalse(future.isCancelled());
    assertThrows(TimeoutException.class, () -> future.get(0, MILLISECONDS));
    nested.set("foo");
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals("foo", future.get());
  }

  private static class Foo {}

  private static class FooChild extends Foo {}

  public void testSetFuture_genericsHierarchy() throws Exception {

  /**
   * A source that reads the incoming data frames of a stream. Although this class uses
   * synchronization to safely receive incoming data frames, it is not intended for use by multiple
   * readers.
   */
  inner class FramingSource internal constructor(
    /** Maximum number of bytes to buffer before reporting a flow control error. */
    private val maxByteCount: Long,

import java.util.logging.Logger;
import junit.framework.TestCase;

/**
 * Tests for {@link ServiceManager}.
 *
 * @author Luke Sandberg
 * @author Chris Nokleberg
 */
public class ServiceManagerTest extends TestCase {

  private static class NoOpService extends AbstractService {
    @Override
    protected void doStart() {
      notifyStarted();
    }

    @Override
    protected void doStop() {
      notifyStopped();

## Установка

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>