import com.google.common.collect.testing.IteratorTester;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link PeekingIterator}.
 *
 * @author Mick Killianey
 */

O que o FastAPI realmente verifica, é se a dependência é algo chamável (função, classe, ou outra coisa) e os parâmetros que foram definidos.

Se você passar algo "chamável" como uma dependência do **FastAPI**, o framework irá analisar os parâmetros desse "chamável" e processá-los da mesma forma que os parâmetros de uma *função de operação de rota*. Incluindo as sub-dependências.

<img src="/img/tutorial/body/image03.png">

Sie bekommen auch Fehler-Meldungen für inkorrekte Typoperationen:

<img src="/img/tutorial/body/image04.png">

Das ist nicht zufällig so, das ganze Framework wurde um dieses Design herum aufgebaut.

Und es wurde in der Designphase gründlich getestet, vor der Implementierung, um sicherzustellen, dass es mit jedem Editor funktioniert.

Wir begrüßen Pull-Requests für Ihre Sprache.

## Unterstützt von

* [Lasta Di](https://github.com/lastaflute/lasta-di "Lasta Di"): DI-Container
* [LastaFlute](https://github.com/lastaflute/lastaflute "LastaFlute"): Web-Framework
* [Lasta Job](https://github.com/lastaflute/lasta-job "Lasta Job"): Job-Scheduler
* [Fess Crawler](https://github.com/codelibs/fess-crawler "Fess Crawler"): Web-Crawler

import com.google.common.testing.SerializableTester;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a Map implementation.
 *
 * @author George van den Driessche
 */
@GwtIncompatible

 * limitations under the License.
 */

package com.google.common.testing;

import static com.google.common.base.Preconditions.checkNotNull;
import static junit.framework.Assert.assertTrue;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

---> 100%
```

</div>

## WebSockets client { #websockets-client }

### In production { #in-production }

In your production system, you probably have a frontend created with a modern framework like React, Vue.js or Angular.

And to communicate using WebSockets with your backend you would probably use your frontend's utilities.

import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import java.util.stream.Stream;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for the default implementations of {@code CharSource} methods.
 *
 * @author Colin Decker
 */
@NullUnmarked

import com.google.common.collect.ImmutableSet;
import java.io.Closeable;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Closer}.
 *
 * @author Colin Decker
 */
@NullUnmarked

import java.util.concurrent.Future;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests {@link SequentialExecutor}.
 *
 * @author JJ Furman
 */
@NullUnmarked
public class SequentialExecutorTest extends TestCase {