import com.google.common.testing.EqualsTester;
import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import java.math.BigInteger;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@code UnsignedLong}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullUnmarked

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test for {@link WrappingExecutorService}
 *
 * @author Chris Nokleberg
 */
@NullUnmarked

* <a href="https://github.com/django/daphne" class="external-link" target="_blank">Daphne</a>: ASGI‑сервер, созданный для Django Channels.
* <a href="https://github.com/emmett-framework/granian" class="external-link" target="_blank">Granian</a>: HTTP‑сервер на Rust для Python‑приложений.

import com.google.common.annotations.GwtIncompatible;
import com.google.common.testing.SerializableTester;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@code ImmutableRangeMap}.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible // NavigableMap
@NullUnmarked

import com.google.errorprone.annotations.Keep;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.reflect.Method;
import java.util.Set;
import junit.framework.TestCase;

/**
 * @author George van den Driessche
 */
public class FeatureUtilTest extends TestCase {
  enum ExampleFeature implements Feature<Object> {
    FOO,
    IMPLIES_FOO,
    IMPLIES_IMPLIES_FOO,

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.

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test for {@link WrappingExecutorService}
 *
 * @author Chris Nokleberg
 */
@NullUnmarked

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
 */

import com.google.common.testing.SerializableTester;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@code Synchronized#map}.
 *
 * @author Mike Bostock
 */
@NullUnmarked

import com.google.common.annotations.GwtCompatible;
import com.google.common.testing.EqualsTester;
import java.util.Collections;
import java.util.Comparator;
import java.util.Optional;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@code Comparators}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked