///

/// tip | 팁

FastAPI 애플리케이션에 요청을 보내는 것 외에도 테스트에서 `async` 함수를 호출하고 싶다면 (예: 비동기 데이터베이스 함수), 심화 튜토리얼의 [Async Tests](../advanced/async-tests.md){.internal-link target=_blank} 를 참조하세요.

///

## 테스트 분리하기

실제 애플리케이션에서는 테스트를 별도의 파일로 나누는 경우가 많습니다.


그리고 **FastAPI** 애플리케이션도 여러 파일이나 모듈 등으로 구성될 수 있습니다.

### **FastAPI** app 파일

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link MoreObjects}. */
@GwtCompatible
@NullUnmarked
public class MoreObjectsTest extends TestCase {
  public void testFirstNonNull_withNonNull() {
    String s1 = "foo";

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Tests for the SmbComNegotiate class.
 */
class SmbComNegotiateTest {

    private SmbComNegotiate smbComNegotiate;
    private static final String DIALECTS = "\u0002NT LM 0.12\u0000";

    @BeforeEach
    void setUp() {
        // Create a new instance before each test
        smbComNegotiate = new SmbComNegotiate();
    }

    /**

/**
 * Testers for {@link ListMultimap#replaceValues(Object, Iterable)}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class ListMultimapReplaceValuesTester<K, V> extends AbstractListMultimapTester<K, V> {

import java.util.Collections;
import java.util.List;
import org.junit.Ignore;

/**
 * Tests for the {@code inverse} view of a BiMap.
 *
 * <p>This assumes that {@code bimap.inverse().inverse() == bimap}, which is not technically
 * required but is fulfilled by all current implementations.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

import java.lang.reflect.Field;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link SmbComTransactionResponse}.
 *
 * <p>The class is abstract, so a concrete stub implementation is
 * provided purely to expose protected state and to satisfy the abstract
 * method contract.  The tests focus on public API behaviour and the
 * parsing logic in {@code readParameterWordsWireFormat} and

import java.util.List;
import java.util.Set;
import org.junit.Ignore;

/**
 * Tests for {@link SetMultimap#replaceValues}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.MethodSource;
import org.mockito.junit.jupiter.MockitoExtension;

/**
 * Unit tests for {@code NtTransQuerySecurityDesc}.
 *
 * The class under test contains a number of straightforward data‑layout

Sie möchten den externen Anbieter wahrscheinlich einmal testen, ihn aber nicht unbedingt bei jedem weiteren ausgeführten Test aufrufen.

In diesem Fall können Sie die Abhängigkeit, die diesen Anbieter aufruft, überschreiben und eine benutzerdefinierte Abhängigkeit verwenden, die einen Scheinbenutzer zurückgibt, nur für Ihre Tests.

import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ArgumentsSource

/**
 * Tests for round-tripping headers through hpack.
 *
 * TODO: update hpack-test-case with the output of our encoder.
 * This test will hide complementary bugs in the encoder and decoder,
 * We should test that the encoder is producing responses that are
 */
class HpackRoundTripTest : HpackDecodeTestBase() {