`TestClient`는 <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a>를 기반으로 하고 있으며, 다행히 이를 직접 사용하여 API를 테스트할 수 있습니다.

## 예시

간단한 예시를 위해 [더 큰 어플리케이션 만들기](../ko/tutorial/bigger-applications.md){.internal-link target=_blank} 와 [테스트](../ko/tutorial/testing.md){.internal-link target=_blank}:에서 다룬 파일 구조와 비슷한 형태를 확인해봅시다:

```
.
├── app
│   ├── __init__.py
│   ├── main.py

    void gettersAndAcquire() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        String wildcard = "*.*";
        int attrs = 123;
        FileEntry initial = entry("first");
        List<FileEntry[]> pages = List.of(new FileEntry[][] { new FileEntry[] {} });

        // Act
        TestIterator it = TestIterator.create(tree, parent, wildcard, null, attrs, initial, pages);

import org.codelibs.core.net.URLUtil;

/**
 * Utility class for {@link Properties} operations.
 *
 * @author higa
 */
public abstract class PropertiesUtil {

    /**
     * Do not instantiate.
     */
    protected PropertiesUtil() {
    }

    /**
     * Wraps exception handling for {@link Properties#load(InputStream)}.
     * <p>
     * The input stream is not closed.
     * </p>

HSPLkotlin/collections/SetsKt__SetsKt;->build(Ljava/util/List;)Ljava/util/List;
HSPLkotlin/collections/SetsKt__SetsKt;->listOf(Ljava/lang/Object;)Ljava/util/List;
HSPLkotlin/collections/SetsKt__SetsKt;->listOfNotNull([Ljava/lang/Object;)Ljava/util/List;
HSPLkotlin/collections/SetsKt__SetsKt;->optimizeReadOnlyList(Ljava/util/List;)Ljava/util/List;

    int size = this.size;
    int dummy = 0;
    for (int rep = 0; rep < reps; rep++) {
      ImmutableList.Builder<Object> builder = ImmutableList.builder();
      for (int i = 0; i < size; i++) {
        builder.add(OBJECT);
      }
      dummy += builder.build().size();
    }
    return dummy;
  }

  @Benchmark
  int preSizedBuilderAdd(int reps) {
    int size = this.size;
    int dummy = 0;

        project.setArtifacts(resolver.resolve(project, Collections.singleton(Artifact.SCOPE_COMPILE), session));

        List<String> elements = project.getCompileClasspathElements();
        assertEquals(2, elements.size());

        @SuppressWarnings("deprecation")
        List<Artifact> artifacts = project.getCompileArtifacts();
        assertEquals(1, artifacts.size());

	}

	type NestedEmbeddedStruct struct {
		NestedEmbeddedIntField            int
		NestedEmbeddedIntFieldWithDefault int `gorm:"default:2"`
	}

	type EmbeddedStruct struct {
		EmbeddedIntField     int
		NestedEmbeddedStruct `gorm:"embedded"`
	}

	type EmbeddedPtrStruct struct {
		EmbeddedPtrIntField   int
		*NestedEmbeddedStruct `gorm:"embedded"`
	}

	type Result struct {

/**
 * Utility class for {@link JarInputStream} operations.
 *
 * @author koichik
 */
public abstract class JarInputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected JarInputStreamUtil() {
    }

    /**
     * Creates a {@link JarInputStream}.
     *
     * @param is the input stream (must not be {@literal null})
     * @return {@link JarInputStream}

        throw new UnsupportedOperationException();
    }

    public static List<Plugin> orderAfterMerge(
            List<Plugin> merged, List<Plugin> highPrioritySource, List<Plugin> lowPrioritySource) {
        throw new UnsupportedOperationException();
    }

        /**
         * @param param
         * @return 戻り値
         */
        @SuppressWarnings("rawtypes")
        List rawList(List param);

        /**
         * @param param
         * @return 戻り値
         */
        List<String> genericList(List<Integer> param);

        /**
         * @param param
         * @return 戻り値
         */
        @SuppressWarnings("rawtypes")