## Example

    ```python
    from typing import Annotated

    from fastapi import Depends, FastAPI
    from fastapi.security import OAuth2PasswordRequestForm

    app = FastAPI()


    @app.post("/login")
    def login(form_data: Annotated[OAuth2PasswordRequestForm, Depends()]):
        data = {}
        data["scopes"] = []
        for scope in form_data.scopes:
            data["scopes"].append(scope)

        hp.getPort();
        fail("Expected IllegalStateException");
      } catch (IllegalStateException expected) {
      }
    }
    assertThat(hp.getHost()).isEqualTo(expectHost);

    // Check the post-withDefaultPort() instance (if any).
    if (!badDefaultPort) {
      try {
        int port = hp2.getPort();
        assertTrue(expectPort != -1);
        assertEquals(expectPort, port);

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

假設現在你的 **FastAPI** 應用所在的 `main.py` 有一些其他的路徑操作（path operations）。

它有一個可能回傳錯誤的 `GET` 操作。

它有一個可能回傳多種錯誤的 `POST` 操作。

兩個路徑操作都需要一個 `X-Token` 標頭（header）。

{* ../../docs_src/app_testing/app_b_an_py310/main.py *}

### 擴充的測試檔案 { #extended-testing-file }

接著你可以把 `test_main.py` 更新為擴充後的測試：

让我们继续之前的文件结构：

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

假设现在包含**FastAPI** app的文件 `main.py` 有些其他**路径操作**。

有个 `GET` 操作会返回错误。

有个 `POST` 操作会返回一些错误。

所有*路径操作* 都需要一个`X-Token` 头。

{* ../../docs_src/app_testing/app_b_an_py310/main.py *}

### 扩展后的测试文件 { #extended-testing-file }

然后您可以使用扩展后的测试更新`test_main.py`：

    long length = 0;
    for (byte[] array : arrays) {
      length += array.length;
    }
    byte[] result = new byte[checkNoOverflow(length)];
    int pos = 0;
    for (byte[] array : arrays) {
      System.arraycopy(array, 0, result, pos, array.length);
      pos += array.length;
    }
    return result;
  }

  private static int checkNoOverflow(long result) {
    checkArgument(
        result == (int) result,

            OutputStream os2 = mockResource.openOutputStream(true);
            OutputStream os3 = mockResource.openOutputStream(false, 1);
            OutputStream os4 = mockResource.openOutputStream(true, 1, 2, 3);

            // Then
            assertNotNull(os1, "Default output stream should not be null");
            assertNotNull(os2, "Output stream with append should not be null");

// Used uint for unsigned long. Used uint32 for input arguments in order to match
// the Go hash/crc32 package. zlib CRC32 combine (https://github.com/madler/zlib)
// Modified for hash/crc64 by Klaus Post, 2024.
func gf2MatrixTimes(mat []uint64, vec uint64) uint64 {
	var sum uint64

	for vec != 0 {
		if vec&1 != 0 {
			sum ^= mat[0]
		}
		vec >>= 1
		mat = mat[1:]
	}
	return sum
}

matchLabels: app: {{ template "minio.name" . }} {{- end }} minio/templates/post-install-create-bucket-job.yaml {{- if .Values.buckets }} apiVersion: batch/v1 kind: Job metadata: name: {{ template "minio.fullname" . }}-make-bucket-job labels: app: {{ template "minio.name" . }}-make-bucket-job chart: {{ template "minio.chart" . }} release: {{ .Release.Name }} heritage: {{ .Release.Service }} annotations: "helm.sh/hook": post-install,post-upgrade "helm.sh/hook-delete-policy": hook-succeeded,before-hook-creation...

  val method: String? by option("-X", "--request").help("Specify request command to use")

  val data: String? by option("-d", "--data").help("HTTP POST data")

  val headers: List<String>? by option("-H", "--header").help("Custom header to pass to server").multiple()

  val userAgent: String by option(
    "-A",
    "--user-agent",
  ).help(

```

Diyelim ki **FastAPI** uygulamanızın bulunduğu `main.py` dosyasında artık başka **path operations** da var.

Hata döndürebilecek bir `GET` operation'ı var.

Birden fazla farklı hata döndürebilecek bir `POST` operation'ı var.

Her iki *path operation* da `X-Token` header'ını gerektiriyor.

{* ../../docs_src/app_testing/app_b_an_py310/main.py *}

### Genişletilmiş Test Dosyası { #extended-testing-file }