response = client.post("/model-with-tuple/", json=data)
    assert response.status_code == 200, response.text
    assert response.json() == data


def test_model_with_tuple_invalid():
    data = {"items": [["foo", "bar"], ["baz", "whatelse", "too", "much"]]}
    response = client.post("/model-with-tuple/", json=data)
    assert response.status_code == 422, response.text

    assert response.json() == {"name": "Foo"}


def test_read_model():
    response = client.get("/model")
    assert response.status_code == 200, response.text
    assert response.json() == {"name": "Foo"}


def test_read_list():
    response = client.get("/list")
    assert response.status_code == 200, response.text
    assert response.json() == [
        {"name": "Foo"},

		path, prefix, suffix string
		expected             string
	}{
		{"config/iam/groups/foo.json", "config/iam/groups/", ".json", "foo"},
		{"config/iam/groups/./foo.json", "config/iam/groups/", ".json", "foo"},
		{"config/iam/groups/foo/config.json", "config/iam/groups/", "/config.json", "foo"},
		{"config/iam/groups/foo/config.json", "config/iam/groups/", "config.json", "foo"},
	}
	for i, test := range specs {

    assert response.json() == {
        "detail": [
            {
                "type": "missing",
                "loc": ["body", "files"],
                "msg": "Field required",
                "input": None,
            }
        ]
    }


def test_post_body_json(client: TestClient):
    response = client.post("/files/", json={"file": "Foo"})

对此你可以使用`jsonable_encoder`。

它接收一个对象，比如Pydantic模型，并会返回一个JSON兼容的版本：

{* ../../docs_src/encoder/tutorial001_py310.py hl[4,21] *}

在这个例子中，它将Pydantic模型转换为`dict`，并将`datetime`转换为`str`。

调用它的结果后就可以使用Python标准编码中的<a href="https://docs.python.org/3/library/json.html#json.dumps" class="external-link" target="_blank">`json.dumps()`</a>。

这个操作不会返回一个包含JSON格式（作为字符串）数据的庞大的`str`。它将返回一个Python标准数据结构（例如`dict`），其值和子值都与JSON兼容。

/// note

    assert response.status_code == 200
    assert response.json() == {"username": "Foo", "password": "secret"}


def test_post_body_form_no_password(client: TestClient):
    response = client.post("/login/", data={"username": "Foo"})
    assert response.status_code == 422
    assert response.json() == {
        "detail": [
            {
                "type": "missing",

    assert response.status_code == 200
    assert response.json() == {"username": "Foo"}


def test_post_body_form_no_password(client: TestClient):
    response = client.post("/login/", data={"username": "Foo"})
    assert response.status_code == 422
    assert response.json() == {
        "detail": [
            {
                "type": "missing",

    response = client.post("/items/", json={"name": "Foo", "price": 5})
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Item received"}


def test_post_users():
    response = client.post(
        "/users/", json={"username": "Foo", "email": "******@****.***"}
    )
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "User received"}

使用上面的任何方法，它在 `/docs` 中看起来都是这样的:

<img src="/img/tutorial/body-fields/image01.png">

## 技术细节

关于 `example` 和 `examples`...

JSON Schema在最新的一个版本中定义了一个字段 <a href="https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5" class="external-link" target="_blank">`examples`</a> ，但是 OpenAPI 基于之前的一个旧版JSON Schema，并没有 `examples`.

    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Incorrect username or password"}
    assert response.headers["WWW-Authenticate"] == "Basic"


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",