assertThat(expected).hasMessageThat().isEqualTo("Mark not set");
  }

  public void testMarkNotSupported() {
    counter = new CountingInputStream(new UnmarkableInputStream());

    IOException expected = assertThrows(IOException.class, () -> counter.reset());
    assertThat(expected).hasMessageThat().isEqualTo("Mark not supported");
  }

    assertThat(readFully(reader)).isEqualTo(string);
    assertFullyRead(reader);

    // reset, skip, mark, then read the rest
    reader.reset();
    assertEquals(5, reader.skip(5));
    reader.mark(Integer.MAX_VALUE);
    assertThat(readFully(reader)).isEqualTo(string.substring(5));
    assertFullyRead(reader);

    // reset to the mark and then read the rest
    reader.reset();

import pytest
from typer.testing import CliRunner

from scripts.translation_fixer import cli

data_path = Path(
    "scripts/tests/test_translation_fixer/test_code_blocks/data"
).absolute()


@pytest.mark.parametrize(
    "copy_test_files",
    [(f"{data_path}/en_doc.md", f"{data_path}/translated_doc_number_gt.md")],
    indirect=True,
)
def test_gt(runner: CliRunner, root_dir: Path, copy_test_files):

Vamos ver como nós podemos fazer isso funcionar.

## pytest.mark.anyio { #pytest-mark-anyio }

@app.get("/required-alias-and-validation-alias/{p_val_alias}")
def read_required_alias_and_validation_alias(
    p: Annotated[str, Path(alias="p_alias", validation_alias="p_val_alias")],
):
    return {"p": p}


@pytest.mark.parametrize(
    ("path", "expected_name", "expected_title"),
    [
        pytest.param("/required-str/{p}", "p", "P", id="required-str"),
        pytest.param(

Давайте рассмотрим, как мы можем это реализовать.

## pytest.mark.anyio { #pytest-mark-anyio }

  static void clear(Buffer b) {
    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

  static void limit(Buffer b, int limit) {
    b.limit(limit);
  }

  static void mark(Buffer b) {
    b.mark();
  }

  static void position(Buffer b, int position) {
    b.position(position);
  }

  static void reset(Buffer b) {
    b.reset();
  }

  private Java8Compatibility() {}

你已經看過如何使用提供的 `TestClient` 來測試你的 FastAPI 應用。到目前為止，你只看到如何撰寫同步測試，沒有使用 `async` 函式。

在測試中能使用非同步函式會很有用，例如當你以非同步方式查詢資料庫時。想像你想測試發送請求到 FastAPI 應用，然後在使用非同步資料庫函式庫時，驗證後端是否成功把正確資料寫入資料庫。

來看看怎麼做。

## pytest.mark.anyio { #pytest-mark-anyio }

若要在測試中呼叫非同步函式，測試函式本身也必須是非同步的。AnyIO 為此提供了一個好用的外掛，讓我們可以標示某些測試函式以非同步方式執行。

## HTTPX { #httpx }

即使你的 FastAPI 應用使用一般的 `def` 函式而非 `async def`，它在底層仍然是個 `async` 應用。

from pathlib import Path

import pytest
from typer.testing import CliRunner

from scripts.translation_fixer import cli

data_path = Path("scripts/tests/test_translation_fixer/test_html_links/data").absolute()


@pytest.mark.parametrize(
    "copy_test_files",
    [(f"{data_path}/en_doc.md", f"{data_path}/translated_doc_number_gt.md")],
    indirect=True,
)
def test_gt(runner: CliRunner, root_dir: Path, copy_test_files):

import pytest
from typer.testing import CliRunner

from scripts.translation_fixer import cli

data_path = Path(
    "scripts/tests/test_translation_fixer/test_markdown_links/data"
).absolute()


@pytest.mark.parametrize(
    "copy_test_files",
    [(f"{data_path}/en_doc.md", f"{data_path}/translated_doc_number_gt.md")],
    indirect=True,
)
def test_gt(runner: CliRunner, root_dir: Path, copy_test_files):