# Test Etme { #testing }

[Starlette](https://www.starlette.dev/testclient/) sayesinde **FastAPI** uygulamalarını test etmek kolay ve keyiflidir.

Temelde [HTTPX](https://www.python-httpx.org) üzerine kuruludur; HTTPX de Requests’i temel alarak tasarlandığı için oldukça tanıdık ve sezgiseldir.

Bununla birlikte **FastAPI** ile [pytest](https://docs.pytest.org/)'i doğrudan kullanabilirsiniz.

## `TestClient` Kullanımı { #using-testclient }

/// info | Bilgi

 - [Gitbucket](https://github.com/codelibs/fess-ds-gitbucket)
 - [G Suite](https://github.com/codelibs/fess-ds-gsuite)
 - [JSON](https://github.com/codelibs/fess-ds-json)
 - [Office 365](https://github.com/codelibs/fess-ds-office365)
 - [S3](https://github.com/codelibs/fess-ds-s3)
 - [Salesforce](https://github.com/codelibs/fess-ds-salesforce)
 - [SharePoint](https://github.com/codelibs/fess-ds-sharepoint)

# Тестування { #testing }

Завдяки [Starlette](https://www.starlette.dev/testclient/), тестувати застосунки **FastAPI** просто й приємно.

Воно базується на [HTTPX](https://www.python-httpx.org), який, своєю чергою, спроєктований на основі Requests, тож він дуже знайомий та інтуїтивно зрозумілий.

З його допомогою ви можете використовувати [pytest](https://docs.pytest.org/) безпосередньо з **FastAPI**.

## Використання `TestClient` { #using-testclient }

import okhttp3.internal.discard
import okhttp3.internal.headersContentLength
import okhttp3.internal.http.ExchangeCodec
import okhttp3.internal.http.HTTP_CONTINUE
import okhttp3.internal.http.RequestLine
import okhttp3.internal.http.StatusLine
import okhttp3.internal.http.promisesBody
import okhttp3.internal.http.receiveHeaders
import okhttp3.internal.http1.Http1ExchangeCodec.Companion.TRAILERS_RESPONSE_BODY_TRUNCATED
import okhttp3.internal.skipAll

# CORS（跨域资源共享） { #cors-cross-origin-resource-sharing }

[CORS 或者「跨域资源共享」](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) 指浏览器中运行的前端拥有与后端通信的 JavaScript 代码，而后端处于与前端不同的「源」的情况。

## 源 { #origin }

源是协议（`http`，`https`）、域（`myapp.com`，`localhost`，`localhost.tiangolo.com`）以及端口（`80`、`443`、`8080`）的组合。

因此，这些都是不同的源：

* `http://localhost`
* `https://localhost`
* `http://localhost:8080`

即使它们都在 `localhost` 中，但是它们使用不同的协议或者端口，所以它们都是不同的「源」。

-bin.zip http://archive.apache.org/dist/maven/binaries/apache-maven-3.0.4-bin.tar.gz http://archive.apache.org/dist/maven/source/apache-maven-3.0.4-src.zip http://archive.apache.org/dist/maven/source/apache-maven-3.0.4-src.tar.gz Apache Maven 3.0.3 2011-03-03 3.0.3 http://archive.apache.org/dist/maven/binaries/apache-maven-3.0.3-bin.zip http://archive.apache.org/dist/maven/binaries/apache-maven-3.0.3-bin.tar.gz http://archive.apache.org/dist/maven/source/apache-maven-3.0.3-src.zip http://archive...

이는 [JSON Lines 스트리밍](stream-json-lines.md)과 비슷하지만, 브라우저가 기본적으로 [`EventSource` API](https://developer.mozilla.org/en-US/docs/Web/API/EventSource)를 통해 지원하는 `text/event-stream` 형식을 사용합니다.

/// info | 정보

FastAPI 0.135.0에 추가되었습니다.

///

## Server-Sent Events란 { #what-are-server-sent-events }

SSE는 서버에서 클라이언트로 HTTP를 통해 데이터를 스트리밍하기 위한 표준입니다.

각 이벤트는 `data`, `event`, `id`, `retry`와 같은 "필드"를 가진 작은 텍스트 블록이며, 빈 줄로 구분됩니다.

        assertEquals("http://127.0.0.1:8080/path", IpAddressUtil.buildUrl("http", ipv4, 8080, "/path"));
        assertEquals("http://127.0.0.1:8080/path", IpAddressUtil.buildUrl("http", ipv4, 8080, "path"));

        // IPv4 with port, no path
        assertEquals("http://127.0.0.1:8080", IpAddressUtil.buildUrl("http", ipv4, 8080, ""));

# Testing { #testing }

Thanks to [Starlette](https://www.starlette.dev/testclient/), testing **FastAPI** applications is easy and enjoyable.

It is based on [HTTPX](https://www.python-httpx.org), which in turn is designed based on Requests, so it's very familiar and intuitive.

With it, you can use [pytest](https://docs.pytest.org/) directly with **FastAPI**.

## Using `TestClient` { #using-testclient }

/// info

[http]
  [http.middlewares]

    [http.middlewares.api-stripprefix.stripPrefix]
      prefixes = ["/api/v1"]

  [http.routers]

    [http.routers.app-http]
      entryPoints = ["http"]
      service = "app"
      rule = "PathPrefix(`/api/v1`)"
      middlewares = ["api-stripprefix"]

  [http.services]

    [http.services.app]
      [http.services.app.loadBalancer]