.heldCertificate(localhostCertificate)
    .build();
MockWebServer server = new MockWebServer();
server.useHttps(serverCertificates.sslSocketFactory(), false);
```

`HandshakeCertificates` also works for clients where its job is to define which root certificates
to trust. In this simplified example we trust the server's self-signed certificate:

```java

      byte[] got = out.toByteArray();
      for (int i = 0; i < expected.length; i++) {
        assertEquals(expected[i], got[i]);
      }
    }
  }

  // Assumes that AbstractNonStreamingHashFunction works properly (must be tested elsewhere!)
  private static class Control extends AbstractNonStreamingHashFunction {
    @Override
    public HashCode hashBytes(byte[] input, int off, int len) {

#### Http2Stream

This lock guards the internal state of each stream. As above, it is never held for blocking operations. When we need to hold an application thread to block a read, we use wait/notify on this lock. This works because the lock is released while `wait()` is waiting.

#### Http2Writer

しかし、それよりもはるかに複雑です。

/// tip

もし急いでいたり、HTTPSの仕組みについて気にしないのであれば、次のセクションに進み、さまざまなテクニックを使ってすべてをセットアップするステップ・バイ・ステップの手順をご覧ください。

///

利用者の視点から **HTTPS の基本を学ぶ**に当たっては、次のリソースをオススメします: <a href="https://howhttps.works/" class="external-link" target="_blank">https://howhttps.works/</a>.

さて、**開発者の視点**から、HTTPSについて考える際に念頭に置くべきことをいくつかみていきましょう：

* HTTPSの場合、**サーバ**は**第三者**によって生成された**「証明書」を持つ**必要があります。
    * これらの証明書は「生成」されたものではなく、実際には第三者から**取得**されたものです。

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

**Note**: Make sure you put `"fastapi[standard]"` in quotes to ensure it works in all terminals.

## Example

### Create it

Create a file `main.py` with:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()

```console
// Ein Verzeichnis „Code“ erstellen
$ mkdir code
// In dieses Verzeichnis wechseln
$ cd code
```

... und ein Python-Codebeispiel ...

```Python
wont_work()  # Das wird nicht funktionieren 😱
works(foo="bar")  # Das funktioniert 🎉
```

... und das war's.

////

//// tab | Info

Code in Codeblöcken sollte nicht verändert werden, mit Ausnahme von Kommentaren.

        }

        FlakyTestStrategy.ONLY -> {
            // Note there is an issue: https://github.com/spockframework/spock/issues/1288
            // JUnit Platform `includeTags` works before Spock engine, thus excludes all spock tests.
            // As a workaround, we tag all non-spock integration tests and use `includeTags(none() | Flaky)` here.

      <T extends @Nullable Object> Scenario<?> mutate(Scenario<T> scenario) {
        List<Iterable<T>> words = new ArrayList<>();
        words.add(Collections.<T>emptyList());
        for (T t : scenario.strictlyOrderedList) {
          words.add(asList(t));
          for (T s : scenario.strictlyOrderedList) {
            words.add(asList(t, s));
          }
        }
        return new Scenario<Iterable<T>>(

      <T extends @Nullable Object> Scenario<?> mutate(Scenario<T> scenario) {
        List<Iterable<T>> words = new ArrayList<>();
        words.add(Collections.<T>emptyList());
        for (T t : scenario.strictlyOrderedList) {
          words.add(asList(t));
          for (T s : scenario.strictlyOrderedList) {
            words.add(asList(t, s));
          }
        }
        return new Scenario<Iterable<T>>(

			Format:   FormatUSTAR,
		}},
	}, {
		// Generated by Go, works on BSD tar v3.1.2 and GNU tar v.1.27.1.
		file: "testdata/gnu-nil-sparse-data.tar",
		headers: []*Header{{
			Name:     "sparse.db",
			Typeflag: TypeGNUSparse,
			Size:     1000,
			ModTime:  time.Unix(0, 0),
			Format:   FormatGNU,
		}},
	}, {
		// Generated by Go, works on BSD tar v3.1.2 and GNU tar v.1.27.1.