assertEqualsSame(expected, in, anyOf("-#123").trimAndCollapseFrom(in, replacement));
    }
  }

  public void testReplaceFrom() {
    assertEquals("yoho", is('a').replaceFrom("yaha", 'o'));
    assertEquals("yh", is('a').replaceFrom("yaha", ""));
    assertEquals("yoho", is('a').replaceFrom("yaha", "o"));
    assertEquals("yoohoo", is('a').replaceFrom("yaha", "oo"));
    assertEquals("12 > 5", is('>').replaceFrom("12 > 5", ">"));

      assertEqualsSame(expected, in, anyOf("-#123").trimAndCollapseFrom(in, replacement));
    }
  }

  public void testReplaceFrom() {
    assertEquals("yoho", is('a').replaceFrom("yaha", 'o'));
    assertEquals("yh", is('a').replaceFrom("yaha", ""));
    assertEquals("yoho", is('a').replaceFrom("yaha", "o"));
    assertEquals("yoohoo", is('a').replaceFrom("yaha", "oo"));
    assertEquals("12 > 5", is('>').replaceFrom("12 > 5", ">"));

  }

  @Test
  fun multiline() {
    consumeEvents(
      """
      |data: YHOO
      |data: +2
      |data: 10
      |
      |
      """.trimMargin(),
    )
    assertThat(callbacks.remove()).isEqualTo(Event(null, null, "YHOO\n+2\n10"))
  }

  @Test
  fun multilineCr() {
    consumeEvents(
      """
      |data: YHOO
      |data: +2
      |data: 10
      |
      |

        // something like the following:
        //
        // <dependencyManagement>
        //     <dependencies>
        //         <!--  Yoko modules -->
        //         <dependency>
        //             <groupId>org.apache.yoko</groupId>
        //             <artifactId>yoko-core</artifactId>

* Tẹ bọtini "Gbiyanju rẹ" i.e. "Try it out", yóò gbà ọ́ láàyè láti jẹ́ kí ó tẹ́ àlàyé tí ó nílò kí ó le sọ̀rọ̀ tààrà pẹ̀lú API:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Lẹhinna tẹ bọtini "Ṣiṣe" i.e. "Execute", olùmúlò (i.e. user interface) yóò sọrọ pẹ̀lú API rẹ, yóò ṣe afiranṣẹ àwọn èròjà, pàápàá jùlọ yóò gba àwọn àbájáde yóò si ṣafihan wọn loju ìbòjú:

    assert response.json() == {"unicorn_name": "shinny"}


def test_get_exception():
    response = client.get("/unicorns/yolo")
    assert response.status_code == 418, response.text
    assert response.json() == {
        "message": "Oops! yolo did something. There goes a rainbow..."
    }


def test_openapi_schema():
    response = client.get("/openapi.json")

        status_code=418,
        content={"message": f"Oops! {exc.name} did something. There goes a rainbow..."},
    )


@app.get("/unicorns/{name}")
async def read_unicorn(name: str):
    if name == "yolo":
        raise UnicornException(name=name)

budem
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```Python hl_lines="5-7  13-18  24"
{!../../docs_src/handling_errors/tutorial003.py!}
```

📥, 🚥 👆 📨 `/unicorns/yolo`, *➡ 🛠️* 🔜 `raise` `UnicornException`.

✋️ ⚫️ 🔜 🍵 `unicorn_exception_handler`.

, 👆 🔜 📨 🧹 ❌, ⏮️ 🇺🇸🔍 👔 📟 `418` & 🎻 🎚:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | "📡 ℹ"

{!../../docs_src/handling_errors/tutorial003.py!}
```

Здесь, если запросить `/unicorns/yolo`, то *операция пути* вызовет `UnicornException`.

Но оно будет обработано `unicorn_exception_handler`.

Таким образом, вы получите чистую ошибку с кодом состояния HTTP `418` и содержимым JSON:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | "Технические детали"