* Swagger UI.
    * ReDoc.

---

Voltando ao código do exemplo anterior, **FastAPI** irá:

* Validar que existe um `item_id` na rota para requisições `GET` e `PUT`.
* Validar que `item_id` é do tipo `int` para requisições `GET` e `PUT`.
    * Se não é validado, o cliente verá um útil, claro erro.

		}
	}

	for _, tag := range ef.Tags {
		if err := tag.Validate(); err != nil {
			return err
		}
	}

	for _, meta := range ef.Metadata {
		if err := meta.Validate(); err != nil {
			return err
		}
	}
	if err := ef.Purge.Validate(); err != nil {
		return err
	}
	if err := ef.Size.Validate(); err != nil {
		return err
	}

///

/// tip | Consejo

Nota que en este caso estamos usando una función estándar de Python `open()` que interactúa con un archivo.

Entonces, involucra I/O (entrada/salida), que requiere "esperar" para que las cosas se escriban en el disco.

Pero `open()` no usa `async` y `await`.

Por eso, declaramos la función manejadora del evento con `def` estándar en vez de `async def`.

///

        QueryBuilder builder = queryProcessor.execute(context, prefixQuery, 1.0f);

        assertNotNull(builder);
        // Empty prefix should still create a valid query
        assertTrue(builder instanceof MatchPhrasePrefixQueryBuilder);

        MatchPhrasePrefixQueryBuilder mpqb = (MatchPhrasePrefixQueryBuilder) builder;
        assertEquals("", mpqb.value());
    }

    public void setUp() throws CIFSException {
        MockitoAnnotations.openMocks(this);
        config = new PropertyConfiguration(new Properties());
    }

    /**
     * Test constructor initialization with valid parameters
     */
    @Test
    @DisplayName("Test constructor initializes fields correctly")
    public void testConstructor() throws Exception {
        // Given
        String oldFileName = "oldFile.txt";

import jcifs.CIFSContext;

class UniAddressTest {

    @Nested
    @DisplayName("isDotQuadIP method tests")
    class IsDotQuadIPTests {

        @ParameterizedTest(name = "should return true for valid IP address: {0}")
        @ValueSource(strings = { "192.168.1.1", "10.0.0.255", "0.0.0.0", "255.255.255.255" })
        void shouldReturnTrueForValidIpAddresses(String ip) {
            assertTrue(UniAddress.isDotQuadIP(ip));

	if redirectURL != nil { // success_action_redirect is valid and set.
		v := redirectURL.Query()
		v.Add("bucket", objInfo.Bucket)
		v.Add("key", objInfo.Name)
		v.Add("etag", "\""+objInfo.ETag+"\"")
		redirectURL.RawQuery = v.Encode()
		writeRedirectSeeOther(w, redirectURL.String())
		return
	}

	// Add checksum header.
	if checksum != nil && checksum.Valid() {
		hash.AddChecksumHeader(w, checksum.AsMap())

    Random random = new Random();
    for (int i = 0; i < 100; i++) {
      byte[] bytes = new byte[64];
      random.nextBytes(bytes);
      String s = new String(bytes, UTF_16LE); // so all random strings are valid
      assertEquals(
          new Sink(4).putUnencodedChars(s).hash(),
          new Sink(4).putBytes(s.getBytes(UTF_16LE)).hash());
      assertEquals(

        int bytesWritten = transCallNamedPipe.writeDataWireFormat(dst, 0);

        // Then
        assertEquals(maxData.length, bytesWritten);
    }

    @Test
    @DisplayName("Test zero-length write with valid data array")
    void testZeroLengthWrite() {
        // Given
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_DATA, 0, 0);
        byte[] dst = new byte[100];

        // When

        assertNotNull(option);
        assertTrue(option.startsWith("-D" + Constants.FESS_THUMBNAIL_PATH + "="));
        assertTrue(option.contains(tempDir.getAbsolutePath()));
    }

    // Test offer with valid generator
    public void test_offer_withValidGenerator() {
        TestThumbnailGenerator generator = new TestThumbnailGenerator();
        generator.available = true;
        generator.target = true;