}
    }

    @Nested
    @DisplayName("Command Constants Tests")
    class CommandConstantsTests {

        @Test
        @DisplayName("Should have correct command constants")
        void testCommandConstants() {
            assertEquals(0x00, ServerMessageBlock2.SMB2_NEGOTIATE);
            assertEquals(0x01, ServerMessageBlock2.SMB2_SESSION_SETUP);

     * @throws PACDecodingException if the PAC decoding fails.
     */
    @Test
    void testIsCredentialTypeCorrectWithValidData() throws PACDecodingException {
        // A byte array with a length less than 32 should be correct.
        byte[] validData = new byte[31];
        PacCredentialType pacCredentialType = new PacCredentialType(validData);
        assertTrue(pacCredentialType.isCredentialTypeCorrect());
    }

    /**

     * encoded as four 0xFF bytes by {@code writeUTime}.
     */
    @ParameterizedTest(name = "fid={0}, lastWriteTime={1}")
    @MethodSource("validParams")
    @DisplayName("happy: writeParameterWordsWireFormat writes correct bytes")
    void testWriteParameterWordsWireFormat(int fid, long lastWriteTime, byte[] expected) {
        SmbComClose close = new SmbComClose(fid, lastWriteTime);
        byte[] buffer = new byte[10];

## About Starlette { #about-starlette }

You shouldn't pin the version of `starlette`.

Different versions of **FastAPI** will use a specific newer version of Starlette.

So, you can just let **FastAPI** use the correct Starlette version.

## About Pydantic { #about-pydantic }

Pydantic includes the tests for **FastAPI** with its own tests, so new versions of Pydantic (above `1.0.0`) are always compatible with FastAPI.

constraints.CreditCardNumber.message = {item} no es un número de tarjeta de crédito válido.
constraints.EAN.message = {item} no es un código de barras {type} válido.
constraints.Email.message = {item} no es una dirección de correo electrónico válida.
constraints.Length.message = La longitud de {item} debe estar entre {min} y {max}.
constraints.LuhnCheck.message = La suma de comprobación Luhn Módulo 11 de {value} es incorrecta.

        assertEquals("username", user.getName());
        assertSame(testEnv, user.getEnvironment());
        assertNull(user.permissions);
    }

    public void test_getName() {
        // Test getName returns the correct name
        assertEquals("testuser", ldapUser.getName());

        // Test with different names
        LdapUser user2 = new LdapUser(testEnv, "anotheruser");
        assertEquals("anotheruser", user2.getName());

///

Whenever a new request arrives, **FastAPI** will take care of:

* Calling your dependency ("dependable") function with the correct parameters.
* Get the result from your function.
* Assign that result to the parameter in your *path operation function*.

```mermaid
graph TB

common_parameters(["common_parameters"])
read_items["/items/"]

    /** The specified user already exists */
    int NT_STATUS_USER_EXISTS = 0xC0000063;
    /** The specified user does not exist */
    int NT_STATUS_NO_SUCH_USER = 0xC0000064;
    /** The specified network password is not correct */
    int NT_STATUS_WRONG_PASSWORD = 0xC000006a;
    /** Logon failure: unknown user name or bad password */
    int NT_STATUS_LOGON_FAILURE = 0xC000006d;
    /** Logon failure: user account restriction */

     * else a dependency collection request will be done.
     *
     * @return the id of the path scope
     */
    String pathScope() default "";

    /**
     * The request type, in case the default one is not correct.
     * Valid values are {@code collect}, {@code flatten}, or {@code resolve}.
     *
     * @return the request type
     */
    String requestType() default "";

/// tip

Keep in mind that if you return a response directly instead of using the `Response` parameter, FastAPI will return it directly.

So, you will have to make sure your data is of the correct type. E.g. it is compatible with JSON, if you are returning a `JSONResponse`.

And also that you are not sending any data that should have been filtered by a `response_model`.

///

### More info { #more-info }