### Include a *path operation* { #include-a-path-operation }

We can also add *path operations* directly to the `FastAPI` app.

Here we do it... just to show that we can 🤷:

```Python hl_lines="21-23" title="app/main.py"
{!../../docs_src/bigger_applications/app/main.py!}
```

and it will work correctly, together with all the other *path operations* added with `app.include_router()`.

    }

    @Test
    @DisplayName("Should handle path with special characters")
    void testSpecialCharactersInPath() throws Exception {
        // Given
        String specialPath = "\\\\server\\share$\\folder@123\\file#test";
        Smb2TreeConnectRequest req = new Smb2TreeConnectRequest(mockConfig, specialPath);
        byte[] buffer = new byte[512];

        // When
        req.encode(buffer, 0);

        // Then

        void testMinimumBufferSize() {
            // Given
            byte[] minBuffer = new byte[EXPECTED_SIZE];
            SrvCopychunk chunk = new SrvCopychunk(1, 2, 3);

            // When
            int bytesWritten = chunk.encode(minBuffer, 0);

            // Then
            assertEquals(EXPECTED_SIZE, bytesWritten);

        @Test
        @DisplayName("Should handle various result codes correctly")
        void testVariousResultCodes() throws Exception {
            // Test all known result codes
            int[] validCodes = { 0, 1, 2, 3 };
            String[] expectedMessages = { null, // 0 returns null (no exception)
                    "DCERPC_BIND_ERR_ABSTRACT_SYNTAX_NOT_SUPPORTED", "DCERPC_BIND_ERR_PROPOSED_TRANSFER_SYNTAXES_NOT_SUPPORTED",

  }

  public void testGetExitingExecutorService_executorSetToUseDaemonThreads() {
    TestApplication application = new TestApplication();
    ThreadPoolExecutor executor =
        new ThreadPoolExecutor(1, 2, 3, SECONDS, new ArrayBlockingQueue<Runnable>(1));
    assertNotNull(application.getExitingExecutorService(executor));
    assertTrue(executor.getThreadFactory().newThread(EMPTY_RUNNABLE).isDaemon());
  }

---

"_I’m over the moon excited about **FastAPI**. It’s so fun!_"

<div style="text-align: right; margin-right: 10%;">Brian Okken - <strong><a href="https://pythonbytes.fm/episodes/show/123/time-to-right-the-py-wrongs?time_in_sec=855" target="_blank">Python Bytes</a> podcast host</strong> <a href="https://x.com/brianokken/status/1112220079972728832" target="_blank"><small>(ref)</small></a></div>

---

	{"Trim", " Ġİ0", "0 ", "Ġİ"},
	//empty string tests
	{"Trim", "abba", "", "abba"},
	{"Trim", "", "123", ""},
	{"Trim", "", "", ""},
	{"TrimLeft", "abba", "", "abba"},
	{"TrimLeft", "", "123", ""},
	{"TrimLeft", "", "", ""},
	{"TrimRight", "abba", "", "abba"},
	{"TrimRight", "", "123", ""},
	{"TrimRight", "", "", ""},
	{"TrimRight", "☺\xc0", "☺", "☺\xc0"},
	{"TrimPrefix", "aabb", "a", "abb"},

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToHex() throws Exception {
        assertEquals("010203", StringUtil.toHex(new byte[] { 1, 2, 3 }));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToHex2() throws Exception {
        assertEquals("0001", StringUtil.toHex(1));
    }

    /**

    }

    @Test
    public void hasMoreElements_errorCodeNonZero_returnsFalse() {
        DummyResponse d = new DummyResponse();
        d.setErrorCode(123); // non-zero error
        assertFalse(d.hasMoreElements(), "errorCode non-zero overrides hasMore flag");
    }

    @Test
    public void nextElement_firstCall_flipsIsPrimary() {

	_ = x[ErrObjectLockConfigurationNotAllowed-119]
	_ = x[ErrNoSuchObjectLockConfiguration-120]
	_ = x[ErrObjectLocked-121]
	_ = x[ErrInvalidRetentionDate-122]
	_ = x[ErrPastObjectLockRetainDate-123]
	_ = x[ErrUnknownWORMModeDirective-124]
	_ = x[ErrBucketTaggingNotFound-125]
	_ = x[ErrObjectLockInvalidHeaders-126]
	_ = x[ErrInvalidTagDirective-127]
	_ = x[ErrPolicyAlreadyAttached-128]