assertNotNull(appType);
        // appType should be either empty string or the actual env value
        assertTrue(appType.isEmpty() || appType.length() > 0);
    }

    public void test_getOverrideConfPath() {
        // Test when app type is not docker
        OptionalEntity<String> confPath = ResourceUtil.getOverrideConfPath();
        assertNotNull(confPath);
        // Should be empty when not docker app type

        // Should pass without exception
    }

    @Test
    public void testValidPath() throws Exception {
        validator.validatePath("\\share\\folder\\file.txt");
        validator.validatePath("C:\\Windows\\System32");
        validator.validatePath(null); // Null should be allowed
        validator.validatePath(""); // Empty should be allowed
    }

    @Test

        directoryLeaseManager.handleDirectoryChange(directoryPath, "file2.txt", DirectoryChangeNotifier.DirectoryChangeType.FILE_MODIFIED);
        assertFalse(entry.hasChild("file2.txt")); // Should be removed to force refresh

        // Test DIRECTORY_RENAMED - should invalidate entire cache
        entry.updateChild("file3.txt", 3072L, 3000L, false, 0x20, 700L, 1000L);
        entry.markComplete();

        CustomSmbTree inner = middle.unwrap(CustomSmbTree.class);

        assertNotNull(middle, "Middle tree should not be null");
        assertNotNull(inner, "Inner tree should not be null");
        assertSame(middleTree, middle, "Should return correct middle tree");
        assertSame(innerTree, inner, "Should return correct inner tree");
    }

    /**
     * Test for unwrap with incompatible type.

        // Test the no-argument constructor
        ConnectionTimeoutException exception = new ConnectionTimeoutException();
        assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testStringConstructor() {
        // Test the constructor with a message

        for (final String cmd : processedCommands) {
            assertFalse("Command should not contain ${url}", cmd.contains("${url}"));
            assertFalse("Command should not contain ${outputFile}", cmd.contains("${outputFile}"));
            assertTrue("Command should contain temp path", cmd.contains(tempPath));
            assertTrue("Command should contain output path", cmd.contains(outputPath));
        }
    }

   * should use this method over {@link #setCountCheckReturnValue(Object, int)} when they expect
   * {@code setCount()} to throw an exception, as checking the return value could produce an
   * incorrect error message like "setCount() should return the original count" instead of the
   * message passed to a later invocation of {@code fail()}, like "setCount should throw
   * UnsupportedOperationException."
   */

    assertNull(
        "putIfAbsent(notPresent, value) should return null", getMap().putIfAbsent(k3(), v3()));
    expectAdded(e3());
  }

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPutIfAbsent_supportedPresent() {
    assertEquals(
        "putIfAbsent(present, value) should return existing value",
        v0(),
        getMap().putIfAbsent(k0(), v3()));

        // Act & Assert
        assertNotNull(impl, "Implementation instance should not be null");
        assertTrue(SessionSetupHandler.class.isInstance(impl), "Instance should be assignable to interface");
        assertTrue(SessionSetupHandler.class.isAssignableFrom(impl.getClass()), "Type should be assignable");
    }

    @Test
    @DisplayName("Edge: null is not an instance of the interface")

        assertEquals(2, problems.size(), "Should collect both problems");
        assertEquals(Problem.Severity.ERROR, problems.get(0).getSeverity(), "First problem should be ERROR");
        assertEquals("Error message", problems.get(0).getMessage(), "First problem should have correct message");
        assertEquals(Problem.Severity.WARNING, problems.get(1).getSeverity(), "Second problem should be WARNING");
    }