assertEquals("SSO process failed", topLevel.getMessage());
        assertEquals(level1, topLevel.getCause());
        assertEquals("Level 1: Authentication service error", topLevel.getCause().getMessage());
        assertEquals(level2, topLevel.getCause().getCause());
        assertEquals("Level 2: User lookup failed", topLevel.getCause().getCause().getMessage());

        ThemeException exception = new ThemeException(message, cause);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertEquals("Config file not found", exception.getCause().getMessage());
    }

    @Test
    public void test_constructorWithNullMessage() {
        // Test constructor with null message

        LdapConfigurationException exception3 = new LdapConfigurationException("Error 3");

        assertEquals("Error 1", exception1.getMessage());
        assertEquals("Error 2", exception2.getMessage());
        assertEquals("Error 3", exception3.getMessage());

        // Ensure they are different instances
        assertNotSame(exception1, exception2);
        assertNotSame(exception2, exception3);

        assertEquals("Level 3", level3.getMessage());
        assertEquals(level2, level3.getCause());
        assertEquals("Level 2", level3.getCause().getMessage());
        assertEquals(level1, level3.getCause().getCause());
        assertEquals("Level 1", level3.getCause().getCause().getMessage());
    }

    @Test
    public void test_throwAndCatchException() {

        // Test that getMessage returns the same value consistently
        String message = "Consistent message";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        String firstCall = exception.getMessage();
        String secondCall = exception.getMessage();
        String thirdCall = exception.getMessage();

        assertEquals(firstCall, secondCall);

    /**
     * Constructs a new CurlException with the specified detail message and cause.
     *
     * @param message the detail message (which is saved for later retrieval by the {@link #getMessage()} method).
     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
     *              (A {@code null} value is permitted, and indicates that the cause is nonexistent or unknown.)

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNotNull(exception.getCause());
        assertEquals(cause, exception.getCause());
        assertEquals("Underlying error", exception.getCause().getMessage());
    }

    @Test
    public void test_constructor_withNullMessage() {
        // Test constructor with null message

        assertEquals("service1 is not available.", exception1.getMessage());

        ContainerNotAvailableException exception2 = new ContainerNotAvailableException("service2", new RuntimeException());
        assertEquals("service2 is not available.", exception2.getMessage());

        ContainerNotAvailableException exception3 = new ContainerNotAvailableException(new RuntimeException());

        assertEquals("Top level error", exception.getMessage());
        assertEquals(middleCause, exception.getCause());
        assertEquals("Middle cause", exception.getCause().getMessage());
        assertEquals(rootCause, exception.getCause().getCause());
        assertEquals("Root cause", exception.getCause().getCause().getMessage());
    }

    @Test
    public void test_throwAndCatch() {

        // Verify the complete chain
        assertEquals("Plugin failure", exception.getMessage());
        assertEquals(level1, exception.getCause());
        assertEquals("Runtime error", exception.getCause().getMessage());
        assertEquals(level2, exception.getCause().getCause());
        assertEquals("Invalid state", exception.getCause().getCause().getMessage());
        assertEquals(level3, exception.getCause().getCause().getCause());