private key") } p, err := c.newPoint().ScalarBaseMult(key) if err != nil { // This is unreachable because the only error condition of // ScalarBaseMult is if the input is not the right size. panic("crypto/ecdh: internal error: nistec ScalarBaseMult failed for a fixed-size input") } publicKey := p.Bytes() if len(publicKey) == 1 { // The encoding of the identity is a single 0x00 byte. This is // unreachable because the only scalar that generates the identity is // zero, which is rejected above. panic("crypto/ecdh:...

        });

        // Test throwing and catching with cause
        RuntimeException cause = new RuntimeException("Cause");
        TransportException thrown = assertThrows(TransportException.class, () -> {
            throw new TransportException(cause);
        });
        assertEquals(cause, thrown.getCause());

        // Test throwing and catching with message and cause

        // IOException(Throwable) sets message to cause.toString()
        assertEquals(cause.toString(), ex.getMessage());
    }

    @Test
    @DisplayName("Should create SpnegoException with message and cause")
    void testWithMessageAndCause() {
        // Given
        String message = "SPNEGO handshake error";
        RuntimeException cause = new RuntimeException("root cause");

        // When

                haveAttributes = false;

                // This seems to be the only way to obtain a reliable (with respect to locking) file size here
                // It is more critical than other attributes because append mode depends on it.
                // We do only really care if we open for writing and not shared for writing
                // otherwise there are no guarantees anyway, but this stuff is legacy anyways.

        assertNull(topLevel.getCause().getCause().getCause().getCause());

        // Verify messages
        assertEquals("Top level", topLevel.getMessage());
        assertEquals("Level 1", level1.getMessage());
        assertEquals("Level 2", level2.getMessage());
        assertEquals("Level 3 - Root cause", level3.getMessage());
    }

    /**
     * Test serialization
     */

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void testConstructorWithNullMessageAndCause() {
        IOException cause = new IOException("IO error");
        CurlException exception = new CurlException(null, cause);

        assertNull(exception.getMessage());
        assertSame(cause, exception.getCause());
    }

    @Test

        // Expect the message to be set correctly and cause to be null
        assertEquals(errorMessage, e.getMessage());
        assertNull(e.getCause());
    }

    /**
     * Test the constructor with a cause.
     */
    @Test
    void testCauseConstructor() {
        Throwable cause = new RuntimeException("Root cause");
        PACDecodingException e = new PACDecodingException(cause);

        // Then
        assertSame(cause, exception.getCause(), "Crypto cause should be preserved");
        assertEquals(cause.toString(), exception.getMessage(), "Message should be cause.toString() when only cause is provided");
    }

    @Test
    @DisplayName("Message and cause constructor should preserve both crypto parameters")
    void testMessageAndCauseConstructor() {

        // Arrange - use a real cause so message is derived from cause.toString()
        Throwable cause = new IllegalStateException("proto mismatch");
        String expectedMessage = cause.toString();

        // Act
        SMBProtocolDowngradeException ex = new SMBProtocolDowngradeException(cause);

        // Assert - cause preserved, message derived from cause
        assertSame(cause, ex.getCause());

    @Test
    @DisplayName("Should provide correct cause for constructor with cause only")
    void testCauseOnlyConstructorMessage() {
        // Given
        RuntimeException cause = new RuntimeException("Specific cause message");

        // When
        RuntimeCIFSException exception = new RuntimeCIFSException(cause);

        // Then
        assertEquals(cause, exception.getCause());
        assertNotNull(exception.getMessage());