}

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 2, 4, 8, 16 })
    @DisplayName("Test verify method with different extra padding values")
    void testVerifyWithDifferentExtraPadding(int extraPad) {
        // Arrange
        int offset = 0;
        int length = testData.length;
        when(signingDigest.verify(testData, offset, length, extraPad, message)).thenReturn(true);