public void ConvertToPdf_WrongFileType_ThrowException()
        {
            ImageToPdf.Classes.
            PdfSharpCoreImageToPdfConverter converter = new PdfSharpCoreImageToPdfConverter();

            Assert.ThrowsException <InvalidDataException>(() => converter.ConvertToPdf("Test.txt", "Test.pdf"));
        }
        public void ConvertToPdf_EmptyPaths_ThrowException()
        {
            ImageToPdf.Classes.
            PdfSharpCoreImageToPdfConverter converter = new PdfSharpCoreImageToPdfConverter();

            Assert.ThrowsException <ArgumentNullException>(() => converter.ConvertToPdf("", ""));
        }