//[TestMethod]
public void ShouldDecodePDFString()
{
// Arrange
string encodedString = @"";
// Act
var result = StringUtility.Base64DecodeString(encodedString);
//File.WriteAllBytes("D:/test.pdf", StringUtility.Base64Decode(encodedString));
// Assert
//Assert.IsTrue(result != null, "String cannot be decoded.");
}