// ErrMissingFields expected.
		{
			inputSignElement: "Signature=",
			expectedSignStr:  "",
			expectedErrCode:  ErrMissingFields,
		},
		// Test case - 3.
		// SignElement with missing "SignatureTag",ErrMissingSignTag expected.
		{
			inputSignElement: "Sign=",
			expectedSignStr:  "",
			expectedErrCode:  ErrMissingSignTag,
		},
		// Test case - 4.
		// Test case with valid inputs.
		{