public void IsValidPhoneNumber_IsBlank_GetExceptionBack()
        {
            //Arrange
            var contactValidator = new ContactValidator();
            //Act
            string PhoneNumber = "";

            //Assert
            contactValidator.IsValidPhoneNumber(PhoneNumber);
        }
        public void IsValidPhoneNumber_IsValidNegCaseLetters_GetExceptionBack()
        {
            //Arrange
            var contactValidator = new ContactValidator();
            //Act
            string PhoneNumber = "abcdwf";

            contactValidator.IsValidPhoneNumber(PhoneNumber);
            //Assert
            //Assert.IsTrue(actual);
        }
        public void IsValidPhoneNumber_IsValidNegative_GetExceptionBack()
        {
            //Arrange
            var contactValidator = new ContactValidator();
            //Act
            string PhoneNumber = "033----)4(567896";

            contactValidator.IsValidPhoneNumber(PhoneNumber);
            //Assert
            //Assert.IsTrue(actual);
        }
        public void IsValidPhoneNumber_IsValidPositive7_GetTrueBack()
        {
            //Arrange
            var contactValidator = new ContactValidator();
            //Act
            string PhoneNumber = "18005551234";

            bool actual = contactValidator.IsValidPhoneNumber(PhoneNumber);

            //Assert
            Assert.IsTrue(actual);
        }
        public void IsValidPhoneNumber_IsValidPositive10_GetTrueBack()
        {
            //Arrange
            var contactValidator = new ContactValidator();
            //Act
            string PhoneNumber = "918880344456";

            bool actual = contactValidator.IsValidPhoneNumber(PhoneNumber);

            //Assert
            Assert.IsTrue(actual);
        }