public void IsNegative_FValue_ReturnsTrue(string input)
        {
            // arrange
            bool expected = true;

            // act
            ResponseParser sut    = new ResponseParser();
            bool           actual = sut.IsNegative(input);

            // assert
            Assert.AreEqual(expected, actual);
        }
        public void IsNegative_NotNegative_ReturnsFalse()
        {
            // arrange
            string input    = "Hello";
            bool   expected = false;

            // act
            ResponseParser sut    = new ResponseParser();
            bool           actual = sut.IsNegative(input);

            // assert
            Assert.AreEqual(expected, actual);
        }