public void Test_SetLongitude()
        {
            // Arrange
            double      expected = -1.66;
            GPSLocation GPSL     = new GPSLocation(52.4, 0);

            // Act
            GPSL.setLongitude(-1.66);
            double actual = GPSL.getLongitude();

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