public void Parse_ShouldRaiseArgumentNullException_ForNullArgument()
        {
            // Arrange.
            var input = (String)null;

            // Act.
            var action = new Action(() =>
            {
                var result = GeographicCoordinates.Parse(input);
            });

            // Assert.
            action.Should().Throw <ArgumentNullException>();
        }
        public void Parse_ShouldRaiseFormatException_ForInvalidFormatArgument()
        {
            // Arrange.
            var input = "42.42 : -32.7";

            // Act.
            var action = new Action(() =>
            {
                var result = GeographicCoordinates.Parse(input);
            });

            // Assert.
            action.Should().Throw <FormatException>();
        }