public void Parse_ValidValue_ReturnsLongValue()
        {
            // This test verifies that Parse() correctly calls TryParse().
            TimeSpanHeaderParser parser = TimeSpanHeaderParser.Parser;
            int index = 2;

            Assert.Equal(new TimeSpan(0, 0, 15), parser.ParseValue("  15", null, ref index));
            Assert.Equal(4, index);

            index = 0;
            Assert.Equal(new TimeSpan(0, 0, 30), parser.ParseValue("  030", null, ref index));
            Assert.Equal(5, index);
        }
        public void Parse_NullValue_Throw()
        {
            TimeSpanHeaderParser parser = TimeSpanHeaderParser.Parser;
            int index = 0;

            Assert.Throws <FormatException>(() => { parser.ParseValue(null, null, ref index); });
        }
        public void Parse_InvalidValue_Throw()
        {
            // This test verifies that Parse() correctly calls TryParse().
            TimeSpanHeaderParser parser = TimeSpanHeaderParser.Parser;
            int index = 0;

            Assert.Throws <FormatException>(() => { parser.ParseValue("a", null, ref index); });
        }