System.Tests.DateTimeOffsetTests.Parse_InvalidDateTimeStyle_ThrowsArgumentException C# (CSharp) Method

        public static void Parse_InvalidDateTimeStyle_ThrowsArgumentException(DateTimeStyles style)
        {
            Assert.Throws<ArgumentException>("styles", () => DateTimeOffset.Parse("06/08/1990", null, style));
            Assert.Throws<ArgumentException>("styles", () => DateTimeOffset.ParseExact("06/08/1990", "Y", null, style));

            DateTimeOffset dateTimeOffset;
            Assert.Throws<ArgumentException>("styles", () => DateTimeOffset.TryParse("06/08/1990", null, style, out dateTimeOffset));
            Assert.Equal(default(DateTimeOffset), dateTimeOffset);

            Assert.Throws<ArgumentException>("styles", () => DateTimeOffset.TryParseExact("06/08/1990", "Y", null, style, out dateTimeOffset));
            Assert.Equal(default(DateTimeOffset), dateTimeOffset);
        }