System.Net.Http.Tests.HttpContentHeadersTest.LastModified_ReadAndWriteProperty_ValueMatchesPriorSetValue C# (CSharp) Method

        public void LastModified_ReadAndWriteProperty_ValueMatchesPriorSetValue()
        {
            Assert.Null(_headers.LastModified);

            DateTimeOffset expected = DateTimeOffset.Now;
            _headers.LastModified = expected;
            Assert.Equal(expected, _headers.LastModified);

            _headers.LastModified = null;
            Assert.Null(_headers.LastModified);
            Assert.False(_headers.Contains("Last-Modified"));
        }