public void it_should_set_a_header() { HeaderCollection headers = new HeaderCollection(); headers.Set(new Header("Header1", new[] { new HeaderValue("Value1", new HeaderParameter("Parameter1", "ParameterValue1")) })); headers.Set(new Header("Header1", "Value2")); headers.Count.Should().Be(1); headers["Header1"].Values.Count.Should().Be(1); headers["Header1"].Values.First().Parameters.Count.Should().Be(0); }