public void HeaderDictionary_GetHeaders_Success() { // Arrange var context = new OwinContext(); context.Request.Headers.Add(new KeyValuePair <string, string[]>("Authorization", new [] { "Basic 12345:6789" })); var parser = new RequestParser(); // Act var result = parser.HeaderDictionary(context.Environment); // Assert result.Count.Should().Be(1); result["Authorization"].Should().Be("Basic 12345:6789"); }