public async Task Get_Is_User_On_List()
{
// arrange
session.Returns(await Json.FromFile("data\\lists\\isuseronlist.txt"));
session.ExpectGet("https://api.twitter.com/1.1/lists/members/show.json");
var subs = await session.IsUserOnList(23, "slug here");
Assert.IsNotNull(subs);
subs.UserId.ShouldBeEquivalentTo(657693);
}