public async Task Change_Account_Profile_Colours()
{
// arrange
session.Returns(await Json.FromFile("data\\users\\accountprofile.txt"));
session.ExpectPost("https://api.twitter.com/1.1/account/update_profile_colors.json");
var user = await session.ChangeAccountColours();
Assert.IsNotNull(user);
user.Description.ShouldBeEquivalentTo("Keep calm and rock on.");
}