public async Task RequestsTheCorrectUrl() { var connection = Substitute.For <IApiConnection>(); var client = new TeamsClient(connection); await client.GetAllPendingInvitations(1); connection.Received().GetAll <OrganizationMembershipInvitation>( Arg.Is <Uri>(u => u.ToString() == "teams/1/invitations"), null, "application/vnd.github.korra-preview+json", Args.ApiOptions); }