public async Task TestPostRemoveCollaboratorAsync()
{
userProvider.Setup(x => x.GetBusinessUser(It.IsAny <IWebApiUser>())).Returns(new Business.Service.User(1));
var response = await controller.PostRemoveCollaboratorAsync(new ProgramCollaboratorBindingModel());
authorizationHandler.Verify(x => x.HandleDeletedPermissionBindingModelAsync(It.IsAny <IDeletedPermissionBindingModel>(), It.IsAny <ApiController>()), Times.Once());
}
