public async Task UpdatePhotoTags()
{
var photoIds = _fixture.CreateMany <int>(5);
var tagStates = _fixture.CreateMany <TagState>(5);
var batchUpdate = new BatchUpdateTags
{
PhotoIds = photoIds.ToList(),
TagStates = tagStates.ToList()
};
_photosService.Setup(m => m.UpdatePhotoTags(It.IsAny <List <int> >(), It.IsAny <List <string> >(), It.IsAny <List <int> >()));
var response = await _tagsController.TagPhotos(batchUpdate);
_photosService.Verify(m => m.UpdatePhotoTags(It.IsAny <List <int> >(), It.IsAny <List <string> >(), It.IsAny <List <int> >()),
Times.Once);
Assert.IsType <OkResult>(response);
}