public void RemoveCategoryRemovesFromCacheTest()
{
var expected = Model.Create <Category>();
var cacheKey = "Category|" + expected.Group + "|" + expected.Name;
var cache = Substitute.For <IMemoryCache>();
var config = Substitute.For <ICacheConfig>();
var sut = new CategoryCache(cache, config);
sut.RemoveCategory(expected.Group, expected.Name);
cache.Received().Remove(cacheKey);
}