public async void Should_Insert()
{
// Arrange
var entities = FakeEntity.FakeEntities();
var newEntity = new FakeEntity
{
Id = 9
};
var repository = new CacheRepository <FakeEntity>(entities);
// Act
await repository.InsertAsync(UserId, newEntity);
var result = repository.Exists(newEntity.Id);
// Assert
Assert.IsTrue(result);
}