public void Should_Return_All_Layers()
        {
            var fakeContext = new FakeContext("GetAllLayers");

            fakeContext.FillWith <Layer>();

            using (var context = new MainContext(fakeContext.FakeOptions))
            {
                var layerCountIndDb = context.Layer.Count();
                var repository      = new LayerRepository(context);
                var validator       = new LayerValidator();
                var service         = new LayerService(repository, validator);

                Assert.Equal(layerCountIndDb, service.GetAll().Count());
                repository.Dispose();
            }
        }