public async Task GetShoppingBooksReturnsBooks()
{
// Arragne
var fackRootObject = this.fixture.Create <Models.RootObject>();
A.CallTo(() => _fakeServiceClient.GetBooks())
.Returns(fackRootObject);
// Act
var actual = await _sut.GetShoppingBooks();
// Assert
actual.Should().HaveCountGreaterOrEqualTo(1);
}