test_sample.py 文件源码

def test_fetch(data):
    settings.DEBUG = True
    base_queries = len(connection.queries)

    book = Book.objects.first()
    assert len(connection.queries) - base_queries == 1
    author = book.fetch_author()
    assert len(connection.queries) - base_queries == 2
    assert author.id == book.author_id