tastypie_test.py 文件源码

def assertQueries(self, *prefixes):
        "Assert the correct queries are efficiently executed for a block."

        debug = connection.use_debug_cursor
        connection.use_debug_cursor = True

        count = len(connection.queries)
        yield

        if type(prefixes[0]) == int:
            assert prefixes[0] == len(connection.queries[count:])
        else:
            for prefix, query in itertools.izip_longest(prefixes, connection.queries[count:]):
                assert prefix and query and query['sql'].startswith(prefix), (prefix, query)

        connection.use_debug_cursor = debug