38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
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# Copyright 2022 Memgraph Ltd.
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#
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# Use of this software is governed by the Business Source License
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# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
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# License, and you may not use this file except in compliance with the Business Source License.
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#
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# As of the Change Date specified in that file, in accordance with
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# the Business Source License, use of this software will be governed
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# by the Apache License, Version 2.0, included in the file
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# licenses/APL.txt.
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import typing
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import mgclient
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import sys
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import pytest
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import time
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from common import *
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def test_optional_match(connection):
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wait_for_shard_manager_to_initialize()
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cursor = connection.cursor()
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assert has_n_result_row(cursor, "CREATE (n :label {property:0})", 0)
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results = execute_and_fetch_all(
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cursor, "MATCH (n:label) OPTIONAL MATCH (n:label)-[:TO]->(parent:label) RETURN parent"
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)
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assert len(results) == 1
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assert has_n_result_row(cursor, "CREATE (n :label {property:2})", 0)
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assert has_n_result_row(cursor, "MATCH (n), (m) CREATE (n)-[:TO]->(m)", 0)
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assert has_n_result_row(cursor, "MATCH (n:label) OPTIONAL MATCH (n)-[r:TO]->(m:label) RETURN r", 4)
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if __name__ == "__main__":
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sys.exit(pytest.main([__file__, "-rA"]))
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