def test_simple_index_nx_to_memgraph(memgraph: Memgraph):
graph = nx.Graph()
graph.add_nodes_from([
(1, {
"labels": "L1",
"num": 123
}),
(2, {
"labels": "L1",
"num": 123
}),
(3, {
"labels": ["L1", "L2", "L3"],
"num": 123
}),
])
graph.add_edges_from([(1, 2), (1, 3)])
expected_indexes = {
MemgraphIndex("L1", "id"),
MemgraphIndex("L2", "id"),
MemgraphIndex("L3", "id"),
}
for query in nx_to_cypher(graph, NetworkXCypherConfig(create_index=True)):
memgraph.execute(query)
actual_indexes = set(memgraph.get_indexes())
assert actual_indexes == expected_indexes
def _check_for_index_hint(
host: str = "127.0.0.1",
port: int = 7687,
username: str = "",
password: str = "",
encrypted: bool = False,
):
"""Check if the there are indexes, if not show warnings."""
memgraph = Memgraph(host, port, username, password, encrypted)
indexes = memgraph.get_indexes()
if len(indexes) == 0:
logging.getLogger(__file__).warning(
"Be careful you do not have any indexes set up, the queries will take longer than expected!"
)