mirror of
https://github.com/hwchase17/langchain
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bccc9241ea
- **Description:** Updates to the Kuzu API had broken this functionality. These updates resolve those issues and add a new test to demonstrate the updates. - **Issue:** #11874 - **Dependencies:** No new dependencies - **Twitter handle:** @amirk08 Test results: ``` tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_query_no_params PASSED [ 33%] tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_query_params PASSED [ 66%] tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_refresh_schema PASSED [100%] =================================================== slowest 5 durations =================================================== 0.53s call tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_refresh_schema 0.34s call tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_query_no_params 0.28s call tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_query_params 0.03s teardown tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_refresh_schema 0.02s teardown tests/integration_tests/graphs/test_kuzu.py::TestKuzu::test_query_params ==================================================== 3 passed in 1.27s ==================================================== ```
66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
import shutil
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import tempfile
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import unittest
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from langchain_community.graphs import KuzuGraph
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EXPECTED_SCHEMA = """Node properties: [{'properties': [('name', 'STRING')], 'label': 'Movie'}, {'properties': [('name', 'STRING'), ('birthDate', 'STRING')], 'label': 'Person'}]
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Relationships properties: [{'properties': [], 'label': 'ActedIn'}]
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Relationships: ['(:Person)-[:ActedIn]->(:Movie)']
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""" # noqa: E501
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class TestKuzu(unittest.TestCase):
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def setUp(self) -> None:
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try:
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import kuzu
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except ImportError as e:
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raise ImportError(
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"Cannot import Python package kuzu. Please install it by running "
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"`pip install kuzu`."
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) from e
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self.tmpdir = tempfile.mkdtemp()
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self.kuzu_database = kuzu.Database(self.tmpdir)
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self.conn = kuzu.Connection(self.kuzu_database)
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self.conn.execute("CREATE NODE TABLE Movie (name STRING, PRIMARY KEY(name))")
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self.conn.execute("CREATE (:Movie {name: 'The Godfather'})")
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self.conn.execute("CREATE (:Movie {name: 'The Godfather: Part II'})")
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self.conn.execute(
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"CREATE (:Movie {name: 'The Godfather Coda: The Death of Michael "
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"Corleone'})"
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)
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self.kuzu_graph = KuzuGraph(self.kuzu_database)
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def tearDown(self) -> None:
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shutil.rmtree(self.tmpdir, ignore_errors=True)
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def test_query_no_params(self) -> None:
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result = self.kuzu_graph.query("MATCH (n:Movie) RETURN n.name ORDER BY n.name")
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excepted_result = [
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{"n.name": "The Godfather"},
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{"n.name": "The Godfather Coda: The Death of Michael Corleone"},
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{"n.name": "The Godfather: Part II"},
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]
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self.assertEqual(result, excepted_result)
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def test_query_params(self) -> None:
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result = self.kuzu_graph.query(
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query="MATCH (n:Movie) WHERE n.name = $name RETURN n.name",
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params={"name": "The Godfather"},
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)
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excepted_result = [
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{"n.name": "The Godfather"},
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]
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self.assertEqual(result, excepted_result)
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def test_refresh_schema(self) -> None:
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self.conn.execute(
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"CREATE NODE TABLE Person (name STRING, birthDate STRING, PRIMARY "
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"KEY(name))"
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)
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self.conn.execute("CREATE REL TABLE ActedIn (FROM Person TO Movie)")
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self.kuzu_graph.refresh_schema()
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schema = self.kuzu_graph.get_schema
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self.assertEqual(schema, EXPECTED_SCHEMA)
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