test_vectorstore_still_empty() — langchain Function Reference

Source Code

libs/standard-tests/langchain_tests/integration_tests/vectorstores.py lines 186–203

    def test_vectorstore_still_empty(self, vectorstore: VectorStore) -> None:
        """Test that the `VectorStore` is still empty.

        This test should follow a test that adds documents.

        This just verifies that the fixture is set up properly to be empty
        after each test.

        ??? note "Troubleshooting"

            If this test fails, check that the test class (i.e., sub class of
            `VectorStoreIntegrationTests`) correctly clears the vector store in the
            `finally` block.
        """
        if not self.has_sync:
            pytest.skip("Sync tests not supported.")

        assert vectorstore.similarity_search("foo", k=1) == []