mirror of
https://github.com/trustgraph-ai/trustgraph.git
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338 lines
No EOL
13 KiB
Python
338 lines
No EOL
13 KiB
Python
"""
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Tests for Neo4j triples query service
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"""
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import pytest
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from unittest.mock import MagicMock, patch
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from trustgraph.query.triples.neo4j.service import Processor
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from trustgraph.schema import Value, TriplesQueryRequest
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class TestNeo4jQueryProcessor:
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"""Test cases for Neo4j query processor"""
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@pytest.fixture
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def processor(self):
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"""Create a processor instance for testing"""
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with patch('trustgraph.query.triples.neo4j.service.GraphDatabase'):
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return Processor(
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taskgroup=MagicMock(),
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id='test-neo4j-query',
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graph_host='bolt://localhost:7687'
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)
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def test_create_value_with_http_uri(self, processor):
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"""Test create_value with HTTP URI"""
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result = processor.create_value("http://example.com/resource")
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assert isinstance(result, Value)
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assert result.value == "http://example.com/resource"
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assert result.is_uri is True
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def test_create_value_with_https_uri(self, processor):
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"""Test create_value with HTTPS URI"""
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result = processor.create_value("https://example.com/resource")
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assert isinstance(result, Value)
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assert result.value == "https://example.com/resource"
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assert result.is_uri is True
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def test_create_value_with_literal(self, processor):
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"""Test create_value with literal value"""
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result = processor.create_value("just a literal string")
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assert isinstance(result, Value)
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assert result.value == "just a literal string"
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assert result.is_uri is False
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def test_create_value_with_empty_string(self, processor):
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"""Test create_value with empty string"""
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result = processor.create_value("")
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assert isinstance(result, Value)
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assert result.value == ""
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assert result.is_uri is False
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def test_create_value_with_partial_uri(self, processor):
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"""Test create_value with string that looks like URI but isn't complete"""
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result = processor.create_value("http")
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assert isinstance(result, Value)
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assert result.value == "http"
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assert result.is_uri is False
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def test_create_value_with_ftp_uri(self, processor):
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"""Test create_value with FTP URI (should not be detected as URI)"""
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result = processor.create_value("ftp://example.com/file")
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assert isinstance(result, Value)
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assert result.value == "ftp://example.com/file"
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assert result.is_uri is False
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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def test_processor_initialization_with_defaults(self, mock_graph_db):
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"""Test processor initialization with default parameters"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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processor = Processor(taskgroup=taskgroup_mock)
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assert processor.db == 'neo4j'
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mock_graph_db.driver.assert_called_once_with(
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'bolt://neo4j:7687',
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auth=('neo4j', 'password')
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)
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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def test_processor_initialization_with_custom_params(self, mock_graph_db):
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"""Test processor initialization with custom parameters"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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processor = Processor(
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taskgroup=taskgroup_mock,
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graph_host='bolt://custom:7687',
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username='queryuser',
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password='querypass',
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database='customdb'
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)
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assert processor.db == 'customdb'
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mock_graph_db.driver.assert_called_once_with(
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'bolt://custom:7687',
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auth=('queryuser', 'querypass')
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)
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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@pytest.mark.asyncio
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async def test_query_triples_spo_query(self, mock_graph_db):
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"""Test SPO query (all values specified)"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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# Mock query results - both queries return one record each
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mock_records = [MagicMock()]
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mock_driver.execute_query.return_value = (mock_records, None, None)
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processor = Processor(taskgroup=taskgroup_mock)
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# Create query request
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query = TriplesQueryRequest(
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user='test_user',
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collection='test_collection',
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s=Value(value="http://example.com/subject", is_uri=True),
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p=Value(value="http://example.com/predicate", is_uri=True),
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o=Value(value="literal object", is_uri=False),
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limit=100
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)
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result = await processor.query_triples(query)
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# Verify both literal and URI queries were executed
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assert mock_driver.execute_query.call_count == 2
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# Verify result contains the queried triple (appears twice - once from each query)
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assert len(result) == 2
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assert result[0].s.value == "http://example.com/subject"
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assert result[0].p.value == "http://example.com/predicate"
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assert result[0].o.value == "literal object"
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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@pytest.mark.asyncio
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async def test_query_triples_sp_query(self, mock_graph_db):
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"""Test SP query (subject and predicate specified)"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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# Mock query results with different objects
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mock_record1 = MagicMock()
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mock_record1.data.return_value = {"dest": "literal result"}
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mock_record2 = MagicMock()
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mock_record2.data.return_value = {"dest": "http://example.com/uri_result"}
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mock_driver.execute_query.side_effect = [
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([mock_record1], None, None), # Literal query
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([mock_record2], None, None) # URI query
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]
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processor = Processor(taskgroup=taskgroup_mock)
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# Create query request
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query = TriplesQueryRequest(
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user='test_user',
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collection='test_collection',
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s=Value(value="http://example.com/subject", is_uri=True),
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p=Value(value="http://example.com/predicate", is_uri=True),
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o=None,
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limit=100
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)
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result = await processor.query_triples(query)
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# Verify both literal and URI queries were executed
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assert mock_driver.execute_query.call_count == 2
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# Verify results contain different objects
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assert len(result) == 2
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assert result[0].s.value == "http://example.com/subject"
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assert result[0].p.value == "http://example.com/predicate"
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assert result[0].o.value == "literal result"
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assert result[1].s.value == "http://example.com/subject"
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assert result[1].p.value == "http://example.com/predicate"
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assert result[1].o.value == "http://example.com/uri_result"
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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@pytest.mark.asyncio
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async def test_query_triples_wildcard_query(self, mock_graph_db):
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"""Test wildcard query (no constraints)"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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# Mock query results
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mock_record1 = MagicMock()
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mock_record1.data.return_value = {"src": "http://example.com/s1", "rel": "http://example.com/p1", "dest": "literal1"}
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mock_record2 = MagicMock()
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mock_record2.data.return_value = {"src": "http://example.com/s2", "rel": "http://example.com/p2", "dest": "http://example.com/o2"}
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mock_driver.execute_query.side_effect = [
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([mock_record1], None, None), # Literal query
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([mock_record2], None, None) # URI query
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]
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processor = Processor(taskgroup=taskgroup_mock)
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# Create query request
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query = TriplesQueryRequest(
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user='test_user',
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collection='test_collection',
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s=None,
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p=None,
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o=None,
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limit=100
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)
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result = await processor.query_triples(query)
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# Verify both literal and URI queries were executed
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assert mock_driver.execute_query.call_count == 2
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# Verify results contain different triples
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assert len(result) == 2
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assert result[0].s.value == "http://example.com/s1"
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assert result[0].p.value == "http://example.com/p1"
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assert result[0].o.value == "literal1"
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assert result[1].s.value == "http://example.com/s2"
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assert result[1].p.value == "http://example.com/p2"
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assert result[1].o.value == "http://example.com/o2"
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@patch('trustgraph.query.triples.neo4j.service.GraphDatabase')
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@pytest.mark.asyncio
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async def test_query_triples_exception_handling(self, mock_graph_db):
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"""Test exception handling during query processing"""
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taskgroup_mock = MagicMock()
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mock_driver = MagicMock()
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mock_graph_db.driver.return_value = mock_driver
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# Mock execute_query to raise exception
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mock_driver.execute_query.side_effect = Exception("Database connection failed")
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processor = Processor(taskgroup=taskgroup_mock)
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# Create query request
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query = TriplesQueryRequest(
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user='test_user',
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collection='test_collection',
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s=Value(value="http://example.com/subject", is_uri=True),
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p=None,
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o=None,
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limit=100
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)
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# Should raise the exception
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with pytest.raises(Exception, match="Database connection failed"):
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await processor.query_triples(query)
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def test_add_args_method(self):
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"""Test that add_args properly configures argument parser"""
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from argparse import ArgumentParser
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from unittest.mock import patch
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parser = ArgumentParser()
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# Mock the parent class add_args method
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with patch('trustgraph.query.triples.neo4j.service.TriplesQueryService.add_args') as mock_parent_add_args:
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Processor.add_args(parser)
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# Verify parent add_args was called
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mock_parent_add_args.assert_called_once()
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# Verify our specific arguments were added
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# Parse empty args to check defaults
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args = parser.parse_args([])
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assert hasattr(args, 'graph_host')
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assert args.graph_host == 'bolt://neo4j:7687'
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assert hasattr(args, 'username')
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assert args.username == 'neo4j'
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assert hasattr(args, 'password')
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assert args.password == 'password'
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assert hasattr(args, 'database')
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assert args.database == 'neo4j'
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def test_add_args_with_custom_values(self):
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"""Test add_args with custom command line values"""
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from argparse import ArgumentParser
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from unittest.mock import patch
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parser = ArgumentParser()
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with patch('trustgraph.query.triples.neo4j.service.TriplesQueryService.add_args'):
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Processor.add_args(parser)
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# Test parsing with custom values
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args = parser.parse_args([
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'--graph-host', 'bolt://custom:7687',
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'--username', 'queryuser',
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'--password', 'querypass',
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'--database', 'querydb'
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])
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assert args.graph_host == 'bolt://custom:7687'
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assert args.username == 'queryuser'
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assert args.password == 'querypass'
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assert args.database == 'querydb'
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def test_add_args_short_form(self):
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"""Test add_args with short form arguments"""
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from argparse import ArgumentParser
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from unittest.mock import patch
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parser = ArgumentParser()
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with patch('trustgraph.query.triples.neo4j.service.TriplesQueryService.add_args'):
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Processor.add_args(parser)
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# Test parsing with short form
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args = parser.parse_args(['-g', 'bolt://short:7687'])
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assert args.graph_host == 'bolt://short:7687'
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@patch('trustgraph.query.triples.neo4j.service.Processor.launch')
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def test_run_function(self, mock_launch):
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"""Test the run function calls Processor.launch with correct parameters"""
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from trustgraph.query.triples.neo4j.service import run, default_ident
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run()
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mock_launch.assert_called_once_with(
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default_ident,
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"\nTriples query service for neo4j.\nInput is a (s, p, o) triple, some values may be null. Output is a list of\ntriples.\n"
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) |