Function test_delete_operations

graphlite/tests/dml_tests.rs:248–381

()

#[test]
fn test_delete_operations() {
    let fixture = TestFixture::empty().expect("Failed to create test fixture");

    // Create schema and graph for this test (ISO GQL compliant)
    fixture
        .query(&format!(
            "CREATE SCHEMA IF NOT EXISTS /{}",
            fixture.schema_name()
        ))
        .unwrap();
    fixture
        .query(&format!(
            "CREATE GRAPH /{}/delete_test_graph",
            fixture.schema_name()
        ))
        .unwrap();
    fixture
        .query(&format!(
            "SESSION SET GRAPH /{}/delete_test_graph",
            fixture.schema_name()
        ))
        .unwrap();

    // Insert test data for deletion
    fixture.assert_query_succeeds(
        "INSERT (delete_me:DeleteTest {name: 'ToDelete'}),
                (keep_me:DeleteTest {name: 'ToKeep'}),
                (other:Other {name: 'Other'})",
    );

    fixture.assert_query_succeeds(
        "MATCH (d:DeleteTest {name: 'ToDelete'}), (o:Other)
         INSERT (d)-[:RELATED_TO]->(o)",
    );

    // Test simple node deletion with relationships (requires DETACH)
    fixture.assert_query_succeeds(
        "MATCH (d:DeleteTest {name: 'ToDelete'}) 
         DETACH DELETE d",
    );

    // Verify deletion - use query instead of assert_first_value to handle empty results
    let result = fixture
        .query(
            "MATCH (d:DeleteTest {name: 'ToDelete'}) 
         RETURN count(d) as count",
        )
        .unwrap();

    // COUNT should return 1 row even with 0 count
    assert_eq!(
        result.rows.len(),
        1,
        "COUNT should always return exactly 1 row"
    );
    let count = result.rows[0].values.get("count").unwrap();
    assert_eq!(
        count,