[COG-767] Tests for duplicated edges and/or nodes

[hajdul88]

Write an end-to-end test to identify duplicated edges and/or nodes by running both the cognify and code_graph pipelines on test data. The test should follow the structure of the tests in cognee/cognee/tests (e.g., test_neo4j.py).

Tasks:

• Create/update a test dataset for running both pipelines (cognify and code_graph).
• Implement an end-to-end test to process the test data through both pipelines.
• Validate the resulting graph to detect and report any duplicated edges or nodes.
• Follow the test structure and conventions used in cognee/cognee/tests

_{From SyncLinear.com | COG-767}

[hajdul88]

Kk noted

[hajdul88]

Fair, same as previous comment. Open bugs if takes more that 1, 2 h of debugging, create a blocker

[hajdul88]

Same, it was me😄 can get complicated what do we want to test so here i am the one to blame for the 5 points

[hajdul88]

3 points, 1 to 2 days of work max