Scope

• Module issue: [module:graph] Development Status 2026-07-18 #5649 (graph)
• Repro binary: module_graph_test_entity_type_constraints_focused.exe
• Repro test: EntityTypeConstraintTests.ETC09_UnknownEdgeTypes

Reproduction

• Command: module_graph_test_entity_type_constraints_focused.exe --gtest_filter=EntityTypeConstraintTests.ETC09_UnknownEdgeTypes --gtest_color=no
• Observed: FAIL (exit 1)
• Assertion: tests/graph/test_entity_type_constraints.cpp:206
  • expected true for isEdgeTypeAllowed("Person","Person","unknownEdge")
  • actual false

Expected Behavior

• Unknown edge type behavior must match test contract or test contract must be explicitly corrected and documented.

Acceptance Criteria

• Contract decision documented (code behavior vs. test expectation).
• Either implementation fixed or test corrected with rationale.
• Focused repro test passes locally on windows-release.
• Full focused binary module_graph_test_entity_type_constraints_focused.exe passes.
• Module issue [module:graph] Development Status 2026-07-18 #5649 evidence updated from FAIL to PASS with command/result.