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caf9383ba1
Added 20 edge case tests based on code review recommendations: **Duplicate ID Validation (4 tests)**: - Multiple duplicate IDs (3+ nodes with same ID) - Duplicate IDs with same node type - Duplicate IDs with empty/null node names - Duplicate IDs with missing node properties **AI Agent Validator (16 tests)**: maxIterations edge cases (7 tests): - Boundary values: 0 (reject), 1 (accept), 51 (warn), MAX_SAFE_INTEGER (warn) - Invalid types: NaN (reject), negative decimal (reject) - Threshold testing: 50 vs 51 promptType validation (4 tests): - Whitespace-only text (reject) - Very long text 3200+ chars (accept) - undefined/null text (reject) System message validation (5 tests): - Empty/whitespace messages (suggest adding) - Very long messages >1000 chars (accept) - Special characters, emojis, unicode (accept) - Multi-line formatting (accept) - Boundary: 19 chars (warn), 20 chars (accept) **Test Quality Improvements**: - Fixed flaky system message test (changed from expect.stringContaining to .some()) - All tests are deterministic - Comprehensive inline comments - Follows existing test patterns All 20 new tests passing. Zero regressions. Concieved by Romuald Członkowski - www.aiadvisors.pl/en