Test Strategy

DAG test strategy prioritizes correctness of graph processing, runtime execution, artifact integrity, and replay/diff semantics.

Visual Summary

flowchart TD
    unit[unit tests] --> integration[integration tests]
    integration --> contract[contract tests]
    contract --> regression[regression snapshots]
    regression --> release[release confidence]

Test Layers

• unit tests for core parsing, lowering, and identity behavior
• integration tests for app command routes and run flows
• contract tests for replay/diff schema lockstep and semantics
• regression snapshots for human-readable explain surfaces

Required Coverage Areas

• canonical graph parsing and validation failure modes
• execution plan and runtime fidelity classification
• artifact index/proof generation and verification paths
• replay and diff mismatch grouping and reason-code stability

Code Anchors

• crates/bijux-dag-core/tests/
• crates/bijux-dag-runtime/tests/
• crates/bijux-dag-app/tests/replay_diff_hardening_contract.rs

Next Reads

• Change Validation
• Invariants
• Known Limitations