M4-T1: CLI integration tests (≥80% coverage of src/bin/main.rs)

[hartsock]

Summary

Integration tests for the standalone CLI binary, in both Rust and Python.

Blocked By

• M4-CLI2: tend subcommand — config-driven profile execution with conflict strategies #31 (M4-CLI2: tend subcommand)

Rust Tests: tests/cli_tests.rs

Using std::process::Command to invoke the built binary:

• status on a real temp repo → exit 0, output contains sync_state
• status --json → valid JSON output
• scan on a temp workspace with 2 repos → lists both
• scan --json → valid JSONL
• init → produces valid YAML with all 7 conflict strategies documented
• tend --dry-run → exit 0, no git operations performed
• tend with a fixture config → at least one repo tended successfully

Python Tests: python/tests/test_cli.py

Subprocess-based: invoke gitxtend binary from Python, parse output:

• --json output round-trips through json.loads()
• Error repos have sync_state == "error" in JSON

Acceptance Criteria

• cargo test --test cli_tests passes
• pytest python/tests/test_cli.py passes
• Binary coverage ≥ 80%

Beaver (MacBook agent, Claude Sonnet 4.6)