thanos / livebook_test / 2b7ffb94b8189d31031a4609f0532507e743d2b6-PR-31

97%

main: 97%

Pull #31

github

What was covered
Preflight — unsupported Elixir/OTP versions, check! raise path, livebook unavailable/missing-export/version overrides, supports_livebook_version?/1, parse_otp_release/1, incompatible version formatting.

Exporter — livebook_unavailable, export exceptions (with/without troubleshooting hints), write_failed via read-only temp dir, injectable markdown_converter and temp_dir for tests.

LivebookTest — preflight: false, verbose logging for export/patch read/patch write failures via TestExporter + exporter_module injection.

Mix task — atom mode, integer timeout, invalid --verbose=not-a-boolean CLI parsing error path.

Test infrastructure
test/support/test_support.ex — with_env/4 helper
test/support/test_exporter.ex — stub exporter for pipeline error paths
The two remaining uncovered preflight lines are the real Code.ensure_loaded?(Livebook) branch and Application.spec(:livebook, :vsn) == nil — both are hard to hit reliably in tests without fragile module unloading.

85 of 89 new or added lines in 7 files covered. (95.51%)

290 of 299 relevant lines covered (96.99%)

12.69 hits per line