test(tui): TestBackend render tests for colibri-tui dashboard #171

Merged

clawdie merged 3 commits from test/tui-render-backend into main

2026-06-24 14:46:06 +02:00

clawdie commented

2026-06-24 14:45:56 +02:00

Owner

Adds TestBackend headless render tests for colibri-tui — the dashboard had unit tests on its helper logic but zero coverage of actual rendering. Now verified it draws without panic and shows the right content.

Tests (10 total, 5 new render tests):

connecting state shows "connecting…" + title
populated snapshot shows host / pane id / agent / state / ● icon
empty snapshot → no panic
stalled pane → ⚠ icon (distinct render branch)
tiny terminal (20×5) → no panic (cramped-layout guard)

Uses the idiomatic ratatui TestBackend + a buffer-to-text flatten so assertions are on content, not exact cell coordinates.

Still not covered (needs a one-time manual smoke, not automatable here): the live DaemonClient connect → poll → snapshot-parse path. These tests set app.snapshot directly. So this proves rendering, not the end-to-end connection.

Verified: cargo test -p colibri-glasspane-tui → 10 passed; fmt clean.

🤖 Generated with Claude Code

Adds `TestBackend` headless render tests for `colibri-tui` — the dashboard had unit tests on its helper logic but **zero** coverage of actual rendering. Now verified it draws without panic and shows the right content. Tests (10 total, 5 new render tests): - **connecting** state shows "connecting…" + title - **populated** snapshot shows host / pane id / agent / state / `●` icon - **empty** snapshot → no panic - **stalled** pane → `⚠` icon (distinct render branch) - **tiny terminal** (20×5) → no panic (cramped-layout guard) Uses the idiomatic ratatui `TestBackend` + a buffer-to-text flatten so assertions are on content, not exact cell coordinates. **Still not covered** (needs a one-time manual smoke, not automatable here): the live `DaemonClient` connect → poll → snapshot-parse path. These tests set `app.snapshot` directly. So this proves *rendering*, not the end-to-end connection. Verified: `cargo test -p colibri-glasspane-tui` → 10 passed; fmt clean. 🤖 Generated with [Claude Code](https://claude.com/claude-code)

clawdie added 3 commits 2026-06-24 14:45:59 +02:00

test(tui): add TestBackend render tests — connecting, snapshot, no-panic 4a475d88a7

Closes the 'compiles but never verified to draw' gap:
- render_connecting_state_shows_connecting_text — asserts 'connecting…'
  and 'colibri-harness' title render before daemon connects
- render_with_snapshot_shows_panes_and_agent — asserts pane id, agent
  name, state label, and state icon appear in rendered buffer
- render_does_not_panic_on_empty_snapshot — smoke test for the
  snapshot=None path

All three use ratatui::TestBackend (no terminal needed, CI-friendly).

force hook run ac0a77c82c

test(tui): add stalled-pane + tiny-terminal render tests

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57e3f30f9c

Two more TestBackend render tests on top of the connecting/populated/empty set:
- render_stalled_pane_shows_warning_icon — covers the distinct stalled branch
  (state_icon → ⚠), which the healthy-Working test (●) didn't exercise.
- render_does_not_panic_on_tiny_terminal — renders at 20x5 to guard against
  cramped-layout panics (a classic ratatui footgun).

10 tests pass; fmt clean.