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Oleksandr Bezdieniezhnykh cdebfccada

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[AZ-471] [AZ-473] [AZ-478] [AZ-479] Batch 7 - canvas/photo-mode/network/perf tests

- AZ-471 CanvasEditor draw + 8-handle resize PASS (FT-P-39 fast +
  e2e + FT-P-40 8 sub-tests). Three drifts pinned via it.fails():
  Ctrl+click multi-select (FT-P-41), Ctrl+wheel zoom-around-cursor
  (FT-P-42), Ctrl+drag empty-canvas pan (FT-P-43) — all rooted in
  handleMouseDown's early Ctrl-gate and handleWheel's
  pan-not-adjusted bug.
- AZ-473 PhotoMode 3 ACs all PASS in fast + e2e (FT-P-48 switch
  filter, FT-P-49 auto-select, FT-P-50 yoloId wire across modes
  P=0/20/40 — outbound classNum == classId + photoModeOffset).
- AZ-478 fast 7 + e2e 2: AC-1 user-visible offline indicator,
  AC-2 tainted-canvas fallback, AC-3 SSE disconnect banner —
  all drift today (it.fails fast + test.fail e2e + control
  PASS for each). Service-worker negative check passes.
- AZ-479 AC-1 (bundle <= 2 MB gzipped) promoted from
  on-demand perf script to per-commit static profile via new
  STC-PERF01 row + static_check_bundle_size in run-tests.sh.
  AC-2 (mission-planner exclusion) already covered by STC-S5.
  AC-3 FCP /flights <= 3 s median (chromium suite-e2e) and
  AC-4 30-min annotation soak (RUN_LONG_RUNNING=1, chromium)
  scaffolded as e2e tests.

Code review: PASS (0 findings). Fast: 25/25 files, 150 passed
/ 13 skipped. Static: 25/25 PASS (incl. new STC-PERF01).

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-05-11 05:58:55 +03:00

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Test — Canvas Editor (Bounding-Box + Multi-Select + Zoom + Pan)

Task: AZ-471_test_canvas_bbox Name: CanvasEditor manual draw + 8-handle resize + Ctrl+click multi-select + Ctrl+wheel zoom + Ctrl+drag pan Description: Implement the 5 blackbox tests covering the core canvas interactions: draw bbox, resize via 8 handles, multi-select via Ctrl+click, zoom-around-cursor via Ctrl+wheel, pan via Ctrl+drag. Complexity: 5 points Dependencies: AZ-456_test_infrastructure Component: 06_annotations (CanvasEditor) (Blackbox Tests) Tracker: AZ-471 Epic: AZ-455

Problem

The canvas editor is the SPA's most-interactive surface; canvas-pixel coordinates introduce floating-point + DPR gotchas that have caused subtle off-by-pixel regressions. The 5 scenarios pin geometry, modifier-key semantics, and viewport transformation.

Outcome

5 scenarios pass with deterministic numeric fixtures (no getBoundingClientRect flakiness across viewport sizes).

Scope

Included

Scenario	Profile	Source file
FT-P-39 — manual bounding-box draw on `<CanvasEditor>`	fast + e2e	blackbox-tests.md
FT-P-40 — 8-handle bbox resize	fast	blackbox-tests.md
FT-P-41 — Ctrl+click multi-select on canvas	fast	blackbox-tests.md
FT-P-42 — Ctrl+wheel zoom-around-cursor	fast	blackbox-tests.md
FT-P-43 — Ctrl+drag pan on empty canvas	fast	blackbox-tests.md

Excluded

Tile-split interaction (covered in 19_test_tile_split_zoom).
Annotation overlay membership (covered in 07_test_overlay_membership).
Save-on-change (covered in 05_test_annotations_endpoint).

Acceptance Criteria

AC-1: Manual draw geometry Draw a bbox at (x1,y1)→(x2,y2); resulting annotation carries the canonical canvas-coordinate quad. Floating-point compare within ±0.5 px tolerance.

AC-2: 8-handle resize Drag each of the 8 handles independently; assert resulting bbox geometry per handle. Each handle's anchor (opposite corner / edge midpoint) is invariant during the drag.

AC-3: Ctrl+click multi-select Ctrl+click on a second bbox adds it to the selection; selection set contains both bboxes (asserted via DOM rendering — selection ring style).

AC-4: Zoom-around-cursor Ctrl+wheel at cursor (cx, cy): the canvas pixel under (cx, cy) BEFORE the wheel equals the canvas pixel under (cx, cy) AFTER (within ±0.5 px).

AC-5: Empty-canvas pan Ctrl+drag on an empty canvas region: viewport offset shifts by (dx, dy); bbox positions in canvas coords are invariant.

System Under Test Boundary

System under test: <CanvasEditor> + its pointer/mouse handlers + the canvas-coordinate ↔ viewport transform.
Allowed stubs: MSW for annotation load.
Disallowed: stubbing the canvas component or asserting on React state. Pointer events are dispatched via RTL user-event (or Playwright dispatchEvent for e2e).
Expected observables per results_report.md rows 73-78 (Group 16).

Constraints

Use fixed-size canvas (640×480) so coordinate math is deterministic.

Risks & Mitigation

Risk 1 — DPR + retina display flakiness

Risk: Test runner on a retina display reports different physical pixels than the e2e Docker container.
Mitigation: Playwright config forces deviceScaleFactor: 1; Vitest+jsdom defaults to DPR 1.

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