Run bazel test //donner/editor/tests:svg_suite_animation_tests for the software renderer, or bazel test //donner/editor/tests:svg_suite_animation_tests_geode for Geode. Both use the production Renderer facade, GoogleTest and the existing pixelmatch identity comparator (threshold 0, mismatch allowance 0, includeAA true). No browser, JavaScript, Python, sleep, or wall clock is used by these tests.
The tests exercise SVGDocument::setTime, restartAnimations, beginAnimation, explicit-target dispatchMouseEvent and bounded (from,to] animationEvents. Setting time samples on the next render; lifecycle queries neither advance time nor dispatch callbacks. The 4,096-event cap and fresh-session restart are Donner API contracts, not SVG requirements. SecureAnimated event rejection and SecureStatic sampling suppression are checked separately.
The deterministic scenarios cover exact begin, repeat and end boundaries; freeze, remove, always/when-not-active/never restart; backward seeks; discrete nonuniform, spline and paced interpolation; additive accumulated values; transform, inline motion and <mpath> sampling; and animation inside two <use> instances with different inherited color contexts. Each scenario checks public semantic state where the API exposes it and compares rendered output with an independently authored oracle.
The hover case renders the document, captures production hit geometry through CapturedPresentation, and queries FramePresentation at a 2x screen transform. The old frame must retain its old hit geometry after document time advances. Empty resource tiles use the existing geometry test helper: this proves pointer-target geometry and event delivery, not GPU presentation, editor mouse-edge synthesis, focus-loss cancellation, or stale-document-generation rejection. Those remain editor integration coverage obligations. The click case is explicitly target-based and does not stand in for pointer hit testing.
Every image is 16 by 16 pixels, opaque RGBA8, on white. Each colored shape occupies exactly [x,x+4) * [y,y+4) with integer coordinates, no strokes or filters. Red is (255,0,0,255), blue is (0,0,255,255), white is (255,255,255,255). PNG bytes were constructed directly from those rectangles; no Donner render produced a reference. Each PNG has a same-stem .reference.svg with those static rectangles so a reviewer can inspect the oracle independently. Dynamic SVGs also have a same-stem PNG for their time-zero scene; lifecycle-bounds.svg uses hover-hit.png because only the query's bounded result changes, not its red pixels. Extended scenarios compare the live animation bitmap directly with a static .reference.svg bitmap through CompareBitmapToBitmap and strict identity parameters. This keeps the expected geometry and color reviewable without deriving a binary golden from Donner output.
| Case / checkpoint | Expected rectangle x coordinates |
|---|---|
| absolute-time, time 0 / restart | red 2, blue 2 |
| absolute-mid, time 1 | red 6, blue 6 |
| absolute-end, time 2 and 3 | red 10 (freeze), blue 2 (remove) |
| absolute-seek, time 0.5 after time 3 | red 4, blue 4 |
| click-start, no event / wrong target / secure mode | red 2, blue 2 |
| click-mid, one second after accepted click | red 2, blue 6 |
| click-end, four seconds after click | red 2, blue 10 |
| hover-hit, time 0 | red 2 |
| hover-end, time 2 / after mouseout | red 10 |
| hover-active, mouseover at time 2 | blue 10 |
Red rectangles are at y=2; blue response rectangles are at y=10. Hover's blue rectangle remains at y=2. Linear interpolation is x=2+4t during a two-second simple duration. The click occurs at document time 5: begin=5, repeat=7, end=9. The query (5,7] contains only repeat=7. A later click cannot restart restart="never" until restartAnimations() begins a new Donner session.
Specification sources: SVG Animations timing, animation values, additive animation, motion, transform, set, and SVG2 pointer events. The animation draft viewed for authoring is dated 14 September 2025. These links justify assertions; they are not a cryptographically pinned audit baseline.
CSS Animations, CSS Transitions, Web Animations, JavaScript handlers, access-key and wall-clock timing, <discard>, focus/keyboard navigation, browser event synthesis, and frame-pacing behavior remain outside this native suite profile. The tests do not claim complete SVG dynamic-interactive conformance or editor UI qualification.
Read the named checkpoint, exact source fixture, static reference and original-size actual/expected/diff images in TEST_UNDECLARED_OUTPUTS_DIR. Check semantic failures alongside pixels: correct pixels alone cannot establish correct target identity or event timing. Keep rejected-event and pre-event checkpoints as negative controls. Do not set UPDATE_GOLDEN_IMAGES_DIR: the tests fail explicitly if it is present. Do not loosen identity, regenerate goldens from Donner output, or skip failures. Report engine, harness or oracle findings with evidence and preserve the failed run.
1.15.0 