51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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/**
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* Tests if draw calls inside a single animation frame generate and retrieve
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* the correct "end result" screenshot.
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*/
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function* ifTestingSupported() {
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let { target, front } = yield initCanvasDebuggerBackend(SIMPLE_CANVAS_URL);
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let navigated = once(target, "navigate");
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yield front.setup({ reload: true });
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ok(true, "The front was setup up successfully.");
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yield navigated;
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ok(true, "Target automatically navigated when the front was set up.");
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let snapshotActor = yield front.recordAnimationFrame();
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ok(snapshotActor,
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"A snapshot actor was sent after recording.");
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let animationOverview = yield snapshotActor.getOverview();
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ok(snapshotActor,
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"An animation overview could be retrieved after recording.");
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let screenshot = animationOverview.screenshot;
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ok(screenshot,
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"A screenshot was sent after recording.");
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is(screenshot.index, 6,
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"The screenshot's index is correct.");
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is(screenshot.width, 128,
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"The screenshot's width is correct.");
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is(screenshot.height, 128,
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"The screenshot's height is correct.");
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is(screenshot.flipped, false,
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"The screenshot's flipped flag is correct.");
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is([].find.call(Uint32(screenshot.pixels), e => e > 0), 4290822336,
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"The screenshot's pixels seem to not be completely transparent.");
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yield removeTab(target.tab);
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finish();
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}
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function Uint32(src) {
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let charView = new Uint8Array(src);
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return new Uint32Array(charView.buffer);
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}
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