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Diffstat (limited to 'testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html')
-rw-r--r-- | testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html b/testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html new file mode 100644 index 0000000000..48d445f897 --- /dev/null +++ b/testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html @@ -0,0 +1,30 @@ +<!DOCTYPE html> +<html> +<body> +<canvas id="canvas"></canvas> +<script src=/resources/testharness.js></script> +<script src=/resources/testharnessreport.js></script> +<script> +promise_test(async t => { + const canvas = document.getElementById("canvas"); + const ctx = canvas.getContext("2d"); + const stream = canvas.captureStream(); + t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); + + const video = document.createElement("video"); + video.srcObject = stream; + + ctx.getImageData(0, 0, canvas.width, canvas.height); + + assert_equals(video.readyState, video.HAVE_NOTHING, + "Video element was just created"); + + // Wait a bit so the video element can update readyState in case of a frame. + await new Promise(r => t.step_timeout(r, 100)); + + assert_equals(video.readyState, video.HAVE_NOTHING, + "Video element did not get a frame from the canvas"); +}, "CanvasRenderingContext2D.getImageData() does not lead to a frame being captured"); +</script> +</body> +</html> |