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-rw-r--r--testing/web-platform/tests/mediacapture-fromelement/HTMLCanvasElement-getImageData-noframe.html30
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>