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Diffstat (limited to '')
-rw-r--r-- | testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html new file mode 100644 index 0000000000..04eb67902f --- /dev/null +++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html @@ -0,0 +1,31 @@ +<!DOCTYPE html> +<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> +<title>OffscreenCanvas test: 2d.imageData.get.order.alpha</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/html/canvas/resources/canvas-tests.js"></script> + +<h1>2d.imageData.get.order.alpha</h1> +<p class="desc">getImageData() returns A in the fourth component</p> + + +<script> +var t = async_test("getImageData() returns A in the fourth component"); +var t_pass = t.done.bind(t); +var t_fail = t.step_func(function(reason) { + throw reason; +}); +t.step(function() { + + var canvas = new OffscreenCanvas(100, 50); + var ctx = canvas.getContext('2d'); + + ctx.fillStyle = 'rgba(0, 0, 0, 0.5)'; + ctx.fillRect(0, 0, 100, 50); + var imgdata = ctx.getImageData(0, 0, 10, 10); + _assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200"); + _assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100"); + t.done(); + +}); +</script> |