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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
const URL = "http://mochi.test:8888/browser/toolkit/components/thumbnails/" +
"test/background_red_scroll.html";
function isRedThumbnailFuzz(r, g, b, expectedR, expectedB, expectedG, aFuzz)
{
return (Math.abs(r - expectedR) <= aFuzz) &&
(Math.abs(g - expectedG) <= aFuzz) &&
(Math.abs(b - expectedB) <= aFuzz);
}
// Test for black borders caused by scrollbars.
function* runTests() {
// Create a tab with a page with a red background and scrollbars.
yield addTab(URL);
yield captureAndCheckColor(255, 0, 0, "we have a red thumbnail");
// Check the thumbnail color of the bottom right pixel.
yield whenFileExists(URL);
yield retrieveImageDataForURL(URL, function (aData) {
let [r, g, b] = [].slice.call(aData, -4);
let fuzz = 2; // Windows 8 x64 blends with the scrollbar a bit.
var message = "Expected red thumbnail rgb(255, 0, 0), got " + r + "," + g + "," + b;
ok(isRedThumbnailFuzz(r, g, b, 255, 0, 0, fuzz), message);
next();
});
}
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