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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /image/test/mochitest/test_bug1132427.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | image/test/mochitest/test_bug1132427.html | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/image/test/mochitest/test_bug1132427.html b/image/test/mochitest/test_bug1132427.html new file mode 100644 index 0000000000..0ee2872fea --- /dev/null +++ b/image/test/mochitest/test_bug1132427.html @@ -0,0 +1,94 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test for scrolling selection into view</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script src="/tests/SimpleTest/WindowSnapshot.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> + +<pre id="test"> +<script class="testbody" type="text/javascript"> + +// We open a window which contains two copies of the same gif. One at a scaled size, one at the +// natural image size. We rely on the bug only showing up in the scaled image. The gif has three +// frames and a delay of 100ms. The first is all white. The second has a very small update area +// in the upper left, it changes the pixels to slightly off white. The third changes all the +// pixels to blue. When the bug appears we only update the upper left pixels when looping around +// from the last frame to the first frame. We compare a middle pixel of the two images to make +// sure that they are the same at 100ms for a second. If the bug appears then the middle pixel +// on the scaled image will always be blue and so should not match the middle pixel on the +// unscaled image which should be white two thirds of the time. If the timers fire at bad times +// and only fire when both frames are displaying blue we won't be able to detect this bug and the +// test will pass without testing anything important, but that's not a big deal. That should be +// rare enough, and the next time the test is run will should do proper testing. + +SimpleTest.requestFlakyTimeout("Pre-existing timeouts when converting from mochitest-chrome"); +SimpleTest.waitForExplicitFinish(); +addLoadEvent(openWindow); + +var win = null; + +function openWindow() { + win = window.open("bug1132427.html", + "", "scrollbars=yes,toolbar,menubar,width=600,height=800"); + win.focus(); +} + +function doTest() { + setTimeout(continueTest, 1000); +} + +function checkPixel(canvas, context, x1, y1, x2, y2) { + var pix = context.getImageData(0, 0, canvas.width, canvas.height).data; + for (var i = 0; i < 4; i++) { + is(pix[4 * (y1 * canvas.width + x1) + i], pix[4 * (y2 * canvas.width + x2) + i], "pixels should match"); + } +} + +var iterationsLeft = 10; + +function continueTest() { + // we need to drawWindow the chrome window so we can get a dump of the retained widget layers + // if we have to repaint to fulfill this drawWindow request then it will be impossible to + // observe the bug + // XXX(kmag): This test has not had access to a chrome window since the dawn + // of e10s. I'm not sure how accurate the above comment was even before that + // point, but it certainly is not accurate now. + var topWin = SpecialPowers.wrap(win).top; + + var el = window.document.createElementNS("http://www.w3.org/1999/xhtml", "canvas"); + el.width = topWin.innerWidth; + el.height = topWin.innerHeight; + var ctx = el.getContext("2d"); + // pass the correct flags so we don't have to flush the retained layers + SpecialPowers.wrap(ctx).drawWindow(topWin, 0, 0, topWin.innerWidth, topWin.innerHeight, "rgba(0,0,0,0)", + ctx.DRAWWINDOW_USE_WIDGET_LAYERS | ctx.DRAWWINDOW_DRAW_VIEW | ctx.DRAWWINDOW_DRAW_CARET); + + var leftbox = win.document.getElementById("left").getBoundingClientRect(); + var rightbox = win.document.getElementById("right").getBoundingClientRect(); + // this is actually chrome on left and right, but in practice we have none so it doesn't matter + var chromeleft = win.outerWidth - win.innerWidth; + // this is actually chrome on top and bottom, but bottom chrome is usually small to none and we have + // 100px to spare in hitting the middle of the image elements (they are 200x200) + var chrometop = win.outerHeight - win.innerHeight; + + // compare the middle of the two image elements + checkPixel(el, ctx, chromeleft + leftbox.left + Math.floor(leftbox.width/2), chrometop + leftbox.top + Math.floor(leftbox.height/2), + chromeleft + rightbox.left + Math.floor(rightbox.width/2), chrometop + rightbox.top + Math.floor(rightbox.height/2)); + + iterationsLeft--; + if (iterationsLeft > 0) { + // now test 100ms later, we should have the next frame of the gif then + setTimeout(continueTest, 100); + } else { + win.close(); + SimpleTest.finish(); + } +} +</script> +</pre> +</body> + +</html> |