repaint-column-reverse.html | Explore in Territory

<!DOCTYPE html>
<script src="../resources/text-based-repaint.js"></script>
<style>
#flexbox {
    display: flex;
    flex-flow: column-reverse;
    width: 200px;
}
.flex-item {
    height: 30px;
}
</style>
<script>
function repaintTest()
{
    document.getElementById("blue").style.margin = "1px";
}

window.onload = function() {
    if (!window.testRunner) {
        document.body.appendChild(document.createTextNode(
            "This test checks that for flex items that are moved multiple times during the layout "
            + "only the initial and final positions are repainted. Only the blue flex item should be repainted "
            + "after changing its position. If the other flex items are repainted, this test fails."));
    }
    window.enablePixelTesting = true;
    runRepaintTest();
};
</script>
<div id="flexbox">
  <div id="blue" class="flex-item" style="background-color: blue;"></div>
  <div id="green" class="flex-item" style="background-color: green;"></div>
  <div id="yellow" class="flex-item" style="background-color: yellow;"></div>
</div>

chromium/third_party/blink/web_tests/paint/invalidation/flexbox/repaint-column-reverse.html