<!DOCTYPE><!-- webkit-test-runner [ experimental:WebAnimationsCSSIntegrationEnabled=true ] -->

<html>
<head>
    <style>
        .box {
            height: 100px;
            width: 100px;
            margin: 10px;
            background: url('../fast/backgrounds/repeat/resources/gradient.gif') repeat 0 0;
            transition-duration: 1s;
            transition-timing-function: linear;
            transition-property: background-position;
        }

        #box1 {
            background-position: 10px 20px;
        }

        body.final #box1 {
            background-position: left 80px top 100px;
        }

        #box2 {
            background-position: right 10px bottom 20px;
        }

        body.final #box2 {
            background-position: right 80px bottom 100px;
        }

        #box3 {
            background-position: 10px 20px;
        }

        body.final #box3 {
            background-position: right 80px bottom 100px;
        }
    </style>
    <script src="resources/transition-test-helpers.js" type="text/javascript"></script>
    <script>
        const expectedValues = [
        // [time, element-id, property, expected-value, tolerance]
        [0.5, 'box1', 'background-position-x', "45px"],
        [0.5, 'box1', 'background-position-y', "60px"],
        [0.5, 'box2', 'background-position-x', "45px"],
        [0.5, 'box2', 'background-position-y', "60px"],
        [0.5, 'box3', 'background-position-x', "calc((10px * 0.5) + ((100% - 80px) * 0.5))"],
        [0.5, 'box3', 'background-position-y', "calc((20px * 0.5) + ((100% - 100px) * 0.5))"],
        ];

        function setupTest()
        {
            document.body.classList.add('final');
        }

        runTransitionTest(expectedValues, setupTest, usePauseAPI);
    </script>
</head>
<body>

    <div id="box1" class="box"></div>
    <div id="box2" class="box"></div>
    <div id="box3" class="box"></div>

    <pre id="result"></pre>

</body>
</html>