<!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true ] -->
<html>
<head>
    <meta name="viewport" content="width=640, initial-scale=0.5">
    <style>
        #square {
            position: absolute;
            width: 10vw;
            height: 10vh;
            border: 2px solid black;
        }

        #output {
            width: 100%;
            height: 100%;
            overflow: scroll;
        }

        body {
            margin: 0;
            width: 100%;
            height: 100%;
        }
    </style>
    <script src="../../../resources/ui-helper.js"></script>
    <script>
    if (window.testRunner) {
        testRunner.dumpAsText();
        testRunner.waitUntilDone();
    }

    async function runTest() {
        const appendOutput = message => {
            output.appendChild(document.createTextNode(message));
            output.appendChild(document.createElement("br"));
        };

        for (let targetScale of [0.5, 0.75, 1, 1.25, 1.5, 1.25, 1, 0.75, 0.5]) {
            appendOutput(`setViewScale(${targetScale.toFixed(2)})`);

            await UIHelper.setViewScale(targetScale);
            await Promise.all([UIHelper.ensureVisibleContentRectUpdate(), UIHelper.ensurePresentationUpdate()]);

            appendOutput(`window size: [${innerWidth}, ${innerHeight}]`);
            appendOutput(`square size: [${square.clientWidth}, ${square.clientHeight}]`);
            appendOutput(`zoom scale: ${(await UIHelper.zoomScale()).toFixed(2)}`);
            appendOutput("");
        }

        testRunner.notifyDone();
    }
    </script>
</head>

<body onload="runTest()">
    <div id="square"></div>
    <pre id="output"></pre>
</body>
</html>