mediasource-preload.html

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This WPT test may be referenced by the following Test IDs:
- /media-source/mediasource-preload.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<!-- Copyright © 2016 Chromium authors and World Wide Web Consortium, (Massachusetts Institute of Technology, ERCIM, Keio University, Beihang). -->

<html>

    <head>

        <title>Various MediaSource HTMLMediaElement preload tests.</title>

        <link rel="author" title="Matthew Wolenetz" href="mailto:wolenetz@chromium.org"/>

        <script src="/resources/testharness.js"></script>

        <script src="/resources/testharnessreport.js"></script>

    </head>

    <body>

        <script>

            function attachWithPreloadTest(preload)

                async_test(function(test)

                    var video = document.createElement("video");

                    var mediaSource = new MediaSource();

                    var mediaSourceURL = URL.createObjectURL(mediaSource);

                    video.preload = preload;

                    document.body.appendChild(video);

                    test.add_cleanup(function() {

                        document.body.removeChild(video);

                        URL.revokeObjectURL(mediaSourceURL);

});

                    mediaSource.addEventListener("sourceopen", test.step_func_done());

                    video.src = mediaSourceURL;

                }, "sourceopen occurs with element preload=" + preload);

            attachWithPreloadTest("auto");

            attachWithPreloadTest("metadata");

            attachWithPreloadTest("none");

            function errorWithPreloadTest(preload, bogusURLStyle)

                async_test(function(test)

                    var mediaSource = new MediaSource();

                    var bogusURL = URL.createObjectURL(mediaSource);

                    if (bogusURLStyle == "corrupted") {

                        var goodURL = bogusURL;

                        test.add_cleanup(function() { URL.revokeObjectURL(goodURL); });

                        bogusURL += "0";

                    } else if (bogusURLStyle == "revoked") {

                        URL.revokeObjectURL(bogusURL);

                    } else {

                        assert_unreached("invalid case");

                    var video = document.createElement("video");

                    video.preload = preload;

                    document.body.appendChild(video);

                    test.add_cleanup(function() { document.body.removeChild(video); });

                    mediaSource.addEventListener("sourceopen", test.unreached_func("'sourceopen' should not be fired"));

                    video.onerror = test.step_func_done();

                    video.src = bogusURL;

                }, "error occurs with bogus blob URL (" + bogusURLStyle + " MediaSource object URL) and element preload=" + preload);

            errorWithPreloadTest("auto", "revoked");

            errorWithPreloadTest("metadata", "revoked");

            errorWithPreloadTest("auto", "corrupted");

            errorWithPreloadTest("metadata", "corrupted");

        </script>

    </body>

</html>