<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <script src="/js-test-resources/js-test.js"></script>
    <script src="resources/util.js"></script>
</head>
<body>
<script>
    description("Tests for classification based on subresource redirect collusion.");
    jsTestIsAsync = true;

    const hostUnderTest = "127.0.0.1:8000";
    const statisticsUrl = "http://" + hostUnderTest + "/temp";
    const subresourceOrigin1 = "http://127.0.0.2:8000/temp";
    const subresourceOrigin2 = "http://127.0.0.3:8000/temp";
    const subresourceOrigin3 = "http://127.0.0.4:8000/temp";
    const subresourceOrigin4 = "http://127.0.0.5:8000/temp";

    function runTest() {
        testRunner.statisticsNotifyObserver();

        testRunner.setStatisticsSubresourceUniqueRedirectFrom(statisticsUrl, subresourceOrigin1);
        testRunner.setStatisticsSubresourceUniqueRedirectFrom(subresourceOrigin1, subresourceOrigin2);
        testRunner.setStatisticsSubresourceUniqueRedirectFrom(subresourceOrigin2, subresourceOrigin3);
        testRunner.setStatisticsSubresourceUniqueRedirectFrom(subresourceOrigin3, subresourceOrigin4);

        testRunner.setStatisticsPrevalentResource(statisticsUrl, true, function() {
            if (!testRunner.isStatisticsPrevalentResource(statisticsUrl))
                testFailed("Host explicity set did not get set as prevalent resource.");
            if (testRunner.isStatisticsPrevalentResource(subresourceOrigin1))
                testPassed("Colluding host 1 got set as prevalent resource.");
            if (testRunner.isStatisticsVeryPrevalentResource(subresourceOrigin1))
                testFailed("Colluding host 1 got classified as very prevalent resource.");
            if (testRunner.isStatisticsPrevalentResource(subresourceOrigin2))
                testPassed("Colluding host 2 got set as prevalent resource.");
            if (testRunner.isStatisticsVeryPrevalentResource(subresourceOrigin2))
                testFailed("Colluding host 2 got classified as very prevalent resource.");
            if (testRunner.isStatisticsPrevalentResource(subresourceOrigin3))
                testPassed("Colluding host 3 got set as prevalent resource.");
            if (testRunner.isStatisticsVeryPrevalentResource(subresourceOrigin3))
                testFailed("Colluding host 3 got classified as very prevalent resource.");
            if (testRunner.isStatisticsPrevalentResource(subresourceOrigin4))
                testPassed("Colluding host 4 got set as prevalent resource.");
            if (testRunner.isStatisticsVeryPrevalentResource(subresourceOrigin4))
                testFailed("Colluding host 4 got classified as very prevalent resource.");
            if (testRunner.isStatisticsPrevalentResource("http://localhost:8000"))
                testPassed("Colluding localhost got set as prevalent resource after actual sub frame redirect.");
            if (testRunner.isStatisticsVeryPrevalentResource("http://localhost:8000"))
                testFailed("Colluding localhost got classified as very prevalent resource.");
            
            setEnableFeature(false, finishJSTest);
        });
    }

    if (document.location.host === hostUnderTest && window.testRunner && window.internals) {
        testRunner.setUseITPDatabase(true);
        setEnableFeature(true, function () {
            testRunner.setStatisticsPrevalentResource(statisticsUrl, false, function() {
                if (testRunner.isStatisticsPrevalentResource(statisticsUrl))
                    testFailed("Host did not get set as non-prevalent resource.");
                let iframeElement = document.createElement("iframe");
                iframeElement.onload = runTest;
                iframeElement.src = "http://localhost:8000/resourceLoadStatistics/resources/redirect.php?redirectTo=http://127.0.0.1:8000/resourceLoadStatistics/onclick.html";
                document.body.appendChild(iframeElement);
            });
        });
    }
</script>
</body>
</html>