chromium/src/third_party/blink/web_tests/fast/dom/Window/resources/postmessage-test.js

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

var console = document.getElementById("console");

var messages = [];
var evalThunks = [];

function equal(actual, expected)
{
    if (actual === expected)
        return true;
    if (typeof actual !== typeof expected)
        return false;
    if ((actual instanceof Date) || (expected instanceof Date)) {
        if ((actual instanceof Date) && (expected instanceof Date))
            return (expected instanceof Date) && actual.getTime() == expected.getTime();
        return false;
    }
    if ((actual instanceof Number) || (expected instanceof Number)) {
        return (actual instanceof Number) && (expected instanceof Number) &&
            (expected.valueOf() == actual.valueOf());
    }
    if ((actual instanceof Boolean) || (expected instanceof Boolean)) {
        return (actual instanceof Boolean) && (expected instanceof Boolean) &&
            (expected.valueOf() == actual.valueOf());
    }
    if ((actual instanceof String) || (expected instanceof String)) {
        return (actual instanceof String) && (expected instanceof String) &&
            (expected.valueOf() == actual.valueOf());
    }
    if (Array.isArray(actual) || Array.isArray(expected)) {
        if (!Array.isArray(actual) || !Array.isArray(expected))
            return false;
        if (actual.length != expected.length)
            return false;
        for (var i = 0; i < actual.length; i++) {
            if ((i in actual) ^ (i in expected))
                return false;
            if (!equal(actual[i], expected[i]))
                return false;
        }
        return true;
    }
    if (actual.constructor !== expected.constructor)
        return false;
    try {
        var keys = Object.keys(actual);
    } catch(e) {
        return false;
    }
    try {
    if (!equal(keys, Object.keys(expected)))
        return false;
    } catch(e) {
        return false;
    }
    for (var i = 0; i < keys.length; i++) {
        if (!equal(actual[keys[i]], expected[keys[i]]))
            return false;
    }
    return true;
}

function safeToString(o) {
    if (o instanceof Date)
        return o.toISOString();
    if (typeof o !== "object" || !o)
        return o;
    try {
        return o.toString();
    } catch (e) {
        return Object.prototype.toString.call(o) + "(default toString threw "+e+")";
    }
}

function escapeHTML(text) {
    // Coerce to string, then replace characters that need HTML escaping.
    return (text+'').replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
}

function shouldBe(actual, expected)
{
    var actualValue = eval(actual);
    var expectedValue = eval(expected);
    if (equal(actualValue, expectedValue))
        console.innerHTML += "PASS: " + actual + " is " + safeToString(expectedValue) + " of type " + typeof actualValue + "<br>";
    else
        console.innerHTML += "FAIL: " + actual + " is " + actualValue + " should be " + expectedValue + " of type " + typeof expectedValue + "<br>";
}

function shouldBeIdentical(actual, expected)
{
    var actualValue = eval(actual);
    var expectedValue = eval(expected);
    if (actualValue === expectedValue)
        console.innerHTML += "PASS: " + actual + " is === to " + expected + "<br>";
    else
        console.innerHTML += "FAIL: " + actual + " is not === to " + expected + "<br>";
}

function doPass(msg) {
    console.innerHTML += "PASS: " + msg + "<br>";
}

function doFail(msg) {
    console.innerHTML += "FAIL: " + msg + "<br>";
}

window.doPassFail = function(result, msg) {
    console.innerHTML += (result ? "PASS: " : "FAIL: ") + msg + "<br>";
}

function onmessage(evt) {
    eventData = evt.data;
    if (evt.data !== evt.data)
        console.innerHTML += "MessageEvent.data does not produce the same value on multiple queries. " + evt.data + ", " + evt.data + "<br>";
    var message = messages.shift();
    switch (message) {
    case "cyclicObject":
        shouldBeIdentical("eventData", "eventData.self");
        break;
    case "cyclicArray":
        shouldBeIdentical("eventData", "eventData[0]");
        break;
    case "objectGraph":
        shouldBeIdentical("eventData.graph1", "eventData.graph2");
        break;
    case "arrayGraph":
        shouldBeIdentical("eventData[0]", "eventData[1]");
        break;
    case "evalThunk":
        var thunk = evalThunks.shift();
        try {
            thunk(eventData);
        } catch(e) {
            doFail("threw exception: " + e);
            throw e;
        }
        break;
    default:
        shouldBe("eventData", message);
    }

    if (safeToString(evt.data) == 'done' && window.testRunner)
        testRunner.notifyDone();
}

window.addEventListener('message', onmessage, false);

function ConstructorWithPrototype(s) {
    this.field = s;
}

ConstructorWithPrototype.prototype = {
    protoProperty: 2010
};

window.tryPostMessage = function(message, shouldThrow, expected, expectedExceptionOrEvalThunk, transferables) {
    if (expected == "evalThunk") {
      var evalThunk = expectedExceptionOrEvalThunk;
    } else {
      var expectedException = expectedExceptionOrEvalThunk;
    }
    try {
        var value = eval(message);
        postMessage(value, "*", transferables);
        if (shouldThrow)
            console.innerHTML += "FAIL: 'postMessage("+message+")' should throw but didn't<br>";
        messages.push(expected || message);
        if (expected == "evalThunk") {
            evalThunks.push(evalThunk);
        }
    } catch(e) {
        if (shouldThrow) {
            if (expectedException === undefined || expectedException == e.code || expectedException == e || e instanceof expectedException) {
                console.innerHTML += "PASS: 'postMessage("+message+")' threw " + escapeHTML(e) + "<br>";
            } else {
                console.innerHTML += "FAIL: 'postMessage("+message+")' threw " + escapeHTML(e) + ", was expecting " + escapeHTML(expectedException) + "<br>";
            }
        } else
            console.innerHTML += "FAIL: 'postMessage("+message+")' should not throw but threw " + e + "<br>";
    }
}