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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
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Roy Tam
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241
dom/bindings/test/test_iterable.html
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241
dom/bindings/test/test_iterable.html
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<!-- Any copyright is dedicated to the Public Domain.
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- http://creativecommons.org/publicdomain/zero/1.0/ -->
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test Iterable Interface</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<script class="testbody" type="application/javascript">
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SimpleTest.waitForExplicitFinish();
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SpecialPowers.pushPrefEnv({set: [['dom.expose_test_interfaces', true]]}, function() {
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base_properties = [["entries", "function", 0],
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["keys", "function", 0],
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["values", "function", 0],
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["forEach", "function", 1]]
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var testExistence = function testExistence(prefix, obj, properties) {
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for (var [name, type, args] of properties) {
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// Properties are somewhere up the proto chain, hasOwnProperty won't work
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isnot(obj[name], undefined,
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`${prefix} object has property ${name}`);
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is(typeof obj[name], type,
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`${prefix} object property ${name} is a ${type}`);
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// Check function length
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if (type == "function") {
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is(obj[name].length, args,
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`${prefix} object property ${name} is length ${args}`);
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is(obj[name].name, name,
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`${prefix} object method name is ${name}`);
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}
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// Find where property is on proto chain, check for enumerablility there.
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var owner = obj;
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while (owner) {
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var propDesc = Object.getOwnPropertyDescriptor(owner, name);
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if (propDesc) {
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ok(propDesc.enumerable,
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`${prefix} object property ${name} is enumerable`);
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break;
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}
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owner = Object.getPrototypeOf(owner);
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}
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}
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}
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var itr;
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// Simple single type iterable creation and functionality test
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info("IterableSingle: Testing simple iterable creation and functionality");
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itr = new TestInterfaceIterableSingle();
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testExistence("IterableSingle: ", itr, base_properties);
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is(itr[Symbol.iterator], Array.prototype[Symbol.iterator],
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"IterableSingle: Should be using %ArrayIterator% for @@iterator");
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is(itr.keys, Array.prototype.keys,
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"IterableSingle: Should be using %ArrayIterator% for 'keys'");
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is(itr.entries, Array.prototype.entries,
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"IterableSingle: Should be using %ArrayIterator% for 'entries'");
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is(itr.values, itr[Symbol.iterator],
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"IterableSingle: Should be using @@iterator for 'values'");
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is(itr.forEach, Array.prototype.forEach,
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"IterableSingle: Should be using %ArrayIterator% for 'forEach'");
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var keys = [...itr.keys()];
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var values = [...itr.values()];
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var entries = [...itr.entries()];
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var key_itr = itr.keys();
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var value_itr = itr.values();
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var entries_itr = itr.entries();
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for (var i = 0; i < 3; ++i) {
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next();
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is(key.value, i, "IterableSingle: Key iterator value should be " + i);
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is(key.value, keys[i],
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"IterableSingle: Key iterator value should match destructuring " + i);
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is(value.value, key.value, "IterableSingle: Value iterator value should be " + key.value);
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is(value.value, values[i],
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"IterableSingle: Value iterator value should match destructuring " + i);
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is(entry.value[0], i, "IterableSingle: Entry iterator value 0 should be " + i);
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is(entry.value[1], i, "IterableSingle: Entry iterator value 1 should be " + i);
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is(entry.value[0], entries[i][0],
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"IterableSingle: Entry iterator value 0 should match destructuring " + i);
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is(entry.value[1], entries[i][1],
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"IterableSingle: Entry iterator value 1 should match destructuring " + i);
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}
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var callsToForEachCallback = 0;
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var thisArg = {};
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itr.forEach(function(value, index, obj) {
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is(index, callsToForEachCallback,
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`IterableSingle: Should have the right index at ${callsToForEachCallback} calls to forEach callback`);
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is(value, values[index],
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`IterableSingle: Should have the right value at ${callsToForEachCallback} calls to forEach callback`);
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is(this, thisArg,
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"IterableSingle: Should have the right this value for forEach callback");
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is(obj, itr,
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"IterableSingle: Should have the right third arg for forEach callback");
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++callsToForEachCallback;
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}, thisArg);
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is(callsToForEachCallback, 3,
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"IterableSingle: Should have right total number of calls to forEach callback");
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next();
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is(key.value, undefined, "IterableSingle: Key iterator value should be undefined");
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is(key.done, true, "IterableSingle: Key iterator done should be true");
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is(value.value, undefined, "IterableSingle: Value iterator value should be undefined");
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is(value.done, true, "IterableSingle: Value iterator done should be true");
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is(entry.value, undefined, "IterableDouble: Entry iterator value should be undefined");
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is(entry.done, true, "IterableSingle: Entry iterator done should be true");
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is(Object.prototype.toString.call(Object.getPrototypeOf(key_itr)),
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"[object Array Iterator]",
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"iterator prototype should have the right brand");
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// Simple dual type iterable creation and functionality test
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info("IterableDouble: Testing simple iterable creation and functionality");
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itr = new TestInterfaceIterableDouble();
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testExistence("IterableDouble: ", itr, base_properties);
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is(itr.entries, itr[Symbol.iterator],
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"IterableDouble: Should be using @@iterator for 'entries'");
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var elements = [["a", "b"], ["c", "d"], ["e", "f"]]
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var keys = [...itr.keys()];
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var values = [...itr.values()];
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var entries = [...itr.entries()];
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var key_itr = itr.keys();
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var value_itr = itr.values();
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var entries_itr = itr.entries();
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for (var i = 0; i < 3; ++i) {
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next();
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is(key.value, elements[i][0], "IterableDouble: Key iterator value should be " + elements[i][0]);
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is(key.value, keys[i],
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"IterableDouble: Key iterator value should match destructuring " + i);
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is(value.value, elements[i][1], "IterableDouble: Value iterator value should be " + elements[i][1]);
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is(value.value, values[i],
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"IterableDouble: Value iterator value should match destructuring " + i);
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is(entry.value[0], elements[i][0], "IterableDouble: Entry iterator value 0 should be " + elements[i][0]);
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is(entry.value[1], elements[i][1], "IterableDouble: Entry iterator value 1 should be " + elements[i][1]);
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is(entry.value[0], entries[i][0],
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"IterableDouble: Entry iterator value 0 should match destructuring " + i);
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is(entry.value[1], entries[i][1],
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"IterableDouble: Entry iterator value 1 should match destructuring " + i);
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}
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callsToForEachCallback = 0;
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thisArg = {};
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itr.forEach(function(value, key, obj) {
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is(key, keys[callsToForEachCallback],
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`IterableDouble: Should have the right key at ${callsToForEachCallback} calls to forEach callback`);
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is(value, values[callsToForEachCallback],
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`IterableDouble: Should have the right value at ${callsToForEachCallback} calls to forEach callback`);
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is(this, thisArg,
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"IterableDouble: Should have the right this value for forEach callback");
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is(obj, itr,
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"IterableSingle: Should have the right third arg for forEach callback");
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++callsToForEachCallback;
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}, thisArg);
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is(callsToForEachCallback, 3,
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"IterableDouble: Should have right total number of calls to forEach callback");
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next()
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is(key.value, undefined, "IterableDouble: Key iterator value should be undefined");
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is(key.done, true, "IterableDouble: Key iterator done should be true");
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is(value.value, undefined, "IterableDouble: Value iterator value should be undefined");
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is(value.done, true, "IterableDouble: Value iterator done should be true");
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is(entry.value, undefined, "IterableDouble: Entry iterator value should be undefined");
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is(entry.done, true, "IterableDouble: Entry iterator done should be true");
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is(Object.prototype.toString.call(Object.getPrototypeOf(key_itr)),
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"[object TestInterfaceIterableDoubleIteratorPrototype]",
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"iterator prototype should have the right brand");
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// Simple dual type iterable creation and functionality test
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info("IterableDoubleUnion: Testing simple iterable creation and functionality");
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itr = new TestInterfaceIterableDoubleUnion();
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testExistence("IterableDoubleUnion: ", itr, base_properties);
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is(itr.entries, itr[Symbol.iterator],
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"IterableDoubleUnion: Should be using @@iterator for 'entries'");
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var elements = [["long", 1], ["string", "a"]]
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var keys = [...itr.keys()];
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var values = [...itr.values()];
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var entries = [...itr.entries()];
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var key_itr = itr.keys();
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var value_itr = itr.values();
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var entries_itr = itr.entries();
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for (var i = 0; i < elements.length; ++i) {
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next();
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is(key.value, elements[i][0], "IterableDoubleUnion: Key iterator value should be " + elements[i][0]);
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is(key.value, keys[i],
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"IterableDoubleUnion: Key iterator value should match destructuring " + i);
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is(value.value, elements[i][1], "IterableDoubleUnion: Value iterator value should be " + elements[i][1]);
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is(value.value, values[i],
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"IterableDoubleUnion: Value iterator value should match destructuring " + i);
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is(entry.value[0], elements[i][0], "IterableDoubleUnion: Entry iterator value 0 should be " + elements[i][0]);
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is(entry.value[1], elements[i][1], "IterableDoubleUnion: Entry iterator value 1 should be " + elements[i][1]);
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is(entry.value[0], entries[i][0],
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"IterableDoubleUnion: Entry iterator value 0 should match destructuring " + i);
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is(entry.value[1], entries[i][1],
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"IterableDoubleUnion: Entry iterator value 1 should match destructuring " + i);
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}
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callsToForEachCallback = 0;
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thisArg = {};
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itr.forEach(function(value, key, obj) {
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is(key, keys[callsToForEachCallback],
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`IterableDoubleUnion: Should have the right key at ${callsToForEachCallback} calls to forEach callback`);
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is(value, values[callsToForEachCallback],
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`IterableDoubleUnion: Should have the right value at ${callsToForEachCallback} calls to forEach callback`);
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is(this, thisArg,
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"IterableDoubleUnion: Should have the right this value for forEach callback");
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is(obj, itr,
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"IterableSingle: Should have the right third arg for forEach callback");
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++callsToForEachCallback;
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}, thisArg);
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is(callsToForEachCallback, 2,
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"IterableDoubleUnion: Should have right total number of calls to forEach callback");
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var key = key_itr.next();
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var value = value_itr.next();
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var entry = entries_itr.next()
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is(key.value, undefined, "IterableDoubleUnion: Key iterator value should be undefined");
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is(key.done, true, "IterableDoubleUnion: Key iterator done should be true");
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is(value.value, undefined, "IterableDoubleUnion: Value iterator value should be undefined");
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is(value.done, true, "IterableDoubleUnion: Value iterator done should be true");
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is(entry.value, undefined, "IterableDoubleUnion: Entry iterator value should be undefined");
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is(entry.done, true, "IterableDoubleUnion: Entry iterator done should be true");
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is(Object.prototype.toString.call(Object.getPrototypeOf(key_itr)),
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"[object TestInterfaceIterableDoubleUnionIteratorPrototype]",
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"iterator prototype should have the right brand");
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SimpleTest.finish();
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});
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</script>
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</body>
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</html>
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