Jacob Richman
595 lines
19 KiB
Dart
595 lines
19 KiB
Dart
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library jsArrayTest;
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import 'dart:html';
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import 'dart:js';
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import 'package:unittest/unittest.dart';
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import 'package:unittest/html_config.dart';
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_injectJs() {
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document.body.append(new ScriptElement()
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..type = 'text/javascript'
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..innerHtml = r"""
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function callJsMethod(jsObj, jsMethodName, args) {
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return jsObj[jsMethodName].apply(jsObj, args);
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}
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function jsEnumerateIndices(obj) {
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var ret = [];
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for(var i in obj) {
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ret.push(i);
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}
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return ret;
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}
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function setValue(obj, index, value) {
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return obj[index] = value;
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}
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function getValue(obj, index) {
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return obj[index];
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}
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function checkIsArray(obj) {
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return Array.isArray(obj);
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}
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function concatValues(obj) {
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return obj.concat("a", "b", ["c", "d"], 42, {foo: 10});
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}
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function concatOntoArray(obj) {
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return [1,2,3].concat(obj, "foo");
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}
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function repeatedConcatOntoArray(obj) {
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return [1,2,3].concat(obj, obj);
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}
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function everyGreaterThanZero(obj) {
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return obj.every(function(currentValue, index, array) {
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return currentValue > 0;
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});
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}
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function everyGreaterThanZeroCheckThisArg(obj) {
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var j = 0;
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return obj.every(function(currentValue, index, array) {
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if (j != index) {
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throw "Unxpected index";
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}
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j++;
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if (array !== obj) {
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throw "Array argument doesn't match obj";
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}
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return currentValue > 0;
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});
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}
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function filterGreater42(obj) {
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return obj.filter(function(currentValue, index, array) {
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return currentValue > 42;
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});
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}
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function forEachCollectResult(array, callback) {
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var result = [];
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array.forEach(function(currentValue) {
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result.push(currentValue * 2);
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});
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return result;
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}
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function someEqual42(array, callback) {
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return array.some(function(currentValue) {
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return currentValue == 42;
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});
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}
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function sortNumbersBackwards(array) {
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return array.sort(function(a, b) {
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return b - a;
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});
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}
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function spliceDummyItems(array) {
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return array.splice(1, 2, "quick" ,"brown", "fox");
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}
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function spliceTestStringArgs(array) {
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return array.splice("1.2", "2.01", "quick" ,"brown", "fox");
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}
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function splicePastEnd(array) {
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return array.splice(1, 5332, "quick" ,"brown", "fox");
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}
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function callJsToString(array) {
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return array.toString();
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}
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function mapAddIndexToEachElement(array) {
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return array.map(function(currentValue, index) {
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return currentValue + index;
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});
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}
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function reduceSumDoubledElements(array) {
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return array.reduce(function(previousValue, currentValue) {
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return previousValue + currentValue*2;
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},
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0);
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}
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// TODO(jacobr): add a test that distinguishes reduce from reduceRight.
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function reduceRightSumDoubledElements(array) {
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return array.reduceRight(function(previousValue, currentValue) {
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return previousValue + currentValue*2;
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},
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0);
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}
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function identical(o1, o2) {
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return o1 === o2;
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}
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function getOwnPropertyDescriptorJson(array, property) {
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return JSON.stringify(Object.getOwnPropertyDescriptor(array, property));
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}
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function setLength(array, len) {
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return array.length = len;
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}
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function jsonStringify(o) {
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return JSON.stringify(o);
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}
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// Calling a method from Dart List on an arbitrary target object.
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function callListMethodOnTarget(dartArray, target, methodName, args) {
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return dartArray[methodName].apply(target, args);
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}
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""");
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}
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class Foo {}
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callJsMethod(List array, String methodName, List args) =>
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context.callMethod("callJsMethod", [array, methodName, args]);
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callIndexOf(List array, value) => callJsMethod(array, "indexOf", [value]);
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callLastIndexOf(List array, value) =>
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callJsMethod(array, "lastIndexOf", [value]);
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callPop(List array) => callJsMethod(array, "pop", []);
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callPush(List array, element) => callJsMethod(array, "push", [element]);
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callShift(List array) => callJsMethod(array, "shift", []);
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callReverse(List array) => callJsMethod(array, "reverse", []);
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callSetLength(List array, length) =>
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context.callMethod("setLength", [array, length]);
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callListMethodOnObject(JsObject object, String methodName, List args) => context
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.callMethod("callListMethodOnTarget", [[], object, methodName, args]);
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jsonStringify(JsObject object) => context.callMethod("jsonStringify", [object]);
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main() {
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_injectJs();
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useHtmlConfiguration();
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group('indexOf', () {
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var div = new DivElement();
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var list = [3, 42, "foo", 42, div];
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test('found', () {
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expect(callIndexOf(list, 3), equals(0));
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expect(callIndexOf(list, 42), equals(1));
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expect(callIndexOf(list, "foo"), equals(2));
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expect(callIndexOf(list, div), equals(4));
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});
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test('missing', () {
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expect(callIndexOf(list, 31), equals(-1));
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expect(callIndexOf(list, "42"), equals(-1));
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expect(callIndexOf(list, null), equals(-1));
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});
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});
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group('set length', () {
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test('larger', () {
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var list = ["a", "b", "c", "d"];
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expect(callSetLength(list, 10), equals(10));
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expect(list.length, equals(10));
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expect(list.last, equals(null));
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expect(list[3], equals("d"));
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});
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test('smaller', () {
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var list = ["a", "b", "c", "d"];
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expect(callSetLength(list, 2), equals(2));
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expect(list.first, equals("a"));
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expect(list.last, equals("b"));
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expect(list.length, equals(2));
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expect(callSetLength(list, 0), equals(0));
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expect(list.length, equals(0));
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expect(callSetLength(list, 2), equals(2));
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expect(list.first, equals(null));
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});
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test('invalid', () {
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var list = ["a", "b", "c", "d"];
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expect(() => callSetLength(list, 2.3), throws);
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expect(list.length, equals(4));
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expect(() => callSetLength(list, -1), throws);
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expect(list.length, equals(4));
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// Make sure we are coercing to a JS number.
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expect(callSetLength(list, "2"), equals("2"));
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expect(list.length, equals(2));
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});
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});
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group('join', () {
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var list = [3, 42, "foo"];
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var listWithDartClasses = [3, new Foo(), 42, "foo", new Object()];
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test('default', () {
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expect(callJsMethod(list, "join", []), equals("3,42,foo"));
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expect(callJsMethod(listWithDartClasses, "join", []),
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equals("3,Instance of 'Foo',42,foo,Instance of 'Object'"));
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});
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test('custom separator', () {
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expect(callJsMethod(list, "join", ["##"]), equals("3##42##foo"));
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});
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});
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group('lastIndexOf', () {
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var list = [3, 42, "foo", 42];
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test('found', () {
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expect(callLastIndexOf(list, 3), equals(0));
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expect(callLastIndexOf(list, 42), equals(3));
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expect(callLastIndexOf(list, "foo"), equals(2));
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});
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test('missing', () {
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expect(callLastIndexOf(list, 31), equals(-1));
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expect(callLastIndexOf(list, "42"), equals(-1));
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expect(callLastIndexOf(list, null), equals(-1));
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});
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});
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group('pop', () {
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test('all', () {
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var foo = new Foo();
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var div = new DivElement();
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var list = [3, 42, "foo", foo, div];
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expect(callPop(list), equals(div));
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expect(list.length, equals(4));
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expect(callPop(list), equals(foo));
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expect(list.length, equals(3));
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expect(callPop(list), equals("foo"));
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expect(list.length, equals(2));
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expect(callPop(list), equals(42));
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expect(list.length, equals(1));
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expect(callPop(list), equals(3));
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expect(list.length, equals(0));
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expect(callPop(list), equals(null));
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expect(list.length, equals(0));
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});
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});
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group('push', () {
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test('strings', () {
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var list = [];
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var div = new DivElement();
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expect(callPush(list, "foo"), equals(1));
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expect(callPush(list, "bar"), equals(2));
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// Calling push with 0 elements should do nothing.
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expect(callJsMethod(list, "push", []), equals(2));
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expect(callPush(list, "baz"), equals(3));
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expect(callPush(list, div), equals(4));
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expect(callJsMethod(list, "push", ["a", "b"]), equals(6));
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expect(list, equals(["foo", "bar", "baz", div, "a", "b"]));
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});
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});
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group('shift', () {
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test('all', () {
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var foo = new Foo();
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var div = new DivElement();
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var list = [3, 42, "foo", foo, div];
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expect(callShift(list), equals(3));
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expect(list.length, equals(4));
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expect(callShift(list), equals(42));
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expect(list.length, equals(3));
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expect(callShift(list), equals("foo"));
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expect(list.length, equals(2));
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expect(callShift(list), equals(foo));
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expect(list.length, equals(1));
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expect(callShift(list), equals(div));
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expect(list.length, equals(0));
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expect(callShift(list), equals(null));
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expect(list.length, equals(0));
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});
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});
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group('reverse', () {
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test('simple', () {
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var foo = new Foo();
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var div = new DivElement();
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var list = [div, 42, foo];
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callReverse(list);
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expect(list, equals([foo, 42, div]));
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list = [3, 42];
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callReverse(list);
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expect(list, equals([42, 3]));
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});
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});
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group('slice', () {
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test('copy', () {
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var foo = new Foo();
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var div = new DivElement();
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var list = [3, 42, "foo", foo, div];
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var copy = callJsMethod(list, "slice", []);
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expect(identical(list, copy), isFalse);
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expect(copy.length, equals(list.length));
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for (var i = 0; i < list.length; i++) {
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expect(list[i], equals(copy[i]));
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}
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expect(identical(list[3], copy[3]), isTrue);
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expect(identical(list[4], copy[4]), isTrue);
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copy.add("dummy");
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expect(list.length + 1, equals(copy.length));
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});
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test('specify start', () {
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var list = [3, 42, "foo"];
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var copy = callJsMethod(list, "slice", [1]);
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expect(copy.first, equals(42));
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});
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test('specify start and end', () {
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var list = [3, 42, 92, "foo"];
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var copy = callJsMethod(list, "slice", [1, 3]);
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expect(copy.first, equals(42));
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expect(copy.last, equals(92));
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});
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test('from end', () {
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var list = [3, 42, 92, "foo"];
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expect(callJsMethod(list, "slice", [-2]), equals([92, "foo"]));
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// Past the end of the front of the array.
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expect(callJsMethod(list, "slice", [-2, 3]), equals([92]));
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// Past the end of the front of the array.
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expect(callJsMethod(list, "slice", [-10, 2]), equals([3, 42]));
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});
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});
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group("js snippet tests", () {
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test("enumerate indices", () {
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var list = ["a", "b", "c", "d"];
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var indices = context.callMethod('jsEnumerateIndices', [list]);
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expect(indices.length, equals(4));
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for (int i = 0; i < 4; i++) {
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expect(indices[i], equals('$i'));
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}
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});
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test("set element", () {
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var list = ["a", "b", "c", "d"];
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context.callMethod('setValue', [list, 0, 42]);
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expect(list[0], equals(42));
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context.callMethod('setValue', [list, 1, 84]);
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expect(list[1], equals(84));
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context.callMethod(
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'setValue', [list, 6, 100]); // Off the end of the list.
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expect(list.length, equals(7));
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expect(list[4], equals(null));
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expect(list[6], equals(100));
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// These tests have to be commented out because we don't persist
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// JS proxies for Dart objects like we could/should.
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// context.callMethod('setValue', [list, -1, "foo"]); // Not a valid array index
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// expect(context.callMethod('getValue', [list, -1]), equals("foo"));
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// expect(context.callMethod('getValue', [list, "-1"]), equals("foo"));
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});
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test("get element", () {
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var list = ["a", "b", "c", "d"];
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expect(context.callMethod('getValue', [list, 0]), equals("a"));
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expect(context.callMethod('getValue', [list, 1]), equals("b"));
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expect(context.callMethod('getValue', [list, 6]), equals(null));
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expect(context.callMethod('getValue', [list, -1]), equals(null));
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expect(context.callMethod('getValue', [list, "0"]), equals("a"));
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expect(context.callMethod('getValue', [list, "1"]), equals("b"));
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});
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test("is array", () {
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var list = ["a", "b"];
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expect(context.callMethod("checkIsArray", [list]), isTrue);
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});
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test("property descriptors", () {
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// This test matters to make behavior consistent with JS native arrays
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// and to make devtools integration work well.
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var list = ["a", "b"];
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expect(context.callMethod("getOwnPropertyDescriptorJson", [list, 0]),
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equals('{"value":"a",'
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'"writable":true,'
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'"enumerable":true,'
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'"configurable":true}'));
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expect(
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context.callMethod("getOwnPropertyDescriptorJson", [list, "length"]),
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equals('{"value":2,'
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'"writable":true,'
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'"enumerable":false,'
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'"configurable":false}'));
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});
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test("concat js arrays", () {
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var list = ["1", "2"];
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// Tests that calling the concat method from JS will flatten out JS arrays
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// We concat the array with "a", "b", ["c", "d"], 42, {foo: 10}
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// which should generate ["1", "2", "a", "b", ["c", "d"], 42, {foo: 10}]
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var ret = context.callMethod("concatValues", [list]);
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expect(list.length, equals(2));
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expect(ret.length, equals(8));
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expect(ret[0], equals("1"));
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expect(ret[3], equals("b"));
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expect(ret[5], equals("d"));
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expect(ret[6], equals(42));
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expect(ret[7]['foo'], equals(10));
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});
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test("concat onto arrays", () {
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// This test only passes if we have monkey patched the core Array object
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// prototype to handle Dart Lists.
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var list = ["a", "b"];
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var ret = context.callMethod("concatOntoArray", [list]);
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expect(list.length, equals(2));
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expect(ret, equals([1, 2, 3, "a", "b", "foo"]));
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});
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test("dart arrays on dart arrays", () {
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// This test only passes if we have monkey patched the core Array object
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// prototype to handle Dart Lists.
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var list = ["a", "b"];
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var ret = callJsMethod(list, "concat", [["c", "d"], "e", ["f", "g"]]);
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expect(list.length, equals(2));
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expect(ret, equals(["a", "b", "c", "d", "e", "f", "g"]));
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});
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test("every greater than zero", () {
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expect(context.callMethod("everyGreaterThanZero", [[1, 5]]), isTrue);
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expect(context.callMethod("everyGreaterThanZeroCheckThisArg", [[1, 5]]),
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isTrue);
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expect(context.callMethod("everyGreaterThanZero", [[1, 0]]), isFalse);
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expect(context.callMethod("everyGreaterThanZero", [[]]), isTrue);
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});
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test("filter greater than 42", () {
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expect(context.callMethod("filterGreater42", [[1, 5]]), equals([]));
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expect(context.callMethod("filterGreater42", [[43, 5, 49]]),
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equals([43, 49]));
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expect(context.callMethod("filterGreater42", [["43", "5", "49"]]),
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equals(["43", "49"]));
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});
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test("for each collect result", () {
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expect(context.callMethod("forEachCollectResult", [[1, 5, 7]]),
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equals([2, 10, 14]));
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});
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test("some", () {
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expect(context.callMethod("someEqual42", [[1, 5, 9]]), isFalse);
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expect(context.callMethod("someEqual42", [[1, 42, 9]]), isTrue);
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});
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test("sort backwards", () {
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var arr = [1, 5, 9];
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var ret = context.callMethod("sortNumbersBackwards", [arr]);
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expect(identical(arr, ret), isTrue);
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expect(ret, equals([9, 5, 1]));
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});
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test("splice dummy items", () {
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var list = [1, 2, 3, 4];
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var removed = context.callMethod("spliceDummyItems", [list]);
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expect(removed.length, equals(2));
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expect(removed[0], equals(2));
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expect(removed[1], equals(3));
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expect(list.first, equals(1));
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expect(list[1], equals("quick"));
|
|
expect(list[2], equals("brown"));
|
|
expect(list[3], equals("fox"));
|
|
expect(list.last, equals(4));
|
|
});
|
|
|
|
test("splice string args", () {
|
|
var list = [1, 2, 3, 4];
|
|
var removed = context.callMethod("spliceTestStringArgs", [list]);
|
|
expect(removed.length, equals(2));
|
|
expect(removed[0], equals(2));
|
|
expect(removed[1], equals(3));
|
|
expect(list.first, equals(1));
|
|
expect(list[1], equals("quick"));
|
|
expect(list[2], equals("brown"));
|
|
expect(list[3], equals("fox"));
|
|
expect(list.last, equals(4));
|
|
});
|
|
|
|
test("splice pastEndOfArray", () {
|
|
var list = [1, 2, 3, 4];
|
|
var removed = context.callMethod("splicePastEnd", [list]);
|
|
expect(removed.length, equals(3));
|
|
expect(list.first, equals(1));
|
|
expect(list.length, equals(4));
|
|
expect(list[1], equals("quick"));
|
|
expect(list[2], equals("brown"));
|
|
expect(list[3], equals("fox"));
|
|
});
|
|
|
|
test("splice both bounds past end of array", () {
|
|
var list = [1];
|
|
var removed = context.callMethod("splicePastEnd", [list]);
|
|
expect(removed.length, equals(0));
|
|
expect(list.first, equals(1));
|
|
expect(list.length, equals(4));
|
|
expect(list[1], equals("quick"));
|
|
expect(list[2], equals("brown"));
|
|
expect(list[3], equals("fox"));
|
|
});
|
|
|
|
test("call List method on JavaScript object", () {
|
|
var jsObject = new JsObject.jsify({});
|
|
callListMethodOnObject(jsObject, 'push', ["a"]);
|
|
callListMethodOnObject(jsObject, 'push', ["b"]);
|
|
callListMethodOnObject(jsObject, 'push', ["c", "d"]);
|
|
callListMethodOnObject(jsObject, 'push', []);
|
|
|
|
expect(jsonStringify(jsObject),
|
|
equals('{"0":"a","1":"b","2":"c","3":"d","length":4}'));
|
|
|
|
expect(callListMethodOnObject(jsObject, 'pop', []), equals("d"));
|
|
expect(callListMethodOnObject(jsObject, 'join', ["#"]), equals("a#b#c"));
|
|
|
|
var jsArray = new JsObject.jsify([]);
|
|
callListMethodOnObject(jsArray, 'push', ["a"]);
|
|
callListMethodOnObject(jsArray, 'push', ["b"]);
|
|
callListMethodOnObject(jsArray, 'push', ["c", "d"]);
|
|
callListMethodOnObject(jsArray, 'push', []);
|
|
|
|
expect(jsonStringify(jsArray), equals('["a","b","c","d"]'));
|
|
});
|
|
});
|
|
|
|
// This test group is disabled until we figure out an efficient way to
|
|
// distinguish between "array" Dart List types and non-array Dart list types.
|
|
/*
|
|
group('Non-array Lists', () {
|
|
test('opaque proxy', () {
|
|
// Dartium could easily support making LinkedList and all other classes
|
|
// implementing List behave like a JavaScript array but that would
|
|
// be challenging to implement in dart2js until browsers support ES6.
|
|
var list = ["a", "b", "c", "d"];
|
|
var listView = new UnmodifiableListView(list.getRange(1,3));
|
|
expect(listView is List, isTrue);
|
|
expect(listView.length, equals(2));
|
|
expect(context.callMethod("checkIsArray", [listView]), isFalse);
|
|
expect(context.callMethod("checkIsArray", [listView.toList()]), isTrue);
|
|
expect(context.callMethod("getOwnPropertyDescriptorJson",
|
|
[listView, "length"]), equals("null"));
|
|
});
|
|
});
|
|
*/
|
|
}
|