| |
| // @dart = 2.9 |
| import 'dart:html'; |
| |
| import 'package:expect/minitest.dart'; |
| |
| bool isChecked(Element e) => (e as CheckboxInputElement).checked; |
| bool isUnchecked(Element e) => !(e as CheckboxInputElement).checked; |
| |
| // Test that List<Element> implements List<T> |
| main() { |
| Element insertTestDiv() { |
| Element element = new Element.tag('div'); |
| element.innerHtml = r""" |
| <div id='allChecked'> |
| <input type="checkbox" name="c1" value="1" checked="yes"> |
| <input type="checkbox" name="c2" value="2" checked="yes"> |
| <input type="checkbox" name="c3" value="3" checked="yes"> |
| <input type="checkbox" name="c4" value="4" checked="yes"> |
| </div> |
| <div id='someChecked'> |
| <input type="checkbox" name="s1" value="1" checked="yes"> |
| <input type="checkbox" name="s2" value="2"> |
| <input type="checkbox" name="s3" value="3" checked="yes"> |
| <input type="checkbox" name="s4" value="4"> |
| </div> |
| <div id='noneChecked'> |
| <input type="checkbox" name="n1" value="1"> |
| <input type="checkbox" name="n2" value="2"> |
| <input type="checkbox" name="n3" value="3"> |
| <input type="checkbox" name="n4" value="4"> |
| </div> |
| <div id='emptyDiv'></div> |
| """; |
| document.body.append(element); |
| return element; |
| } |
| |
| test('IsList', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| expect(eachChecked is List, isTrue); |
| |
| root.remove(); |
| }); |
| test('Every', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(eachChecked.length, 4); |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(eachChecked.every(isChecked), isTrue); |
| expect(eachChecked.every(isUnchecked), isFalse); |
| expect(someChecked.every(isChecked), isFalse); |
| expect(someChecked.every(isUnchecked), isFalse); |
| expect(noneChecked.every(isChecked), isFalse); |
| expect(noneChecked.every(isUnchecked), isTrue); |
| |
| root.remove(); |
| }); |
| test('Some', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(eachChecked.length, 4); |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(eachChecked.any(isChecked), isTrue); |
| expect(eachChecked.any(isUnchecked), isFalse); |
| expect(someChecked.any(isChecked), isTrue); |
| expect(someChecked.any(isUnchecked), isTrue); |
| expect(noneChecked.any(isChecked), isFalse); |
| expect(noneChecked.any(isUnchecked), isTrue); |
| |
| root.remove(); |
| }); |
| test('Filter', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(eachChecked.length, 4); |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(eachChecked.where(isChecked).length, 4); |
| expect(eachChecked.where(isUnchecked).length, 0); |
| expect(someChecked.where(isChecked).length, 2); |
| expect(someChecked.where(isUnchecked).length, 2); |
| expect(noneChecked.where(isChecked).length, 0); |
| expect(noneChecked.where(isUnchecked).length, 4); |
| |
| root.remove(); |
| }); |
| test('IsEmpty', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> emptyDiv = document.querySelector('#emptyDiv').children; |
| |
| expect(someChecked.length, 4); |
| expect(emptyDiv.length, 0); |
| |
| expect(someChecked.isEmpty, isFalse); |
| expect(emptyDiv.isEmpty, isTrue); |
| |
| root.remove(); |
| }); |
| |
| int countWithForEach(collection, predicate) { |
| int count = 0; |
| collection.forEach((element) { |
| if (predicate(element)) count++; |
| }); |
| return count; |
| } |
| |
| test('ForEach', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(eachChecked.length, 4); |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(countWithForEach(eachChecked, isChecked), 4); |
| expect(countWithForEach(eachChecked, isUnchecked), 0); |
| expect(countWithForEach(someChecked, isChecked), 2); |
| expect(countWithForEach(someChecked, isUnchecked), 2); |
| expect(countWithForEach(noneChecked, isChecked), 0); |
| expect(countWithForEach(noneChecked, isUnchecked), 4); |
| |
| root.remove(); |
| }); |
| |
| int countWithForLoop(collection, predicate) { |
| int count = 0; |
| for (var element in collection) { |
| if (predicate(element)) count++; |
| } |
| return count; |
| } |
| |
| test('ForLoop', () { |
| // Uses iterator. |
| Element root = insertTestDiv(); |
| |
| List<Element> eachChecked = document.querySelector('#allChecked').children; |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(eachChecked.length, 4); |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(countWithForLoop(eachChecked, isChecked), 4); |
| expect(countWithForLoop(eachChecked, isUnchecked), 0); |
| expect(countWithForLoop(someChecked, isChecked), 2); |
| expect(countWithForLoop(someChecked, isUnchecked), 2); |
| expect(countWithForLoop(noneChecked, isChecked), 0); |
| expect(countWithForLoop(noneChecked, isUnchecked), 4); |
| |
| root.remove(); |
| }); |
| test('Last', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| expect(someChecked.length, 4); |
| |
| expect(someChecked.last, equals(someChecked[3])); |
| |
| root.remove(); |
| }); |
| test('IndexOf', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(someChecked.indexOf(someChecked[0], 0), 0); |
| expect(someChecked.indexOf(someChecked[1], 0), 1); |
| expect(someChecked.indexOf(someChecked[2], 0), 2); |
| expect(someChecked.indexOf(someChecked[3], 0), 3); |
| |
| expect(someChecked.indexOf(someChecked[0], 1), -1); |
| expect(someChecked.indexOf(someChecked[1], 2), -1); |
| expect(someChecked.indexOf(someChecked[2], 3), -1); |
| expect(someChecked.indexOf(someChecked[3], 4), -1); |
| |
| expect(someChecked.indexOf(noneChecked[0], 0), -1); |
| expect(noneChecked.indexOf(someChecked[0], 0), -1); |
| expect(someChecked.indexOf(noneChecked[1], 0), -1); |
| expect(noneChecked.indexOf(someChecked[1], 0), -1); |
| |
| root.remove(); |
| }); |
| test('LastIndexOf', () { |
| Element root = insertTestDiv(); |
| |
| List<Element> someChecked = document.querySelector('#someChecked').children; |
| |
| List<Element> noneChecked = document.querySelector('#noneChecked').children; |
| |
| expect(someChecked.length, 4); |
| expect(noneChecked.length, 4); |
| |
| expect(someChecked.lastIndexOf(someChecked[0], 3), 0); |
| expect(someChecked.lastIndexOf(someChecked[1], 3), 1); |
| expect(someChecked.lastIndexOf(someChecked[2], 3), 2); |
| expect(someChecked.lastIndexOf(someChecked[3], 3), 3); |
| |
| expect(someChecked.lastIndexOf(someChecked[0], -1), -1); |
| expect(someChecked.lastIndexOf(someChecked[1], 0), -1); |
| expect(someChecked.lastIndexOf(someChecked[2], 1), -1); |
| expect(someChecked.lastIndexOf(someChecked[3], 2), -1); |
| |
| expect(someChecked.lastIndexOf(noneChecked[0], 3), -1); |
| expect(noneChecked.lastIndexOf(someChecked[0], 3), -1); |
| expect(someChecked.lastIndexOf(noneChecked[1], 3), -1); |
| expect(noneChecked.lastIndexOf(someChecked[1], 3), -1); |
| |
| root.remove(); |
| }); |
| } |