| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'dart:html'; |
| |
| import 'package:expect/minitest.dart'; |
| |
| import 'util.dart'; |
| |
| main() { |
| var isAnchorElement = |
| predicate((x) => x is AnchorElement, 'is an AnchorElement'); |
| |
| List<String> _nodeStrings(Iterable<Node> input) { |
| var out = new List<String>(); |
| for (Node n in input) { |
| if (n is Element) { |
| Element e = n; |
| out.add(e.tagName); |
| } else { |
| out.add(n.text); |
| } |
| } |
| return out; |
| }; |
| |
| assertConstError(void fn()) { |
| try { |
| fn(); |
| } catch (e) { |
| if (e is UnsupportedError) { |
| return; |
| } |
| } |
| expect(true, isFalse, reason: 'Expected immutability error'); |
| }; |
| |
| void expectEmptyStyleDeclaration(CssStyleDeclaration style) { |
| expect(style.cssText, equals('')); |
| expect(style.getPropertyPriority('color'), equals('')); |
| expect(style.item(0), equals('')); |
| expect(style.length, equals(0)); |
| // TODO(jacobr): these checks throw UnimplementedErrors in dartium. |
| // expect(style.parentRule, isNull); |
| // expect(style.getPropertyCssValue('color'), isNull); |
| // expect(style.getPropertyShorthand('color'), isNull); |
| // expect(style.isPropertyImplicit('color'), isFalse); |
| |
| // Ideally these would throw errors, but it's not possible to create a class |
| // that'll intercept these calls without implementing the entire |
| // CssStyleDeclaration interface, so we'll settle for them being no-ops. |
| style.cssText = '* {color: blue}'; |
| style.removeProperty('color'); |
| style.setProperty('color', 'blue'); |
| } |
| |
| group('constructors', () { |
| test('0-argument makes an empty fragment', () { |
| final fragment = new DocumentFragment(); |
| expect(fragment.children, equals([])); |
| }); |
| |
| test('.html parses input as HTML', () { |
| final fragment = new DocumentFragment.html('<a>foo</a>'); |
| expect(fragment.children[0], isAnchorElement); |
| }); |
| |
| // test('.svg parses input as SVG', () { |
| // final fragment = new DocumentFragment.svg('<a>foo</a>'); |
| // expect(fragment.children[0] is SVGAElement, isTrue); |
| // }); |
| |
| // TODO(nweiz): enable this once XML is ported. |
| // test('.xml parses input as XML', () { |
| // final fragment = new DocumentFragment.xml('<a>foo</a>'); |
| // expect(fragment.children[0] is XMLElement, isTrue); |
| // }); |
| }); |
| |
| group('children', () { |
| DocumentFragment fragment; |
| List<Element> children; |
| |
| init() { |
| fragment = new DocumentFragment(); |
| children = fragment.children; |
| fragment.nodes.addAll( |
| [new Text("1"), new Element.tag("A"), new Element.tag("B"), |
| new Text("2"), new Element.tag("I"), new Text("3"), |
| new Element.tag("U")]); |
| }; |
| |
| test('is initially empty', () { |
| children = new DocumentFragment().children; |
| expect(children, equals([])); |
| expect(children.isEmpty, isTrue); |
| }); |
| |
| test('filters out non-element nodes', () { |
| init(); |
| expect(_nodeStrings(fragment.nodes), |
| equals(["1", "A", "B", "2", "I", "3", "U"])); |
| expect(_nodeStrings(children), |
| equals(["A", "B", "I", "U"])); |
| }); |
| |
| test('only indexes children, not other nodes', () { |
| init(); |
| children[1] = new Element.tag("BR"); |
| expect(_nodeStrings(fragment.nodes), |
| equals(["1", "A", "BR", "2", "I", "3", "U"])); |
| expect(_nodeStrings(children), |
| equals(["A", "BR", "I", "U"])); |
| }); |
| |
| test('adds to both children and nodes', () { |
| init(); |
| children.add(new Element.tag("UL")); |
| expect(_nodeStrings(fragment.nodes), |
| equals(["1", "A", "B", "2", "I", "3", "U", "UL"])); |
| expect(_nodeStrings(children), |
| equals(["A", "B", "I", "U", "UL"])); |
| }); |
| |
| test('removes only children, from both children and nodes', () { |
| init(); |
| expect(children.removeLast().tagName, equals('U')); |
| expect(_nodeStrings(fragment.nodes), |
| equals(["1", "A", "B", "2", "I", "3"])); |
| expect(_nodeStrings(children), |
| equals(["A", "B", "I"])); |
| |
| expect(children.removeLast().tagName, "I"); |
| expect(_nodeStrings(fragment.nodes), |
| equals(["1", "A", "B", "2", "3"])); |
| expect(_nodeStrings(children), equals(["A", "B"])); |
| }); |
| |
| test('accessors are wrapped', () { |
| init(); |
| expect(children[0].tagName, "A"); |
| expect(_nodeStrings(children.where((e) => e.tagName == "I")), ["I"]); |
| expect(children.every((e) => e is Element), isTrue); |
| expect(children.any((e) => e.tagName == "U"), isTrue); |
| expect(children.isEmpty, isFalse); |
| expect(children.length, 4); |
| expect(children[2].tagName, "I"); |
| expect(children.last.tagName, "U"); |
| }); |
| |
| test('setting children overwrites nodes as well', () { |
| init(); |
| fragment.children = [new Element.tag("DIV"), new Element.tag("HEAD")]; |
| expect(_nodeStrings(fragment.nodes), equals(["DIV", "HEAD"])); |
| }); |
| }); |
| |
| test('setting innerHtml works', () { |
| var fragment = new DocumentFragment(); |
| fragment.append(new Text("foo")); |
| fragment.innerHtml = "<a>bar</a>baz"; |
| expect(_nodeStrings(fragment.nodes), equals(["A", "baz"])); |
| }); |
| |
| test('getting innerHtml works', () { |
| var fragment = new DocumentFragment(); |
| fragment.nodes.addAll([new Text("foo"), new Element.html("<A>bar</A>")]); |
| expect(fragment.innerHtml, "foo<a>bar</a>"); |
| }); |
| |
| test('query searches the fragment', () { |
| var fragment = new DocumentFragment.html( |
| "<div class='foo'><a>foo</a><b>bar</b></div>"); |
| expect(fragment.query(".foo a").tagName, "A"); |
| expect(_nodeStrings(fragment.queryAll(".foo *")), equals(["A", "B"])); |
| }); |
| } |