CssClassSet upgrade

tests/html/element_classes_svg_test.dart

+// Copyright (c) 2015, 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.
+
+library ElementTest;
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'dart:collection';
+import 'dart:html';
+import 'dart:svg' as svg;
+
+// Test for `querySelectorAll(xxx).classes.op()` where the query returns mixed
+// Html and Svg elements.
+
+Element makeElementsContainer() {
+  var e = new Element.html(
+      '<ul class="yes foo">'
+      '<li class="yes quux qux">'
+      '</ul>');
+  final svgContent = r"""
+<svg version="1.1">
+  <circle class="yes qux"></circle>
+  <path class="yes classy"></path>
+</svg>""";
+  final svgElement = new svg.SvgElement.svg(svgContent);
+  e.append(svgElement);
+  return e;
+}
+
+Element elementsContainer;
+
+ElementList<Element> elementsSetup() {
+  elementsContainer = makeElementsContainer();
+  document.documentElement.children.add(elementsContainer);
+  var elements = document.querySelectorAll('.yes');
+  expect(elements.length, 4);
+  return elements;
+}
+
+void elementsTearDown() {
+  if (elementsContainer != null) {
+    document.documentElement.children.remove(elementsContainer);
+    elementsContainer = null;
+  }
+}
+
+/// Returns a canonical string for Set<String> and lists of Element's classes.
+String view(var e) {
+  if (e is Set) return '${e.toList()..sort()}';
+  if (e is Element) return view(e.classes);
+  if (e is Iterable) return '${e.map(view).toList()}';
+  throw new ArgumentError('Cannot make canonical view string for: $e}');
+}
+
+main() {
+  useHtmlConfiguration();
+
+  Set<String> extractClasses(Element el) {
+    final match = new RegExp('class="([^"]+)"').firstMatch(el.outerHtml);
+    return new LinkedHashSet.from(match[1].split(' '));
+  }
+
+  tearDown(elementsTearDown);
+
+  test('list_view', () {
+    // Test that the 'view' helper function is behaving.
+    var elements = elementsSetup();
+    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
+    expect(view(elements),
+        '[[foo, yes], [quux, qux, yes], [qux, yes], [classy, yes]]');
+  });
+
+  test('listClasses=', () {
+    var elements =  elementsSetup();
+
+    elements.classes = ['foo', 'qux'];
+    expect(view(elements.classes), '[foo, qux]');
+    expect(view(elements), '[[foo, qux], [foo, qux], [foo, qux], [foo, qux]]');
+
+    var elements2 = document.querySelectorAll('.qux');
+    expect(view(elements2.classes), '[foo, qux]');
+    expect(view(elements2), '[[foo, qux], [foo, qux], [foo, qux], [foo, qux]]');
+
+    for (Element e in elements2) {
+      expect(e.classes, orderedEquals(['foo', 'qux']));
+      expect(extractClasses(e), orderedEquals(['foo', 'qux']));
+    }
+
+    elements.classes = [];
+    expect(view(elements2.classes), '[]');
+    expect(view(elements2), '[[], [], [], []]');
+  });
+
+  test('listMap', () {
+    var elements = elementsSetup();
+    expect(elements.classes.map((c) => c.toUpperCase()).toList(),
+        unorderedEquals(['YES', 'FOO', 'QUX', 'QUUX', 'CLASSY']));
+  });
+
+  test('listContains', () {
+    var elements = elementsSetup();
+    expect(elements.classes.contains('classy'), isTrue);
+    expect(elements.classes.contains('troll'), isFalse);
+  });
+
+
+  test('listAdd', () {
+    var elements =  elementsSetup();
+    var added = elements.classes.add('lassie');
+    expect(added, isNull);
+
+    expect(view(elements.classes), '[classy, foo, lassie, quux, qux, yes]');
+    expect(view(elements),
+        '[[foo, lassie, yes], [lassie, quux, qux, yes], '
+        '[lassie, qux, yes], [classy, lassie, yes]]');
+  });
+
+  test('listRemove', () {
+    var elements = elementsSetup();
+    expect(elements.classes.remove('lassi'), isFalse);
+    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
+    expect(view(elements),
+        '[[foo, yes], [quux, qux, yes], [qux, yes], [classy, yes]]');
+
+    expect(elements.classes.remove('qux'), isTrue);
+    expect(view(elements.classes), '[classy, foo, quux, yes]');
+    expect(view(elements),
+        '[[foo, yes], [quux, yes], [yes], [classy, yes]]');
+  });
+
+  test('listToggle', () {
+    var elements = elementsSetup();
+    elements.classes.toggle('qux');
+    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
+    expect(view(elements),
+        '[[foo, qux, yes], [quux, yes], [yes], [classy, qux, yes]]');
+  });
+
+  test('listAddAll', () {
+    var elements = elementsSetup();
+    elements.classes.addAll(['qux', 'lassi', 'sassy']);
+    expect(view(elements.classes),
+        '[classy, foo, lassi, quux, qux, sassy, yes]');
+    expect(view(elements),
+        '[[foo, lassi, qux, sassy, yes], [lassi, quux, qux, sassy, yes], '
+        '[lassi, qux, sassy, yes], [classy, lassi, qux, sassy, yes]]');
+  });
+
+  test('listRemoveAll', () {
+    var elements = elementsSetup();
+    elements.classes.removeAll(['qux', 'classy', 'mumble']);
+    expect(view(elements.classes), '[foo, quux, yes]');
+    expect(view(elements),
+        '[[foo, yes], [quux, yes], [yes], [yes]]');
+
+    elements.classes.removeAll(['foo', 'yes']);
+    expect(view(elements.classes), '[quux]');
+    expect(view(elements),
+        '[[], [quux], [], []]');
+  });
+
+  test('listToggleAll', () {
+    var elements = elementsSetup();
+    elements.classes.toggleAll(['qux', 'mornin']);
+    expect(view(elements.classes), '[classy, foo, mornin, quux, qux, yes]');
+    expect(view(elements),
+        '[[foo, mornin, qux, yes], [mornin, quux, yes], '
+        '[mornin, yes], [classy, mornin, qux, yes]]');
+
+  });
+
+  test('listRetainAll', () {
+    var elements = elementsSetup();
+    elements.classes.retainAll(['bar', 'baz', 'classy', 'qux']);
+    expect(view(elements.classes), '[classy, qux]');
+    expect(view(elements), '[[], [qux], [qux], [classy]]');
+  });
+
+  test('listRemoveWhere', () {
+    var elements = elementsSetup();
+    elements.classes.removeWhere((s) => s.startsWith('q'));
+    expect(view(elements.classes), '[classy, foo, yes]');
+    expect(view(elements),
+        '[[foo, yes], [yes], [yes], [classy, yes]]');
+  });
+
+  test('listRetainWhere', () {
+    var elements = elementsSetup();
+    elements.classes.retainWhere((s) => s.startsWith('q'));
+    expect(view(elements.classes), '[quux, qux]');
+    expect(view(elements),
+        '[[], [quux, qux], [qux], []]');
+  });
+
+  test('listContainsAll', () {
+    var elements = elementsSetup();
+    expect(elements.classes.containsAll(['qux', 'mornin']), isFalse);
+    expect(elements.classes.containsAll(['qux', 'classy']), isTrue);
+  });
+}