element_classes_test - move helper functions to top level

tests/html/element_classes_test.dart

 // 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.
 
 library ElementTest;
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 import 'dart:collection';
 import 'dart:html';
 
-main() {
-  useHtmlConfiguration();
+Element makeElement() => new Element.tag('div');
 
-  Element makeElement() => new Element.tag('div');
-
-  Element makeElementWithChildren() =>
-    new Element.html("<div><br/><img/><input/></div>");
-
-  Element makeElementWithClasses() =>
+Element makeElementWithClasses() =>
     new Element.html('<div class="foo bar baz"></div>');
 
-  Element makeListElement() =>
+Set<String> makeClassSet() => makeElementWithClasses().classes;
+
+Element makeListElement() =>
     new Element.html('<ul class="foo bar baz">'
         '<li class="quux qux">'
         '<li class="meta">'
         '<li class="classy lassy">'
         '<li class="qux lassy">'
         '</ul>');
 
-  Set<String> makeClassSet() => makeElementWithClasses().classes;
+Element listElement;
+
+ElementList<Element> listElementSetup() {
+  listElement = makeListElement();
+  document.documentElement.children.add(listElement);
+  return document.querySelectorAll('li');
+}
+
+void listElementTearDown() {
+  if (listElement != null) {
+    document.documentElement.children.remove(listElement);
+    listElement = 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(' '));
   }
 
-  /// 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}');
-  }
 
   test('affects the "class" attribute', () {
     final el = makeElementWithClasses();
     el.classes.add('qux');
     expect(extractClasses(el), orderedEquals(['foo', 'bar', 'baz', 'qux']));
   });
 
   test('is affected by the "class" attribute', () {
     final el = makeElementWithClasses();
     el.attributes['class'] = 'foo qux';
@@ skipping 166 matching lines @@
   test('order', () {
     var classes = makeClassSet();
     classes.add('aardvark');
     expect(classes, orderedEquals(['foo', 'bar', 'baz', 'aardvark']));
     classes.toggle('baz');
     expect(classes, orderedEquals(['foo', 'bar', 'aardvark']));
     classes.toggle('baz');
     expect(classes, orderedEquals(['foo', 'bar', 'aardvark', 'baz']));
   });
 
-
-  Element listElement;
-
-  ElementList<Element> listElementSetup() {
-    listElement = makeListElement();
-    document.documentElement.children.add(listElement);
-    return document.querySelectorAll('li');
-  }
-
-  tearDown(() {
-    if (listElement != null) {
-      document.documentElement.children.remove(listElement);
-      listElement = null;
-    }
-  });
+  tearDown(listElementTearDown);
 
   test('list_view', () {
     // Test that the 'view' helper function is behaving.
     var elements = listElementSetup();
     expect(view(elements.classes), '[classy, lassy, meta, quux, qux]');
     expect(view(elements),
         '[[quux, qux], [meta], [classy, lassy], [lassy, qux]]');
   });
 
   test('listClasses=', () {
@@ skipping 103 matching lines @@
     expect(view(elements.classes), '[quux, qux]');
     expect(view(elements), '[[quux, qux], [], [], [qux]]');
   });
 
   test('listContainsAll', () {
     var elements = listElementSetup();
     expect(elements.classes.containsAll(['qux', 'meta', 'mornin']), isFalse);
     expect(elements.classes.containsAll(['qux', 'lassy', 'classy']), isTrue);
   });
 }