Adding Angular and dependent packages for testing

third_party/pkg/angular/test/filter/order_by_spec.dart

Index: third_party/pkg/angular/test/filter/order_by_spec.dart
diff --git a/third_party/pkg/angular/test/filter/order_by_spec.dart b/third_party/pkg/angular/test/filter/order_by_spec.dart
new file mode 100644
index 0000000000000000000000000000000000000000..694767e74de92fd667bc17d20617a7d3c4d7f72c
--- /dev/null
+++ b/third_party/pkg/angular/test/filter/order_by_spec.dart
@@ -0,0 +1,187 @@
+library order_by_spec;
+
+import '../_specs.dart';
+
+
+class Name {
+  String firstName;
+  String lastName;
+  Name({String this.firstName, String this.lastName});
+  operator ==(Name other) =>
+      (firstName == other.firstName && lastName == other.lastName);
+  String toString() => 'Name(firstName: $firstName, lastName: $lastName)';
+}
+
+
+main() {
+  describe('orderBy filter', () {
+    var Emily___Bronte = new Name(firstName: 'Emily', lastName: 'Bronte'),
+        Mark____Twain = {'firstName': 'Mark',    'lastName': 'Twain'},
+        Jeffrey_Archer = {'firstName': 'Jeffrey', 'lastName': 'Archer'},
+        Isaac___Asimov = new Name(firstName: 'Isaac', lastName: 'Asimov'),
+        Oscar___Wilde = {'firstName': 'Oscar',   'lastName': 'Wilde'};
+    beforeEach(() => inject((Scope scope) {
+      scope['authors'] = [
+        Emily___Bronte,
+        Mark____Twain,
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Oscar___Wilde,
+      ];
+      scope['items'] = [
+        {'a': 10, 'b': 10},
+        {'a': 10, 'b': 20},
+        {'a': 20, 'b': 10},
+        {'a': 20, 'b': 20},
+      ];
+    }));
+
+    it('should pass through null list when input list is null', inject((Scope scope) {
+      var list = null;
+      expect(scope.$eval('list | orderBy:"foo"')).toBe(null);
+    }));
+
+    it('should pass through argument when expression is null', inject((Scope scope) {
+      var list = scope['list'] = [1, 3, 2];
+      expect(scope.$eval('list | orderBy:thisIsNull')).toBe(list);
+    }));
+
+    it('should sort with "empty" expression using default comparator', inject((Scope scope) {
+      scope['list'] = [1, 3, 2];
+      expect(scope.$eval('list | orderBy:""')).toEqual([1, 2, 3]);
+      expect(scope.$eval('list | orderBy:"+"')).toEqual([1, 2, 3]);
+      expect(scope.$eval('list | orderBy:"-"')).toEqual([3, 2, 1]);
+    }));
+
+    it('should sort by expression', inject((Scope scope) {
+      expect(scope.$eval('authors | orderBy:"firstName"')).toEqual([
+        Emily___Bronte,
+        Isaac___Asimov,
+        Jeffrey_Archer,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+      expect(scope.$eval('authors | orderBy:"lastName"')).toEqual([
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Emily___Bronte,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+
+      scope['sortKey'] = 'firstName';
+      expect(scope.$eval('authors | orderBy:sortKey')).toEqual([
+        Emily___Bronte,
+        Isaac___Asimov,
+        Jeffrey_Archer,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+
+    }));
+
+    it('should reverse order when passed the additional descending param', inject((Scope scope) {
+      expect(scope.$eval('authors | orderBy:"lastName":true')).toEqual([
+        Oscar___Wilde,
+        Mark____Twain,
+        Emily___Bronte,
+        Isaac___Asimov,
+        Jeffrey_Archer,
+      ]);
+    }));
+
+    it('should reverse order when expression is prefixed with "-"', inject((Scope scope) {
+      expect(scope.$eval('authors | orderBy:"-lastName"')).toEqual([
+        Oscar___Wilde,
+        Mark____Twain,
+        Emily___Bronte,
+        Isaac___Asimov,
+        Jeffrey_Archer,
+      ]);
+    }));
+
+    it('should NOT reverse order when BOTH expression is prefixed with "-" AND additional parameter also asks reversal',
+       inject((Scope scope) {
+      expect(scope.$eval('authors | orderBy:"-lastName":true')).toEqual([
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Emily___Bronte,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+    }));
+
+    it('should allow a "+" prefix on the expression that should be a nop (ascending order)',
+       inject((Scope scope) {
+      expect(scope.$eval('authors | orderBy:"+lastName"')).toEqual([
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Emily___Bronte,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+      expect(scope.$eval('authors | orderBy:"+lastName":false')).toEqual([
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Emily___Bronte,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+      expect(scope.$eval('authors | orderBy:"+lastName":true')).toEqual([
+        Oscar___Wilde,
+        Mark____Twain,
+        Emily___Bronte,
+        Isaac___Asimov,
+        Jeffrey_Archer,
+      ]);
+    }));
+
+    it('should support an array of expressions',
+       inject((Scope scope) {
+      expect(scope.$eval('items | orderBy:["-a", "-b"]')).toEqual([
+        {'a': 20, 'b': 20},
+        {'a': 20, 'b': 10},
+        {'a': 10, 'b': 20},
+        {'a': 10, 'b': 10},
+      ]);
+      expect(scope.$eval('items | orderBy:["-b", "-a"]')).toEqual([
+        {'a': 20, 'b': 20},
+        {'a': 10, 'b': 20},
+        {'a': 20, 'b': 10},
+        {'a': 10, 'b': 10},
+      ]);
+      expect(scope.$eval('items | orderBy:["a", "-b"]')).toEqual([
+        {'a': 10, 'b': 20},
+        {'a': 10, 'b': 10},
+        {'a': 20, 'b': 20},
+        {'a': 20, 'b': 10},
+      ]);
+      expect(scope.$eval('items | orderBy:["a", "-b"]:true')).toEqual([
+        {'a': 20, 'b': 10},
+        {'a': 20, 'b': 20},
+        {'a': 10, 'b': 10},
+        {'a': 10, 'b': 20},
+      ]);
+    }));
+
+    it('should support function expressions',
+       inject((Scope scope) {
+      scope['func'] = (e) => -(e['a'] + e['b']);
+      expect(scope.$eval('items | orderBy:[func, "a", "-b"]')).toEqual([
+        {'a': 20, 'b': 20},
+        {'a': 10, 'b': 20},
+        {'a': 20, 'b': 10},
+        {'a': 10, 'b': 10},
+      ]);
+      scope['func'] = (e) => (e is Name) ? e.lastName : e['lastName'];
+      expect(scope.$eval('authors | orderBy:func')).toEqual([
+        Jeffrey_Archer,
+        Isaac___Asimov,
+        Emily___Bronte,
+        Mark____Twain,
+        Oscar___Wilde,
+      ]);
+    }));
+
+  });
+}