Adding Angular and dependent packages for testing

third_party/pkg/route_hierarchical/test/url_template_test.dart

+library url_template_test;
+
+import 'package:unittest/unittest.dart';
+import 'package:route_hierarchical/url_template.dart';
+import 'package:route_hierarchical/url_matcher.dart';
+
+main() {
+  group('UrlTemplate', () {
+    test('should work with simple templates', () {
+      var tmpl = new UrlTemplate('/foo/bar:baz/aux');
+      expect(tmpl.match('/foo/bar123/aux'),
+          new UrlMatch('/foo/bar123/aux', '', {
+            'baz': '123'
+          }));
+
+      tmpl = new UrlTemplate('/foo/:bar');
+      expect(tmpl.match('/foo/123'), new UrlMatch('/foo/123', '', {
+        'bar': '123'
+      }));
+
+      tmpl = new UrlTemplate('/:foo/bar');
+      expect(tmpl.match('/123/bar'), new UrlMatch('/123/bar', '', {
+        'foo': '123'
+      }));
+
+      tmpl = new UrlTemplate('/user/:userId/article/:articleId/view');
+      UrlMatch params =
+          tmpl.match('/user/jsmith/article/1234/view/someotherstuff');
+      expect(params, new UrlMatch('/user/jsmith/article/1234/view',
+          '/someotherstuff', {
+            'userId': 'jsmith',
+            'articleId': '1234'
+          }));
+
+      params = tmpl.match('/user/jsmith/article/1234/edit');
+      expect(params, isNull);
+
+      tmpl = new UrlTemplate(r'/foo/:bar$123/aux');
+      expect(tmpl.match(r'/foo/123$123/aux'),
+          new UrlMatch(r'/foo/123$123/aux', '', {
+            'bar': '123'
+          }));
+    });
+
+    test('should work with special characters', () {
+      var tmpl = new UrlTemplate(r'\^\|+[]{}()');
+      expect(tmpl.match(r'\^\|+[]{}()'), new UrlMatch(r'\^\|+[]{}()', '', {}));
+
+      tmpl = new UrlTemplate(r'/:foo/^\|+[]{}()');
+      expect(tmpl.match(r'/123/^\|+[]{}()'),
+          new UrlMatch(r'/123/^\|+[]{}()', '', {
+            'foo': '123'
+          }));
+    });
+
+    test('should only match prefix', () {
+      var tmpl = new UrlTemplate(r'/foo');
+      expect(tmpl.match(r'/foo/foo/bar'),
+          new UrlMatch(r'/foo', '/foo/bar', {}));
+    });
+
+    test('should reverse', () {
+      var tmpl = new UrlTemplate('/:a/:b/:c');
+      expect(tmpl.reverse(), '/null/null/null');
+      expect(tmpl.reverse(parameters: {
+        'a': 'foo',
+        'b': 'bar',
+        'c': 'baz'
+      }), '/foo/bar/baz');
+
+      tmpl = new UrlTemplate(':a/bar/baz');
+      expect(tmpl.reverse(), 'null/bar/baz');
+      expect(tmpl.reverse(parameters: {
+        'a': '/foo',
+      }), '/foo/bar/baz');
+
+      tmpl = new UrlTemplate('/foo/bar/:c');
+      expect(tmpl.reverse(), '/foo/bar/null');
+      expect(tmpl.reverse(parameters: {
+        'c': 'baz',
+      }), '/foo/bar/baz');
+
+      tmpl = new UrlTemplate('/foo/bar/:c');
+      expect(tmpl.reverse(tail: '/tail', parameters: {
+        'c': 'baz',
+      }), '/foo/bar/baz/tail');
+    });
+  });
+}