Unit tests for feature

Author: jcollins-g

test/model_test.dart

@@ -1493,29 +1493,36 @@ String topLevelFunction(int param1, bool param2, Cool coolBeans,
 
   group('Typedef', () {
     Typedef t;
+    Typedef generic;
 
     setUp(() {
       t = exLibrary.typedefs.firstWhere((t) => t.name == 'processMessage');
+      generic = fakeLibrary.typedefs.firstWhere((t) => t.name == 'NewGenericTypedef');
     });
 
     test('has a fully qualified name', () {
       expect(t.fullyQualifiedName, 'ex.processMessage');
+      expect(generic.fullyQualifiedName, 'fake.NewGenericTypedef');
     });
 
     test('has enclosing element', () {
       expect(t.enclosingElement.name, equals(exLibrary.name));
+      expect(generic.enclosingElement.name, equals(fakeLibrary.name));
     });
 
     test('docs', () {
       expect(t.documentation, equals(''));
+      expect(generic.documentation, equals('A typedef with the new style generic function syntax.'));
     });
 
     test('linked return type', () {
       expect(t.linkedReturnType, equals('String'));
+      expect(generic.linkedReturnType, equals('List<T>'));
     });
 
     test("name with generics", () {
       expect(t.nameWithGenerics, equals('processMessage<T>'));
+      expect(generic.nameWithGenerics, equals('NewGenericTypedef<T>'));
     });
   });