Add 'containingClassDescription' to HoverInformation.

pkg/analysis_server/test/analysis/get_hover_test.dart

 // Copyright (c) 2014, 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 test.domain.analysis.hover;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:unittest/unittest.dart';
@@ skipping 63 matching lines @@
 library my.library;
 /// doc aaa
 /// doc bbb
 List<String> fff(int a, String b) {
 }
 ''');
     return prepareHover('fff(int a').then((HoverInformation hover) {
       // element
       expect(hover.containingLibraryName, 'my.library');
       expect(hover.containingLibraryPath, testFile);
+      expect(hover.containingClassDescription, isNull);
       expect(hover.dartdoc, '''doc aaa\ndoc bbb''');
       expect(hover.elementDescription, 'fff(int a, String b) → List<String>');
       expect(hover.elementKind, 'function');
       // types
       expect(hover.staticType, '(int, String) → List<String>');
       expect(hover.propagatedType, isNull);
       // no parameter
       expect(hover.parameter, isNull);
     });
   }
 
   test_expression_literal_noElement() {
     addTestFile('''
 main() {
   foo(123);
 }
 foo(Object myParameter) {}
 ''');
     return prepareHover('123').then((HoverInformation hover) {
       // literal, no Element
+      expect(hover.containingClassDescription, isNull);
       expect(hover.elementDescription, isNull);
       expect(hover.elementKind, isNull);
       // types
       expect(hover.staticType, 'int');
       expect(hover.propagatedType, isNull);
       // parameter
       expect(hover.parameter, 'Object myParameter');
     });
   }
 
   test_expression_method() {
     addTestFile('''
 library my.library;
 class A {
   /// doc aaa
   /// doc bbb
   List<String> mmm(int a, String b) {
   }
 }
 ''');
     return prepareHover('mmm(int a').then((HoverInformation hover) {
       // element
       expect(hover.containingLibraryName, 'my.library');
       expect(hover.containingLibraryPath, testFile);
+      expect(hover.containingClassDescription, 'A');
       expect(hover.dartdoc, '''doc aaa\ndoc bbb''');
       expect(hover.elementDescription, 'A.mmm(int a, String b) → List<String>');
       expect(hover.elementKind, 'method');
       // types
       expect(hover.staticType, '(int, String) → List<String>');
       expect(hover.propagatedType, isNull);
       // no parameter
       expect(hover.parameter, isNull);
     });
   }
@@ skipping 35 matching lines @@
   String fff;
 }
 main(A a) {
   print(a.fff);
 }
 ''');
     return prepareHover('fff);').then((HoverInformation hover) {
       // element
       expect(hover.containingLibraryName, 'my.library');
       expect(hover.containingLibraryPath, testFile);
+      expect(hover.containingClassDescription, 'A');
       expect(hover.dartdoc, '''doc aaa\ndoc bbb''');
       expect(hover.elementDescription, 'String fff');
       expect(hover.elementKind, 'field');
       // types
       expect(hover.staticType, 'String');
       expect(hover.propagatedType, isNull);
     });
   }
 
   test_expression_variable_hasPropagatedType() {
@@ skipping 108 matching lines @@
 library my.library;
 main() {
   // nothing
 }
 ''');
     return prepareHover('nothing').then((HoverInformation hover) {
       expect(hover, isNull);
     });
   }
 }