Use generated classes to create requests in analysis server unit tests.

pkg/analysis_server/test/protocol_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.protocol;
 
 import 'dart:convert';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/json.dart';
@@ skipping 485 matching lines @@
     expect(request, isNull);
   }
 
   void test_fromJson_invalidParams() {
     String json = '{"id":"one","method":"aMethod","params":"foobar"}';
     Request request = new Request.fromString(json);
     expect(request, isNull);
   }
 
   void test_fromJson_withParams() {
-    Request original = new Request('one', 'aMethod');
-    original.setParameter('foo', 'bar');
+    Request original = new Request('one', 'aMethod', {'foo': 'bar'});
     String json = JSON.encode(original.toJson());
     Request request = new Request.fromString(json);
     expect(request.id, equals('one'));
     expect(request.method, equals('aMethod'));
     expect(request.params, equals({'foo': 'bar'}));
   }
 
   void test_getRequiredParameter_defined() {
     String name = 'name';
     String value = 'value';
-    Request request = new Request('0', '');
-    request.setParameter(name, value);
+    Request request = new Request('0', '', {name: value});
     expect(request.getRequiredParameter(name).datum, equals(value));
   }
 
    void test_getRequiredParameter_null() {
     String name = 'name';
-    Request request = new Request('0', '');
-    request.setParameter(name, null);
+    Request request = new Request('0', '', {name: null});
     expect(request.getRequiredParameter(name).datum, equals(null));
   }
 
   void test_getRequiredParameter_undefined() {
     String name = 'name';
     Request request = new Request('0', '');
     expect(() => request.getRequiredParameter(name), _throwsRequestFailure);
   }
 
   void test_toJson() {
     Request request = new Request('one', 'aMethod');
     expect(request.toJson(), equals({
       Request.ID: 'one',
       Request.METHOD: 'aMethod'
     }));
   }
 
   void test_toJson_withParams() {
-    Request request = new Request('one', 'aMethod');
-    request.setParameter('foo', 'bar');
+    Request request = new Request('one', 'aMethod', {'foo': 'bar'});
     expect(request.toJson(), equals({
       Request.ID: 'one',
       Request.METHOD: 'aMethod',
       Request.PARAMS: {
         'foo': 'bar'
       }
     }));
   }
 }
 
@@ skipping 114 matching lines @@
     response.setResult(resultName, resultValue);
     expect(response.getResult(resultName), same(resultValue));
     expect(response.toJson(), equals({
       Response.ID: '0',
       Response.RESULT: {
         resultName: resultValue
       }
     }));
   }
 }