Issue 10355. Quick Fix to replace 'var' with 'dynamic'.

pkg/analysis_server/test/services/correction/fix_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.services.correction.fix;
 
 import 'package:analysis_server/src/protocol.dart' hide AnalysisError;
 import 'package:analysis_server/src/services/correction/fix.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/local_memory_index.dart';
@@ skipping 13 matching lines @@
   groupSep = ' | ';
   runReflectiveTests(FixProcessorTest);
 }
 
 
 @ReflectiveTestCase()
 class FixProcessorTest extends AbstractSingleUnitTest {
   Index index;
   SearchEngineImpl searchEngine;
 
+  bool checkHasSingleError = true;
+
   Fix fix;
   SourceChange change;
   String resultCode;
 
   void assertHasFix(FixKind kind, String expected) {
     AnalysisError error = _findErrorToFix();
     fix = _assertHasFix(kind, error);
     change = fix.change;
     // apply to "file"
     List<SourceFileEdit> fileEdits = change.edits;
@@ skipping 1197 matching lines @@
   'dart:math';
 main() {
 }
 ''');
     assertHasFix(FixKind.REMOVE_UNUSED_IMPORT, '''
 main() {
 }
 ''');
   }
 
+  void test_replaceVarWithDynamic() {
+    checkHasSingleError = false;
+    _indexTestUnit('''
+class A {
+  Map<String, var> m;
+}
+''');
+    assertHasFix(FixKind.REPLACE_VAR_WITH_DYNAMIC, '''
+class A {
+  Map<String, dynamic> m;
+}
+''');
+  }
+
   void test_replaceWithConstInstanceCreation() {
     _indexTestUnit('''
 class A {
   const A();
 }
 const a = new A();
 ''');
     assertHasFix(FixKind.USE_CONST, '''
 class A {
   const A();
@@ skipping 543 matching lines @@
       [List<LinkedEditSuggestion> expectedSuggestions]) {
     List<Position> expectedPositions = _findResultPositions(expectedStrings);
     expect(group.positions, unorderedEquals(expectedPositions));
     if (expectedSuggestions != null) {
       expect(group.suggestions, unorderedEquals(expectedSuggestions));
     }
   }
 
   AnalysisError _findErrorToFix() {
     List<AnalysisError> errors = context.computeErrors(testSource);
-    expect(
-        errors,
-        hasLength(1),
-        reason: 'Exactly 1 error expected, but ${errors.length} found:\n' +
-            errors.join('\n'));
+    if (checkHasSingleError) {
+      expect(errors, hasLength(1));
+    }
     return errors[0];
   }
 
   List<Position> _findResultPositions(List<String> searchStrings) {
     List<Position> positions = <Position>[];
     for (String search in searchStrings) {
       int offset = resultCode.indexOf(search);
       int length = getLeadingIdentifierLength(search);
       positions.add(new Position(testFile, offset));
     }
     return positions;
   }
 
   void _indexTestUnit(String code) {
     resolveTestUnit(code);
     index.indexUnit(context, testUnit);
   }
 }