Flush results when contexts are made idle.

pkg/analyzer/test/src/context/cache_test.dart

 // Copyright (c) 2015, 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 analyzer.test.src.context.cache_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
@@ skipping 915 matching lines @@
     // make idle
     List<TargetedResult> resultsToFlush = manager.madeIdle();
     expect(manager.maxSize, 3);
     expect(manager.recentlyUsed, results.skip(15 - 3));
     expect(resultsToFlush, results.take(15 - 3));
   }
 
   test_new() {
     expect(manager.maxActiveSize, 15);
     expect(manager.maxIdleSize, 3);
-    expect(manager.maxSize, 3);
+    expect(manager.maxSize, 15);
     expect(manager.currentSize, 0);
     expect(manager.recentlyUsed, isEmpty);
   }
 
   test_resultAccessed() {
     ResultDescriptor descriptor1 = new ResultDescriptor('result1', null);
     ResultDescriptor descriptor2 = new ResultDescriptor('result2', null);
     ResultDescriptor descriptor3 = new ResultDescriptor('result3', null);
     AnalysisTarget target = new TestSource();
     TargetedResult result1 = new TargetedResult(target, descriptor1);
@@ skipping 40 matching lines @@
     manager.resultStored(result2, null);
     expect(manager.currentSize, 2);
     expect(manager.recentlyUsed, orderedEquals([result1, result2]));
     // access result3, no-op
     manager.resultAccessed(result3);
     expect(manager.currentSize, 2);
     expect(manager.recentlyUsed, orderedEquals([result1, result2]));
   }
 
   test_resultStored() {
+    CacheFlushManager manager = new CacheFlushManager(
+        new SimpleResultCachingPolicy(3, 3), (AnalysisTarget target) => false);
     ResultDescriptor descriptor1 = new ResultDescriptor('result1', null);
     ResultDescriptor descriptor2 = new ResultDescriptor('result2', null);
     ResultDescriptor descriptor3 = new ResultDescriptor('result3', null);
     ResultDescriptor descriptor4 = new ResultDescriptor('result4', null);
     AnalysisTarget target = new TestSource();
     TargetedResult result1 = new TargetedResult(target, descriptor1);
     TargetedResult result2 = new TargetedResult(target, descriptor2);
     TargetedResult result3 = new TargetedResult(target, descriptor3);
     TargetedResult result4 = new TargetedResult(target, descriptor4);
     manager.resultStored(result1, null);
@@ skipping 293 matching lines @@
     }
     return DeltaResult.INVALIDATE;
   }
 }
 
 class _TestAnalysisTarget implements AnalysisTarget {
   final Source librarySource;
   final Source source;
   _TestAnalysisTarget({this.librarySource, this.source});
 }