Cache flushing implementation for the task model.

pkg/analyzer/test/src/task/model_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 test.src.task.model_test;
 
 import 'package:analyzer/src/generated/engine.dart' hide AnalysisTask;
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/task/model.dart';
 import 'package:analyzer/task/model.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../generated/test_support.dart';
 import '../../reflective_tests.dart';
 import 'test_support.dart';
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(AnalysisTaskTest);
   runReflectiveTests(ContributionPointImplTest);
   runReflectiveTests(ResultDescriptorImplTest);
+  runReflectiveTests(SimpleResultCachingPolicyTest);
   runReflectiveTests(TaskDescriptorImplTest);
 }
 
 @reflectiveTest
 class AnalysisTaskTest extends EngineTestCase {
   test_getRequiredInput_missingKey() {
     AnalysisTarget target = new TestSource();
     AnalysisTask task = new TestAnalysisTask(null, target);
     task.inputs = {'a': 'b'};
     expect(() => task.getRequiredInput('c'),
@@ skipping 55 matching lines @@
   test_name() {
     String name = 'point';
     CompositeResultDescriptorImpl point =
         new CompositeResultDescriptorImpl(name);
     expect(point.name, name);
   }
 }
 
 @reflectiveTest
 class ResultDescriptorImplTest extends EngineTestCase {
+  test_create_withCachingPolicy() {
+    ResultCachingPolicy policy = new SimpleResultCachingPolicy(128, 16);
+    ResultDescriptorImpl result =
+        new ResultDescriptorImpl('result', null, cachingPolicy: policy);
+    expect(result.cachingPolicy, same(policy));
+  }
+
   test_create_withContribution() {
     CompositeResultDescriptorImpl point =
         new CompositeResultDescriptorImpl('point');
     ResultDescriptorImpl result =
         new ResultDescriptorImpl('result', null, contributesTo: point);
     expect(result, isNotNull);
     List<ResultDescriptor> contributors = point.contributors;
     expect(contributors, unorderedEquals([result]));
   }
 
+  test_create_withoutCachingPolicy() {
+    ResultDescriptorImpl result = new ResultDescriptorImpl('result', null);
+    ResultCachingPolicy cachingPolicy = result.cachingPolicy;
+    expect(cachingPolicy, isNotNull);
+    expect(cachingPolicy.maxActiveSize, -1);
+    expect(cachingPolicy.maxIdleSize, -1);
+  }
+
   test_create_withoutContribution() {
     expect(new ResultDescriptorImpl('name', null), isNotNull);
   }
 
   test_inputFor() {
     AnalysisTarget target = new TestSource();
     ResultDescriptorImpl result = new ResultDescriptorImpl('result', null);
     TaskInput input = result.of(target);
     expect(input, isNotNull);
   }
 
   test_name() {
     String name = 'result';
     ResultDescriptorImpl result = new ResultDescriptorImpl(name, null);
     expect(result.name, name);
   }
 }
 
 @reflectiveTest
+class SimpleResultCachingPolicyTest extends EngineTestCase {
+  test_create() {
+    ResultCachingPolicy policy = new SimpleResultCachingPolicy(256, 32);
+    expect(policy.maxActiveSize, 256);
+    expect(policy.maxIdleSize, 32);
+    expect(policy.measure(null), 1);
+  }
+}
+
+@reflectiveTest
 class TaskDescriptorImplTest extends EngineTestCase {
   test_create() {
     String name = 'name';
     BuildTask buildTask = (context, target) {};
     CreateTaskInputs createTaskInputs = (target) {};
     List<ResultDescriptor> results = <ResultDescriptor>[];
     TaskDescriptorImpl descriptor =
         new TaskDescriptorImpl(name, buildTask, createTaskInputs, results);
     expect(descriptor, isNotNull);
     expect(descriptor.name, name);
@@ skipping 15 matching lines @@
     String inputMemento = 'main() {}';
     AnalysisTask createTask =
         descriptor.createTask(context, target, inputs, inputMemento);
     expect(createTask, isNotNull);
     expect(createTask.context, context);
     expect(createTask.inputs, inputs);
     expect(createTask.inputMemento, inputMemento);
     expect(createTask.target, target);
   }
 }