cmdline flags override analysis options in file

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

 // Copyright (c) 2016, 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.context_builder_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
+import 'package:analyzer/src/command_line/arguments.dart';
 import 'package:analyzer/src/context/builder.dart';
 import 'package:analyzer/src/context/source.dart';
 import 'package:analyzer/src/generated/bazel.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:args/args.dart';
 import 'package:package_config/packages.dart';
 import 'package:package_config/src/packages_impl.dart';
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../../embedder_tests.dart';
 import '../../generated/test_support.dart';
 import 'mock_sdk.dart';
 
@@ skipping 78 matching lines @@
     contentCache = new ContentCache();
     builder = new ContextBuilder(resourceProvider, sdkManager, contentCache,
         options: builderOptions);
   }
 
   @failingTest
   void test_buildContext() {
     fail('Incomplete test');
   }
 
+  void test_cmdline_options_override_options_file() {
+    ArgParser argParser = new ArgParser();
+    defineAnalysisArguments(argParser);
+    ArgResults argResults = argParser.parse(['--$enableStrictCallChecksFlag']);
+    var builder = new ContextBuilder(resourceProvider, sdkManager, contentCache,
+        options: createContextBuilderOptions(argResults));
+
+    AnalysisOptionsImpl expected = new AnalysisOptionsImpl();
+    expected.enableSuperMixins = true;
+    expected.enableStrictCallChecks = true;
+
+    String path = resourceProvider.convertPath('/some/directory/path');
+    String filePath =
+    pathContext.join(path, AnalysisEngine.ANALYSIS_OPTIONS_YAML_FILE);
+    resourceProvider.newFile(
+        filePath,
+        '''
+analyzer:
+  language:
+    enableSuperMixins : true
+    enableStrictCallChecks : false
+''');
+
+    AnalysisOptions options = builder.getAnalysisOptions(path);
+    _expectEqualOptions(options, expected);
+  }
+
   void test_convertPackagesToMap_noPackages() {
     expect(builder.convertPackagesToMap(Packages.noPackages), isEmpty);
   }
 
   void test_convertPackagesToMap_null() {
     expect(builder.convertPackagesToMap(null), isEmpty);
   }
 
   void test_convertPackagesToMap_packages() {
     String fooName = 'foo';
@@ skipping 599 matching lines @@
     expect(locator.embedderYamls, hasLength(0));
   }
 
   void test_valid() {
     EmbedderYamlLocator locator = new EmbedderYamlLocator({
       'fox': <Folder>[pathTranslator.getResource(foxLib)]
     });
     expect(locator.embedderYamls, hasLength(1));
   }
 }