Add --build-summary-only-unlinked flag, which makes the output summary be an unlinked summary inste…

pkg/analyzer_cli/test/driver_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_cli.test.driver;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/source/analysis_options_provider.dart';
 import 'package:analyzer/source/error_processor.dart';
 import 'package:analyzer/src/error/codes.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/services/lint.dart';
+import 'package:analyzer/src/summary/idl.dart';
 import 'package:analyzer_cli/src/ansi.dart' as ansi;
 import 'package:analyzer_cli/src/driver.dart';
 import 'package:analyzer_cli/src/options.dart';
 import 'package:cli_util/cli_util.dart' show getSdkDir;
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 import 'package:yaml/src/yaml_node.dart';
 
 import 'utils.dart';
 
@@ skipping 378 matching lines @@
           expect(exitCode, isNot(0));
         });
 
         test(
             'Succeeds if there are errors, when --build-suppress-exit-code is given',
             () async {
           await doDrive(path.join('data', 'file_with_error.dart'),
               additionalArgs: ['--build-suppress-exit-code']);
           expect(exitCode, 0);
         });
+
+        test('Linked summary', () async {
+          await withTempDirAsync((tempDir) async {
+            var outputPath = path.join(tempDir, 'test_file.dart.sum');
+            await doDrive(path.join('data', 'test_file.dart'), additionalArgs: [
+              '--build-summary-only',
+              '--build-summary-output=$outputPath'
+            ]);
+            var output = new File(outputPath);
+            expect(output.existsSync(), isTrue);
+            PackageBundle bundle =
+                new PackageBundle.fromBuffer(await output.readAsBytes());
+            var testFileUri = 'file:///test_file.dart';
+            expect(bundle.unlinkedUnitUris, equals([testFileUri]));
+            expect(bundle.linkedLibraryUris, equals([testFileUri]));
+            expect(exitCode, 0);
+          });
+        });
+
+        test('Unlinked summary only', () async {
+          await withTempDirAsync((tempDir) async {
+            var outputPath = path.join(tempDir, 'test_file.dart.sum');
+            await doDrive(path.join('data', 'test_file.dart'), additionalArgs: [
+              '--build-summary-only',
+              '--build-summary-only-unlinked',
+              '--build-summary-output=$outputPath'
+            ]);
+            var output = new File(outputPath);
+            expect(output.existsSync(), isTrue);
+            PackageBundle bundle =
+                new PackageBundle.fromBuffer(await output.readAsBytes());
+            var testFileUri = 'file:///test_file.dart';
+            expect(bundle.unlinkedUnits.length, 1);
+            expect(bundle.unlinkedUnitUris, equals([testFileUri]));
+            expect(bundle.linkedLibraryUris, isEmpty);
+            expect(exitCode, 0);
+          });
+        });
       });
     }
 
     createTests('old', AnalysisEngine.ANALYSIS_OPTIONS_FILE);
     createTests('new', AnalysisEngine.ANALYSIS_OPTIONS_YAML_FILE);
 
 //TODO(pq): fix to be bot-friendly (sdk#25258).
 //    group('in temp directory', () {
 //      Directory savedCurrentDirectory;
 //      Directory tempDir;
@@ skipping 142 matching lines @@
 
 class TestSource implements Source {
   TestSource();
 
   @override
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
 
 /// Normalize text with bullets.
 String _bulletToDash(item) => '$item'.replaceAll('•', '-');