Revert "Revert "Use native async/await support in pub.""

sdk/lib/_internal/pub_generated/test/lock_file_test.dart

-// Copyright (c) 2012, 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 lock_file_test;
-
-import 'dart:async';
-
-import 'package:pub_semver/pub_semver.dart';
-import 'package:unittest/unittest.dart';
-import 'package:yaml/yaml.dart';
-
-import '../lib/src/lock_file.dart';
-import '../lib/src/package.dart';
-import '../lib/src/pubspec.dart';
-import '../lib/src/source.dart';
-import '../lib/src/source_registry.dart';
-import 'test_pub.dart';
-
-class MockSource extends Source {
-  final String name = 'mock';
-
-  Future<Pubspec> doDescribe(PackageId id) =>
-      throw new UnsupportedError("Cannot describe mock packages.");
-
-  Future get(PackageId id, String symlink) =>
-      throw new UnsupportedError("Cannot get a mock package.");
-
-  Future<String> getDirectory(PackageId id) =>
-      throw new UnsupportedError("Cannot get the directory for mock packages.");
-
-  dynamic parseDescription(String filePath, String description,
-      {bool fromLockFile: false}) {
-    if (!description.endsWith(' desc')) throw new FormatException();
-    return description;
-  }
-
-  bool descriptionsEqual(description1, description2) =>
-      description1 == description2;
-
-  String packageName(String description) {
-    // Strip off ' desc'.
-    return description.substring(0, description.length - 5);
-  }
-}
-
-main() {
-  initConfig();
-
-  var sources = new SourceRegistry();
-  var mockSource = new MockSource();
-  sources.register(mockSource);
-
-  group('LockFile', () {
-    group('parse()', () {
-      test('returns an empty lockfile if the contents are empty', () {
-        var lockFile = new LockFile.parse('', sources);
-        expect(lockFile.packages.length, equals(0));
-      });
-
-      test('returns an empty lockfile if the contents are whitespace', () {
-        var lockFile = new LockFile.parse('  \t\n  ', sources);
-        expect(lockFile.packages.length, equals(0));
-      });
-
-      test('parses a series of package descriptions', () {
-        var lockFile = new LockFile.parse('''
-packages:
-  bar:
-    version: 1.2.3
-    source: mock
-    description: bar desc
-  foo:
-    version: 2.3.4
-    source: mock
-    description: foo desc
-''', sources);
-
-        expect(lockFile.packages.length, equals(2));
-
-        var bar = lockFile.packages['bar'];
-        expect(bar.name, equals('bar'));
-        expect(bar.version, equals(new Version(1, 2, 3)));
-        expect(bar.source, equals(mockSource.name));
-        expect(bar.description, equals('bar desc'));
-
-        var foo = lockFile.packages['foo'];
-        expect(foo.name, equals('foo'));
-        expect(foo.version, equals(new Version(2, 3, 4)));
-        expect(foo.source, equals(mockSource.name));
-        expect(foo.description, equals('foo desc'));
-      });
-
-      test("allows an unknown source", () {
-        var lockFile = new LockFile.parse('''
-packages:
-  foo:
-    source: bad
-    version: 1.2.3
-    description: foo desc
-''', sources);
-        var foo = lockFile.packages['foo'];
-        expect(foo.source, equals('bad'));
-      });
-
-      test("allows an empty dependency map", () {
-        var lockFile = new LockFile.parse('''
-packages:
-''', sources);
-        expect(lockFile.packages, isEmpty);
-      });
-
-      test("throws if the top level is not a map", () {
-        expect(() {
-          new LockFile.parse('''
-not a map
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the contents of 'packages' is not a map", () {
-        expect(() {
-          new LockFile.parse('''
-packages: not a map
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the version is missing", () {
-        expect(() {
-          new LockFile.parse('''
-packages:
-  foo:
-    source: mock
-    description: foo desc
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the version is invalid", () {
-        expect(() {
-          new LockFile.parse('''
-packages:
-  foo:
-    version: vorpal
-    source: mock
-    description: foo desc
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the source is missing", () {
-        expect(() {
-          new LockFile.parse('''
-packages:
-  foo:
-    version: 1.2.3
-    description: foo desc
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the description is missing", () {
-        expect(() {
-          new LockFile.parse('''
-packages:
-  foo:
-    version: 1.2.3
-    source: mock
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("throws if the description is invalid", () {
-        expect(() {
-          new LockFile.parse('''
-packages:
-  foo:
-    version: 1.2.3
-    source: mock
-    description: foo desc is bad
-''', sources);
-        }, throwsFormatException);
-      });
-
-      test("ignores extra stuff in file", () {
-        var lockFile = new LockFile.parse('''
-extra:
-  some: stuff
-packages:
-  foo:
-    bonus: not used
-    version: 1.2.3
-    source: mock
-    description: foo desc
-''', sources);
-      });
-    });
-
-    group('serialize()', () {
-      var lockfile;
-      setUp(() {
-        lockfile = new LockFile.empty();
-      });
-
-      test('dumps the lockfile to YAML', () {
-        lockfile.packages['foo'] =
-            new PackageId('foo', mockSource.name, new Version.parse('1.2.3'), 'foo desc');
-        lockfile.packages['bar'] =
-            new PackageId('bar', mockSource.name, new Version.parse('3.2.1'), 'bar desc');
-
-        expect(loadYaml(lockfile.serialize(null, sources)), equals({
-          'packages': {
-            'foo': {
-              'version': '1.2.3',
-              'source': 'mock',
-              'description': 'foo desc'
-            },
-            'bar': {
-              'version': '3.2.1',
-              'source': 'mock',
-              'description': 'bar desc'
-            }
-          }
-        }));
-      });
-    });
-  });
-}