Roll Observatory packages and add a roll script

packages/analyzer/test/source/package_map_provider_test.dart

Index: packages/analyzer/test/source/package_map_provider_test.dart
diff --git a/packages/analyzer/test/source/package_map_provider_test.dart b/packages/analyzer/test/source/package_map_provider_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..af5bedf26cc56779cc53be2612d89efb45b58ac8
--- /dev/null
+++ b/packages/analyzer/test/source/package_map_provider_test.dart
@@ -0,0 +1,126 @@
+// Copyright (c) 2014, 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.package.map.provider;
+
+import 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/file_system/memory_file_system.dart';
+import 'package:analyzer/source/package_map_provider.dart';
+import 'package:analyzer/source/pub_package_map_provider.dart';
+import 'package:analyzer/src/generated/sdk_io.dart';
+import 'package:unittest/unittest.dart';
+
+import '../utils.dart';
+
+main() {
+  initializeTestEnvironment();
+
+  group('PubPackageMapProvider', () {
+    group('parsePackageMap', () {
+      MemoryResourceProvider resourceProvider;
+      PubPackageMapProvider packageMapProvider;
+      const String projectPath = '/path/to/project';
+      Folder projectFolder;
+
+      setUp(() {
+        resourceProvider = new MemoryResourceProvider();
+        packageMapProvider = new PubPackageMapProvider(
+            resourceProvider, DirectoryBasedDartSdk.defaultSdk);
+        projectFolder = resourceProvider.newFolder(projectPath);
+      });
+
+      PackageMapInfo parsePackageMap(Object obj) {
+        return packageMapProvider.parsePackageMap(obj, projectFolder);
+      }
+
+      test('normal folder', () {
+        String packageName = 'foo';
+        String folderPath = '/path/to/folder';
+        resourceProvider.newFolder(folderPath);
+        Map<String, List<Folder>> result = parsePackageMap({
+          'packages': {packageName: folderPath}
+        }).packageMap;
+        expect(result, hasLength(1));
+        expect(result.keys, contains(packageName));
+        expect(result[packageName], hasLength(1));
+        expect(result[packageName][0], new isInstanceOf<Folder>());
+        expect(result[packageName][0].path, equals(folderPath));
+      });
+
+      test("don't ignore nonexistent folder", () {
+        String packageName = 'foo';
+        String folderPath = '/path/to/folder';
+        Map<String, List<Folder>> result = parsePackageMap({
+          'packages': {packageName: folderPath}
+        }).packageMap;
+        expect(result, hasLength(1));
+        expect(result.keys, contains(packageName));
+        expect(result[packageName], hasLength(1));
+        expect(result[packageName][0], new isInstanceOf<Folder>());
+        expect(result[packageName][0].path, equals(folderPath));
+      });
+
+      test('package maps to list', () {
+        String packageName = 'foo';
+        String folderPath1 = '/path/to/folder1';
+        String folderPath2 = '/path/to/folder2';
+        resourceProvider.newFolder(folderPath1);
+        resourceProvider.newFolder(folderPath2);
+        Map<String, List<Folder>> result = parsePackageMap({
+          'packages': {
+            packageName: [folderPath1, folderPath2]
+          }
+        }).packageMap;
+        expect(result, hasLength(1));
+        expect(result.keys, contains(packageName));
+        expect(result[packageName], hasLength(2));
+        for (int i = 0; i < 2; i++) {
+          expect(result[packageName][i], new isInstanceOf<Folder>());
+          expect(result[packageName][i].path, isIn([folderPath1, folderPath2]));
+        }
+      });
+
+      test('Handle dependencies', () {
+        String path1 = '/path/to/folder1/pubspec.lock';
+        String path2 = '/path/to/folder2/pubspec.lock';
+        resourceProvider.newFile(path1, '...');
+        resourceProvider.newFile(path2, '...');
+        Set<String> dependencies = parsePackageMap({
+          'packages': {},
+          'input_files': [path1, path2]
+        }).dependencies;
+        expect(dependencies, hasLength(2));
+        expect(dependencies, contains(path1));
+        expect(dependencies, contains(path2));
+      });
+
+      test('Relative path in packages', () {
+        String packagePath = '/path/to/package';
+        String relativePackagePath = '../package';
+        String packageName = 'foo';
+        resourceProvider.newFolder(projectPath);
+        resourceProvider.newFolder(packagePath);
+        Map<String, List<Folder>> result = parsePackageMap({
+          'packages': {
+            packageName: [relativePackagePath]
+          }
+        }).packageMap;
+        expect(result[packageName][0].path, equals(packagePath));
+      });
+
+      test('Relative path in dependencies', () {
+        String dependencyPath = '/path/to/pubspec.lock';
+        String relativeDependencyPath = '../pubspec.lock';
+        resourceProvider.newFolder(projectPath);
+        resourceProvider.newFile(dependencyPath, 'contents');
+        Set<String> dependencies = parsePackageMap({
+          'packages': {},
+          'input_files': [relativeDependencyPath]
+        }).dependencies;
+        expect(dependencies, hasLength(1));
+        expect(dependencies, contains(dependencyPath));
+      });
+    });
+  });
+}