Initial version of SingleContextManager.

pkg/analysis_server/test/single_context_manager_test.dart

Index: pkg/analysis_server/test/single_context_manager_test.dart
diff --git a/pkg/analysis_server/test/single_context_manager_test.dart b/pkg/analysis_server/test/single_context_manager_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..81c28fb0fd776d5254cea5e9fa2a0a2edbada3f4
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+++ b/pkg/analysis_server/test/single_context_manager_test.dart
@@ -0,0 +1,309 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file

[Brian Wilkerson, 2016/04/25 15:31:06]

"2014" --> "2016"

+// 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.context.directory.manager.single;
+
+import 'dart:core' hide Resource;
+
+import 'package:analysis_server/src/single_context_manager.dart';
+import 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/file_system/memory_file_system.dart';
+import 'package:analyzer/src/generated/engine.dart';
+import 'package:analyzer/src/generated/java_io.dart';
+import 'package:analyzer/src/generated/sdk.dart';
+import 'package:analyzer/src/generated/source.dart';
+import 'package:analyzer/src/generated/source_io.dart';
+import 'package:analyzer/src/util/glob.dart';
+import 'package:linter/src/plugin/linter_plugin.dart';
+import 'package:path/path.dart';
+import 'package:plugin/manager.dart';
+import 'package:plugin/plugin.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+import 'package:unittest/unittest.dart';
+
+import 'context_manager_test.dart' show TestContextManagerCallbacks;
+import 'mock_sdk.dart';
+import 'utils.dart';
+
+main() {
+  initializeTestEnvironment();
+  defineReflectiveTests(SingleContextManagerTest);
+}
+
+@reflectiveTest
+class SingleContextManagerTest {
+  MemoryResourceProvider resourceProvider = new MemoryResourceProvider();
+
+  TestUriResolver packageResolver;
+  TestContextManagerCallbacks callbacks;
+  SingleContextManager manager;
+
+  /**
+   * TODO(scheglov) rename after copying tests!
+   */
+  String projPath = '/my/project';
+  Folder rootFolder;
+
+  List<Glob> get analysisFilesGlobs {
+    List<String> patterns = <String>[
+      '**/*.${AnalysisEngine.SUFFIX_DART}',
+      '**/*.${AnalysisEngine.SUFFIX_HTML}',
+    ];
+    return patterns
+        .map((pattern) => new Glob(JavaFile.pathContext.separator, pattern))
+        .toList();
+  }
+
+  String newFile(List<String> pathComponents, [String content = '']) {
+    String filePath = posix.joinAll(pathComponents);
+    resourceProvider.newFile(filePath, content);
+    return filePath;
+  }
+
+  String newFolder(List<String> pathComponents) {
+    String folderPath = posix.joinAll(pathComponents);
+    resourceProvider.newFolder(folderPath);
+    return folderPath;
+  }
+
+  void setUp() {
+    rootFolder = resourceProvider.newFolder(projPath);
+    packageResolver = new TestUriResolver(resourceProvider, rootFolder);
+
+    _processRequiredPlugins();
+    DartSdkManager sdkManager = new DartSdkManager((_) {
+      return new MockSdk();
+    });
+    manager = new SingleContextManager(resourceProvider, sdkManager,
+        _providePackageResolver, analysisFilesGlobs);
+    callbacks = new TestContextManagerCallbacks(resourceProvider);
+    manager.callbacks = callbacks;
+    resourceProvider.newFolder(projPath);
+  }
+
+  void test_setRoots_addFolderWithDartFile() {
+    String filePath = posix.join(projPath, 'lib', 'foo.dart');
+    resourceProvider.newFile(filePath, 'contents');
+    manager.setRoots(<String>[projPath], <String>[], <String, String>{});
+    // verify
+    Map<String, int> filePaths = callbacks.currentContextFilePaths[projPath];
+    expect(filePaths, hasLength(1));
+    expect(filePaths, contains(filePath));
+    // There is an analysis context.
+    List<AnalysisContext> contextsInAnalysisRoot =
+        manager.contextsInAnalysisRoot(rootFolder);
+    expect(contextsInAnalysisRoot, hasLength(1));
+    AnalysisContext context = contextsInAnalysisRoot[0];
+    expect(context, isNotNull);
+    // Files in lib/ have package: URIs.
+    Source result = context.sourceFactory.forUri('package:foo/foo.dart');
+    expect(result, isNotNull);
+    expect(result.exists(), isTrue);
+  }
+
+  void test_setRoots_addFolderWithDartFileInSubfolder() {
+    String filePath = posix.join(projPath, 'foo', 'bar.dart');
+    resourceProvider.newFile(filePath, 'contents');
+    manager.setRoots(<String>[projPath], <String>[], <String, String>{});
+    // verify
+    Map<String, int> filePaths = callbacks.currentContextFilePaths[projPath];
+    expect(filePaths, hasLength(1));
+    expect(filePaths, contains(filePath));
+  }
+
+  void test_setRoots_addFolderWithDummyLink() {
+    String filePath = posix.join(projPath, 'foo.dart');
+    resourceProvider.newDummyLink(filePath);
+    manager.setRoots(<String>[projPath], <String>[], <String, String>{});
+    // verify
+    Map<String, int> filePaths = callbacks.currentContextFilePaths[projPath];
+    expect(filePaths, isEmpty);
+  }
+
+  void test_setRoots_addFolderWithNestedPackageSpec() {
+    newFile([projPath, 'aaa', 'pubspec.yaml']);
+    newFile([projPath, 'bbb', 'pubspec.yaml']);
+    manager.setRoots(<String>[projPath], <String>[], <String, String>{});
+    // We don't care about pubspec.yaml files - still just one context.
+    callbacks.assertContextPaths([projPath]);
+    expect(manager.contextsInAnalysisRoot(rootFolder), hasLength(1));
+  }
+
+  void test_setRoots_exclude_newRoot_withExcludedFile() {
+    String project = '/project';
+    String file1 = '$project/file1.dart';
+    String file2 = '$project/file2.dart';
+    // create files
+    resourceProvider.newFile(file1, '// 1');
+    resourceProvider.newFile(file2, '// 2');
+    // set roots
+    manager.setRoots(<String>[project], <String>[file1], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file2]);
+  }
+
+  void test_setRoots_exclude_newRoot_withExcludedFolder() {
+    String project = '/project';
+    String folderA = '$project/aaa';
+    String folderB = '$project/bbb';
+    String fileA = '$folderA/a.dart';
+    String fileB = '$folderB/b.dart';
+    // create files
+    resourceProvider.newFile(fileA, 'library a;');
+    resourceProvider.newFile(fileB, 'library b;');
+    // set roots
+    manager.setRoots(<String>[project], <String>[folderB], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA]);
+  }
+
+  void test_setRoots_exclude_sameRoot_addExcludedFile() {
+    String project = '/project';
+    String file1 = '$project/file1.dart';
+    String file2 = '$project/file2.dart';
+    // create files
+    resourceProvider.newFile(file1, '// 1');
+    resourceProvider.newFile(file2, '// 2');
+    // set roots
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1, file2]);
+    // exclude "2"
+    manager.setRoots(<String>[project], <String>[file2], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1]);
+  }
+
+  void test_setRoots_exclude_sameRoot_addExcludedFolder() {
+    String project = '/project';
+    String folderA = '$project/aaa';
+    String folderB = '$project/bbb';
+    String fileA = '$folderA/a.dart';
+    String fileB = '$folderB/b.dart';
+    // create files
+    resourceProvider.newFile(fileA, 'library a;');
+    resourceProvider.newFile(fileB, 'library b;');
+    // initially both "aaa/a" and "bbb/b" are included
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA, fileB]);
+    // exclude "bbb/"
+    manager.setRoots(<String>[project], <String>[folderB], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA]);
+  }
+
+  void test_setRoots_exclude_sameRoot_removeExcludedFile() {
+    String project = '/project';
+    String file1 = '$project/file1.dart';
+    String file2 = '$project/file2.dart';
+    // create files
+    resourceProvider.newFile(file1, '// 1');
+    resourceProvider.newFile(file2, '// 2');
+    // set roots
+    manager.setRoots(<String>[project], <String>[file2], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1]);
+    // stop excluding "2"
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1, file2]);
+  }
+
+  void test_setRoots_exclude_sameRoot_removeExcludedFile_inFolder() {
+    String project = '/project';
+    String file1 = '$project/bin/file1.dart';
+    String file2 = '$project/bin/file2.dart';
+    // create files
+    resourceProvider.newFile(file1, '// 1');
+    resourceProvider.newFile(file2, '// 2');
+    // set roots
+    manager.setRoots(<String>[project], <String>[file2], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1]);
+    // stop excluding "2"
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [file1, file2]);
+  }
+
+  void test_setRoots_exclude_sameRoot_removeExcludedFolder() {
+    String project = '/project';
+    String folderA = '$project/aaa';
+    String folderB = '$project/bbb';
+    String fileA = '$folderA/a.dart';
+    String fileB = '$folderB/b.dart';
+    // create files
+    resourceProvider.newFile(fileA, 'library a;');
+    resourceProvider.newFile(fileB, 'library b;');
+    // exclude "bbb/"
+    manager.setRoots(<String>[project], <String>[folderB], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA]);
+    // stop excluding "bbb/"
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA, fileB]);
+  }
+
+  void test_setRoots_pathContainsDotFile() {
+    // If the path to a file (relative to the context root) contains a folder
+    // whose name begins with '.', then the file is ignored.
+    String project = '/project';
+    String fileA = '$project/foo.dart';
+    String fileB = '$project/.pub/bar.dart';
+    resourceProvider.newFile(fileA, '');
+    resourceProvider.newFile(fileB, '');
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA]);
+  }
+
+  void test_setRoots_rootPathContainsDotFile() {
+    // If the path to the context root itself contains a folder whose name
+    // begins with '.', then that is not sufficient to cause any files in the
+    // context to be ignored.
+    String project = '/.pub/project';
+    String fileA = '$project/foo.dart';
+    resourceProvider.newFile(fileA, '');
+    manager.setRoots(<String>[project], <String>[], <String, String>{});
+    callbacks.assertContextPaths([project]);
+    callbacks.assertContextFiles(project, [fileA]);
+  }
+
+  void _processRequiredPlugins() {
+    List<Plugin> plugins = <Plugin>[];
+    plugins.addAll(AnalysisEngine.instance.requiredPlugins);
+    plugins.add(AnalysisEngine.instance.commandLinePlugin);
+    plugins.add(AnalysisEngine.instance.optionsPlugin);
+    plugins.add(linterPlugin);
+    ExtensionManager manager = new ExtensionManager();
+    manager.processPlugins(plugins);
+  }
+
+  UriResolver _providePackageResolver(Folder folder) => packageResolver;
+}
+
+class TestUriResolver extends UriResolver {
+  final ResourceProvider resourceProvider;
+  final Folder rootFolder;
+
+  TestUriResolver(this.resourceProvider, this.rootFolder);
+
+  @override
+  Source resolveAbsolute(Uri uri, [Uri actualUri]) {
+    if (uri.scheme == 'package') {
+      List<String> segments = uri.pathSegments;
+      if (segments.length >= 2) {
+        List<String> relSegments = <String>['lib']..addAll(segments.skip(1));
+        String relPath = resourceProvider.pathContext.joinAll(relSegments);
+        Resource file = rootFolder.getChild(relPath);
+        if (file is File && file.exists) {
+          return file.createSource(uri);
+        }
+      }
+    }
+    return null;
+  }
+}