Support for excluded files/folders.

pkg/analysis_server/test/context_manager_test.dart

 // 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.context.directory.manager;
 
 import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/package_map_provider.dart';
 import 'package:analysis_testing/reflective_tests.dart';
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 38 matching lines @@
     manager.setRoots(<String>[projPath], <String>[]);
     expect(manager.currentContextFilePaths[projPath], isEmpty);
     // "packages" files are ignored during watch
     String filePath2 = posix.join(projPath, 'packages', 'file2.dart');
     resourceProvider.newFile(filePath2, 'contents');
     return pumpEventQueue().then((_) {
       expect(manager.currentContextFilePaths[projPath], isEmpty);
     });
   }
 
+  void test_isInAnalysisRoot_excluded() {
+    // prepare paths
+    String project = '/project';
+    String excludedFolder = '$project/excluded';
+    // set roots
+    resourceProvider.newFolder(project);
+    resourceProvider.newFolder(excludedFolder);
+    manager.setRoots(<String>[project], <String>[excludedFolder]);
+    // verify
+    expect(manager.isInAnalysisRoot('$excludedFolder/test.dart'), isFalse);
+  }
+
   void test_isInAnalysisRoot_inRoot() {
     manager.setRoots(<String>[projPath], <String>[]);
     expect(manager.isInAnalysisRoot('$projPath/test.dart'), isTrue);
   }
 
   void test_isInAnalysisRoot_notInRoot() {
     manager.setRoots(<String>[projPath], <String>[]);
     expect(manager.isInAnalysisRoot('/test.dart'), isFalse);
   }
 
@@ skipping 80 matching lines @@
 
   void test_setRoots_addFolderWithoutPubspec() {
     packageMapProvider.packageMap = null;
     manager.setRoots(<String>[projPath], <String>[]);
     // verify
     expect(manager.currentContextPaths, hasLength(1));
     expect(manager.currentContextPaths, contains(projPath));
     expect(manager.currentContextFilePaths[projPath], hasLength(0));
   }
 
+  void test_setRoots_exclude_newRoot_withExcludedFile() {
+    // prepare paths
+    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]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [file2]);
+  }
+
+  void test_setRoots_exclude_newRoot_withExcludedFolder() {
+    // prepare paths
+    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]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA]);
+  }
+
+  void test_setRoots_exclude_sameRoot_addExcludedFile() {
+    // prepare paths
+    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>[]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [file1, file2]);
+    // exclude "2"
+    manager.setRoots(<String>[project], <String>[file2]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [file1]);
+  }
+
+  void test_setRoots_exclude_sameRoot_addExcludedFolder() {
+    // prepare paths
+    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>[]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA, fileB]);
+    // exclude "bbb/"
+    manager.setRoots(<String>[project], <String>[folderB]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA]);
+  }
+
+  void test_setRoots_exclude_sameRoot_removeExcludedFile() {
+    // prepare paths
+    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]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [file1]);
+    // stop excluding "2"
+    manager.setRoots(<String>[project], <String>[]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [file1, file2]);
+  }
+
+  void test_setRoots_exclude_sameRoot_removeExcludedFolder() {
+    // prepare paths
+    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]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA]);
+    // stop excluding "bbb/"
+    manager.setRoots(<String>[project], <String>[]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA, fileB]);
+  }
+
   void test_setRoots_ignoreSubContext_ofSubContext() {
     // prepare paths
     String root = '/root';
     String rootFile = '$root/root.dart';
     String subProject = '$root/sub';
     String subPubspec = '$subProject/pubspec.yaml';
     String subFile = '$subProject/bin/sub.dart';
     String subSubPubspec = '$subProject/subsub/pubspec.yaml';
     // create files
     resourceProvider.newFile(rootFile, 'library root;');
@@ skipping 113 matching lines @@
     // add file in subfolder
     String filePath = posix.join(projPath, 'foo', 'bar.dart');
     resourceProvider.newFile(filePath, 'contents');
     // the file was added
     return pumpEventQueue().then((_) {
       expect(filePaths, hasLength(1));
       expect(filePaths, contains(filePath));
     });
   }
 
+  test_watch_addFile_excluded() {
+    // prepare paths
+    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;');
+    // set roots
+    manager.setRoots(<String>[project], <String>[folderB]);
+    manager.assertContextPaths([project]);
+    manager.assertContextFiles(project, [fileA]);
+    // add a file, ignored as excluded
+    resourceProvider.newFile(fileB, 'library b;');
+    return pumpEventQueue().then((_) {
+      manager.assertContextPaths([project]);
+      manager.assertContextFiles(project, [fileA]);
+    });
+  }
+
   test_watch_addPubspec_toRoot() {
     // prepare paths
     String root = '/root';
     String rootFile = '$root/root.dart';
     String rootPubspec = '$root/pubspec.yaml';
     // create files
     resourceProvider.newFile(rootFile, 'library root;');
     // set roots
     manager.setRoots(<String>[root], <String>[]);
     manager.assertContextPaths([root]);
@@ skipping 256 matching lines @@
     currentContextFilePaths.remove(path);
     currentContextPackageMaps.remove(path);
   }
 
   @override
   void updateContextPackageMap(Folder contextFolder, Map<String,
       List<Folder>> packageMap) {
     currentContextPackageMaps[contextFolder.path] = packageMap;
   }
 }