More fixes for testing under windows

pkg/analyzer/test/file_system/memory_file_system_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 analyzer.test.file_system.memory_file_system_test;
 
 import 'dart:async';
 import 'dart:core';
 
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 31 matching lines @@
     expect(exception.toString(),
         'FileSystemException(path=/my/path; message=my message)');
   }
 }
 
 @reflectiveTest
 class FileTest {
   MemoryResourceProvider provider = new MemoryResourceProvider();
 
   void test_delete() {
-    File file = provider.newFile('/foo/file.txt', 'content');
+    File file =
+        provider.newFile(provider.convertPath('/foo/file.txt'), 'content');
     expect(file.exists, isTrue);
     // delete
     file.delete();
     expect(file.exists, isFalse);
   }
 
   void test_equals_beforeAndAfterCreate() {
-    String path = '/file.txt';
+    String path = provider.convertPath('/file.txt');
     File file1 = provider.getResource(path);
     provider.newFile(path, 'contents');
     File file2 = provider.getResource(path);
     expect(file1 == file2, isTrue);
   }
 
   void test_equals_false() {
-    File fileA = provider.getResource('/fileA.txt');
-    File fileB = provider.getResource('/fileB.txt');
+    File fileA = provider.getResource(provider.convertPath('/fileA.txt'));
+    File fileB = provider.getResource(provider.convertPath('/fileB.txt'));
     expect(fileA == new Object(), isFalse);
     expect(fileA == fileB, isFalse);
   }
 
   void test_equals_true() {
-    File file = provider.getResource('/file.txt');
+    File file = provider.getResource(provider.convertPath('/file.txt'));
     expect(file == file, isTrue);
   }
 
   void test_exists_false() {
-    File file = provider.getResource('/file.txt');
+    File file = provider.getResource(provider.convertPath('/file.txt'));
     expect(file, isNotNull);
     expect(file.exists, isFalse);
   }
 
   void test_exists_true() {
-    provider.newFile('/foo/file.txt', 'qwerty');
-    File file = provider.getResource('/foo/file.txt');
+    String path = provider.convertPath('/foo/file.txt');
+    provider.newFile(path, 'qwerty');
+    File file = provider.getResource(path);
     expect(file, isNotNull);
     expect(file.exists, isTrue);
   }
 
   void test_fullName() {
-    File file = provider.getResource('/foo/bar/file.txt');
-    expect(file.path, '/foo/bar/file.txt');
+    String path = provider.convertPath('/foo/bar/file.txt');
+    File file = provider.getResource(path);
+    expect(file.path, path);
   }
 
   void test_hashCode() {
-    String path = '/foo/bar/file.txt';
+    String path = provider.convertPath('/foo/bar/file.txt');
     File file1 = provider.getResource(path);
     provider.newFile(path, 'contents');
     File file2 = provider.getResource(path);
     expect(file1.hashCode, equals(file2.hashCode));
   }
 
   void test_isOrContains() {
-    String path = '/foo/bar/file.txt';
+    String path = provider.convertPath('/foo/bar/file.txt');
     File file = provider.getResource(path);
     expect(file.isOrContains(path), isTrue);
-    expect(file.isOrContains('/foo/bar'), isFalse);
+    expect(file.isOrContains(provider.convertPath('/foo/bar')), isFalse);
   }
 
   void test_modificationStamp_doesNotExist() {
-    String path = '/foo/bar/file.txt';
+    String path = provider.convertPath('/foo/bar/file.txt');
     File file = provider.newFile(path, 'qwerty');
     provider.deleteFile(path);
     expect(() {
       file.modificationStamp;
     }, throwsA(_isFileSystemException));
   }
 
   void test_modificationStamp_exists() {
-    String path = '/foo/bar/file.txt';
+    String path = provider.convertPath('/foo/bar/file.txt');
     File file = provider.newFile(path, 'qwerty');
     expect(file.modificationStamp, isNonNegative);
   }
 
   void test_parent() {
-    provider.newFile('/foo/bar/file.txt', 'content');
-    File file = provider.getResource('/foo/bar/file.txt');
+    String path = provider.convertPath('/foo/bar/file.txt');
+    provider.newFile(path, 'content');
+    File file = provider.getResource(path);
     Resource parent = file.parent;
     expect(parent, new isInstanceOf<Folder>());
-    expect(parent.path, equals('/foo/bar'));
+    expect(parent.path, equals(provider.convertPath('/foo/bar')));
   }
 
   void test_readAsBytesSync_doesNotExist() {
-    File file = provider.getResource('/test.bin');
+    File file = provider.getResource(provider.convertPath('/test.bin'));
     expect(() {
       file.readAsBytesSync();
     }, throwsA(_isFileSystemException));
   }
 
   void test_readAsBytesSync_exists() {
     List<int> bytes = <int>[1, 2, 3, 4, 5];
-    File file = provider.newFileWithBytes('/file.bin', bytes);
+    File file =
+        provider.newFileWithBytes(provider.convertPath('/file.bin'), bytes);
     expect(file.readAsBytesSync(), bytes);
   }
 
   void test_readAsStringSync_doesNotExist() {
-    File file = provider.getResource('/test.txt');
+    File file = provider.getResource(provider.convertPath('/test.txt'));
     expect(() {
       file.readAsStringSync();
     }, throwsA(_isFileSystemException));
   }
 
   void test_readAsStringSync_exists() {
-    File file = provider.newFile('/file.txt', 'abc');
+    File file = provider.newFile(provider.convertPath('/file.txt'), 'abc');
     expect(file.readAsStringSync(), 'abc');
   }
 
   void test_renameSync_newDoesNotExist() {
-    String oldPath = '/foo/bar/file.txt';
-    String newPath = '/foo/bar/new-file.txt';
+    String oldPath = provider.convertPath('/foo/bar/file.txt');
+    String newPath = provider.convertPath('/foo/bar/new-file.txt');
     File file = provider.newFile(oldPath, 'text');
     File newFile = file.renameSync(newPath);
     expect(file.path, oldPath);
     expect(file.exists, isFalse);
     expect(newFile.path, newPath);
     expect(newFile.exists, isTrue);
     expect(newFile.readAsStringSync(), 'text');
   }
 
   void test_renameSync_newExists_file() {
-    String oldPath = '/foo/bar/file.txt';
-    String newPath = '/foo/bar/new-file.txt';
+    String oldPath = provider.convertPath('/foo/bar/file.txt');
+    String newPath = provider.convertPath('/foo/bar/new-file.txt');
     File file = provider.newFile(oldPath, 'text');
     provider.newFile(newPath, 'new text');
     File newFile = file.renameSync(newPath);
     expect(file.path, oldPath);
     expect(file.exists, isFalse);
     expect(newFile.path, newPath);
     expect(newFile.exists, isTrue);
     expect(newFile.readAsStringSync(), 'text');
   }
 
   void test_renameSync_newExists_folder() {
-    String oldPath = '/foo/bar/file.txt';
-    String newPath = '/foo/bar/baz';
+    String oldPath = provider.convertPath('/foo/bar/file.txt');
+    String newPath = provider.convertPath('/foo/bar/baz');
     File file = provider.newFile(oldPath, 'text');
     provider.newFolder(newPath);
     expect(() {
       file.renameSync(newPath);
     }, throwsA(_isFileSystemException));
     expect(file.path, oldPath);
     expect(file.exists, isTrue);
   }
 
   void test_resolveSymbolicLinksSync() {
-    File file = provider.newFile('/test.txt', 'text');
+    File file = provider.newFile(provider.convertPath('/test.txt'), 'text');
     expect(file.resolveSymbolicLinksSync(), file);
   }
 
   void test_shortName() {
-    File file = provider.getResource('/foo/bar/file.txt');
+    File file = provider.getResource(provider.convertPath('/foo/bar/file.txt'));
     expect(file.shortName, 'file.txt');
   }
 
   void test_toString() {
-    File file = provider.getResource('/foo/bar/file.txt');
-    expect(file.toString(), '/foo/bar/file.txt');
+    String path = provider.convertPath('/foo/bar/file.txt');
+    File file = provider.getResource(path);
+    expect(file.toString(), path);
   }
 
   void test_toUri() {
-    String path = '/foo/file.txt';
+    String path = provider.convertPath('/foo/file.txt');
     File file = provider.newFile(path, '');
-    expect(file.toUri(), new Uri.file(path, windows: false));
+    expect(file.toUri(), provider.pathContext.toUri(path));
   }
 
   void test_writeAsBytesSync_existing() {
     List<int> content = <int>[1, 2];
-    File file = provider.newFileWithBytes('/foo/file.bin', content);
+    File file = provider.newFileWithBytes(
+        provider.convertPath('/foo/file.bin'), content);
     expect(file.readAsBytesSync(), content);
     // write new bytes
     content = <int>[10, 20];
     file.writeAsBytesSync(content);
     expect(file.readAsBytesSync(), content);
   }
 
   void test_writeAsBytesSync_new() {
-    File file = provider.getFile('/foo/file.bin');
+    File file = provider.getFile(provider.convertPath('/foo/file.bin'));
     expect(file.exists, false);
     // write new bytes
     List<int> content = <int>[10, 20];
     file.writeAsBytesSync(content);
     expect(file.exists, true);
     expect(file.readAsBytesSync(), content);
   }
 
   void test_writeAsStringSync_existing() {
     String content = 'ab';
-    File file = provider.newFile('/foo/file.txt', content);
+    File file =
+        provider.newFile(provider.convertPath('/foo/file.txt'), content);
     expect(file.readAsStringSync(), content);
     // write new bytes
     content = 'CD';
     file.writeAsStringSync(content);
     expect(file.readAsStringSync(), content);
   }
 
   void test_writeAsStringSync_new() {
-    File file = provider.getFile('/foo/file.txt');
+    File file = provider.getFile(provider.convertPath('/foo/file.txt'));
     expect(file.exists, false);
     // write new bytes
     String content = 'ef';
     file.writeAsStringSync(content);
     expect(file.exists, true);
     expect(file.readAsStringSync(), content);
   }
 }
 
 @reflectiveTest
 class FolderTest {
-  static const String path = '/foo/bar';
-
   MemoryResourceProvider provider = new MemoryResourceProvider();
+  String path;
   Folder folder;
 
   void setUp() {
+    path = provider.convertPath('/foo/bar');
     folder = provider.newFolder(path);
   }
 
   void test_canonicalizePath() {
-    expect(folder.canonicalizePath('baz'), equals('/foo/bar/baz'));
-    expect(folder.canonicalizePath('/baz'), equals('/baz'));
-    expect(folder.canonicalizePath('../baz'), equals('/foo/baz'));
-    expect(folder.canonicalizePath('/a/b/../c'), equals('/a/c'));
-    expect(folder.canonicalizePath('./baz'), equals('/foo/bar/baz'));
-    expect(folder.canonicalizePath('/a/b/./c'), equals('/a/b/c'));
+    expect(folder.canonicalizePath(provider.convertPath('baz')),
+        equals(provider.convertPath('/foo/bar/baz')));
+    expect(folder.canonicalizePath(provider.convertPath('/baz')),
+        equals(provider.convertPath('/baz')));
+    expect(folder.canonicalizePath(provider.convertPath('../baz')),
+        equals(provider.convertPath('/foo/baz')));
+    expect(folder.canonicalizePath(provider.convertPath('/a/b/../c')),
+        equals(provider.convertPath('/a/c')));
+    expect(folder.canonicalizePath(provider.convertPath('./baz')),
+        equals(provider.convertPath('/foo/bar/baz')));
+    expect(folder.canonicalizePath(provider.convertPath('/a/b/./c')),
+        equals(provider.convertPath('/a/b/c')));
   }
 
   void test_contains() {
-    expect(folder.contains('/foo/bar/aaa.txt'), isTrue);
-    expect(folder.contains('/foo/bar/aaa/bbb.txt'), isTrue);
-    expect(folder.contains('/baz.txt'), isFalse);
-    expect(folder.contains('/foo/bar'), isFalse);
+    expect(folder.contains(provider.convertPath('/foo/bar/aaa.txt')), isTrue);
+    expect(
+        folder.contains(provider.convertPath('/foo/bar/aaa/bbb.txt')), isTrue);
+    expect(folder.contains(provider.convertPath('/baz.txt')), isFalse);
+    expect(folder.contains(provider.convertPath('/foo/bar')), isFalse);
   }
 
   void test_delete() {
-    Folder folder = provider.newFolder('/foo');
-    Folder barFolder = provider.newFolder('/foo/bar');
-    File aFile = provider.newFile('/foo/bar/a.txt', '');
-    File bFile = provider.newFile('/foo/b.txt', '');
+    Folder folder = provider.newFolder(provider.convertPath('/foo'));
+    Folder barFolder = provider.newFolder(provider.convertPath('/foo/bar'));
+    File aFile = provider.newFile(provider.convertPath('/foo/bar/a.txt'), '');
+    File bFile = provider.newFile(provider.convertPath('/foo/b.txt'), '');
     expect(folder.exists, isTrue);
     expect(barFolder.exists, isTrue);
     expect(aFile.exists, isTrue);
     expect(bFile.exists, isTrue);
     // delete 'folder'
     folder.delete();
     expect(folder.exists, isFalse);
     expect(barFolder.exists, isFalse);
     expect(aFile.exists, isFalse);
     expect(bFile.exists, isFalse);
   }
 
   void test_equal_false() {
-    String path2 = '/foo/baz';
+    String path2 = provider.convertPath('/foo/baz');
     Folder folder2 = provider.newFolder(path2);
     expect(folder == folder2, isFalse);
   }
 
   void test_equal_true() {
     Folder folder2 = provider.getResource(path);
     expect(folder == folder2, isTrue);
   }
 
   void test_getChild_doesNotExist() {
     File file = folder.getChild('file.txt');
     expect(file, isNotNull);
     expect(file.exists, isFalse);
   }
 
   void test_getChild_file() {
-    provider.newFile('/foo/bar/file.txt', 'content');
+    provider.newFile(provider.convertPath('/foo/bar/file.txt'), 'content');
     File child = folder.getChild('file.txt');
     expect(child, isNotNull);
     expect(child.exists, isTrue);
   }
 
   void test_getChild_folder() {
-    provider.newFolder('/foo/bar/baz');
+    provider.newFolder(provider.convertPath('/foo/bar/baz'));
     Folder child = folder.getChild('baz');
     expect(child, isNotNull);
     expect(child.exists, isTrue);
   }
 
   void test_getChildAssumingFile_doesNotExist() {
     File child = folder.getChildAssumingFile('name');
     expect(child, isNotNull);
     expect(child.exists, isFalse);
   }
 
   void test_getChildAssumingFile_file() {
-    provider.newFile('/foo/bar/name', 'content');
+    provider.newFile(provider.convertPath('/foo/bar/name'), 'content');
     File child = folder.getChildAssumingFile('name');
     expect(child, isNotNull);
     expect(child.exists, isTrue);
   }
 
   void test_getChildAssumingFile_folder() {
-    provider.newFolder('/foo/bar/name');
+    provider.newFolder(provider.convertPath('/foo/bar/name'));
     File child = folder.getChildAssumingFile('name');
     expect(child, isNotNull);
     expect(child.exists, isFalse);
   }
 
   void test_getChildAssumingFolder_doesNotExist() {
     Folder child = folder.getChildAssumingFolder('foldername');
     expect(child, isNotNull);
     expect(child.exists, isFalse);
   }
 
   void test_getChildAssumingFolder_file() {
-    provider.newFile('/foo/bar/foldername', 'content');
+    provider.newFile(provider.convertPath('/foo/bar/foldername'), 'content');
     Folder child = folder.getChildAssumingFolder('foldername');
     expect(child, isNotNull);
     expect(child.exists, isFalse);
   }
 
   void test_getChildAssumingFolder_folder() {
-    provider.newFolder('/foo/bar/foldername');
+    provider.newFolder(provider.convertPath('/foo/bar/foldername'));
     Folder child = folder.getChildAssumingFolder('foldername');
     expect(child, isNotNull);
     expect(child.exists, isTrue);
   }
 
   void test_getChildren_doesNotExist() {
     folder = folder.getChildAssumingFolder('no-such-folder');
     expect(() {
       folder.getChildren();
     }, throwsA(_isFileSystemException));
   }
 
   void test_getChildren_exists() {
-    provider.newFile('/foo/bar/a.txt', 'aaa');
-    provider.newFolder('/foo/bar/bFolder');
-    provider.newFile('/foo/bar/c.txt', 'ccc');
+    provider.newFile(provider.convertPath('/foo/bar/a.txt'), 'aaa');
+    provider.newFolder(provider.convertPath('/foo/bar/bFolder'));
+    provider.newFile(provider.convertPath('/foo/bar/c.txt'), 'ccc');
     // prepare 3 children
     List<Resource> children = folder.getChildren();
     expect(children, hasLength(3));
     children.sort((a, b) => a.shortName.compareTo(b.shortName));
     // check that each child exists
     children.forEach((child) {
       expect(child.exists, true);
     });
     // check names
     expect(children[0].shortName, 'a.txt');
     expect(children[1].shortName, 'bFolder');
     expect(children[2].shortName, 'c.txt');
     // check types
     expect(children[0], _isFile);
     expect(children[1], _isFolder);
     expect(children[2], _isFile);
   }
 
   void test_hashCode() {
     Folder folder2 = provider.getResource(path);
     expect(folder.hashCode, folder2.hashCode);
   }
 
   void test_isOrContains() {
-    expect(folder.isOrContains('/foo/bar'), isTrue);
-    expect(folder.isOrContains('/foo/bar/aaa.txt'), isTrue);
-    expect(folder.isOrContains('/foo/bar/aaa/bbb.txt'), isTrue);
-    expect(folder.isOrContains('/baz.txt'), isFalse);
+    expect(folder.isOrContains(provider.convertPath('/foo/bar')), isTrue);
+    expect(
+        folder.isOrContains(provider.convertPath('/foo/bar/aaa.txt')), isTrue);
+    expect(folder.isOrContains(provider.convertPath('/foo/bar/aaa/bbb.txt')),
+        isTrue);
+    expect(folder.isOrContains(provider.convertPath('/baz.txt')), isFalse);
   }
 
   void test_parent() {
     Resource parent1 = folder.parent;
     expect(parent1, new isInstanceOf<Folder>());
-    expect(parent1.path, equals('/foo'));
+    expect(parent1.path, equals(provider.convertPath('/foo')));
     Resource parent2 = parent1.parent;
     expect(parent2, new isInstanceOf<Folder>());
-    expect(parent2.path, equals('/'));
+    expect(parent2.path, equals(provider.convertPath('/')));
     expect(parent2.parent, isNull);
   }
 
   void test_toUri() {
-    String path = '/foo/directory';
+    String path = provider.convertPath('/foo/directory');
     Folder folder = provider.newFolder(path);
-    expect(folder.toUri(), new Uri.directory(path, windows: false));
+    expect(folder.toUri(), provider.pathContext.toUri(path));
   }
 }
 
 @reflectiveTest
 class MemoryFileSourceExistingTest {
   MemoryResourceProvider provider = new MemoryResourceProvider();
+  String path;
   Source source;
 
   setUp() {
-    File file = provider.newFile('/foo/test.dart', 'library test;');
+    path = provider.convertPath('/foo/test.dart');
+    File file = provider.newFile(path, 'library test;');
     source = file.createSource();
   }
 
   void test_contents() {
     TimestampedData<String> contents = source.contents;
     expect(contents.data, 'library test;');
   }
 
   void test_encoding() {
-    expect(source.encoding, 'file:///foo/test.dart');
+    String expected = 'file:///foo/test.dart';
+    if (provider.pathContext == windows) {
+      expected = 'file:///C:/foo/test.dart';
+    }
+    expect(source.encoding, expected);
   }
 
   void test_equals_false_differentFile() {
-    File fileA = provider.newFile('/foo/a.dart', '');
-    File fileB = provider.newFile('/foo/b.dart', '');
+    File fileA = provider.newFile(provider.convertPath('/foo/a.dart'), '');
+    File fileB = provider.newFile(provider.convertPath('/foo/b.dart'), '');
     Source sourceA = fileA.createSource();
     Source sourceB = fileB.createSource();
     expect(sourceA == sourceB, isFalse);
   }
 
   void test_equals_false_notMemorySource() {
-    File file = provider.newFile('/foo/test.dart', '');
+    File file = provider.newFile(path, '');
     Source source = file.createSource();
     expect(source == new Object(), isFalse);
   }
 
   void test_equals_true_sameFile() {
-    File file = provider.newFile('/foo/test.dart', '');
+    File file = provider.newFile(path, '');
     Source sourceA = file.createSource();
     Source sourceB = file.createSource();
     expect(sourceA == sourceB, isTrue);
   }
 
   void test_equals_true_self() {
-    File file = provider.newFile('/foo/test.dart', '');
+    File file = provider.newFile(path, '');
     Source source = file.createSource();
     expect(source == source, isTrue);
   }
 
   void test_exists() {
     expect(source.exists(), isTrue);
   }
 
   void test_fullName() {
-    expect(source.fullName, '/foo/test.dart');
+    expect(source.fullName, path);
   }
 
   void test_hashCode() {
     source.hashCode;
   }
 
   void test_resolveRelative() {
-    Uri relative = resolveRelativeUri(source.uri, new Uri.file('bar/baz.dart'));
-    expect(relative.path, '/foo/bar/baz.dart');
+    Uri relative = resolveRelativeUri(
+        source.uri,
+        provider.pathContext
+            .toUri(provider.pathContext.join('bar', 'baz.dart')));
+    expect(relative,
+        provider.pathContext.toUri(provider.convertPath('/foo/bar/baz.dart')));
   }
 
   void test_resolveRelative_dart() {
-    File file = provider.newFile('/sdk/lib/core/core.dart', '');
+    File file =
+        provider.newFile(provider.convertPath('/sdk/lib/core/core.dart'), '');
     Source source = file.createSource(Uri.parse('dart:core'));
     Uri resolved = resolveRelativeUri(source.uri, Uri.parse('int.dart'));
     expect(resolved.toString(), 'dart:core/int.dart');
   }
 
   void test_shortName() {
     expect(source.shortName, 'test.dart');
   }
 }
 
 @reflectiveTest
 class MemoryFileSourceNotExistingTest {
   MemoryResourceProvider provider = new MemoryResourceProvider();
+  String path;
   Source source;
 
   setUp() {
-    File file = provider.getResource('/foo/test.dart');
+    path = provider.convertPath('/foo/test.dart');
+    File file = provider.getResource(path);
     source = file.createSource();
   }
 
   void test_contents() {
     expect(() {
       source.contents;
     }, throwsA(_isFileSystemException));
   }
 
   void test_encoding() {
-    expect(source.encoding, 'file:///foo/test.dart');
+    String expected = 'file:///foo/test.dart';
+    if (provider.pathContext == windows) {
+      expected = 'file:///C:/foo/test.dart';
+    }
+    expect(source.encoding, expected);
   }
 
   void test_exists() {
     expect(source.exists(), isFalse);
   }
 
   void test_fullName() {
-    expect(source.fullName, '/foo/test.dart');
+    expect(source.fullName, path);
   }
 
   void test_modificationStamp() {
     expect(source.modificationStamp, -1);
   }
 
   void test_resolveRelative() {
-    Uri relative = resolveRelativeUri(source.uri, new Uri.file('bar/baz.dart'));
-    expect(relative.path, '/foo/bar/baz.dart');
+    Uri relative = resolveRelativeUri(
+        source.uri,
+        provider.pathContext
+            .toUri(provider.pathContext.join('bar', 'baz.dart')));
+    expect(relative,
+        provider.pathContext.toUri(provider.convertPath('/foo/bar/baz.dart')));
   }
 
   void test_shortName() {
     expect(source.shortName, 'test.dart');
   }
 }
 
 @reflectiveTest
 class MemoryResourceProviderTest {
   MemoryResourceProvider provider = new MemoryResourceProvider();
 
   void test_deleteFile_folder() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     provider.newFolder(path);
     expect(() {
       provider.deleteFile(path);
     }, throwsA(new isInstanceOf<ArgumentError>()));
     expect(provider.getResource(path), new isInstanceOf<Folder>());
   }
 
   void test_deleteFile_notExistent() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     expect(() {
       provider.deleteFile(path);
     }, throwsA(new isInstanceOf<ArgumentError>()));
     Resource file = provider.getResource(path);
     expect(file, isNotNull);
     expect(file.exists, isFalse);
   }
 
   void test_deleteFile_success() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     provider.newFile(path, 'contents');
     Resource file = provider.getResource(path);
     expect(file, new isInstanceOf<File>());
     expect(file.exists, isTrue);
     provider.deleteFile(path);
     expect(file.exists, isFalse);
   }
 
   test_getModificationTimes() async {
-    File file = provider.newFile('/test.dart', '');
+    File file = provider.newFile(provider.convertPath('/test.dart'), '');
     Source source = file.createSource();
     List<int> times = await provider.getModificationTimes([source]);
     expect(times, [source.modificationStamp]);
   }
 
   void test_getStateLocation_uniqueness() {
     String idOne = 'one';
     Folder folderOne = provider.getStateLocation(idOne);
     expect(folderOne, isNotNull);
     String idTwo = 'two';
     Folder folderTwo = provider.getStateLocation(idTwo);
     expect(folderTwo, isNotNull);
     expect(folderTwo, isNot(equals(folderOne)));
     expect(provider.getStateLocation(idOne), equals(folderOne));
   }
 
   void test_modifyFile_isFolder() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     provider.newFolder(path);
     expect(() {
       provider.modifyFile(path, 'contents');
     }, throwsA(new isInstanceOf<ArgumentError>()));
     expect(provider.getResource(path), new isInstanceOf<Folder>());
   }
 
   void test_modifyFile_notExistent() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     expect(() {
       provider.modifyFile(path, 'contents');
     }, throwsA(new isInstanceOf<ArgumentError>()));
     Resource file = provider.getResource(path);
     expect(file, isNotNull);
     expect(file.exists, isFalse);
   }
 
   void test_modifyFile_success() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     provider.newFile(path, 'contents 1');
     Resource file = provider.getResource(path);
     expect(file, new isInstanceOf<File>());
     Source source = (file as File).createSource();
     expect(source.contents.data, equals('contents 1'));
     provider.modifyFile(path, 'contents 2');
     expect(source.contents.data, equals('contents 2'));
   }
 
   void test_newFileWithBytes() {
-    String path = '/my/file';
+    String path = provider.convertPath('/my/file');
     List<int> bytes = <int>[1, 2, 3, 4, 5];
     provider.newFileWithBytes(path, bytes);
     File file = provider.getResource(path);
     expect(file, isNotNull);
     expect(file.exists, isTrue);
     expect(file.readAsBytesSync(), bytes);
   }
 
   void test_newFolder_alreadyExists_asFile() {
-    provider.newFile('/my/file', 'qwerty');
+    provider.newFile(provider.convertPath('/my/file'), 'qwerty');
     expect(() {
-      provider.newFolder('/my/file');
+      provider.newFolder(provider.convertPath('/my/file'));
     }, throwsA(new isInstanceOf<ArgumentError>()));
   }
 
   void test_newFolder_alreadyExists_asFolder() {
-    Folder folder = provider.newFolder('/my/folder');
-    Folder newFolder = provider.newFolder('/my/folder');
+    String path = provider.convertPath('/my/folder');
+    Folder folder = provider.newFolder(path);
+    Folder newFolder = provider.newFolder(path);
     expect(newFolder, folder);
   }
 
   void test_newFolder_emptyPath() {
     expect(() {
       provider.newFolder('');
     }, throwsA(new isInstanceOf<ArgumentError>()));
   }
 
   void test_newFolder_notAbsolute() {
     expect(() {
       provider.newFolder('not/absolute');
     }, throwsA(new isInstanceOf<ArgumentError>()));
   }
 
   test_watch_createFile() {
-    String rootPath = '/my/path';
+    String rootPath = provider.convertPath('/my/path');
     provider.newFolder(rootPath);
     return _watchingFolder(rootPath, (changesReceived) {
       expect(changesReceived, hasLength(0));
-      String path = posix.join(rootPath, 'foo');
+      String path = provider.pathContext.join(rootPath, 'foo');
       provider.newFile(path, 'contents');
       return _delayed(() {
         expect(changesReceived, hasLength(1));
         expect(changesReceived[0].type, equals(ChangeType.ADD));
         expect(changesReceived[0].path, equals(path));
       });
     });
   }
 
   test_watch_deleteFile() {
-    String rootPath = '/my/path';
+    String rootPath = provider.convertPath('/my/path');
     provider.newFolder(rootPath);
-    String path = posix.join(rootPath, 'foo');
+    String path = provider.pathContext.join(rootPath, 'foo');
     provider.newFile(path, 'contents 1');
     return _watchingFolder(rootPath, (changesReceived) {
       expect(changesReceived, hasLength(0));
       provider.deleteFile(path);
       return _delayed(() {
         expect(changesReceived, hasLength(1));
         expect(changesReceived[0].type, equals(ChangeType.REMOVE));
         expect(changesReceived[0].path, equals(path));
       });
     });
   }
 
   test_watch_modifyFile() {
-    String rootPath = '/my/path';
+    String rootPath = provider.convertPath('/my/path');
     provider.newFolder(rootPath);
-    String path = posix.join(rootPath, 'foo');
+    String path = provider.pathContext.join(rootPath, 'foo');
     provider.newFile(path, 'contents 1');
     return _watchingFolder(rootPath, (changesReceived) {
       expect(changesReceived, hasLength(0));
       provider.modifyFile(path, 'contents 2');
       return _delayed(() {
         expect(changesReceived, hasLength(1));
         expect(changesReceived[0].type, equals(ChangeType.MODIFY));
         expect(changesReceived[0].path, equals(path));
       });
     });
   }
 
   test_watch_modifyFile_inSubDir() {
-    String rootPath = '/my/path';
+    String rootPath = provider.convertPath('/my/path');
     provider.newFolder(rootPath);
-    String subdirPath = posix.join(rootPath, 'foo');
+    String subdirPath = provider.pathContext.join(rootPath, 'foo');
     provider.newFolder(subdirPath);
-    String path = posix.join(rootPath, 'bar');
+    String path = provider.pathContext.join(rootPath, 'bar');
     provider.newFile(path, 'contents 1');
     return _watchingFolder(rootPath, (changesReceived) {
       expect(changesReceived, hasLength(0));
       provider.modifyFile(path, 'contents 2');
       return _delayed(() {
         expect(changesReceived, hasLength(1));
         expect(changesReceived[0].type, equals(ChangeType.MODIFY));
         expect(changesReceived[0].path, equals(path));
       });
     });
   }
 
   Future _delayed(computation()) {
     return new Future.delayed(Duration.ZERO, computation);
   }
 
   _watchingFolder(String path, test(List<WatchEvent> changesReceived)) {
     Folder folder = provider.getResource(path);
     var changesReceived = <WatchEvent>[];
     folder.changes.listen(changesReceived.add);
     return test(changesReceived);
   }
 }