function findWindowOnFilePath<W extends ISimpleWindow>(windows: W[], fileUri: URI, localWorkspaceResolver: (workspace: IWorkspaceIdentifier) => IResolvedWorkspace | null): W | null {

	// First check for windows with workspaces that have a parent folder of the provided path opened
	for (const window of windows) {
		const workspace = window.openedWorkspace;
		if (workspace) {
			const resolvedWorkspace = localWorkspaceResolver(workspace);
			if (resolvedWorkspace) {
				// workspace could be resolved: It's in the local file system
				if (resolvedWorkspace.folders.some(folder => isEqualOrParent(fileUri, folder.uri))) {
					return window;
				}
			} else {
				// use the config path instead
				if (isEqualOrParent(fileUri, workspace.configPath)) {
					return window;
				}
			}
		}
	}

	// Then go with single folder windows that are parent of the provided file path
	const singleFolderWindowsOnFilePath = windows.filter(window => window.openedFolderUri && isEqualOrParent(fileUri, window.openedFolderUri));
	if (singleFolderWindowsOnFilePath.length) {
		return singleFolderWindowsOnFilePath.sort((a, b) => -(a.openedFolderUri!.path.length - b.openedFolderUri!.path.length))[0];
	}

	return null;
}

		return this._changes.some(change => {
			if (change.type !== type) {
				return false;
			}

			// For deleted also return true when deleted folder is parent of target path
			if (type === FileChangeType.DELETED) {
				return isEqualOrParent(resource, change.resource, !isLinux /* ignorecase */);
			}

			return isEqual(resource, change.resource, !isLinux /* ignorecase */);
		});

export function getSimpleWorkspaceLabel(workspace: IWorkspaceIdentifier | URI, workspaceHome: URI): string {
	if (isSingleFolderWorkspaceIdentifier(workspace)) {
		return basename(workspace);
	}
	// Workspace: Untitled
	if (isEqualOrParent(workspace.configPath, workspaceHome)) {
		return localize('untitledWorkspace', "Untitled (Workspace)");
	}

	const filename = basename(workspace.configPath);
	const workspaceName = filename.substr(0, filename.length - WORKSPACE_EXTENSION.length - 1);
	return localize('workspaceName', "{0} (Workspace)", workspaceName);
}

export function getStoredWorkspaceFolder(folderURI: URI, folderName: string | undefined, targetConfigFolderURI: URI, useSlashForPath = !isWindows): IStoredWorkspaceFolder {

	if (folderURI.scheme !== targetConfigFolderURI.scheme) {
		return { name: folderName, uri: folderURI.toString(true) };
	}

	let folderPath: string | undefined;
	if (isEqualOrParent(folderURI, targetConfigFolderURI)) {
		// use relative path
		folderPath = relativePath(targetConfigFolderURI, folderURI) || '.'; // always uses forward slashes
		if (isWindows && folderURI.scheme === Schemas.file && !useSlashForPath) {
			// Windows gets special treatment:
			// - use backslahes unless slash is used by other existing folders
			folderPath = folderPath.replace(/\//g, '\\');
		}
	} else {
		// use absolute path
		if (folderURI.scheme === Schemas.file) {
			folderPath = folderURI.fsPath;
			if (isWindows) {
				// Windows gets special treatment:
				// - normalize all paths to get nice casing of drive letters
				// - use backslahes unless slash is used by other existing folders
				folderPath = normalizeDriveLetter(folderPath);
				if (useSlashForPath) {
					folderPath = toSlashes(folderPath);
				}
			}
		} else {
			if (!isEqualAuthority(folderURI.authority, targetConfigFolderURI.authority)) {
				return { name: folderName, uri: folderURI.toString(true) };
			}
			folderPath = folderURI.path;
		}
	}
	return { name: folderName, path: folderPath };
}

	test('isEqualOrParent', () => {
		let fileURI = isWindows ? URI.file('c:\\foo\\bar') : URI.file('/foo/bar');
		let fileURI2 = isWindows ? URI.file('c:\\foo') : URI.file('/foo');
		let fileURI2b = isWindows ? URI.file('C:\\Foo\\') : URI.file('/Foo/');
		assert.equal(isEqualOrParent(fileURI, fileURI, true), true, '1');
		assert.equal(isEqualOrParent(fileURI, fileURI, false), true, '2');
		assert.equal(isEqualOrParent(fileURI, fileURI2, true), true, '3');
		assert.equal(isEqualOrParent(fileURI, fileURI2, false), true, '4');
		assert.equal(isEqualOrParent(fileURI, fileURI2b, true), true, '5');
		assert.equal(isEqualOrParent(fileURI, fileURI2b, false), false, '6');

		assert.equal(isEqualOrParent(fileURI2, fileURI, false), false, '7');
		assert.equal(isEqualOrParent(fileURI2b, fileURI2, true), true, '8');

		let fileURI3 = URI.parse('foo://server:453/foo/bar/goo');
		let fileURI4 = URI.parse('foo://server:453/foo/');
		let fileURI5 = URI.parse('foo://server:453/foo');
		assert.equal(isEqualOrParent(fileURI3, fileURI3, true), true, '11');
		assert.equal(isEqualOrParent(fileURI3, fileURI3, false), true, '12');
		assert.equal(isEqualOrParent(fileURI3, fileURI4, true), true, '13');
		assert.equal(isEqualOrParent(fileURI3, fileURI4, false), true, '14');
		assert.equal(isEqualOrParent(fileURI3, fileURI, true), false, '15');
		assert.equal(isEqualOrParent(fileURI5, fileURI5, true), true, '16');
	});

	const singleFolderWindowsOnFilePath = windows.filter(window => window.openedFolderUri && isEqualOrParent(fileUri, window.openedFolderUri));

		if (resolvedWorkspace && resolvedWorkspace.folders.some(folder => isEqualOrParent(fileUri, folder.uri))) {