diff --git a/fs-extra/fs-extra-tests.ts b/fs-extra/fs-extra-tests.ts
index 0919ef1b08..80655ab5b8 100644
--- a/fs-extra/fs-extra-tests.ts
+++ b/fs-extra/fs-extra-tests.ts
@@ -45,6 +45,7 @@ var openOpts: fs.OpenOptions;
 var watcher: fs.FSWatcher;
 var readStreeam: stream.Readable;
 var writeStream: stream.Writable;
+var outputStream: stream.Writable;
 
 fs.copy(src, dest, errorCallback);
 fs.copy(src, dest, (src: string) => {
@@ -150,7 +151,7 @@ strArr = fs.readdirSync(path);
 fs.close(fd, errorCallback);
 fs.closeSync(fd);
 fs.open(path, flags, modeStr, (err: Error, fd: number) => {
-    
+
 });
 num = fs.openSync(path, flags, modeStr);
 fs.utimes(path, atime, mtime, errorCallback);
@@ -217,6 +218,17 @@ fs.exists(path, (exists: boolean) => {
 });
 bool = fs.existsSync(path);
 
+fs.ensureDir(path, errorCallback);
+fs.ensureDirSync(path);
+fs.ensureFile(path, errorCallback);
+fs.ensureFileSync(path);
+fs.ensureLink(path, errorCallback);
+fs.ensureLinkSync(path);
+fs.ensureSymlink(path, errorCallback);
+fs.ensureSymlinkSync(path);
+fs.emptyDir(path, errorCallback);
+fs.emptyDirSync(path);
+
 readStreeam = fs.createReadStream(path);
 readStreeam = fs.createReadStream(path, {
 	flags: str,
@@ -231,3 +243,9 @@ writeStream = fs.createWriteStream(path, {
 	encoding: str,
 	string: str
 });
+outputStream = fs.createOutputStream(path);
+outputStream = fs.createOutputStream(path, {
+	flags: str,
+	encoding: str,
+	string: str
+});
diff --git a/fs-extra/fs-extra.d.ts b/fs-extra/fs-extra.d.ts
index 852956a71b..d997d12a89 100644
--- a/fs-extra/fs-extra.d.ts
+++ b/fs-extra/fs-extra.d.ts
@@ -167,6 +167,15 @@ declare module "fs-extra" {
 	export function exists(path: string, callback?: (exists: boolean) => void ): void;
 	export function existsSync(path: string): boolean;
     export function ensureDir(path: string, cb: (err: Error) => void): void;
+    export function ensureDirSync(path: string): void;
+	export function ensureFile(path: string, cb: (err: Error) => void): void;
+	export function ensureFileSync(path: string): void;
+	export function ensureLink(path: string, cb: (err: Error) => void): void;
+	export function ensureLinkSync(path: string): void;
+	export function ensureSymlink(path: string, cb: (err: Error) => void): void;
+	export function ensureSymlinkSync(path: string): void;
+    export function emptyDir(path: string, callback?: (err: Error) => void): void;
+    export function emptyDirSync(path: string): boolean;
 
 	export interface OpenOptions {
 		encoding?: string;
@@ -192,4 +201,5 @@ declare module "fs-extra" {
 	}
 	export function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
 	export function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
+	export function createOutputStream(path: string, options?: WriteStreamOptions): WriteStream;
 }