Update localForage tests

Author: Garciat

localForage/localForage-tests.ts

@@ -1,13 +1,6 @@
 /// <reference path="localForage.d.ts" />
 
-declare var localForage: lf.ILocalForage<string>;
-declare var callback: lf.ICallback<string>;
-declare var iterateCallback: lf.IIterateCallback<string>;
-declare var errorCallback: lf.IErrorCallback;
-declare var keyCallback: lf.IKeyCallback;
-declare var keysCallback: lf.IKeysCallback;
-declare var numberCallback: lf.INumberCallback;
-declare var promise: lf.IPromise<string>;
+declare var localForage: LocalForage;
 
 () => {
     localForage.clear((err: any) => {
@@ -25,7 +18,7 @@ declare var promise: lf.IPromise<string>;
         var newNumber: number = num;
     });
 
-    localForage.key(0,(err: any, value: string) => {
+    localForage.key(0, (err: any, value: string) => {
         var newError: any = err;
         var newValue: string = value;
     });
@@ -40,29 +33,23 @@ declare var promise: lf.IPromise<string>;
         var newStr: string = str
     });
 
-    localForage.getItem("key").then((err: any, str: string) => {
-        var newError: any = err;
-        var newStr: string = str
+    localForage.getItem<string>("key").then((str: string) => {
+        var newStr: string = str;
     });
 
     localForage.setItem("key", "value",(err: any, str: string) => {
         var newError: any = err;
         var newStr: string = str
     });
 
-    localForage.setItem("key", "value").then((err: any, str: string) => {
-        var newError: any = err;
+    localForage.setItem("key", "value").then((str: string) => {
         var newStr: string = str;
     });
 
     localForage.removeItem("key",(err: any) => {
         var newError: any = err;
     });
 
-    localForage.removeItem("key").then((err: any, str: string) => {
-        var newError: any = err;
-        var newStr: string = str
+    localForage.removeItem("key").then(() => {
     });
-  
-    promise.then(callback);
 }