change permission

Author: tinayuangao

e2e/screenshot.ts

@@ -45,11 +45,17 @@ export class Screenshot {
     var dir = path.resolve(this.dir, 'screenshots');
     if (!fs.existsSync(dir)) {
       console.error(`making dir for ${dir}`);
-      fs.mkdirSync(dir, 0x744);
+      fs.mkdirSync(dir, '777');
     }
-    console.error(`write to file ${this.fullPath}`);
-    fs.writeFileSync(this.fullPath, png, {encoding: 'base64' });
-    console.error(`wwrite is done`);
+
+    if (fs.existsSync(dir)) {
+      console.error(`write to file ${this.fullPath}`);
+      fs.writeFileSync(this.fullPath, png/*, {encoding: 'base64' }*/);
+      console.error(`wwrite is done`);
+    } else {
+      console.error(`make dir failed`);
+    }
+
   }
 }