diff --git a/js-jasmine/src/backstage_pass_update.js b/js-jasmine/src/backstage_pass_update.js
index c8cf944e..3c11742e 100644
--- a/js-jasmine/src/backstage_pass_update.js
+++ b/js-jasmine/src/backstage_pass_update.js
@@ -1,5 +1,17 @@
+function getQualityChange(item) {
+  if (item.sellIn <= 0) {
+    return -item.quality;
+  } else if (item.sellIn <= 5) {
+    return 3;
+  } else if (item.sellIn <= 10) {
+    return 2;
+  } else {
+    return 1;
+  }
+}
+
 function isBackstagePass(item) {
   return item.name.toLowerCase().match(/backstage pass/);
 };
 
-module.exports = { isBackstagePass }
\ No newline at end of file
+module.exports = { isBackstagePass, getQualityChange };
\ No newline at end of file
diff --git a/js-jasmine/src/shop.js b/js-jasmine/src/shop.js
index 8e487cad..02512bc2 100644
--- a/js-jasmine/src/shop.js
+++ b/js-jasmine/src/shop.js
@@ -26,7 +26,7 @@ class Shop {
 
   _getQualityChange(item) {
     if (bsp.isBackstagePass(item)) {
-      return this._getQualityChangeBackstagePass(item);
+      return bsp.getQualityChange(item);
     } else if (this._isAgedBrie(item)) {
       return this._getQualityChangeAgedBrie(item);
     } else if (this._isSulfuras(item)) {
@@ -52,18 +52,6 @@ class Shop {
     }
   }
 
-  _getQualityChangeBackstagePass(item) {
-    if (item.sellIn <= 0) {
-      return -item.quality;
-    } else if (item.sellIn <= 5) {
-      return 3;
-    } else if (item.sellIn <= 10) {
-      return 2;
-    } else {
-      return 1;
-    }
-  }
-
   _getQualityChangeAgedBrie(item) {
     if (item.sellIn <= 0) {
       return 2;