diff --git a/tests/js/session-tests.js b/tests/js/session-tests.js
index 1ea2bf25..390b6cf9 100644
--- a/tests/js/session-tests.js
+++ b/tests/js/session-tests.js
@@ -476,6 +476,10 @@ module.exports = {
         if (isNodeProccess) {
             realm = copyFileToTempDir(path.join(process.cwd(), "data", realm));
         }
+        else {
+            //copy the bundled RN realm files for the test
+            Realm.copyBundledRealmFiles();
+        }
 
         return Realm.Sync.User.register('http://localhost:9080', uuid(), 'password').then(user => {
             return new Promise((resolve, _reject) => {
@@ -510,6 +514,10 @@ module.exports = {
         if (isNodeProccess) {
             realm = copyFileToTempDir(path.join(process.cwd(), "data", realm));
         }
+        else {
+            //copy the bundled RN realm files for the test
+            Realm.copyBundledRealmFiles();
+        }
 
         return Realm.Sync.User.register('http://localhost:9080', uuid(), 'password').then(user => {
             return new Promise((resolve, _reject) => {
@@ -546,6 +554,10 @@ module.exports = {
         if (isNodeProccess) {
             realm = copyFileToTempDir(path.join(process.cwd(), "data", realm));
         }
+        else {
+            //copy the bundled RN realm files for the test
+            Realm.copyBundledRealmFiles();
+        }
 
         return Realm.Sync.User.register('http://localhost:9080', uuid(), 'password').then(user => {
             return new Promise((resolve, _reject) => {