Use promisified methods for login and register to have backward compatibility testing as well

tests/js/session-tests.js

@@ -50,6 +50,32 @@ function uuid() {
     });
 }
 
+function promisifiedRegister(server, username, password) {
+    return new Promise((resolve, reject) => {
+        Realm.Sync.User.register(server, username, password, (error, user) => {
+            if (error) {
+                console.log(`promisifiedRegister ${error}`);
+                reject(error);
+            } else {
+                resolve(user);
+            }
+        });
+    });
+}
+
+function promisifiedLogin(server, username, password) {
+    return new Promise((resolve, reject) => {
+        Realm.Sync.User.login(server, username, password, (error, user) => {
+            if (error) {
+                console.log(`promisifiedLogin ${error}`);
+                reject(error);
+            } else {
+                resolve(user);
+            }
+        });
+    });
+}
+
 function runOutOfProcess(nodeJsFilePath) {
     var nodeArgs = Array.prototype.slice.call(arguments);
     let tmpDir = tmp.dirSync();
@@ -85,7 +111,7 @@ module.exports = {
     },
 
     testProperties() {
-        return Realm.Sync.User.login('http://localhost:9080', uuid(), 'password').then(user => {
+        return promisifiedRegister('http://localhost:9080', uuid(), 'password').then(user => {
             return new Promise((resolve, reject) => {
 
                 const accessTokenRefreshed = this;
@@ -136,7 +162,7 @@ module.exports = {
 
         return runOutOfProcess(__dirname + '/download-api-helper.js', username, realmName, REALM_MODULE_PATH)
             .then(() => {
-                return Realm.Sync.User.login('http://localhost:9080', username, 'password').then(user => {
+                return promisifiedLogin('http://localhost:9080', username, 'password').then(user => {
                     const accessTokenRefreshed = this;
                     let successCounter = 0;
 
@@ -446,7 +472,7 @@ module.exports = {
 
         return runOutOfProcess(__dirname + '/download-api-helper.js', username, realmName, REALM_MODULE_PATH)
             .then(() => {
-                return promisifiedLogin('http://localhost:9080', username, 'password').then(user => {
+                return Realm.Sync.User.login('http://localhost:9080', username, 'password').then(user => {
                     return new Promise((resolve, reject) => {
                         let config = {
                             sync: {
@@ -481,7 +507,7 @@ module.exports = {
 
         return runOutOfProcess(__dirname + '/download-api-helper.js', username, realmName, REALM_MODULE_PATH)
             .then(() => {
-                return promisifiedLogin('http://localhost:9080', username, 'password').then(user => {
+                return Realm.Sync.User.login('http://localhost:9080', username, 'password').then(user => {
                     return new Promise((resolve, reject) => {
                         let config = {
                             sync: {
@@ -548,7 +574,7 @@ module.exports = {
 
         return runOutOfProcess(__dirname + '/download-api-helper.js', username, realmName, REALM_MODULE_PATH)
             .then(() => {
-                return promisifiedLogin('http://localhost:9080', username, 'password').then(user => {
+                return Realm.Sync.User.login('http://localhost:9080', username, 'password').then(user => {
                     return new Promise((resolve, reject) => {
                         let config = {
                             sync: {
@@ -587,7 +613,7 @@ module.exports = {
 
         return runOutOfProcess(__dirname + '/download-api-helper.js', username, realmName, REALM_MODULE_PATH)
             .then(() => {
-                return promisifiedLogin('http://localhost:9080', username, 'password').then(user => {
+                return Realm.Sync.User.login('http://localhost:9080', username, 'password').then(user => {
                     return new Promise((resolve, reject) => {
                         let config = {
                             sync: {