diff --git a/js/js.translator/testData/package.json b/js/js.translator/testData/package.json
index 66dbd529c8d..1f714e3c093 100644
--- a/js/js.translator/testData/package.json
+++ b/js/js.translator/testData/package.json
@@ -1,5 +1,9 @@
-{ "dependencies" : {
-
-    "require-from-string" : "1.2.0"
+{
+  "dependencies" : {
+    "require-from-string": "1.2.0"
+  },
+  "devDependencies" : {
+    "mocha": "3.2.0",
+    "mocha-teamcity-reporter": "1.1.1"
   }
 }
\ No newline at end of file
diff --git a/node_utils.xml b/node_utils.xml
index 8d4f94b78a7..ff4965f82e9 100644
--- a/node_utils.xml
+++ b/node_utils.xml
@@ -44,7 +44,6 @@
 
         <move file="${dependencies}/${node.full.name}" tofile="${dependencies}/node"/>
         <delete dir="${dependencies}/${node.full.name}"/>
-        <delete file="${node.tar.gz}"/>
 
         <sequential if:set="isWindows">
             <get src="${url.node.exe}" dest="${node.exe}" usetimestamp="true"/>
@@ -120,4 +119,12 @@
     <target name="unzip-jslib.jar">
         <unzip src="${output}/kotlinc/lib/kotlin-stdlib-js.jar" dest="${js.stdlib.output.dir}"/>
     </target>
+
+    <target name="run-nodejs-tests" description="Run JS backend tests in node.js" depends="download-nodejs-and-npm">
+        <npm command="install" dir="js/js.translator/testData" />
+        <exec executable="node_modules/mocha/bin/mocha" dir="js/js.translator/testData" failonerror="true">
+            <arg value="--reporter"/>
+            <arg value="mocha-teamcity-reporter"/>
+        </exec>
+    </target>
 </project>
diff --git a/update_dependencies.xml b/update_dependencies.xml
index 6ea08dd976c..67240bca6b9 100644
--- a/update_dependencies.xml
+++ b/update_dependencies.xml
@@ -1,5 +1,6 @@
 <project xmlns:if="ant:if" xmlns:unless="ant:unless" name="Update Dependencies" default="update">
     <import file="common.xml" optional="false"/>
+    <import file="node_utils.xml" optional="false"/>
 
     <property name="automerge_dummy" value="This property is used to trick git merge. Do not delete empty lines around."/>
     <property name="ideaVersion" value="171-SNAPSHOT"/>
@@ -318,6 +319,9 @@
             usetimestamp="true"
             build.number.pattern="\d+\s-\sKotlin\s[\w-+\.]+"
         />
+
+        <!-- node.js -->
+        <antcall target="download-nodejs-and-npm"/>
     </target>
 
     <macrodef name="get-protobuf-and-rename-packages">