diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 44a16f9..c67887a 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -3,8 +3,14 @@ name: PHP Composer
 on:
   push:
     branches: [ master ]
+    paths-ignore:
+      - '**.md'
+      - 'doc/**'
   pull_request:
     branches: [ master ]
+    paths-ignore:
+      - '**.md'
+      - 'doc/**'
 
 jobs:
   build:
@@ -50,6 +56,7 @@ jobs:
         LEANCLOUD_APP_HOST: 127.0.0.1
         LEANCLOUD_APP_PORT: 8081
         LEANCLOUD_WILDCARD_DOMAIN: lncldglobal.com
+        LEANCLOUD_APP_ENV: production
       run: |
         make test_engine &
         php -r 'exit(PHP_VERSION_ID >= 70200 ? 0 : 1);' || vendor/bin/phpunit test/Php72ObjectDeprecated.php
diff --git a/src/LeanCloud/Engine/Cloud.php b/src/LeanCloud/Engine/Cloud.php
index 5205dda..1210866 100644
--- a/src/LeanCloud/Engine/Cloud.php
+++ b/src/LeanCloud/Engine/Cloud.php
@@ -242,8 +242,8 @@ public static function onInsight($func) {
      * ```
      *
      * @param string   $funcName Name of defined function
-     * @param array    $data     Array of parameters passed to function
-     * @param User $user     Request user
+     * @param array    $params   Array of parameters passed to function
+     * @param \LeanCloud\User    $user     Request user
      * @param array    $meta     Optional parameters that will be passed to
      *                           user function
      * @return mixed
@@ -258,6 +258,26 @@ public static function run($funcName, $params, $user=null, $meta=array()) {
         return call_user_func($func, $params, $user, $meta);
     }
 
+    /**
+     * Invokes a remote cloud function
+     *
+     * Example:
+     *
+     * ```php
+     * LeanEngine::runRemote("sayHello", array("name" => "alice"));
+     * ```
+     *
+     * @param string $funcName Name of defined function
+     * @param array $params Array of parameters passed to function
+     * @param string $sessionToken run this function as the user corresponding to this session token
+     *
+     * @return array JSON decoded associated array
+     * @see self::run
+     */
+    public static function runRemote($funcName, $params, $sessionToken=null) {
+        return Client::post("/functions/{$funcName}", $params, $sessionToken);
+    }
+
     /**
      * Start cloud function Stand-alone mode, start to process request.
      */
@@ -288,8 +308,8 @@ public static function stop() {
      *
      * @param string $className  Classname
      * @param string $hookName   Hook name, e.g. beforeUpdate
-     * @param LeanObject $object The object of attached hook
-     * @param User   $user   Request user
+     * @param \LeanCloud\LeanObject $object The object of attached hook
+     * @param \LeanCloud\User   $user   Request user
      * @param array      $meta   Optional parameters that will be passed to
      *                           user function
      * @return mixed
@@ -310,9 +330,10 @@ public static function runHook($className, $hookName, $object,
     /**
      * Run hook when a user logs in
      *
-     * @param User $user The user object that tries to login
+     * @param \LeanCloud\User $user The user object that tries to login
      * @param array    $meta Optional parameters that will be passed to
      *                       user function
+     * @return mixed
      * @throws FunctionError
      * @see self::onLogin
      */
@@ -324,9 +345,10 @@ public static function runOnLogin($user, $meta=array()) {
      * Run hook when user verified by Email or SMS
      *
      * @param string   $type Either "sms" or "email", case-sensitive
-     * @param User $user The verifying user
+     * @param \LeanCloud\User $user The verifying user
      * @param array    $meta Optional parameters that will be passed to
      *                       user function
+     * @return mixed
      * @throws FunctionError
      * @see self::onVerified
      */
diff --git a/test/CloudTest.php b/test/CloudTest.php
index 95b8614..48dfd8c 100644
--- a/test/CloudTest.php
+++ b/test/CloudTest.php
@@ -1,9 +1,40 @@
 <?php
 
+use LeanCloud\Client;
 use LeanCloud\Engine\Cloud;
+use LeanCloud\User;
 use PHPUnit\Framework\TestCase;
 
 class CloudTest extends TestCase {
+    public static function setUpBeforeClass() {
+        Client::initialize(
+            getenv("LEANCLOUD_APP_ID"),
+            getenv("LEANCLOUD_APP_KEY"),
+            getenv("LEANCLOUD_APP_MASTER_KEY"));
+
+        $user = new User();
+        $user->setUsername("alice");
+        $user->setPassword("blabla");
+        $user->setEmail("alice@example.com");
+        try {
+            $user->signUp();
+        } catch (CloudException $ex) {
+            // skip
+        }
+    }
+
+    public static function tearDownAfterClass() {
+        // destroy default user if present
+        try {
+            $user = User::logIn("alice", "blabla");
+            $user->destroy();
+        } catch (CloudException $ex) {
+            // skip
+        }
+    }
+
+
+
     public function testGetKeys() {
         $name = uniqid();
         Cloud::define($name, function($params, $user) {
@@ -53,6 +84,27 @@ public function testFunctionAcceptMeta() {
         $this->assertEquals("10.0.0.1", $result);
     }
 
+    public function testRemoteFunction() {
+        // Assumes [LeanFunction] is deployed at this application's LeanEngine.
+        // [LeanFunction]: https://github.com/leancloud/LeanFunction
+        $response = Cloud::runRemote("hello", []);
+        $result = $response["result"];
+        $this->assertEquals("Hello world!", $result);
+    }
+
+    public function testRemoteFunctionWithSession() {
+        // See testRemoteFunction for dependencies.
+        try {
+            User::logIn("alice", "blabla");
+        } catch (\LeanCloud\CloudException $e) {
+            // skip
+        }
+        $token = User::getCurrentSessionToken();
+        $response = Cloud::runRemote("echo-session-token", [], $token);
+        $result = $response["result"];
+        $this->assertEquals($token, $result);
+    }
+
     public function testClassHook() {
         forEach(array("beforeSave", "afterSave",
                       "beforeUpdate", "afterUpdate",
diff --git a/test/FileTest.php b/test/FileTest.php
index ba12cbf..5206298 100644
--- a/test/FileTest.php
+++ b/test/FileTest.php
@@ -11,7 +11,6 @@ public static function setUpBeforeClass() {
             getenv("LEANCLOUD_APP_ID"),
             getenv("LEANCLOUD_APP_KEY"),
             getenv("LEANCLOUD_APP_MASTER_KEY"));
-
     }
 
     public function testInitializeEmptyFileName() {