fix: Undefined array key "result" parse-community#518

Author: ajmeese7

Diff for: src/Parse/ParseCloud.php

@@ -13,6 +13,37 @@
  */
 class ParseCloud
 {
+    protected static $requestCallable;
+
+    /**
+     * Sets a callable to be used for making requests.
+     *
+     * This method allows injection of a mockable callable for testing purposes.
+     *
+     * @param callable $callable The callable to use for requests.
+     */
+    public static function setRequestCallable(callable $callable)
+    {
+        self::$requestCallable = $callable;
+    }
+
+    /**
+     * Gets the callable used for making requests.
+     *
+     * If no callable has been set, it returns the default callable that calls ParseClient::_request.
+     *
+     * @return callable The callable used for requests.
+     */
+    protected static function getRequestCallable()
+    {
+        if (!self::$requestCallable) {
+            self::$requestCallable = function($method, $path, $sessionToken = null, $data = null, $useMasterKey = false, $contentType = 'application/json', $returnHeaders = false) {
+                return ParseClient::_request($method, $path, $sessionToken, $data, $useMasterKey, $contentType, $returnHeaders);
+            };
+        }
+        return self::$requestCallable;
+    }
+
     /**
      * Makes a call to a Cloud function.
      *
@@ -28,15 +59,18 @@ public static function run($name, $data = [], $useMasterKey = false)
         if (ParseUser::getCurrentUser()) {
             $sessionToken = ParseUser::getCurrentUser()->getSessionToken();
         }
-        $response = ParseClient::_request(
+
+        $response = call_user_func(
+            self::getRequestCallable(),
             'POST',
             'functions/'.$name,
             $sessionToken,
             json_encode(ParseClient::_encode($data, false)),
             $useMasterKey
         );
 
-        return ParseClient::_decode($response['result']);
+        $returnVal = isset($response['result']) ? $response['result'] : [];
+        return ParseClient::_decode($returnVal);
     }
 
     /**

Diff for: tests/Parse/ParseCloudTest.php

@@ -23,6 +23,13 @@ public function tearDown() : void
             ParseUser::logOut();
             $user->destroy(true);
         }
+
+        // Reset the callable after each test
+        ParseCloud::setRequestCallable(function($method, $path, $sessionToken = null, $data = null, $useMasterKey = false, $contentType = 'application/json', $returnHeaders = false) {
+            return \Parse\ParseClient::_request($method, $path, $sessionToken, $data, $useMasterKey, $contentType, $returnHeaders);
+        });
+
+        parent::tearDown();
     }
 
     /**
@@ -72,6 +79,55 @@ public function testFunctionCallException()
         ]);
     }
 
+    /**
+     * @group cloud-code
+     */
+    public function testFunctionCallWithNullParams()
+    {
+        $this->expectException(
+            'Parse\ParseException',
+            'bad stuff happened'
+        );
+        $response = ParseCloud::run('bar', null);
+    }
+
+    /**
+     * @group cloud-code
+     */
+    public function testFunctionCallWithEmptyParams() {
+        $this->expectException(
+            'Parse\ParseException',
+            'bad stuff happened'
+        );
+        $response = ParseCloud::run('bar', []);
+    }
+
+    /**
+     * @group cloud-code
+     */
+    public function testFunctionCallWithoutResultKey()
+    {
+        // Mock the _request method to return a response without the 'result' key
+        $mockResponse = [];
+        $mockCallable = $this->getMockBuilder(\stdClass::class)
+            ->addMethods(['__invoke'])
+            ->getMock();
+        $mockCallable->expects($this->once())
+            ->method('__invoke')
+            ->willReturn($mockResponse);
+
+        // Set the mock callable in ParseCloud
+        ParseCloud::setRequestCallable($mockCallable);
+
+        $response = ParseCloud::run('bar', [
+            'key1' => 'value2',
+            'key2' => 'value1'
+        ]);
+
+        // Since 'result' key is missing, the default value is returned
+        $this->assertEquals([], $response);
+    }
+
     /**
      * @group cloud-code
      */