diff --git a/tests/unit/Espo/Core/ControllerManagerTest.php b/tests/unit/Espo/Core/ControllerManagerTest.php
new file mode 100644
index 0000000000..8734b408e9
--- /dev/null
+++ b/tests/unit/Espo/Core/ControllerManagerTest.php
@@ -0,0 +1,82 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2020 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace tests\unit\Espo\Core;
+
+use Espo\Core\{
+    Utils\ClassFinder,
+    InjectableFactory,
+    ControllerManager,
+    Api\RequestWrapper,
+    Api\ResponseWrapper,
+};
+
+use tests\unit\testClasses\Controllers\TestController;
+
+class ControllerManagerTest extends \PHPUnit\Framework\TestCase
+{
+    protected function setUp() : void
+    {
+        $this->classFinder = $this->getMockBuilder(ClassFinder::class)->disableOriginalConstructor()->getMock();
+        $this->injectableFactory = $this->getMockBuilder(InjectableFactory::class)->disableOriginalConstructor()->getMock();
+        $this->request = $this->getMockBuilder(RequestWrapper::class)->disableOriginalConstructor()->getMock();
+        $this->response = $this->getMockBuilder(ResponseWrapper::class)->disableOriginalConstructor()->getMock();
+
+        $this->controllerManager = new ControllerManager($this->injectableFactory, $this->classFinder);
+    }
+
+    public function testAction1()
+    {
+        $controller = $this->getMockBuilder(TestController::class)->disableOriginalConstructor()->getMock();
+
+        $this->classFinder
+            ->expects($this->once())
+            ->method('find')
+            ->with('Controllers', 'Test')
+            ->willReturn(TestController::class);
+
+        $this->request
+            ->expects($this->once())
+            ->method('getMethod')
+            ->willReturn('POST');
+
+        $this->injectableFactory
+            ->expects($this->once())
+            ->method('createWith')
+            ->with(TestController::class, ['name' => 'Test'])
+            ->willReturn($controller);
+
+        $controller
+            ->expects($this->once())
+            ->method('postActionHello')
+            ->with($this->request, $this->response);
+
+        $this->controllerManager->process('Test', 'hello', $this->request, $this->response);
+    }
+}
diff --git a/tests/unit/testClasses/Controllers/TestController.php b/tests/unit/testClasses/Controllers/TestController.php
new file mode 100644
index 0000000000..2beb657a1b
--- /dev/null
+++ b/tests/unit/testClasses/Controllers/TestController.php
@@ -0,0 +1,43 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2020 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace tests\unit\testClasses\Controllers;
+
+use Espo\Core\{
+    Api\Request,
+    Api\Response,
+};
+
+class TestController
+{
+    public function postActionHello(Request $request, Response $response)
+    {
+
+    }
+}