Fatal error: Uncaught Error: Call to a member function testMethod() on null in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Test/Unit/TemplateEngine/_files/simple.phtml:11 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/View/Test/Unit/TemplateEngine/_files/simple.phtml on line 11