Fatal error: Uncaught Error: Class 'Magento\Catalog\Block\Product\View\Attribute\AbstractAttributeTest' not found in /home/esecureh/public_html/magdemo/dev/tests/integration/testsuite/Magento/Swatches/Block/Product/View/Attribute/VisualSwatchAttributeTest.php:20 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/integration/testsuite/Magento/Swatches/Block/Product/View/Attribute/VisualSwatchAttributeTest.php on line 20