MC-17868: Break jQuery UI into widgets and make a prototype

- Add static tests for js, php, phtml files;

Author: adifucan

dev/tests/static/testsuite/Magento/Test/Legacy/ObsoleteCodeTest.php

@@ -127,6 +127,7 @@ function ($file) {
                 $this->_testObsoleteActions($content);
                 $this->_testObsoleteConstants($content);
                 $this->_testObsoletePropertySkipCalculate($content);
+                $this->_testJqueryUiLibraryIsNotUsedInPhp($content);
             },
             $changedFiles
         );
@@ -184,6 +185,11 @@ public function testJsFiles()
             function ($file) {
                 $content = file_get_contents($file);
                 $this->_testObsoletePropertySkipCalculate($content);
+                if (!strpos($file, 'requirejs-config.js')
+                    && (strpos($file, '/view/frontend/web/') || strpos($file, '/view/base/web/'))
+                ) {
+                    $this->_testJqueryUiLibraryIsNotUsedInJs($content);
+                }
             },
             Files::init()->getJsFiles()
         );
@@ -947,4 +953,32 @@ private function getBlacklistFiles($absolutePath = false)
         }
         return $ignored;
     }
+
+    /**
+     * Assert that jquery/ui library is not used in JS content.
+     *
+     * @param string $fileContent
+     */
+    private function _testJqueryUiLibraryIsNotUsedInJs($fileContent)
+    {
+        $this->_assertNotRegexp(
+            '/(["\'])jquery\/ui\1/',
+            $fileContent,
+            $this->_suggestReplacement(sprintf("Dependency '%s' is redundant.", 'jquery/ui'), 'Use separate jquery ui widget instead of all library.')
+        );
+    }
+
+    /**
+     * Assert that jquery/ui library is not used in PHP content.
+     *
+     * @param string $fileContent
+     */
+    private function _testJqueryUiLibraryIsNotUsedInPhp($fileContent)
+    {
+        $this->_assertNotRegExp(
+            '/(["\'])jquery\/ui\1/',
+            $fileContent,
+            $this->_suggestReplacement(sprintf("Dependency '%s' is redundant.", 'jquery/ui'), 'Use separate jquery ui widget instead of all library.')
+        );
+    }
 }

dev/tests/static/testsuite/Magento/Test/Legacy/PhtmlTemplateTest.php

@@ -77,4 +77,27 @@ function ($file) {
             \Magento\Framework\App\Utility\Files::init()->getPhtmlFiles()
         );
     }
+
+    public function testJqueryUiLibraryIsNotUsedInTemplates()
+    {
+        $invoker = new \Magento\Framework\App\Utility\AggregateInvoker($this);
+        $invoker(
+        /**
+         * 'jquery/ui' library is not obligatory to use in phtml files.
+         * It's better to use needed jquery ui widget instead.
+         *
+         * @param string $file
+         */
+            function ($file) {
+                if (strpos($file, '/view/frontend/templates/') || strpos($file, '/view/base/templates/')) {
+                    $this->assertNotRegexp(
+                        '/(["\'])jquery\/ui\1/',
+                        file_get_contents($file),
+                        'Please do not use "jquery/ui" library in templates. Use needed jquery ui widget instead.'
+                    );
+                }
+            },
+            \Magento\Framework\App\Utility\Files::init()->getPhtmlFiles()
+        );
+    }
 }