Ability to use whitelist for testing code style, based on const defined in phpunit xml config file

Author: adrian-martinez-interactiv4

dev/tests/static/phpunit-all.xml.dist

@@ -19,5 +19,7 @@
     </testsuites>
     <php>
         <ini name="date.timezone" value="America/Los_Angeles"/>
+        <!-- TESTCODESTYLE_IS_FULL_SCAN - specify if full scan should be performed for test code style test -->
+        <const name="TESTCODESTYLE_IS_FULL_SCAN" value="1"/>
     </php>
 </phpunit>

dev/tests/static/phpunit.xml.dist

@@ -29,6 +29,8 @@
     </testsuites>
     <php>
         <ini name="date.timezone" value="America/Los_Angeles"/>
+        <!-- TESTCODESTYLE_IS_FULL_SCAN - specify if full scan should be performed for test code style test -->
+        <const name="TESTCODESTYLE_IS_FULL_SCAN" value="1"/>
         <!-- TESTS_COMPOSER_PATH - specify the path to composer binary, if a relative reference cannot be resolved -->
         <!--<const name="TESTS_COMPOSER_PATH" value="/usr/local/bin/composer"/>-->
     </php>

dev/tests/static/testsuite/Magento/Test/Php/LiveCodeTest.php

@@ -201,11 +201,14 @@ private function getFullWhitelist()
 
     public function testCodeStyle()
     {
+        $whiteList = defined('TESTCODESTYLE_IS_FULL_SCAN') && TESTCODESTYLE_IS_FULL_SCAN === '1'
+            ? $this->getFullWhitelist() : self::getWhitelist(['php', 'phtml']);
+
         $reportFile = self::$reportDir . '/phpcs_report.txt';
         $codeSniffer = new CodeSniffer('Magento', $reportFile, new Wrapper());
         $this->assertEquals(
             0,
-            $result = $codeSniffer->run($this->getFullWhitelist()),
+            $result = $codeSniffer->run($whiteList),
             "PHP Code Sniffer detected {$result} violation(s): " . PHP_EOL . file_get_contents($reportFile)
         );
     }