Test phpunit config

Author: vudaltsov

Diff for: phpunit.xml.dist

@@ -14,6 +14,9 @@
         <testsuite name="Symfony Polyfill Test Suite">
             <directory>./tests/</directory>
         </testsuite>
+        <testsuite name="Symfony Intl Test Suite">
+            <directory>./tests/Intl/</directory>
+        </testsuite>
     </testsuites>
 
     <filter>

Diff for: src/Util/TestListenerTrait.php

@@ -25,7 +25,6 @@ public function startTestSuite($mainSuite)
         }
         self::$enabledPolyfills = false;
         $SkippedTestError = class_exists('PHPUnit\Framework\SkippedTestError') ? 'PHPUnit\Framework\SkippedTestError' : 'PHPUnit_Framework_SkippedTestError';
-        $warnings = array();
 
         foreach ($mainSuite->tests() as $suite) {
             $testClass = $suite->getName();
@@ -41,6 +40,7 @@ public function startTestSuite($mainSuite)
             }
             $testedClass = new \ReflectionClass($m[1].$m[2]);
             $bootstrap = new \SplFileObject(\dirname($testedClass->getFileName()).'/bootstrap.php');
+            $warnings = array();
             $defLine = null;
 
             foreach (new \RegexIterator($bootstrap, '/define\(\'/') as $defLine) {
@@ -109,8 +109,10 @@ function {$f['name']}{$f['signature']}
                 $mainSuite->addTest(new TestListener($suite));
             }
         }
-        foreach ($warnings as $w) {
-            $mainSuite->addTest($w);
+        if (isset($warnings)) {
+            foreach ($warnings as $w) {
+                $mainSuite->addTest($w);
+            }
         }
     }