Update phpunit.xml

Author: mpyw

phpunit.xml

@@ -1,13 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit bootstrap="vendor/autoload.php">
+<phpunit backupGlobals="false"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         cacheDirectory=".phpunit.cache"
+         backupStaticProperties="false">
+
+    <source>
+        <include>
+            <directory>./src</directory>
+        </include>
+    </source>
+
+    <coverage/>
+
     <testsuites>
         <testsuite name="Package Test Suite">
-            <directory suffix="Test.php">./tests/</directory>
+            <directory suffix="Test.php">./tests</directory>
         </testsuite>
     </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">src</directory>
-        </whitelist>
-    </filter>
 </phpunit>