enable whitelist

phpunit.xml

@@ -1,5 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit>
 	<filter>
+		<whitelist>
+			<directory suffix=".php">./Plugin/Tools</directory>
+			<exclude>
+				<directory suffix=".php">./Plugin/Tools/Vendor</directory>
+				<directory suffix=".php">./Plugin/Tools/Config/Schema</directory>
+				<directory suffix=".php">./Plugin/Tools/Test</directory>
+				<directory suffix=".php">./Plugin/Tools/TestSuite</directory>
+				<directory suffix=".php">./Plugin/Tools/Lib/Error</directory>
+			</exclude>
+		</whitelist>
 	</filter>
 </phpunit>