test: update phpunit.xml

Author: adhocore

phpunit.xml

@@ -1,13 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit colors="true" bootstrap="./tests/bootstrap.php">
-    <testsuites>
-        <testsuite name="HTMLUp Test Suite">
-            <directory>./tests</directory>
-        </testsuite>
-    </testsuites>
-        <filter>
-        <whitelist>
-            <directory suffix=".php">src</directory>
-        </whitelist>
-    </filter>
+
+<phpunit backupGlobals="false"
+  backupStaticAttributes="false"
+  colors="true"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  processIsolation="false"
+  stopOnFailure="false"
+  syntaxCheck="false"
+  bootstrap="tests/bootstrap.php"
+>
+  <testsuites>
+    <testsuite name="Htmlup Test Suite">
+      <directory>./tests/</directory>
+    </testsuite>
+  </testsuites>
+  <filter>
+  <whitelist processUncoveredFilesFromWhitelist="true">
+    <directory suffix=".php">./src</directory>
+  </whitelist>
+</filter>
 </phpunit>