Telling phpunit what files to parse for coverage and where to store t…

…he coverage report as well as the coverage report format

phpunit.xml

@@ -1,14 +1,29 @@
 <phpunit
     bootstrap="tests/bootstrap.php"
-	backupGlobals="false"
-	colors="true"
-	convertErrorsToExceptions="true"
-	convertNoticesToExceptions="true"
-	convertWarningsToExceptions="true"
-	>
-	<testsuites>
-		<testsuite>
-			<directory prefix="test-" suffix=".php">./tests/</directory>
-		</testsuite>
-	</testsuites>
+    backupGlobals="false"
+    colors="true"
+    convertErrorsToExceptions="true"
+    convertNoticesToExceptions="true"
+    convertWarningsToExceptions="true"
+    >
+    <testsuites>
+        <testsuite>
+            <directory prefix="test-" suffix=".php">./tests/</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">lib/</directory>
+        </whitelist>
+    </filter>
+    <logging>
+        <log
+            type="coverage-html"
+            target="coverage"
+            charset="UTF-8"
+            highlight="false"
+            lowUpperBound="35"
+            highLowerBound="70"
+        />
+    </logging>
 </phpunit>