Question about code coverage: I have it running, but the result is 0% coverage every single time - it says that none of my tests have run which is very annoying ofcourse. Anyone know if there is a common config mistake I made?

Below is my phpunit.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
         backupStaticAttributes="false"
         bootstrap="bootstrap/autoload.php"
         colors="true"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         processIsolation="false"
         stopOnFailure="false"
         syntaxCheck="false"
         strict="true"
         verbose="true">
    <testsuites>
        <testsuite name="RetailBarometer">
            <directory suffix="Test.php">app/tests</directory>
        </testsuite>
    </testsuites>

    <logging>
        <log type="coverage-html" target="build/coverage" title="Retail Barometer Code Coverage Results"
             charset="UTF-8" yui="true" highlight="true"
             lowUpperBound="35" highLowerBound="70"/>
        <log type="coverage-clover" target="build/logs/clover.xml"/>
        <log type="junit" target="build/logs/junit.xml" logIncompleteSkipped="false"/>
    </logging>

    <filter>
        <whitelist addUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">./app/controllers</directory>
            <directory suffix=".php">./app/models</directory>
            <directory suffix=".php">./app/presenters</directory>
            <directory suffix=".php">./app/repositories</directory>
            <directory suffix=".php">./app/services</directory>
        </whitelist>
    </filter>
</phpunit>