phpunit.xml

<phpunit bootstrap="./vendor/autoload.php">
	<testsuites>
		<testsuite name="All tests">
			<directory>./tests/</directory>
		</testsuite>
	</testsuites>
	<filter>
        <whitelist processUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">src</directory>
        </whitelist>
    </filter>
</phpunit>