phpunit.xml
<?xml version="1.0" encoding="UTF-8"?>
<phpunit bootstrap="vendor/autoload.php" colors="true">
<testsuites>
<testsuite name="Text Transformer Test Suite">
<directory>./tests/TextTransformer/</directory>
</testsuite>
</testsuites>
<filter>
<whitelist>
<directory suffix=".php">./src/TextTransformer/</directory>
</whitelist>
</filter>
</phpunit>