phpunit.xml
<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
backupStaticAttributes="false"
colors="true"
convertErrorsToExceptions="true"
convertWarningsToExceptions="true"
convertNoticesToExceptions="true"
processIsolation="false"
stopOnFailure="false"
bootstrap="vendor/autoload.php">
<testsuite name="PerformanceTimer">
<directory>tests</directory>
</testsuite>
<filter>
<whitelist>
<directory>src</directory>
</whitelist>
</filter>
</phpunit>