phpunit.xml

<phpunit
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/6.3/phpunit.xsd"
        backupGlobals="true"
        backupStaticAttributes="false"
        cacheTokens="false"
        colors="true"
        convertErrorsToExceptions="true"
        convertNoticesToExceptions="true"
        convertWarningsToExceptions="true"
        forceCoversAnnotation="false"
        processIsolation="false"
        stopOnError="false"
        stopOnFailure="false"
        stopOnIncomplete="false"
        stopOnSkipped="false"
        stopOnRisky="false"
        timeoutForSmallTests="1"
        timeoutForMediumTests="10"
        timeoutForLargeTests="60"
        verbose="false">

    <testsuites>
        <testsuite name="Unit Tests">
            <directory>./tests</directory>
        </testsuite>
    </testsuites>

    <filter>
        <whitelist processUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">./src</directory>
        </whitelist>
    </filter>
</phpunit>