phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>
<phpunit bootstrap="./vendor/autoload.php"
         colors="true"
         processIsolation="false"
         stopOnFailure="false"
         syntaxCheck="false"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         beStrictAboutTestsThatDoNotTestAnything="true">

    <testsuites>
        <testsuite name="all">
            <directory>tests</directory>
        </testsuite>
    </testsuites>

    <logging>
        <log type="coverage-html" target="build/report" lowUpperBound="35" highLowerBound="70"/>
        <log type="coverage-clover" target="build/coverage.xml"/>
    </logging>

    <filter>
        <whitelist>
            <directory suffix=".php">./lib</directory>
        </whitelist>
    </filter>
</phpunit>