phpunit.xml

<phpunit
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.5/phpunit.xsd"
    bootstrap="bootstrap.php">
    <testsuites>
        <testsuite name="Default Suite">
          <directory>tests</directory>
        </testsuite>
    </testsuites>
    <filter>
        <whitelist processUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">./src</directory>
        </whitelist>
    </filter>
    <logging>
        <log type="coverage-html" target="test-reports/html" lowUpperBound="35"
             highLowerBound="70"/>
        <log type="coverage-clover" target="test-reports/coverage.xml"/>
        <log type="coverage-php" target="test-reports/coverage.serialized"/>
        <log type="coverage-text" target="test-reports/coverage.txt" showUncoveredFiles="false"/>
        <log type="junit" target="test-reports/logfile.xml"/>
        <log type="testdox-html" target="test-reports/testdox.html"/>
        <log type="testdox-text" target="test-reports/testdox.txt"/>
    </logging>
</phpunit>