phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>

<!-- http://www.phpunit.de/manual/current/en/appendixes.configuration.html -->
<phpunit
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.1/phpunit.xsd"
    backupGlobals               = "false"
    backupStaticAttributes      = "false"
    colors                      = "false"
    convertErrorsToExceptions   = "true"
    convertNoticesToExceptions  = "true"
    convertWarningsToExceptions = "true"
    processIsolation            = "false"
    stopOnFailure               = "false"
    bootstrap                   = "vendor/autoload.php" >

    <php>
        <ini name="error_reporting" value="-1" />
    </php>

    <testsuites>
        <testsuite name="Project Test Suite">
            <directory>tests</directory>
        </testsuite>
    </testsuites>

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