Global PHPunit no tests executed

I have following phpunit.xml file:

<phpunit bootstrap="Bootstrap.php" backupGlobals="false">
    <testsuites>
        <testsuite name="mentor">
            <directory>../module/Api</directory>
            <directory>../module/Application</directory>
            <exclude>../vendor</exclude>
          <exclude>vendor</exclude>
        </testsuite>
    </testsuites>
    <filter>
        <whitelist>
            <directory suffix=".php">../module</directory>
        </whitelist>
    </filter>
</phpunit>

file structure looks like this:

module
vendor
tests
-- phpunit.xml
-- Bootstrap.php

And now the tricky part. When I ran ../vendor/bin/php all works fine although if I ran global phpunit (/usr/local/bin/phpunit) it finishes with "no test executed" result. Any suggestions?