<phpunit
		bootstrap="./bootstrap.php.dist"
		colors="true">
	<testsuites>
		<testsuite>
			<directory suffix="Test.php">./tests/phpunit/</directory>
		</testsuite>
	</testsuites>
</phpunit>

<phpunit
		bootstrap="./bootstrap.php.dist"
		colors="true">
	<testsuites>
		<testsuite>
			<directory suffix="Test.php">./tests/phpunit/</directory>
		</testsuite>
	</testsuites>
	<filter>
		<whitelist>
			<file>./wp-async-task.php</file>
		</whitelist>
	</filter>
</phpunit>

Add a filter block in the phpunit config file
Add a filter block in the phpunit config file
