Howto have maven surefire execute JUnit and TestNG test properly?

[admin]

Since a while it is possible to configure maven surefire to execute jUnit tests and testNG tests in one build. I won't expand on the reasons why I'm doing that (ok, hint: testNG is our standard framework but some frameworks like <a href="http://jnario.org/" rel="noreferrer">jnario</a> require jUnit).

The general way to do it is to configure the surefire plugin like this:

<pre class="lang-xml prettyprint-override">

<plugin>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>${surefire.version}</version>
    <dependencies>
        <dependency>
            <groupId>org.apache.maven.surefire</groupId>
            <artifactId>surefire-junit47</artifactId>
            <version>${surefire.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.maven.surefire</groupId>
            <artifactId>surefire-testng</artifactId>
            <version>${surefire.version}</version>
        </dependency>
    </dependencies>
</plugin>

<a href="http://solidsoft.wordpress.com/2013...junit-tests-in-one-maven-module-2013-edition/" rel="noreferrer">(taken from here)</a>

This works quite well, jUnit tests and testNG tests get executed.

BUT - now I see that testNG tries to execute the jUnit tests too (and maybe vice-versa) - with no success, of course, because it won't see any of its annotations, but it looks like it re-marks the tests to "passed"... anyway, some reporting tools don't show test fails in jUnit tests anymore unless I comment the second dependency entry.

Is there any better way to configure surefire so that tests from both frameworks are executed ONLY by their test runners?