Running a single test in maven -> No tests were executed

When I run a single test in Maven with this command:

mvn test -Dtest=InitiateTest

I'm getting the following result:

No tests were executed!

It worked a couple of minutes ago, but now it stopped working for some reason. I tried running mvn clean a couple of times before running the test, it doesn't help.

The test looks like this:

import org.openqa.selenium.*;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.Select;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class InitiateTest {

    public static FirefoxDriver driver;

    @Before
        public void setUp() throws Exception {
            driver = new FirefoxDriver();
    }

    @Test
    public void initiateTest() throws Exception {
            driver.get("http://localhost:8080/login.jsp");
            ...
    }

    @After
    public void tearDown() throws Exception {
        driver.close();
    }
}

UPDATE:

It's caused by adding this dependency to POM:

<dependency>
   <groupId>org.seleniumhq.selenium</groupId>
   <artifactId>selenium</artifactId>
   <version>2.0b1</version>
   <scope>test</scope>
</dependency>

When I remove it, everything works fine. Everything works fine even when I add these two dependencies instead of the previous one:

<dependency>
   <groupId>org.seleniumhq.selenium</groupId>
   <artifactId>selenium-support</artifactId>
   <version>2.0b1</version>
   <scope>test</scope>
</dependency>
<dependency>
   <groupId>org.seleniumhq.selenium</groupId>
   <artifactId>selenium-firefox-driver</artifactId>
   <version>2.0b1</version>
   <scope>test</scope>
</dependency>

This is weird.

You are probably picking up JUnit3 on your classpath somewhere, which effectively disables JUnit4.

Run mvn dependency:tree to find out where it's coming in from and add exclude if from the dependency.