Hide maven "Running com.MyTest" log line

Question

I get the following in my mvn output:

Running com.MyTest
Tests run: 1 , Failures: 0 , Errors: 0 , Skipped: 0 , Time elapsed: 0.02 sec - in com.MyTest

despite having the flags:

-Dsurefire.printSummary=false -Dsurefire.useFile=true

Is there a way to hide the first line - Running com.MyTest?

More information

It should be irrelevant, but I also add this:

-Dlogback.configurationFile=/Users/me/logback.xml

with the logback.xml containing:

<configuration>
  <root level="OFF">
    <appender-ref ref="STDOUT" />
  </root>
</configuration>

pom.xml surefire configuration

<project>
  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>${maven.surefire.plugin}</version>
        </plugin>
      </plugins>
    </pluginManagement>

    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>${maven.surefire.plugin}</version>
        <configuration>
          <includes>
            <include>**/*Test.class</include>
          </includes>
          <parallel>classes</parallel>
          <threadCount>10</threadCount>
          <useFile>false</useFile>
        </configuration>
      </plugin>

    </plugins>
  </build>

  <profiles>
    <profile>
      <id>coverage-per-test</id>
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.15</version>
            <configuration>
              <properties>
                <property>
                  <name>listener</name>
                  <value>org.sonar.java.jacoco.JUnitListener</value>
                </property>
              </properties>
            </configuration>
          </plugin>
        </plugins>
      </build>
    </profile>
  </profiles>
</project>

Answer 1

For this particular line not to be shown, it is necessary that no console logger should be created. The code is creating this logger when the following method returns true:

private boolean shouldReportToConsole()
{
    return isUseFile() ? isPrintSummary() : isRedirectTestOutputToFile() || isBriefOrPlainFormat();
}

Further down the line, if this returns true, an instance of ConsoleReporter is created and it will write that line when the tests are started.

So either:

• you set useFile=true (the default) and printSummary=false, or
• you set useFile=false and redirectTestOutputToFile=false (the default) and reportFormat to a value that isn't "brief" or "plain" (by default, it is "brief").

As such, with your configuration of -Dsurefire.printSummary=false -Dsurefire.useFile=true, it should work, and that line should not be in the console, nor should it be in the output file. Your problem is that the configuration of the maven-surefire-plugin sets <useFile>false</useFile>. Any value configured in the POM takes direct predence over what you set on the command-line. This is to make sure that when the POM defines a value, it cannot be overriden and helps to have reproducible builds.

So what you could do instead is force an incorrect value for the reportFormat (which would be neither "brief" nor "plain"), and you'll notice the "Running " line won't be emitted any longer.

That is a bit clunky though. So another solution would be to define a Maven property and override that property on the command-line. In your plugin, have:

<useFile>${surefire.plugin.useFile}</useFile>

and define a property, which defaults to false:

<properties>
  <surefire.plugin.useFile>false</surefire.plugin.useFile>
</properties>

This way, the build behave the same as before. And when you define -Dsurefire.plugin.useFile=true, you'll override the Maven property and this will make sure Surefire boots with useFile set to true.