Cannot run a simple maven test with TestNG

Question

I have written a simple maven project and placed a Testng file in it . The testNG code is

package dataCollection;

import org.testng.annotations.Test;

public class Hello {
    @Test
    public void hello(){
        System.out.println("hello world");
    }

}

My project structure is as shown below

When i run it by mvn test the build is success but i cannot see console output. I get the following output-:

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building dataCollection 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ dataCollection ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ dataCollection ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent!
[INFO] Compiling 1 source file to E:\Sandeep\EclipseWorkspace\dataCollection\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ dataCollection ---
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ dataCollection ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ dataCollection ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.769 s
[INFO] Finished at: 2017-03-12T18:57:06+05:30
[INFO] Final Memory: 11M/28M
[INFO] ------------------------------------------------------------------------
 

Answer 1

It looks like, you are running your code using POM.xml file.

If so, you will need to map pom file to use TestNG.xml file using maven-surefire-plugin.

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.19.1</version>
                <configuration>
                    <suiteXmlFiles>
                        <suiteXmlFile>testng.xml</suiteXmlFile>
                    </suiteXmlFiles>
                </configuration>
            </plugin>

 

Sample testng.xml file.

 

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="HW Tests">
  <test name="test1" >
    <classes>
      <class name="dataCollection.Hello" />
    </classes>
  </test>
</suite>