Maven is a great tool for project dependency and build management. It can be used for running the Junit testcases for the project. In this post, I will show some simple but useful command examples to run testcases in various ways.
For demonstration, I have created a maven java project using following command:
mvn archetype:generate -DgroupId=com.howtodoinjava.junit -DartifactId=mavenJunitDemo -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
And then I created a test class as below in test folder.
package com.howtodoinjava.junit;
import org.junit.Test;
public class TestSurefire {
@Test
public void testcaseFirst()
{
System.out.println("First testcase executed");
}
@Test
public void testcaseSecond()
{
System.out.println("Second testcase executed");
}
@Test
public void testcaseThird()
{
System.out.println("Third testcase executed");
}
@Test
public void otherTestcase()
{
System.out.println("Another testcase executed");
}
}
Lets examine maven test command and see their outputs:
1) Run all testcases with command “mvn test” : This command run all testcases present inside test folder irrespective of any other criteria.
------------------------------------------------------- T E S T S ------------------------------------------------------- Running com.howtodoinjava.junit.AppTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.023 sec Running com.howtodoinjava.junit.TestSurefire Another testcase executed First testcase executed Third testcase executed Second testcase executed Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.02 sec Results : Tests run: 5, Failures: 0, Errors: 0, Skipped: 0
2) Execute a particular test class only with “-Dtest=TestSurefire test” : This will execute all testcases inside test class TestSurefire.
------------------------------------------------------- T E S T S ------------------------------------------------------- Running com.howtodoinjava.junit.TestSurefire Another testcase executed First testcase executed Third testcase executed Second testcase executed Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.033 sec Results : Tests run: 4, Failures: 0, Errors: 0, Skipped: 0
You can use multiple test classes in command and even use wild cards in test class names to match a set of test classes. e.g. mvn -Dtest=TestSurefire,TestOth*Class test
3) Test only a certain testcase inside test class with “mvn -Dtest=TestSurefire#testcaseFirst test“: This command will execute only single test case method i.e. testcaseFirst().
------------------------------------------------------- T E S T S ------------------------------------------------------- Running com.howtodoinjava.junit.TestSurefire First testcase executed Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.034 sec Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
4) Test multiple test cases with wild card mapping e.g. “mvn -Dtest=TestSurefire#testcase* test“: This will help to run multiple testcases with similar names in one simple short command.
------------------------------------------------------- T E S T S ------------------------------------------------------- Running com.howtodoinjava.junit.TestSurefire First testcase executed Second testcase executed Third testcase executed Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.034 sec Results : Tests run: 3, Failures: 0, Errors: 0, Skipped: 0
Drop me a comment is something is not clear or i am missing anything.
Happy Learning !!