JUnit - Environment settings

Junit - Environment settings

Local environment settings

JUnit is a framework for Java, so the most fundamental need is to have JDK installed in your machine.

System requirements

Step 1: Verify the Java appliance in your machine

Now open the console and perform the following java requirements.

Let's verify the output of all operating systems:

If you haven't installed Java yet, install the Java SDK http://www.oracle.com/technetwork/java/javase/downloads/index.html at the following URL. We use Java 1.6.0-21 as the installed version of this tutorial.

Step 2: Set up the JAVA environment

Set JAVA_HOME environment variable to point to the base directory location, where Java is installed on your machine.

The system path adds the Java compiler location.

Use the Java-version command explained above to verify the Java installation.

Step 3: Download the Junit archive

Download the http://www.junit.org version of JUnit's compressed file from the computer. While writing this tutorial, I've downloaded Junit-4.10 .jar and copied it to the C:;JUnit folder.

Step 4: Set up the JUnit environment

Set JAVA_HOME environment variable to point to the base directory location, where junIT compressed files are installed on your machine. Suppose we have stored junit4.10 files in the JUNIT folders of the following .jar.

Step 5: Set the CLASSPATH variable

Set the CLASSPATH environment variable to point to the JUNIT compressed file location. Suppose we have stored junit4.10 in the JUNIT folders of the following .jar.

Step 6: Test JUnit build

In C: Create a JUNIT_WORKSPACE file named TestJunit in this file.

import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class TestJunit {
   @Test
   public void testAdd() {
      String str= "Junit is working fine";
      assertEquals("Junit is working fine",str);
   }
}

In C: The JUNIT_WORKSPACE java class file, named TestRunner, to execute the test case.

import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;

public class TestRunner {
   public static void main(String[] args) {
      Result result = JUnitCore.runClasses(TestJunit.class);
      for (Failure failure : result.getFailures()) {
         System.out.println(failure.toString());
      }
      System.out.println(result.wasSuccessful());
   }
}   

Step 7: Verify the results

Use the javac compiler to write classes as follows.

C:\JUNIT_WORKSPACE>javac TestJunit.java TestRunner.java

Now run Test Runner to see the results.

C:\JUNIT_WORKSPACE>java TestRunner

Verify the output.

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