@Ignore_JUnit - Ignore Test

@Ignore 用法很简单, 如果你的测试用例还没有准备好而不想被执行, 又不想删掉或注释掉, 可以使用 @Ignore 标注来忽略测试。

• 方法一旦用 @Ignore 注解了将不会被执行.
• 如果一个类用 @Ignore 注解了 他下面的所有测试方法将不会被执行.

看个应用

Create a Class

• Create a java class to be tested say MessageUtil.java in C:\ > JUNIT_WORKSPACE

/*
* This class prints the given message on console.
*/
public class MessageUtil {

   private String message;

   //Constructor
   //@param message to be printed
   public MessageUtil(String message){
      this.message = message;
   }

   // prints the message
   public String printMessage(){
      System.out.println(message);
      return message;
   }   

   // add "Hi!" to the message
   public String salutationMessage(){
      message = "Hi!" + message;
      System.out.println(message);
      return message;
   }
}

Create Test Case Class

• Create a java test class say TestJunit.java.
• Add a test methods testPrintMessage(),testSalutationMessage() to your test class.
• Add an Annotaion @Ignore to method testPrintMessage().

Create a java class file name TestJunit.java in C:\ > JUNIT_WORKSPACE

import org.junit.Test;
import org.junit.Ignore;
import static org.junit.Assert.assertEquals;

public class TestJunit {

   String message = "Robert";
   MessageUtil messageUtil = new MessageUtil(message);

   @Ignore
   @Test
   public void testPrintMessage() {
      System.out.println("Inside testPrintMessage()");
      message = "Robert";
      assertEquals(message,messageUtil.printMessage());
   }

   @Test
   public void testSalutationMessage() {
      System.out.println("Inside testSalutationMessage()");
      message = "Hi!" + "Robert";
      assertEquals(message,messageUtil.salutationMessage());
   }
}

Create Test Runner Class

Create a java class file name TestRunner.java in C:\ > JUNIT_WORKSPACE to execute Test case(s)

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());
   }
}

Compile the MessageUtil, Test case and Test Runner classes using javac

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

Now run the Test Runner which will not run testPrintMessage() test case defined in provided Test Case class.

C:\JUNIT_WORKSPACE>java TestRunner

Verify the output. testPrintMessage() test case is not tested.

Inside testSalutationMessage()
Hi!Robert
true

Now update TestJunit in C:\ > JUNIT_WORKSPACE to ignore all test cases. Add @Ignore at class level

import org.junit.Test;
import org.junit.Ignore;
import static org.junit.Assert.assertEquals;

@Ignore
public class TestJunit {

   String message = "Robert";
   MessageUtil messageUtil = new MessageUtil(message);

   @Test
   public void testPrintMessage() {
      System.out.println("Inside testPrintMessage()");
      message = "Robert";
      assertEquals(message,messageUtil.printMessage());
   }

   @Test
   public void testSalutationMessage() {
      System.out.println("Inside testSalutationMessage()");
      message = "Hi!" + "Robert";
      assertEquals(message,messageUtil.salutationMessage());
   }
}

Compile the Test case using javac

C:\JUNIT_WORKSPACE>javac TestJunit.java

Keep your Test Runner unchnaged as follows

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());
   }
}

Now run the Test Runner which will not run any test case defined in provided Test Case class.

C:\JUNIT_WORKSPACE>java TestRunner

Verify the output. No test case is tested.

true