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junit

what are the steps involved in junit to check each modules


could you explain with simple
0
Manikandan Thiagarajan
Asked:
Manikandan Thiagarajan
3 Solutions
 
fffej78Commented:
JUnit is a unit testing package.  Typically you'll want to test one class at a time.  For example lets say I have the following simple class.

public class Calculator
{
  public int add( int x, int y )
  {
    return x + y;
  }
}

If I was to write some test code for this, I'd like to verify that the add method does indeed add numbers, so I'd create a simple test class such as.

public class TestCalculator
  extends junit.framework.TestCase
{
  private Calculator _calculator;

  protected void setUp ()
  {
    _calculator = new Calculator();
  }

  public void test_add ()
  {
    assertEquals( 1, _calculator.add( 0, 1 ) );
    assertEquals( 2, _calculator.add( 1, 1 ) );
  }
}

The setup routine is used to initialise the fixture (i.e. the thing you are testing).  The methods named "test_XYZ" are called by the JUnit test running and executed.   In test_add, I'm basically just asserting that add does what it should do.  

You can read the JUnit documentation at http://junit.sourceforge.net/ to fill in anything I've missed out.
0
 
Nguyen Huu PhuocSenior ManagerCommented:
JUnit use for programmer to test their code. It is not for tester.
JUnit is just useful to test logic of your program.
0
 
Mayank SAssociate Director - Product EngineeringCommented:
Tutorial: http://supportweb.cs.bham.ac.uk/documentation/tutorials/docsystem/build/tutorials/junit/junit.html

It is integrated with IDEs like Eclipse and Netbeans so you can directly use it.
0
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