problem having with core java programming
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/4744146/how-to-write-test-case-in-java">how to write test case in java</a>  </p>
</blockquote>



<p>hi
I am facing the problem with writing test case for following method:</p>

<pre><code>public class ABC{
public void updateUser(String emailId, HashMap hm) {
        String updateKey = createUniqueUserKey(emailId);
        int noOfColumn = (UserColumnFamily.getColumnNames()).size();
</code></pre>
