private Messages() {
    super( BUNDLE_NAME );
  }
@Test
  public void testMessages() {

    assertEquals( "Wrong message returned", "test message 1", Messages.getInstance().getString( "test.MESSAGE1" ) ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    assertEquals(
        "Wrong message returned", "test message 2: A", Messages.getInstance().getString( "test.MESSAGE2", "A" ) ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
    assertEquals(
        "Wrong message returned", "test message 3: A B", Messages.getInstance().getString( "test.MESSAGE3", "A", "B" ) ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
    assertEquals(
        "Wrong message returned", "test message 4: A B C", Messages.getInstance().getString( "test.MESSAGE4", "A", "B", "C" ) ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
    assertEquals(
        "Wrong message returned", "test message 5: A B C D", Messages.getInstance().getString( "test.MESSAGE5", "A", "B", "C", "D" ) ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$

  }