@Test public void deleteTriangleTest() {


   Triangle[] tArray = new Triangle[20];
   tArray[0] = new Triangle(3, 4, 5);
   tArray[1] = new Triangle(3, 5, 5);
   tArray[2] = new Triangle(3, 3, 3);
   
   TriangleList2 tList = new TriangleList2("Test List", tArray, 3);
   
   Triangle t = new Triangle(3, 5, 5);
   Triangle[] tA = tList.getList();
   Assert.assertEquals("pre deleteTriangle Test",
                        t, tA[1]);
      

   Assert.assertTrue("deleteTriangle true Test",
                        tList.deleteTriangle(3, 4, 5));

   Assert.assertEquals("deleteTriangle true Test",
                        t, tA[0]);

   Assert.assertFalse("deleteTriangle false Test",
                        tList.deleteTriangle(9, 9, 9));
}