@Test public void largestPerimeterTest() {


   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);
   
   Assert.assertEquals("largestPerimeter Test",
                        13, tList.largestPerimeter(), .001);

   TriangleList2 tList2 = new TriangleList2("Test List", null, 0);
   Assert.assertEquals("largestPerimeter Test",
                        0, tList2.largestPerimeter(), .001);
}