@Test public void largestPerimeterWithSidesTest() {


   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("largestPerimeterWithSides Test",
                        "13.0 for sides 3.0, 5.0, 5.0", 
                        tList.largestPerimeterWithSides());

   TriangleList2 tList2 = new TriangleList2("Test List", null, 0);
   Assert.assertEquals("largestPerimeterWithSides Test",
                        "No triangles in list", 
                        tList2.largestPerimeterWithSides());
}