@Test
public void isATriangle_sideOneSideTwoLessThanSideThree_true() {
Triangle triangle = new Triangle(10, 10, 15);
assertEquals(true, triangle.isATriangle());
}
@Test
public void isATriangle_sideThreeSideOneGreaterThanSideTwo_false() {
Triangle triangle = new Triangle(10, 25, 10);
assertEquals(false, triangle.isATriangle());
}