def test_union(self):
dom_a = Domain([-2, 0, 2])
dom_b = Domain([-2, -1, 1, 2])
self.assertNotEqual(dom_a.union(dom_b), dom_a)
self.assertNotEqual(dom_a.union(dom_b), dom_b)
self.assertEqual(dom_a.union(dom_b), Domain([-2, -1, 0, 1, 2]))
self.assertEqual(dom_b.union(dom_a), Domain([-2, -1, 0, 1, 2]))
def test_union(self):
dom_a = Domain([-2,0,2])
dom_b = Domain([-2,-1,1,2])
self.assertNotEqual(dom_a.union(dom_b), dom_a)
self.assertNotEqual(dom_a.union(dom_b), dom_b)
self.assertEqual(dom_a.union(dom_b), Domain([-2,-1,0,1,2]))
self.assertEqual(dom_b.union(dom_a), Domain([-2,-1,0,1,2]))
def test_union_close(self):
tol = .8 * HTOL
dom_a = Domain([-2, 0, 2])
dom_c = Domain([-2 - 2 * tol, -1 + tol, 1 + tol, 2 + 2 * tol])
self.assertEqual(dom_a.union(dom_c), Domain([-2, -1, 0, 1, 2]))
self.assertEqual(dom_c.union(dom_a), Domain([-2, -1, 0, 1, 2]))
def test_union_close(self):
tol = .8*HTOL
dom_a = Domain([-2,0,2])
dom_c = Domain([-2-2*tol,-1+tol,1+tol,2+2*tol])
self.assertEqual(dom_a.union(dom_c), Domain([-2,-1,0,1,2]))
self.assertEqual(dom_c.union(dom_a), Domain([-2,-1,0,1,2]))
