def test_remembers_the_furthest_it_ever_is_from_the_origin(self):
walker = Walker()
walker.advance('nw,sw,sw,ne')
self.assertEqual(walker.distance_from_origin, 2)
self.assertEqual(walker.furthest_distance, 3)
def test_knows_how_far_when_its_all_jagged(self):
walker = Walker()
walker.advance('nw,sw,sw')
self.assertEqual(walker.distance_from_origin, 3)
def test_starts_at_the_origin(self):
walker = Walker()
self.assertEqual(walker.coordinates, (0, 0, 0))
def test_knows_how_far_from_the_origin_it_is(self):
walker = Walker()
walker.advance('s,s')
self.assertEqual(walker.distance_from_origin, 2)
def test_knows_how_far_on_a_diagonal(self):
walker = Walker()
walker.advance('se,se')
self.assertEqual(walker.distance_from_origin, 2)
def test_moves_northeast(self):
walker = Walker()
walker.move('ne')
self.assertEqual(walker.coordinates, (1, 0, -1))
def test_advances_with_a_list_of_moves_in_string_form(self):
walker = Walker()
walker.advance('s,s')
self.assertEqual(walker.coordinates, (0, -2, 2))
def test_moves_southeast(self):
walker = Walker()
walker.move('se')
self.assertEqual(walker.coordinates, (1, -1, 0))
def test_moves_south(self):
walker = Walker()
walker.move('s')
self.assertEqual(walker.coordinates, (0, -1, 1))
def test_moves_southwest(self):
walker = Walker()
walker.move('sw')
self.assertEqual(walker.coordinates, (-1, 0, 1))
def test_moves_northwest(self):
walker = Walker()
walker.move('nw')
self.assertEqual(walker.coordinates, (-1, 1, 0))
def test_moves_north(self):
walker = Walker()
walker.move('n')
self.assertEqual(walker.coordinates, (0, 1, -1))