def test_get_intersection_area_same_as_piece_if_fully_submerged(self):
board = Board(Polygon([[0, 0], [0, 1000], [1000, 1000], [1000, 0]]),
[0, 0])
piece = PolygonPiece(Polygon([[0, 0], [100, 100], [100, 0]]), [50, 50])
actual_area = PolygonIntersector().intersection_area(
board.get_points_in_plane(), piece.get_points_in_plane())
self.assertEqual(piece.get_polygon().area(), actual_area)
def test_intersection_half_of_square(self):
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
piece = PolygonPiece(Polygon([[0, 0], [0, 100], [100, 100], [100, 0]]),
[0, 0])
actual_area = PolygonIntersector().intersection_area(
board.get_points_in_plane(), piece.get_points_in_plane())
self.assertEqual(piece.get_polygon().area() / 2, actual_area)
def test_get_intersection_zero_if_poly_on_a_different_planet(self):
board = Board(Polygon([[0, 0], [0, 1000], [1000, 0], [1000, 1000]]),
[0, 0])
piece = PolygonPiece(Polygon([[0, 0], [100, 100], [100, 0]]),
[5000, 5000])
actual_area = PolygonIntersector().intersection_area(
board.get_points_in_plane(), piece.get_points_in_plane())
self.assertEqual(0, actual_area)
def test_get_center_distance_from_doesnt_return_0_if_centroid_in_different_point(
self):
polygon = Polygon([[0, 0], [3, 3], [0, 3]])
polygon.get_centroid_point = lambda: [51, 33]
piece = PolygonPiece(polygon, [0, 0])
distance = piece.get_center_distance_from(1337, 1337)
self.assertNotEqual(0, distance[0])
self.assertNotEqual(0, distance[1])
def test_get_pieces_returns_pieces(self):
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
pieces = [
PolygonPiece(Polygon(random_polygon_points(1)[0]), [0, 0]),
PolygonPiece(Polygon(random_polygon_points(1)[0]), [0, 0]),
PolygonPiece(Polygon(random_polygon_points(1)[0]), [0, 0])
]
intersector = PolygonIntersector()
level = Level(board, pieces, intersector)
self.assertEqual(pieces, level.get_pieces())
def test_get_center_distance_from_returns_0_if_centroid_in_same_point(
self):
polygon = Polygon([[0, 0], [3, 3], [0, 3]])
polygon.get_centroid_point = lambda: [1337, 1337]
piece = PolygonPiece(polygon, [0, 0])
distance = piece.get_center_distance_from(1337, 1337)
self.assertEqual(0, distance[0])
self.assertEqual(0, distance[1])
def test_two_fully_overlapping_pieces_serve_same_board_coverage(
self, *points):
piece = PolygonPiece(Polygon(list(points)), [0, 0])
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
level = Level(board, [piece], PolygonIntersector())
coverage_with_one_piece = level.get_completion_percentage()
level = Level(board, [piece, piece], PolygonIntersector())
coverage_with_two_pieces = level.get_completion_percentage()
self.assertAlmostEqual(coverage_with_one_piece,
coverage_with_two_pieces,
delta=1)
def test_get_distance_from_returns_positive_vals(self):
polygon = Polygon([[0, 0], [3, 3], [0, 3]])
piece1 = PolygonPiece(polygon, [1233, 12312])
self.assertTrue(
all(a > 0 for a in piece1.get_center_distance_from(0, 0)))
piece2 = PolygonPiece(polygon, [-1233, -12312])
self.assertTrue(
all(a > 0 for a in piece2.get_center_distance_from(0, 0)))
def test_get_center_distance_from_is_affected_by_polygon_piece_position(
self):
polygon = Polygon([[0, 0], [3, 3], [0, 3]])
piece1 = PolygonPiece(polygon, [0, 0])
piece2 = PolygonPiece(polygon, [15, 66])
p1pts = piece1.get_center_distance_from(0, 0)
p2pts = piece2.get_center_distance_from(0, 0)
self.assertFalse(all(a == b for a, b in zip(p1pts, p2pts)))
def test_adding_a_piece_does_not_decrease_coverage(self, *points):
piece = PolygonPiece(Polygon(list(points)), [0, 0])
piece1 = PolygonPiece(Polygon(random_polygon_points(1)[0]), [0, 0])
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
intersector = PolygonIntersector()
level = Level(board, [piece], intersector)
coverage_with_one_piece = level.get_completion_percentage()
level = Level(board, [piece, piece1], intersector)
coverage_with_two_pieces = level.get_completion_percentage()
if len(
intersector.intersection_polygons(
piece.get_points_in_plane(),
piece1.get_points_in_plane())) == 0:
self.assertGreaterEqual(coverage_with_two_pieces,
coverage_with_one_piece)
else:
coverage_almost_equal = abs(coverage_with_two_pieces -
coverage_with_one_piece) <= 1
two_piece_coverage_greater_equal = coverage_with_two_pieces >= coverage_with_one_piece
self.assertTrue(two_piece_coverage_greater_equal
or coverage_almost_equal)
def test_construct(self):
PolygonPiece(Polygon([[0, 0], [0, 10], [10, 0], [10, 10]]), [0, 0])
def test_board_coverage_not_negative(self, *points):
piece = PolygonPiece(Polygon(list(points)), random_position())
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
level = Level(board, [piece], PolygonIntersector())
actual_coverage = level.get_completion_percentage()
self.assertGreaterEqual(0, actual_coverage)
def test_board_coverage_with_piece_same_size_as_board_is_100_percent(self):
board = Board(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
piece = PolygonPiece(Polygon([[0, 0], [100, 100], [100, 0]]), [0, 0])
level = Level(board, [piece], PolygonIntersector())
self.assertEqual(100, level.get_completion_percentage())
def test_polygon_used(self):
polygon = Polygon([[0, 0], [0, 10], [10, 0], [10, 10]])
piece = PolygonPiece(polygon, [1, 2])
self.assertEqual(polygon, piece.get_polygon())
def test_points_same_as_poly_if_position_zero(self, *points):
points = list(points)
polygon = Polygon(points.copy())
piece = PolygonPiece(polygon, [0, 0])
self.assertEqual(polygon.get_points().tolist(),
piece.get_points_in_plane().tolist())
def test_points_not_same_as_poly_if_position_not_zero(self, *position):
position = list(position)
polygon = Polygon([[0, 0], [0, 10], [10, 0], [10, 10]])
piece = PolygonPiece(polygon, position)
self.assertNotEqual(polygon.get_points().tolist(),
piece.get_points_in_plane().tolist())
def test_get_position_returns_value_passed_in_construct(self):
position = [12, 543]
piece = PolygonPiece(Polygon([[0, 0], [0, 10], [10, 0], [10, 10]]),
position.copy())
self.assertEqual(position, piece.get_position())
def test_get_center_distance_from_returns_array_with_two_numbers(self):
piece = PolygonPiece(Polygon([[0, 0], [3, 3], [0, 3]]), [125, 30])
distance = piece.get_center_distance_from(250, 300)
self.assertEqual(2, len(distance))
def test_move_zeroes_doesnt_change_position(self):
starting_position = [125, 123]
piece = PolygonPiece(Polygon([[0, 0], [3, 3], [0, 3]]),
starting_position.copy())
piece.move(0, 0)
self.assertEqual(starting_position, piece.get_position())
def test_move_negative_amount_doesnt_increase_position(self, x, y):
starting_position = [125, 123]
piece = PolygonPiece(Polygon([[0, 0], [3, 3], [0, 3]]),
starting_position.copy())
piece.move(x, y)
self.assertLessEqual(piece.get_position(), starting_position)
def test_points_dont_increase_with_positive_position(self, *position):
position = list(position)
polygon = Polygon([[0, 0], [0, 10], [10, 0], [10, 10]])
piece = PolygonPiece(polygon, position)
self.assertLessEqual(piece.get_points_in_plane().sum(),
polygon.get_points().sum())