xref: /aosp_15_r20/external/fonttools/Tests/varLib/iup_test.py (revision e1fe3e4ad2793916b15cccdc4a7da52a7e1dd0e9) 
1import fontTools.varLib.iup as iup
2import sys
3import pytest
4
5
6class IupTest:
7    # -----
8    # Tests
9    # -----
10
11    @pytest.mark.parametrize(
12        "delta, coords, forced",
13        [
14            ([(0, 0)], [(1, 2)], set()),
15            ([(0, 0), (0, 0), (0, 0)], [(1, 2), (3, 2), (2, 3)], set()),
16            (
17                [(1, 1), (-1, 1), (-1, -1), (1, -1)],
18                [(0, 0), (2, 0), (2, 2), (0, 2)],
19                set(),
20            ),
21            (
22                [
23                    (-1, 0),
24                    (-1, 0),
25                    (-1, 0),
26                    (-1, 0),
27                    (-1, 0),
28                    (0, 0),
29                    (0, 0),
30                    (0, 0),
31                    (0, 0),
32                    (0, 0),
33                    (0, 0),
34                    (-1, 0),
35                ],
36                [
37                    (-35, -152),
38                    (-86, -101),
39                    (-50, -65),
40                    (0, -116),
41                    (51, -65),
42                    (86, -99),
43                    (35, -151),
44                    (87, -202),
45                    (51, -238),
46                    (-1, -187),
47                    (-53, -239),
48                    (-88, -205),
49                ],
50                {11},
51            ),
52            (
53                [
54                    (0, 0),
55                    (1, 0),
56                    (2, 0),
57                    (2, 0),
58                    (0, 0),
59                    (1, 0),
60                    (3, 0),
61                    (3, 0),
62                    (2, 0),
63                    (2, 0),
64                    (0, 0),
65                    (0, 0),
66                    (-1, 0),
67                    (-1, 0),
68                    (-1, 0),
69                    (-3, 0),
70                    (-1, 0),
71                    (0, 0),
72                    (0, 0),
73                    (-2, 0),
74                    (-2, 0),
75                    (-1, 0),
76                    (-1, 0),
77                    (-1, 0),
78                    (-4, 0),
79                ],
80                [
81                    (330, 65),
82                    (401, 65),
83                    (499, 117),
84                    (549, 225),
85                    (549, 308),
86                    (549, 422),
87                    (549, 500),
88                    (497, 600),
89                    (397, 648),
90                    (324, 648),
91                    (271, 648),
92                    (200, 620),
93                    (165, 570),
94                    (165, 536),
95                    (165, 473),
96                    (252, 407),
97                    (355, 407),
98                    (396, 407),
99                    (396, 333),
100                    (354, 333),
101                    (249, 333),
102                    (141, 268),
103                    (141, 203),
104                    (141, 131),
105                    (247, 65),
106                ],
107                {5, 15, 24},
108            ),
109        ],
110    )
111    def test_forced_set(self, delta, coords, forced):
112        f = iup._iup_contour_bound_forced_set(delta, coords)
113        assert forced == f
114
115        chain1, costs1 = iup._iup_contour_optimize_dp(delta, coords, f)
116        chain2, costs2 = iup._iup_contour_optimize_dp(delta, coords, set())
117
118        assert chain1 == chain2, f
119        assert costs1 == costs2, f
120
121
122if __name__ == "__main__":
123    sys.exit(pytest.main(sys.argv))
124