xref: /aosp_15_r20/external/fonttools/Tests/tfmLib/tfmLib_test.py (revision e1fe3e4ad2793916b15cccdc4a7da52a7e1dd0e9) 
1import glob
2import os
3
4import pytest
5
6from fontTools import tfmLib
7
8DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
9
10
11@pytest.mark.parametrize("path", glob.glob(f"{DATA_DIR}/cm*.tfm"))
12def test_read(path):
13    tfm = tfmLib.TFM(path)
14    assert tfm.designsize == 10.0
15    assert tfm.fontdimens
16    assert len(tfm.fontdimens) >= 7
17    assert tfm.extraheader == {}
18    assert tfm.right_boundary_char is None
19    assert tfm.left_boundary_char is None
20    assert len(tfm.chars) == 128
21
22
23def test_read_boundary_char():
24    path = os.path.join(DATA_DIR, "dummy-space.tfm")
25    tfm = tfmLib.TFM(path)
26    assert tfm.right_boundary_char == 1
27    assert tfm.left_boundary_char == 256
28
29
30def test_read_fontdimens_vanilla():
31    path = os.path.join(DATA_DIR, "cmr10.tfm")
32    tfm = tfmLib.TFM(path)
33    assert tfm.fontdimens == {
34        "SLANT": 0.0,
35        "SPACE": 0.33333396911621094,
36        "STRETCH": 0.16666698455810547,
37        "SHRINK": 0.11111164093017578,
38        "XHEIGHT": 0.4305553436279297,
39        "QUAD": 1.0000028610229492,
40        "EXTRASPACE": 0.11111164093017578,
41    }
42
43
44def test_read_fontdimens_mathex():
45    path = os.path.join(DATA_DIR, "cmex10.tfm")
46    tfm = tfmLib.TFM(path)
47    assert tfm.fontdimens == {
48        "SLANT": 0.0,
49        "SPACE": 0.0,
50        "STRETCH": 0.0,
51        "SHRINK": 0.0,
52        "XHEIGHT": 0.4305553436279297,
53        "QUAD": 1.0000028610229492,
54        "EXTRASPACE": 0.0,
55        "DEFAULTRULETHICKNESS": 0.03999900817871094,
56        "BIGOPSPACING1": 0.11111164093017578,
57        "BIGOPSPACING2": 0.16666698455810547,
58        "BIGOPSPACING3": 0.19999980926513672,
59        "BIGOPSPACING4": 0.6000003814697266,
60        "BIGOPSPACING5": 0.10000038146972656,
61    }
62
63
64def test_read_fontdimens_mathsy():
65    path = os.path.join(DATA_DIR, "cmsy10.tfm")
66    tfm = tfmLib.TFM(path)
67    assert tfm.fontdimens == {
68        "SLANT": 0.25,
69        "SPACE": 0.0,
70        "STRETCH": 0.0,
71        "SHRINK": 0.0,
72        "XHEIGHT": 0.4305553436279297,
73        "QUAD": 1.0000028610229492,
74        "EXTRASPACE": 0.0,
75        "NUM1": 0.6765079498291016,
76        "NUM2": 0.39373207092285156,
77        "NUM3": 0.44373130798339844,
78        "DENOM1": 0.6859512329101562,
79        "DENOM2": 0.34484100341796875,
80        "SUP1": 0.41289234161376953,
81        "SUP2": 0.36289215087890625,
82        "SUP3": 0.28888893127441406,
83        "SUB1": 0.14999961853027344,
84        "SUB2": 0.24721717834472656,
85        "SUBDROP": 0.05000019073486328,
86        "SUPDROP": 0.3861083984375,
87        "DELIM1": 2.3899993896484375,
88        "DELIM2": 1.010000228881836,
89        "AXISHEIGHT": 0.25,
90    }
91