5fc65d7168
* Replaced all from ...py23 import * with explicit name imports, or removed completely when possible. * Replaced tounicode() with tostr() * Changed all BytesIO ans StringIO imports to from io import ..., replaced all UnicodeIO with StringIO. * Replaced all unichr() with chr() * Misc minor tweaks and fixes
122 lines
3.6 KiB
Python
122 lines
3.6 KiB
Python
from fontTools.varLib.featureVars import (
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overlayFeatureVariations)
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def test_linear(n = 10):
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conds = []
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for i in range(n):
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end = i / n
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start = end - 1.
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region = [{'X': (start, end)}]
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subst = {'g%.2g'%start: 'g%.2g'%end}
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conds.append((region, subst))
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overlaps = overlayFeatureVariations(conds)
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assert len(overlaps) == 2 * n - 1, overlaps
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return conds, overlaps
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def test_quadratic(n = 10):
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conds = []
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for i in range(1, n + 1):
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region = [{'X': (0, i / n),
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'Y': (0, (n + 1 - i) / n)}]
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subst = {str(i): str(n + 1 - i)}
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conds.append((region, subst))
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overlaps = overlayFeatureVariations(conds)
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assert len(overlaps) == n * (n + 1) // 2, overlaps
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return conds, overlaps
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def _merge_substitutions(substitutions):
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merged = {}
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for subst in substitutions:
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merged.update(subst)
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return merged
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def _match_condition(location, overlaps):
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for box, substitutions in overlaps:
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for tag, coord in location.items():
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start, end = box[tag]
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if start <= coord <= end:
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return _merge_substitutions(substitutions)
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return {} # no match
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def test_overlaps_1():
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# https://github.com/fonttools/fonttools/issues/1400
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conds = [
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([{'abcd': (4, 9)}], {0: 0}),
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([{'abcd': (5, 10)}], {1: 1}),
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([{'abcd': (0, 8)}], {2: 2}),
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([{'abcd': (3, 7)}], {3: 3}),
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]
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overlaps = overlayFeatureVariations(conds)
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subst = _match_condition({'abcd': 0}, overlaps)
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assert subst == {2: 2}
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subst = _match_condition({'abcd': 1}, overlaps)
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assert subst == {2: 2}
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subst = _match_condition({'abcd': 3}, overlaps)
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assert subst == {2: 2, 3: 3}
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subst = _match_condition({'abcd': 4}, overlaps)
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assert subst == {0: 0, 2: 2, 3: 3}
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subst = _match_condition({'abcd': 5}, overlaps)
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assert subst == {0: 0, 1: 1, 2: 2, 3: 3}
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subst = _match_condition({'abcd': 7}, overlaps)
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assert subst == {0: 0, 1: 1, 2: 2, 3: 3}
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subst = _match_condition({'abcd': 8}, overlaps)
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assert subst == {0: 0, 1: 1, 2: 2}
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subst = _match_condition({'abcd': 9}, overlaps)
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assert subst == {0: 0, 1: 1}
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subst = _match_condition({'abcd': 10}, overlaps)
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assert subst == {1: 1}
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def test_overlaps_2():
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# https://github.com/fonttools/fonttools/issues/1400
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conds = [
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([{'abcd': (1, 9)}], {0: 0}),
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([{'abcd': (8, 10)}], {1: 1}),
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([{'abcd': (3, 4)}], {2: 2}),
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([{'abcd': (1, 10)}], {3: 3}),
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]
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overlaps = overlayFeatureVariations(conds)
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subst = _match_condition({'abcd': 0}, overlaps)
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assert subst == {}
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subst = _match_condition({'abcd': 1}, overlaps)
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assert subst == {0: 0, 3: 3}
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subst = _match_condition({'abcd': 2}, overlaps)
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assert subst == {0: 0, 3: 3}
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subst = _match_condition({'abcd': 3}, overlaps)
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assert subst == {0: 0, 2: 2, 3: 3}
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subst = _match_condition({'abcd': 5}, overlaps)
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assert subst == {0: 0, 3: 3}
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subst = _match_condition({'abcd': 10}, overlaps)
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assert subst == {1: 1, 3: 3}
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def run(test, n, quiet):
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print()
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print("%s:" % test.__name__)
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input, output = test(n)
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if quiet:
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print(len(output))
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else:
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print()
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print("Input:")
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pprint(input)
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print()
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print("Output:")
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pprint(output)
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print()
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if __name__ == "__main__":
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import sys
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from pprint import pprint
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quiet = False
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n = 3
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if len(sys.argv) > 1 and sys.argv[1] == '-q':
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quiet = True
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del sys.argv[1]
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if len(sys.argv) > 1:
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n = int(sys.argv[1])
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run(test_linear, n=n, quiet=quiet)
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run(test_quadratic, n=n, quiet=quiet)
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