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[varLib.featureVars] Add quadratic test

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We get the optimal solution.
This commit is contained in:
Behdad Esfahbod 2018-11-09 18:59:28 -05:00
parent 34241a819b
commit f6bfc4139d
1 changed files with 35 additions and 13 deletions
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48
Tests/varLib/featureVars_test.py
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@ -4,34 +4,56 @@ from fontTools.varLib.featureVars import (
overlayFeatureVariations) overlayFeatureVariations)
def test_explosion(n = 10): def test_linear(n = 10):
conds = [] conds = []
for i in range(n): for i in range(n):
end = i / n end = i / n
start = end - 1. start = end - 1.
region = [{'axis': (start, end)}] region = [{'X': (start, end)}]
subst = {'g%.2g'%start: 'g%.2g'%end} subst = {'g%.2g'%start: 'g%.2g'%end}
conds.append((region, subst)) conds.append((region, subst))
overlaps = overlayFeatureVariations(conds) overlaps = overlayFeatureVariations(conds)
assert len(overlaps) == 2 * n - 1, overlaps assert len(overlaps) == 2 * n - 1, overlaps
return conds, overlaps return conds, overlaps
if __name__ == "__main__": def test_quadratic(n = 10):
import sys conds = []
from pprint import pprint for i in range(1, n + 1):
quiet = False region = [{'X': (0, i / n),
args = {} 'Y': (0, (n + 1 - i) / n)}]
if len(sys.argv) > 1: subst = {str(i): str(n + 1 - i)}
if sys.argv[1] == '-q': conds.append((region, subst))
quiet = True overlaps = overlayFeatureVariations(conds)
del sys.argv[1] assert len(overlaps) == n * (n + 1) // 2, overlaps
args['n'] = int(sys.argv[1]) return conds, overlaps
input, output = test_explosion(**args)
def run(test, n, quiet):
print()
print("%s:" % test.__name__)
input, output = test(n)
if quiet: if quiet:
print(len(output)) print(len(output))
else: else:
print()
print("Input:") print("Input:")
pprint(input) pprint(input)
print() print()
print("Output:") print("Output:")
pprint(output) pprint(output)
print()
if __name__ == "__main__":
import sys
from pprint import pprint
quiet = False
n = 3
if len(sys.argv) > 1 and sys.argv[1] == '-q':
quiet = True
del sys.argv[1]
if len(sys.argv) > 1:
n = int(sys.argv[1])
run(test_linear, n=n, quiet=quiet)
run(test_quadratic, n=n, quiet=quiet)