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from mutatorMath.objects.error import MutatorError
from mutatorMath.objects.location import Location, sortLocations, biasFromLocations
from mutatorMath.objects.mutator import Mutator, buildMutator, getLimits
def test_singleAxis(n):
"""
Tests for a single axis.
A mutator is created with a single value, 100, on a single axis.
values we enter should be reproduced
>>> test_singleAxis(1)
100.0
>>> test_singleAxis(0)
0
a value in the middle should be in the middle
>>> test_singleAxis(.5)
50.0
>>> test_singleAxis(.99)
99.0
extrapolation over zero
>>> test_singleAxis(-1)
-100.0
>>> test_singleAxis(-2)
-200.0
>>> test_singleAxis(-1.5)
-150.0
extrapolation over value
>>> test_singleAxis(2)
200.0
"""
m = Mutator()
neutral = 0
value = 100.0
m.setNeutral(neutral-neutral)
m.addDelta(Location(pop=1), value-neutral, deltaName="test")
return m.getInstance(Location(pop=n)) + neutral
def test_twoAxes(l, n):
"""Test for a system with two axes, 2 values both on-axis.
>>> test_twoAxes(1, 1)
0.0
>>> test_twoAxes(1, 0)
100.0
>>> test_twoAxes(0, 1)
-100.0
>>> test_twoAxes(2, 0)
200.0
>>> test_twoAxes(0, 2)
-200.0
a value in the middle should be in the middle
"""
m = Mutator()
neutral = 0
value = 100.0
m.setNeutral(neutral-neutral)
m.addDelta(Location(pop=1), value-neutral, deltaName="test1")
m.addDelta(Location(snap=1), -1*value-neutral, deltaName="test2")
return m.getInstance(Location(pop=l, snap=n)) + neutral
def test_twoAxesOffAxis(l, n):
"""Test for a system with two axes. Three values, two on-axis, one off-axis.
>>> test_twoAxesOffAxis(0, 0)
0
>>> test_twoAxesOffAxis(1, 1)
50.0
>>> test_twoAxesOffAxis(2, 2)
200.0
>>> test_twoAxesOffAxis(1, 0)
100.0
>>> test_twoAxesOffAxis(0, 1)
-100.0
>>> test_twoAxesOffAxis(2, 0)
200.0
>>> test_twoAxesOffAxis(0, 2)
-200.0
a value in the middle should be in the middle
"""
m = Mutator()
neutral = 0
value = 100.0
m.setNeutral(neutral-neutral)
m.addDelta(Location(pop=1), value-neutral, deltaName="test1")
m.addDelta(Location(snap=1), -1*value-neutral, deltaName="test2")
m.addDelta(Location(pop=1, snap=1), 50, punch=True, deltaName="test2")
return m.getInstance(Location(pop=l, snap=n)) + neutral
def test_twoAxesOffAxisSmall(l, n):
"""Test for a system with two axes. Three values, two on-axis, one off-axis.
>>> test_twoAxesOffAxisSmall(0, 0)
0
>>> test_twoAxesOffAxisSmall(1, 1)
5e-16
>>> test_twoAxesOffAxisSmall(2, 2)
2e-15
>>> test_twoAxesOffAxisSmall(1, 0)
1e-15
>>> test_twoAxesOffAxisSmall(0, 1)
-1e-15
>>> test_twoAxesOffAxisSmall(2, 0)
2e-15
>>> test_twoAxesOffAxisSmall(0, 2)
-2e-15
a value in the middle should be in the middle
"""
m = Mutator()
neutral = 0
value = 1e-15
m.setNeutral(neutral-neutral)
m.addDelta(Location(pop=1), value-neutral, deltaName="test1")
m.addDelta(Location(snap=1), -1*value-neutral, deltaName="test2")
m.addDelta(Location(pop=1, snap=1), 0.5*value-neutral, punch=True, deltaName="test2")
return m.getInstance(Location(pop=l, snap=n)) + neutral
def test_getLimits(a, b, t):
"""Test the getLimits function
>>> test_getLimits(0, 1, 0)
{'pop': (None, 0, None)}
>>> test_getLimits(0, 1, 0.5)
{'pop': (0, None, 1)}
>>> test_getLimits(0, 1, 1)
{'pop': (None, {1: [<Location pop:1 >]}, None)}
"""
la = Location(pop=a)
lb = Location(pop=b)
locations = [la, lb]
test = Location(pop=t)
print(getLimits(locations, test))
def test_methods():
""" Test some of the methods.
>>> m = test_methods()
>>> sorted(list(m.getAxisNames()))
['pop', 'snap']
"""
m = Mutator()
neutral = 0
value = 100.0
m.setNeutral(neutral-neutral)
m.addDelta(Location(pop=1), value-neutral, deltaName="test1")
m.addDelta(Location(snap=1), -1*value-neutral, deltaName="test2")
m.addDelta(Location(pop=1, snap=1), 50, punch=True, deltaName="test2")
return m
def test_builder():
""" Test the mutator builder.
>>> items = [
... (Location(pop=1, snap=1), 1),
... (Location(pop=2, snap=1), 2),
... (Location(pop=3, snap=1), 3),
... (Location(pop=1, snap=2), 4),
... (Location(pop=2, snap=2), 5),
... (Location(pop=3, snap=2), 6),
... ]
>>> bias, mb = buildMutator(items)
>>> bias
<Location pop:1, snap:1 >
>>> mb.makeInstance(Location(pop=1, snap=1))
1
>>> mb.makeInstance(Location(pop=1, snap=2))
4
>>> mb.makeInstance(Location(pop=3, snap=2))
6
>>> mb.makeInstance(Location(pop=3, snap=1.5))
4.5
"""
def test_builderBender_1():
""" Test the mutator builder with a warp dict
>>> items = [
... (Location(pop=0), 0),
... (Location(pop=10), 10),
... ]
>>> axisdict = dict(pop = dict(name='pop', minimum=0, maximum=1000, default=0, map=[(0,0), (5, 2), (7, 7), (10,10)]))
>>> bias, mb = buildMutator(items, axisdict)
>>> bias
<Location pop:0 >
>>> sorted(mb.items())
[((), (0, 'origin')), ((('pop', 10),), (10, None))]
>>> mb.makeInstance(Location(pop=0), bend=True)
0
>>> mb.makeInstance(Location(pop=1), bend=True)
0.4
>>> mb.makeInstance(Location(pop=2), bend=True)
0.8
>>> mb.makeInstance(Location(pop=3), bend=True)
1.2
>>> mb.makeInstance(Location(pop=4), bend=True)
1.6
>>> mb.makeInstance(Location(pop=5), bend=True)
2.0
>>> mb.makeInstance(Location(pop=6), bend=True)
4.5
>>> mb.makeInstance(Location(pop=7), bend=True)
7.0
>>> mb.makeInstance(Location(pop=8), bend=True)
7.999999999999999
>>> mb.makeInstance(Location(pop=9), bend=True)
9.0
>>> mb.makeInstance(Location(pop=10), bend=True)
10
"""
def test_builderBender_2():
""" Test the mutator builder with a warp dict
>>> items = [
... (Location(pop=0), 0),
... #(Location(pop=7), 5),
... (Location(pop=10), 10),
... ]
>>> axisdict = dict(pop = dict(name='pop', minimum=0, maximum=1000, default=0, map=[(0,0), (5, 2), (10,10)]))
>>> bias, mb = buildMutator(items, axisdict)
>>> bias
<Location pop:0 >
>>> sorted(mb.items())
[((), (0, 'origin')), ((('pop', 10),), (10, None))]
>>> mb.makeInstance(Location(pop=0), bend=True)
0
>>> r = []
>>> for p in range(0, 11):
... r.append(mb.makeInstance(Location(pop=p), bend=True))
>>> r
[0, 0.4, 0.8, 1.2, 1.6, 2.0, 3.5999999999999996, 5.2, 6.799999999999999, 8.4, 10]
"""
def test_builderBender_3():
"""
Test case from
https://github.com/googlefonts/fontmake/pull/552#issuecomment-493617252
>>> masters = [
... (Location(Width=70), 0),
... (Location(Width=100), 100),
... ]
>>> axes = {
... 'Width': {
... 'tag': 'wdth',
... 'name': 'Width',
... 'minimum': 62.5,
... 'default': 100.0,
... 'maximum': 100.0,
... 'map': [(62.5, 70.0), (75.0, 79.0), (87.5, 89.0), (100.0, 100.0)],
... }
... }
>>> _, mut = buildMutator(masters, axes)
>>> mut.makeInstance(Location(Width=79), bend=False)
30.0
>>> mut.makeInstance(Location(Width=75), bend=True)
30.0
"""
if __name__ == "__main__":
import sys
import doctest
sys.exit(doctest.testmod().failed)
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