def test_allBadSpecsAreBad(spec):
badSpecs = getAllBadSpecs(spec, 15)
for badSpec in badSpecs:
foundry = Foundry(
Optimize()).applyAndTrackSpec(badSpec).applyAndTrackSpec(spec)
assert foundry.check() == unsat
assert len(foundry.getReasonsForUnsat()) != 0
def getAllBadSpecs(spec: Spec,
maxCount=None,
doShuffle=True,
filterOutUnsatisfiable=True) -> List[Spec]:
badSpecs = []
constraintsToInclude = powset(spec.constraints)
constraintsToInvert = constraintsToInclude[::-1]
constraintsToInclude = constraintsToInclude[:-1]
constraintsToInvert = constraintsToInvert[:-1]
if doShuffle:
constraintsToInclude, constraintsToInvert = shuffle(
constraintsToInclude, constraintsToInvert)
if maxCount is None:
maxCount = len(constraintsToInclude)
else:
maxCount = min(maxCount, len(constraintsToInclude))
for i in range(maxCount):
constraints = [
pitchesLetterValueValid(spec.line)
] # Needed ensure that the spec doesn't cheat on the gamut constraint
constraints += constraintsToInclude[i]
constraints += [x.inv() for x in constraintsToInvert[i]]
badSpec = Spec(spec.line, constraints, spec.maximisations,
spec.minimisations)
foundry = Foundry(Optimize()).applySpec(badSpec)
if filterOutUnsatisfiable:
if foundry.check() == sat:
badSpecs.append(badSpec)
else:
badSpecs.append(badSpec)
return badSpecs
def test_goodCFIsS1Sat(s1GoodCF):
foundry = Foundry(Optimize())
foundry.applySpec(s1GoodCF)
assert foundry.check() == sat
def test_badCFIsS3Sat(s3BadCF):
foundry = Foundry(Optimize())
foundry.applySpec(s3BadCF)
assert foundry.check() == sat
def test_allBadSpecsSatisfiable(spec):
badSpecs = getAllBadSpecs(spec, 15)
for badSpec in badSpecs:
foundry = Foundry(Optimize()).applySpec(badSpec)
assert foundry.check() == sat