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import pycarl
import stormpy
import stormpy.logic
class TestFormulas:
def test_probability_formula(self):
formula_str = "P=? [F \"one\"]"
properties = stormpy.parse_properties(formula_str)
formula = properties[0].raw_formula
assert type(formula) == stormpy.logic.ProbabilityOperator
assert len(properties) == 1
assert str(formula) == formula_str
def test_reward_formula(self):
formula_str = "R=? [F \"one\"]"
properties = stormpy.parse_properties(formula_str)
formula = properties[0].raw_formula
assert type(formula) == stormpy.logic.RewardOperator
assert len(properties) == 1
assert str(formula) == "R[exp]=? [F \"one\"]"
def test_formula_list(self):
formulas = []
prop = "=? [F \"one\"]"
forms = stormpy.parse_properties("P" + prop)
formulas.append(forms[0].raw_formula)
forms = stormpy.parse_properties("R" + prop)
formulas.append(forms[0].raw_formula)
assert len(formulas) == 2
assert str(formulas[0]) == "P" + prop
assert str(formulas[1]) == "R[exp]" + prop
def test_bounds(self):
prop = "P=? [F \"one\"]"
formula = stormpy.parse_properties(prop)[0].raw_formula
assert not formula.has_bound
prop = "P<0.4 [F \"one\"]"
formula = stormpy.parse_properties(prop)[0].raw_formula
assert formula.has_bound
assert formula.threshold == stormpy.Rational("0.4")
assert formula.comparison_type == stormpy.logic.ComparisonType.LESS
# setter not currently implemented (non-trivial due to Expression container)
#def test_set_bounds(self):
# prop = "P<0.4 [F \"one\"]"
# formula = stormpy.parse_properties(prop)[0].raw_formula
# formula.threshold = pycarl.Rational("0.2")
# formula.comparison_type = stormpy.logic.ComparisonType.GEQ
# assert formula.threshold == pycarl.Rational("0.2")
# assert formula.comparison_type == stormpy.logic.ComparisonType.GEQ
# assert str(formula) == "P>=1/5 [F \"one\"]"
def test_subformula(self):
prop = "P=? [F \"one\"]"
formula = stormpy.parse_properties(prop)[0].raw_formula
assert type(formula) == stormpy.logic.ProbabilityOperator
pathform = formula.subformula
assert type(pathform) == stormpy.logic.EventuallyFormula
labelform = pathform.subformula
assert type(labelform) == stormpy.logic.AtomicLabelFormula
prop = stormpy.core.Property("label-formula", labelform)
assert prop.raw_formula == labelform