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70 lines
2.9 KiB
70 lines
2.9 KiB
import stormpy
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import stormpy.logic
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from helpers.helper import get_example_path
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class TestFormulas:
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def test_probability_formula(self):
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formula_str = "P=? [F \"one\"]"
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properties = stormpy.parse_properties(formula_str)
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formula = properties[0].raw_formula
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assert type(formula) == stormpy.logic.ProbabilityOperator
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assert len(properties) == 1
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assert str(formula) == formula_str
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def test_reward_formula(self):
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formula_str = "R=? [F \"one\"]"
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properties = stormpy.parse_properties(formula_str)
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formula = properties[0].raw_formula
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assert type(formula) == stormpy.logic.RewardOperator
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assert len(properties) == 1
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assert str(formula) == "R[exp]=? [F \"one\"]"
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def test_formula_list(self):
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formulas = []
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prop = "=? [F \"one\"]"
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forms = stormpy.parse_properties("P" + prop)
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formulas.append(forms[0].raw_formula)
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forms = stormpy.parse_properties("R" + prop)
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formulas.append(forms[0].raw_formula)
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assert len(formulas) == 2
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assert str(formulas[0]) == "P" + prop
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assert str(formulas[1]) == "R[exp]" + prop
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def test_jani_formula(self):
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_, properties = stormpy.parse_jani_model(get_example_path("dtmc", "brp.jani"))
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for name, prop in properties.items():
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assert "Property_brp_" in name
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assert isinstance(prop, stormpy.Property)
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def test_bounds(self):
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prop = "P=? [F \"one\"]"
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formula = stormpy.parse_properties(prop)[0].raw_formula
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assert not formula.has_bound
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prop = "P<0.4 [F \"one\"]"
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formula = stormpy.parse_properties(prop)[0].raw_formula
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assert formula.has_bound
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assert formula.threshold == stormpy.Rational("0.4")
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assert formula.comparison_type == stormpy.logic.ComparisonType.LESS
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def test_set_bounds(self):
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prop = "P<0.4 [F \"one\"]"
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formula = stormpy.parse_properties(prop)[0].raw_formula
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expression_manager = stormpy.ExpressionManager()
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rational = stormpy.Rational("0.2")
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expression = expression_manager.create_rational(rational)
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formula.set_bound(stormpy.logic.ComparisonType.GEQ, expression)
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assert formula.threshold == stormpy.Rational("0.2")
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assert formula.comparison_type == stormpy.logic.ComparisonType.GEQ
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assert str(formula) == "P>=1/5 [F \"one\"]"
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def test_subformula(self):
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prop = "P=? [F \"one\"]"
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formula = stormpy.parse_properties(prop)[0].raw_formula
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assert type(formula) == stormpy.logic.ProbabilityOperator
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pathform = formula.subformula
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assert type(pathform) == stormpy.logic.EventuallyFormula
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labelform = pathform.subformula
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assert type(labelform) == stormpy.logic.AtomicLabelFormula
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prop = stormpy.core.Property("label-formula", labelform)
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assert prop.raw_formula == labelform
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