def test_aGoalOrDecomposedWithTwoTasksMayNotBeAchievable():
goal = Goal(Decomposition.OR, "Root")
task1 = Task("T1")
task2 = Task("T2")
current = Context("C1")
fullContext = []
fullContext.append(current)
qc = QualityConstraint(current, CommonMetrics.SECONDS, 15,
Comparison.LESS_OR_EQUAL_TO)
task1.addApplicableContext(current)
task1.setProvidedQuality(current, CommonMetrics.SECONDS, 16)
task2.addApplicableContext(current)
task2.setProvidedQuality(current, CommonMetrics.SECONDS, 17)
goal.addDependency(task1)
goal.addDependency(task2)
goal.addApplicableContext(current)
interp = Interpretation()
interp.addQualityConstraint(qc)
plan = PragmaticPlanning().isAchievable(goal, fullContext, interp)
assert goal.decomposition is Decomposition.OR
assert plan is None
def test_aNonApplicableRootGoalIsNotAchievable():
goal = Goal(Decomposition.AND, "G1")
current = Context("C1")
fullContext = []
qc = QualityConstraint(current, CommonMetrics.SECONDS, 15,
Comparison.LESS_OR_EQUAL_TO)
goal.addApplicableContext(Context("C2"))
interp = Interpretation()
interp.addQualityConstraint(qc)
assert PragmaticPlanning().isAchievable(goal, fullContext, interp) is None
def test_shouldBeApplicable():
goal = Goal(Decomposition.AND, "G1")
task = Task("T1")
delegation = Delegation("D1")
contextCurrent = Context("C1")
fullContext = []
fullContext.append(contextCurrent)
goal.addApplicableContext(contextCurrent)
task.addApplicableContext(contextCurrent)
delegation.addApplicableContext(contextCurrent)
assert True is PragmaticPlanning().isApplicable(goal, fullContext)
assert True is PragmaticPlanning().isApplicable(task, fullContext)
assert True is PragmaticPlanning().isApplicable(delegation, fullContext)
def test_aGoalWithATaskMayBeAchievable():
goal = Goal(Decomposition.AND, "Root")
task = Task("T1")
current = Context("C1")
fullContext = []
fullContext.append(current)
qc = QualityConstraint(current, CommonMetrics.SECONDS, 15,
Comparison.LESS_OR_EQUAL_TO)
interp = Interpretation()
interp.addQualityConstraint(qc)
task.addApplicableContext(current)
task.setProvidedQuality(current, CommonMetrics.SECONDS, 13)
goal.addDependency(task)
goal.addApplicableContext(current)
plan = PragmaticPlanning().isAchievable(goal, fullContext, interp)
assert len(plan.getTasks()) == 1
