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_shouldBeUnachievable():
root = Goal(Decomposition.AND, "root")
context1 = Context("c1")
context2 = Context("c2")
current = []
current.append(context1)
task1 = Task("T1")
task2 = Task("T2")
task1.addApplicableContext(context2)
task2.addApplicableContext(context2)
root.addDependency(task1)
root.addDependency(task2)
deps = []
deps.append(task1)
deps.append(task2)
plan = PragmaticPlanning().isAchievable(root, current, None)
assert plan is None
def test_shouldGetDependencies():
root = Goal(Decomposition.AND, "root")
task = Task("T1")
goal = Goal(Decomposition.AND, "G1")
delegation = Delegation("D1")
root.addDependency(task)
root.addDependency(goal)
root.addDependency(delegation)
deps = []
deps.append(delegation)
deps.append(goal)
deps.append(task)
for d in deps:
assert d in root.dependencies
def test_shouldBeAchievable():
root = Goal(Decomposition.AND, "root")
context = Context("c1")
current = []
current.append(context)
task1 = Task("t1")
task2 = Task("t2")
task1.addApplicableContext(context)
root.addDependency(task1)
root.addDependency(task2)
plan = PragmaticPlanning().isAchievable(root, current, None)
assert plan
assert task2 in plan.getTasks()
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
def test_shouldGetApplicableDependencies():
root = Goal(Decomposition.AND, "root")
context = Context("c1")
current = []
current.append(context)
task = Task("t1")
goal = Goal(Decomposition.AND, "g1")
delegation = Delegation("D1")
task.addApplicableContext(context)
root.addDependency(task)
root.addDependency(goal)
root.addDependency(delegation)
deps = []
deps.append(task)
assert 1 == len(deps)
assert task in deps
