arg_map={MakePie.MAKER: ThrowPieContext.THROWER},
# we bind from the returned result back to the context
result_map=MakePie.ResultMap(ThrowPieContext)
)
ThrowThingStep = Step(
ThrowThing(),
arg_map=ThrowThing.AutoMap({ThrowThing.ACTOR: ThrowPieContext.THROWER,
ThrowThing.THING: ThrowPieContext.PIE}),
result_map={ThrowPieContext.WAS_HIT: 'hit'}
)
""" There are a few ways to build up a workflow. By constructor..."""
ThrowPieWorkflowA = Workflow(steps=[
IsUserAuthorizedStep,
MakePieStep,
ThrowThingStep,
])
""" Or using add_step..."""
ThrowPieWorkflowB = Workflow().add_step(
IsUserAuthorizedStep
).add_step(
MakePieStep
).add_step(
ThrowThingStep
)
""" Or using the overloaded addition operator."""
EmptyWorkflow = Workflow()
ThrowPieWorkflowC_A = EmptyWorkflow + IsUserAuthorizedStep + MakePieStep
def test_bad_concatenation(self):
with nose.tools.assert_raises(TypeError):
Workflow() + 10
def test_default_on_error(self):
m = Mock(side_effect=ValueError)
w = Workflow(steps=[m])
with nose.tools.assert_raises(ValueError): # @UndefinedVariable
w(DefaultContext())
def test_skip(self):
w = Workflow(steps=[self.skip])
ctx = w(DefaultContext())
assert ctx.replies == []