def test_opt_generator():
def _test_gen():
yield 1
assert check.opt_generator(_test_gen())
gen = _test_gen()
assert check.opt_generator(gen)
assert check.opt_generator(None) is None
with pytest.raises(ParameterCheckError):
assert check.opt_generator(list(gen))
with pytest.raises(ParameterCheckError):
assert check.opt_generator(_test_gen)
def _user_event_sequence_for_step_compute_fn(step_context, evaluated_inputs):
check.inst_param(step_context, 'step_context', SystemStepExecutionContext)
check.dict_param(evaluated_inputs, 'evaluated_inputs', key_type=str)
with user_code_error_boundary(
DagsterExecutionStepExecutionError,
msg_fn=lambda: '''Error occured during the execution of step:
step key: "{key}"
solid invocation: "{solid}"
solid definition: "{solid_def}"
'''.format(
key=step_context.step.key,
solid_def=step_context.solid_def.name,
solid=step_context.solid.name,
),
step_key=step_context.step.key,
solid_def_name=step_context.solid_def.name,
solid_name=step_context.solid.name,
):
gen = check.opt_generator(
step_context.step.compute_fn(step_context, evaluated_inputs))
if gen is not None:
for event in gen:
yield event
def _iterate_step_outputs_within_boundary(step_context, evaluated_inputs):
check.inst_param(step_context, 'step_context', SystemStepExecutionContext)
check.dict_param(evaluated_inputs, 'evaluated_inputs', key_type=str)
error_str = '''Error occured during the execution of step:
step key: "{key}"
solid instance: "{solid}"
solid definition: "{solid_def}"
'''.format(
key=step_context.step.key,
solid_def=step_context.solid_def.name,
solid=step_context.solid.name,
)
with user_code_error_boundary(
DagsterExecutionStepExecutionError,
error_str,
step_key=step_context.step.key,
solid_def_name=step_context.solid_def.name,
solid_name=step_context.solid.name,
):
gen = check.opt_generator(
step_context.step.compute_fn(step_context, evaluated_inputs))
if gen is not None:
for step_output in gen:
yield step_output
def _user_event_sequence_for_step_compute_fn(step_context, evaluated_inputs):
check.inst_param(step_context, "step_context", SystemStepExecutionContext)
check.dict_param(evaluated_inputs, "evaluated_inputs", key_type=str)
with user_code_error_boundary(
DagsterExecutionStepExecutionError,
control_flow_exceptions=[Failure, RetryRequested],
msg_fn=lambda: """Error occurred during the execution of step:
step key: "{key}"
solid invocation: "{solid}"
solid definition: "{solid_def}"
""".format(
key=step_context.step.key,
solid_def=step_context.solid_def.name,
solid=step_context.solid.name,
),
step_key=step_context.step.key,
solid_def_name=step_context.solid_def.name,
solid_name=step_context.solid.name,
):
gen = check.opt_generator(
step_context.step.compute_fn(step_context, evaluated_inputs))
if gen is not None:
for event in gen:
yield event
def _iterate_step_output_values_within_boundary(step_context,
evaluated_inputs):
check.inst_param(step_context, 'step_context', StepExecutionContext)
check.dict_param(evaluated_inputs, 'evaluated_inputs', key_type=str)
error_str = 'Error occured during step {key}'.format(
key=step_context.step.key)
with _execution_step_error_boundary(step_context, error_str):
gen = check.opt_generator(
step_context.step.compute_fn(step_context, evaluated_inputs))
if gen is not None:
for step_output_value in gen:
yield step_output_value
