def test_get_meter_input():
dummy_meter = DummyMeter()
assert dummy_meter.get_inputs() == {"DummyMeter":{"inputs":["value"],"child_inputs":[]}}
seq_meter = Sequence(sequence=[DummyMeter(),DummyMeter()])
assert seq_meter.get_inputs() == {"Sequence":
{"inputs": [],
"child_inputs": [
{"DummyMeter":{"inputs":["value"],"child_inputs":[]}},
{"DummyMeter":{"inputs":["value"],"child_inputs":[]}}
]}}
cond_meter = Condition(condition_parameter=(lambda x: True),success=DummyMeter(),failure=DummyMeter())
assert cond_meter.get_inputs() == {'Condition':
{'child_inputs':
{'failure':
{'DummyMeter': {'child_inputs': [], 'inputs': ['value']}},
'success':
{'DummyMeter': {'child_inputs': [],'inputs': ['value']}}},
'inputs': []
}}
def test_sane_missing_input_error_messages():
dummy_meter = DummyMeter()
with pytest.raises(TypeError) as excinfo:
dummy_meter.evaluate()
assert "expected argument 'value' for meter 'DummyMeter'; got kwargs=[] (with mapped_inputs=[]) instead." in excinfo.value.args[0]
seq_meter = Sequence(sequence=[
DummyMeter(input_mapping={"value_one":"value"},
output_mapping={"result":"result_one"}),
DummyMeter(input_mapping={"value_two":"value"},
output_mapping={"result":"result_two"}),
])
assert seq_meter.evaluate(value_one=1,value_two=2) == {'result_one': 1, 'result_two': 2}
with pytest.raises(TypeError) as excinfo:
seq_meter.evaluate(value_one=1)
assert "expected argument 'value' for meter 'DummyMeter';" \
" got kwargs=['result_one', 'value_one'] " \
"(with mapped_inputs=['result_one', 'value_one']) instead." \
== excinfo.value.args[0]
