def test_parse_of_state_is_the_state_itself():
x1 = State()
assert State.parse(x1) is x1
x2 = State.parse(x1, comment="x2")
assert x2 is not x1
assert x2.comment == "x2"
assert x1.comment is None
assert State.parse(x2) is x2
def test_task_state_with_retry():
source = {
"Type":
"Task",
"Resource":
"arn:aws:swf:us-east-1:123456789012:task:X",
"Next":
"Y",
"Retry": [{
"ErrorEquals": ["ErrorA", "ErrorB"],
"IntervalSeconds": 1,
"BackoffRate": 2,
"MaxAttempts": 2
}, {
"ErrorEquals": ["ErrorC"],
"IntervalSeconds": 5
}],
"Catch": [{
"ErrorEquals": ["States.ALL"],
"Next": "Z",
}]
}
state = State.parse(source)
assert isinstance(state, Task)
assert len(state.retry) == 2
assert len(state.catch) == 1
assert state.compile() == source
def test_format_result_selector_returns_applied_result(result_path,
expected_result):
state = State.parse(result_path)
input = {
"resourceType": "elasticmapreduce",
"resource": "createCluster.sync",
"output": {
"SdkHttpMetadata": {
"HttpHeaders": {
"Content-Length": "1112",
"Content-Type": "application/x-amz-JSON-1.1",
"Date": "Mon, 25 Nov 2019 19:41:29 GMT",
"x-amzn-RequestId": "1234-5678-9012"
},
"HttpStatusCode": 200
},
"SdkResponseMetadata": {
"RequestId": "1234-5678-9012"
},
"ClusterId": "AKIAIOSFODNN7EXAMPLE"
}
}
result = state.format_result_selector(input)
result_final = state.format_result({"OtherDataFromInput": {}}, result)
assert expected_result == result_final
def test_format_result_returns_applied_result(result_path, expected_result):
state = State.parse({
"ResultPath": result_path,
})
result = state.format_result_selector("ok")
result = state.format_result({"guid": "123-456"}, result)
assert expected_result == result
def test_dictionary_with_no_type_defaults_to_task():
state = State.parse({
"InputPath": "$.first_input",
"ResultPath": "$.first_output",
"Resource": "MultiplierByTwo",
})
assert state.type == States.Task
def test_executes_wait_state(input, expected_output):
wait = State.parse({
"Type": "Wait",
"Seconds": 10,
"Next": "NextState",
})
next_state, output = wait.execute(input=input)
assert next_state == "NextState"
assert expected_output == output
def test_task_uses_resource_as_default_name_ahead_of_comment():
source = {
"Type": "Task",
"Resource": "arn:something",
"Comment": "this is doing something",
}
state = State.parse(source)
assert state.name == "arn:something"
def test_choice_state(example):
source = example("choice_state_x")["States"]["ChoiceStateX"]
state = State.parse(source)
assert isinstance(state, Choice)
assert isinstance(state.choices[0], ChoiceRule)
assert state.choices[0].operator
assert state.compile() == source
def test_suceed_state():
source = {
"Type": "Succeed",
}
state = State.parse(source)
assert isinstance(state, Succeed)
assert state.type == "Succeed"
assert state.compile() == source
def test_executes_fail_state():
fail = State.parse({
"Type": "Fail",
"Error": "ErrorA",
"Cause": "Kaiju attack",
})
# TODO No idea what should be the next state or output of fail state.
# TODO Should it just raise an exception?
next_state, output = fail.execute(input=input)
assert next_state is None
def test_fail_state():
source = {
"Type": "Fail",
"Error": "ErrorA",
"Cause": "Kaiju attack",
}
state = State.parse(source)
assert isinstance(state, Fail)
assert state.compile() == source
def test_wait_state(extras):
source = {
"Type": "Wait",
"Next": "NextState",
**extras,
}
state = State.parse(source)
assert isinstance(state, Wait)
assert state.type == "Wait"
assert state.next == "NextState"
assert state.compile() == source
def test_task_state():
source = {
"Comment": "Task State example",
"Type": "Task",
"Resource": "arn:aws:swf:us-east-1:123456789012:task:HelloWorld",
"Next": "NextState",
"TimeoutSeconds": 300,
"HeartbeatSeconds": 60
}
state = State.parse(source)
assert isinstance(state, Task)
assert state.compile() == source
def test_pass_state():
source = {
"Type": "Pass",
"Result": {
"x-datum": 0.381018,
"y-datum": 622.2269926397355
},
"ResultPath": "$.coords",
"Next": "End",
}
state = State.parse(source)
assert isinstance(state, Pass)
assert state.result_path == "$.coords"
assert state.compile() == source
def test_executes_simple_choice(input, expected):
choice = State.parse({
"Type":
"Choice",
"Choices": [{
"Variable": "$.status",
"StringEquals": "FAILED",
"Next": "Job Failed",
}, {
"Variable": "$.status",
"StringEquals": "SUCCEEDED",
"Next": "Consolidator Output",
}],
"Default":
"Wait X Seconds",
})
returned = choice.execute(input=input,
resource_resolver=jsp_resource_resolver)
assert returned == expected
def test_parallel_state():
source = {
"Type":
"Parallel",
"Branches": [
{
"StartAt": "LookupAddress",
"States": {
"LookupAddress": {
"Type": "Task",
"Resource":
"arn:aws:lambda:us-east-1:123456789012:function:AddressFinder",
"End": True,
},
},
},
{
"StartAt": "LookupPhone",
"States": {
"LookupPhone": {
"Type": "Task",
"Resource":
"arn:aws:lambda:us-east-1:123456789012:function:PhoneFinder",
"End": True,
},
},
},
],
"Next":
"NextState",
}
state = State.parse(source)
assert isinstance(state, Parallel)
assert isinstance(state.branches[0], Sequence)
assert isinstance(state.branches[0].start_at_state, Task)
assert json.dumps(state.compile(),
sort_keys=True) == json.dumps(source, sort_keys=True)
def test_executes_mipres_input(example):
test = [{
"InputPath": "$",
"Parameters": {
"staticValue": "Just a string",
"page[*]": {
"staticValue": "Just a string",
"error_count.$": "$.page[*].error_count",
"page.$": "$.page[*].page",
"TAG.$": "$.page[*].status.mipres_result.MIPRES_TAG"
}
}
}, {
'staticValue':
'Just a string',
'page': [{
'error_count': 1,
'page': '2'
}, {
'error_count': 1,
'page': '3'
}, {
'error_count': 0,
'page': '1',
'TAG': 'MiPres'
}, {
'error_count': 1,
'page': '4'
}]
}]
result_path = test[0]
expected_result = test[1]
mipres_out = example("mipres.out")
state = State.parse(result_path)
result = state.get_input(mipres_out)
assert expected_result == result
def test_format_input_all_applied_result(result_path, expected_result):
state = State.parse(result_path)
input = {
"version": 4,
"library": {
"movies": [{
"genre": "crime",
"director": "Quentin Tarantino",
"title": "Reservoir Dogs",
"year": 1992
}, {
"genre": "action",
"director": "Brian De Palma",
"title": "Mission: Impossible",
"year": 1996,
"staring": ["Tom Cruise"]
}],
"metadata": {
"lastUpdated": "2020-05-27T08:00:00.000Z"
}
}
}
result = state.get_input(input)
assert expected_result == result
def test_format_result_all_applied_result(result_path, expected_result):
state = State.parse(result_path)
output = {
"ExecutedVersion": "$LATEST",
"Payload": {
"statusCode": "200",
"body": "hello, world!"
},
"SdkHttpMetadata": {
"HttpHeaders": {
"Connection":
"keep-alive",
"Content-Length":
"43",
"Content-Type":
"application/json",
"Date":
"Thu, 16 Apr 2020 17:58:15 GMT",
"X-Amz-Executed-Version":
"$LATEST",
"x-amzn-Remapped-Content-Length":
"0",
"x-amzn-RequestId":
"88fba57b-adbe-467f-abf4-daca36fc9028",
"X-Amzn-Trace-Id":
"root=1-5e989cb6-90039fd8971196666b022b62;sampled=0"
},
"HttpStatusCode": 200
},
"SdkResponseMetadata": {
"RequestId": "88fba57b-adbe-467f-abf4-daca36fc9028"
},
"StatusCode": 200
}
next_state, result = state.get_output({"OtherDataFromInput": {}}, output)
assert expected_result == result
def test_format_state_output_returns_filtered_output(output_path,
expected_state_output):
state = State.parse({"OutputPath": output_path})
state_output = state.format_state_output({"guid": "123-456"})
assert expected_state_output == state_output
def test_format_resource_input_returns_filtered_input(input_path,
expected_resource_input):
state = State.parse({"InputPath": input_path})
resource_input = state.format_state_input({"guid": "123-456"})
assert expected_resource_input == resource_input
def test_task_state_compiled_always_has_next_or_end():
task = State.parse({
"Type": "Task",
}).compile()
assert task.get("Next") or task["End"] is True