test_compute_steps.py

# Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License").
# You may not use this file except in compliance with the License.
# A copy of the License is located at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# or in the "license" file accompanying this file. This file is distributed 
# on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 
# express or implied. See the License for the specific language governing 
# permissions and limitations under the License.
from __future__ import absolute_import

import pytest
import boto3

from unittest.mock import patch
from stepfunctions.steps.compute import LambdaStep, GlueStartJobRunStep, BatchSubmitJobStep, EcsRunTaskStep
from stepfunctions.steps.integration_resources import IntegrationPattern


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
def test_lambda_step_creation():
    step = LambdaStep('Echo')

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::lambda:invoke',
        'End': True
    }

    step = LambdaStep('lambda', wait_for_callback=True, parameters={
        'Payload': {
            'model.$': '$.new_model',
            'token.$': '$$.Task.Token'
        }
    })

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::lambda:invoke.waitForTaskToken',
        'Parameters': {
            'Payload': {  
                'model.$': '$.new_model',
                'token.$': '$$.Task.Token'
            },
        },
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
def test_glue_start_job_run_step_creation():
    step = GlueStartJobRunStep('Glue Job', wait_for_completion=False)

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::glue:startJobRun',
        'End': True
    }

    step = GlueStartJobRunStep('Glue Job', parameters={
        'JobName': 'Job'
    })

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::glue:startJobRun.sync',
        'Parameters': {
            'JobName': 'Job',
        },
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
def test_batch_submit_job_step_creation():
    step = BatchSubmitJobStep('Batch Job', wait_for_completion=False)

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::batch:submitJob',
        'End': True
    }

    step = BatchSubmitJobStep('Batch Job', parameters={
        'JobName': 'Job',
        'JobQueue': 'JobQueue'
    })

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::batch:submitJob.sync',
        'Parameters': {
            'JobName': 'Job',
            'JobQueue': 'JobQueue'
        },
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
@pytest.mark.parametrize(
    ("task_kwargs",),
    [
        ({},),
        ({
            "integration_pattern": IntegrationPattern.WaitForCompletion,
            "wait_for_completion": False,
        },),
    ]
)
def test_ecs_run_task_with_wait_for_completion(task_kwargs):
    step = EcsRunTaskStep('ECS Job', **task_kwargs)

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::ecs:runTask.sync',
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
@pytest.mark.parametrize(
    ("task_kwargs",),
    [
        ({
            "integration_pattern": IntegrationPattern.WaitForTaskToken,
            "wait_for_completion": False,
        },),
    ]
)
def test_ecs_run_task_with_wait_for_task_token(task_kwargs):
    step = EcsRunTaskStep('ECS Job', **task_kwargs)

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::ecs:runTask.waitForTaskToken',
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
@pytest.mark.parametrize(
    ("task_kwargs",),
    [
        ({
            "wait_for_completion": False,
        },),
        ({
            "integration_pattern": IntegrationPattern.CallAndContinue,
            "wait_for_completion": False,
        },)
    ]
)
def test_ecs_run_task_with_call_and_continue(task_kwargs):
    step = EcsRunTaskStep('ECS Job', **task_kwargs)

    assert step.to_dict() == {
        'Type': 'Task',
        'Resource': 'arn:aws:states:::ecs:runTask',
        'End': True
    }


@patch.object(boto3.session.Session, 'region_name', 'us-east-1')
def test_ecs_run_task_with_conflicting_arguments():
    with pytest.raises(ValueError):
        step = EcsRunTaskStep('Ecs Job',
                              wait_for_completion=True,
                              integration_pattern=IntegrationPattern.WaitForTaskToken)