def test_update_desired_service_count(aws_client):
client = MagicMock()
aws_client.return_value = client
cluster = 'my_cluster'
service = 'my_service'
client.describe_clusters = MagicMock(
return_value={
'clusters': [{
'clusterArn': 'arn:aws:ecs:us-east-1::cluster/my_cluster',
'clusterName': 'my_cluster'
}]
}
)
client.describe_services = MagicMock(
return_value={
'services': [{
'serviceArn': 'arn:aws:ecs:us-east-1::service/my_service',
'serviceName': 'my_service'
}]
}
)
client.update_service = MagicMock(
return_value={
'service': {
'serviceArn': 'arn:aws:ecs:us-east-1::service/my_service',
'serviceName': 'my_service',
'desiredCount': 1
}
}
)
update_desired_count(
cluster=cluster, service=service, desired_count=1)
client.update_service.assert_called_with(
cluster=cluster, service=service, desiredCount=1)
def test_missing_service_argument_error():
with pytest.raises(TypeError) as x:
update_desired_count(
cluster='my_cluster', desired_count=0)
assert "required positional argument: 'service'" in str(x.value)
def test_no_arguments_error():
with pytest.raises(TypeError) as x:
update_desired_count()
assert 'missing 3 required positional arguments' in str(x.value)