def test_set_dependencies_none(self):
couler.set_dependencies(lambda: job_a(message="A"), dependencies=None)
couler.set_dependencies(lambda: job_b(message="B"), dependencies=["A"])
couler.set_dependencies(lambda: job_c(message="C"), dependencies=None)
pyaml.dump(couler.workflow_yaml())
wf_tree = couler.workflow_yaml()
tasks = wf_tree["spec"]["templates"][0]["dag"]["tasks"]
assert_deps = {"A": None, "B": ["A"], "C": None}
self.assertEqual(len(tasks), 3)
for task in tasks:
assert_dep = assert_deps[task["name"]]
self.assertEqual(task.get("dependencies"), assert_dep)
def test_workflow_service_account(self):
self.assertIsNone(couler.workflow.service_account)
flip_coin()
self.assertNotIn("serviceAccountName", couler.workflow_yaml()["spec"])
couler.config_workflow(service_account="test-serviceaccount")
self.assertEqual(couler.workflow.service_account,
"test-serviceaccount")
self.assertEqual(
couler.workflow_yaml()["spec"]["serviceAccountName"],
"test-serviceaccount",
)
couler._cleanup()
self.assertIsNone(couler.workflow.service_account)
def test_run_container_with_workflow_volume(self):
pvc = VolumeClaimTemplate("workdir")
volume_mount = VolumeMount("workdir", "/mnt/vol")
couler.create_workflow_volume(pvc)
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
volume_mounts=[volume_mount],
)
volume_mount = VolumeMount("workdir", "/mnt/vol")
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
volume_mounts=[volume_mount],
)
wf = couler.workflow_yaml()
self.assertEqual(len(wf["spec"]["volumeClaimTemplates"]), 1)
self.assertEqual(wf["spec"]["volumeClaimTemplates"][0], pvc.to_dict())
self.assertEqual(
wf["spec"]["templates"][1]["container"]["volumeMounts"][0],
volume_mount.to_dict(),
)
couler._cleanup()
def test_run_container_env(self):
self.run_a_container()
workflow = couler.workflow_yaml()
checked = False
for template in workflow["spec"]["templates"]:
if template["name"] == "run-a-container":
checked = True
container = template["container"]
self.assertEqual(len(container), 3)
self.assertEqual(container["image"], "python:3.6")
self.assertEqual(container["command"],
["bash", "-c", "echo ${MESSAGE}"])
self.assertEqual(len(container["env"]), len(self.envs) + 2)
for env in container["env"]:
if env["name"] == "NVIDIA_VISIBLE_DEVICES":
self.assertEqual(env["value"], "")
elif env["name"] == "NVIDIA_DRIVER_CAPABILITIES":
self.assertEqual(env["value"], "")
elif env["name"] == "str_env":
self.assertEqual(env["value"], self.envs["str_env"])
elif env["name"] == "bool_env":
self.assertEqual(env["value"],
"'%s'" % self.envs["bool_env"])
elif env["name"] == "num_env":
self.assertEqual(env["value"],
"%s" % self.envs["num_env"])
self.assertTrue(checked)
def test_run_script_env(self):
self.run_a_script()
workflow = couler.workflow_yaml()
checked = False
for template in workflow["spec"]["templates"]:
if template["name"] == "run-a-script":
checked = True
script = template["script"]
self.assertEqual(len(script), 4)
self.assertEqual(script["image"], "python:3.6")
self.assertEqual(script["command"], ["python"])
self.assertEqual(len(script["env"]), len(self.envs) + 2)
for env in script["env"]:
if env["name"] == "NVIDIA_VISIBLE_DEVICES":
self.assertEqual(env["value"], "")
elif env["name"] == "NVIDIA_DRIVER_CAPABILITIES":
self.assertEqual(env["value"], "")
elif env["name"] == "str_env":
self.assertEqual(env["value"], self.envs["str_env"])
elif env["name"] == "bool_env":
self.assertEqual(env["value"],
"'%s'" % self.envs["bool_env"])
elif env["name"] == "num_env":
self.assertEqual(env["value"],
"%s" % self.envs["num_env"])
self.assertTrue(checked)
def test_run_gpu_script_env(self):
self.run_a_gpu_script()
workflow = couler.workflow_yaml()
checked = False
for template in workflow["spec"]["templates"]:
if template["name"] == "run-a-gpu-script":
checked = True
script = template["script"]
self.assertEqual(len(script), 5)
self.assertEqual(script["image"], "python:3.6")
self.assertEqual(script["command"], ["python"])
self.assertEqual(len(script["env"]), len(self.envs))
for env in script["env"]:
if env["name"] not in self.envs:
raise AssertionError("Unrecognized env variable %s" %
env["name"])
elif env["name"] == "str_env":
self.assertEqual(env["value"], self.envs["str_env"])
elif env["name"] == "bool_env":
self.assertEqual(env["value"],
"'%s'" % self.envs["bool_env"])
elif env["name"] == "num_env":
self.assertEqual(env["value"],
"%s" % self.envs["num_env"])
self.assertTrue(checked)
def test_workflow_name_salt_applies(self):
couler.config_defaults(name_salter=lambda name: "%s-salted" % name)
couler.config_workflow(name="test_name_salter_applies")
ret = couler.workflow_yaml()
self.assertEqual(
ret["metadata"]["name"], "test_name_salter_applies-salted"
)
def test_run_gpu_container_env(self):
self.run_a_gpu_container()
workflow = couler.workflow_yaml()
checked = False
for template in workflow["spec"]["templates"]:
if template["name"] == "run-a-gpu-container":
checked = True
container = template["container"]
self.assertEqual(len(container), 4)
self.assertEqual(container["image"], "python:3.6")
self.assertEqual(container["command"],
["bash", "-c", "echo ${MESSAGE}"])
self.assertEqual(len(container["env"]), len(self.envs))
for env in container["env"]:
if env["name"] not in self.envs:
raise AssertionError("Unrecognized env variable %s" %
env["name"])
elif env["name"] == "str_env":
self.assertEqual(env["value"], self.envs["str_env"])
elif env["name"] == "bool_env":
self.assertEqual(env["value"],
"'%s'" % self.envs["bool_env"])
elif env["name"] == "num_env":
self.assertEqual(env["value"],
"%s" % self.envs["num_env"])
self.assertTrue(checked)
def test_map_function_callable(self):
test_paras = ["t1", "t2", "t3"]
callable_cls = self.create_callable_cls(lambda x: consume(x))
instance = callable_cls()
func_names = ["a", "b", "c", "self"]
for func_name in func_names:
if func_name == "self":
couler.map(instance, test_paras)
else:
couler.map(getattr(instance, func_name), test_paras)
expected_with_items = [
{
"para-consume-0": "t1"
},
{
"para-consume-0": "t2"
},
{
"para-consume-0": "t3"
},
]
wf = couler.workflow_yaml()
templates = wf["spec"]["templates"]
steps_template = templates[0]
map_step = steps_template["steps"][0][0]
self.assertListEqual(map_step["withItems"], expected_with_items)
couler._cleanup()
def test_resource_setup(self):
couler.run_container(
image="docker/whalesay",
command=["cowsay"],
args=["resource test"],
resources={"cpu": "1", "memory": "100Mi"},
)
# Because test environment between local and CI is different,
# we can not compare the YAML directly.
_test_data_dir = "test_data"
test_data_dir = os.path.join(os.path.dirname(__file__), _test_data_dir)
with open(
os.path.join(test_data_dir, "resource_config_golden.yaml"), "r"
) as f:
expected = yaml.safe_load(f)
output = yaml.safe_load(
pyaml.dump(couler.workflow_yaml(), string_val_style="plain")
)
_resources = output["spec"]["templates"][1]["container"]["resources"]
_expected_resources = expected["spec"]["templates"][1]["container"][
"resources"
]
self.assertEqual(_resources, _expected_resources)
couler._cleanup()
def test_run_container_with_dependency_implicit_params_passing(self):
output_path = "/tmp/hello_world.txt"
def producer(step_name):
output_place = couler.create_parameter_artifact(path=output_path,
is_global=True)
return couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world > %s" % output_place.path],
command=["bash", "-c"],
output=output_place,
step_name=step_name,
)
def consumer(step_name):
couler.run_container(
image="docker/whalesay:latest",
command=["cowsay"],
step_name=step_name,
)
couler.set_dependencies(lambda: producer(step_name="A"),
dependencies=None)
couler.set_dependencies(lambda: consumer(step_name="B"),
dependencies=["A"])
wf = couler.workflow_yaml()
template = wf["spec"]["templates"][1]
# Check input parameters for step A
self.assertEqual(template["inputs"]["parameters"], [{
"name": "para-A-0"
}])
# Check output parameters for step A
self.assertEqual(
output_path,
template["outputs"]["parameters"][0]["valueFrom"]["path"],
)
self.assertEqual(
"global-" + template["outputs"]["parameters"][0]["name"],
template["outputs"]["parameters"][0]["globalName"],
)
params = wf["spec"]["templates"][0]["dag"]["tasks"][1]["arguments"][
"parameters"][0]
self.assertEqual(params["name"], "para-B-0")
self.assertTrue(params["value"] in [
# Note that the "output-id-92" case is needed for
# Python 3.8.
'"{{workflow.outputs.parameters.output-id-113}}"',
'"{{workflow.outputs.parameters.output-id-114}}"',
])
# Check input parameters for step B
template = wf["spec"]["templates"][2]
self.assertEqual(template["inputs"]["parameters"], [{
"name": "para-B-0"
}])
couler._cleanup()
def test_raise(self):
with self.assertRaises(ValueError):
def some_raise():
raise ValueError("test this")
couler.set_exit_handler(couler.WFStatus.Failed, some_raise)
couler._cleanup()
couler.set_dependencies(lambda: job_a(message="A"), dependencies=None)
content = pyaml.dump(couler.workflow_yaml())
self.assertNotIn("onExit", content)
def test_workflow_config(self):
flip_coin()
tails()
couler.config_workflow(
name="test-workflow", user_id="88888888", time_to_clean=100
)
wf = couler.workflow_yaml()
expected_meta = {
"name": "test-workflow",
# "labels": {"couler_job_user": "******"},
}
self.assertEqual(wf["metadata"], expected_meta)
def test_map_function(self):
test_paras = ["t1", "t2", "t3"]
couler.map(lambda x: consume(x), test_paras)
wf = couler.workflow_yaml()
templates = wf["spec"]["templates"]
self.assertEqual(len(templates), 2)
# We should have a 'consume' template
consume_template = templates[1]
self.assertEqual(consume_template["name"], "consume")
# Check input parameters
expected_paras = [{"name": "para-consume-0"}]
self.assertListEqual(consume_template["inputs"]["parameters"],
expected_paras)
# Check container
expected_container = {
"image": "docker/whalesay:latest",
"command": ["cowsay"],
"args": ['"{{inputs.parameters.para-consume-0}}"'],
}
self.assertDictEqual(consume_template["container"], expected_container)
# Check the steps template
steps_template = templates[0]
self.assertTrue(steps_template["name"] in ["pytest", "runpy"])
self.assertEqual(len(steps_template["steps"]), 1)
self.assertEqual(len(steps_template["steps"][0]), 1)
map_step = steps_template["steps"][0][0]
self.assertIn("consume", map_step["name"])
self.assertEqual(map_step["template"], "consume")
# Check arguments
expected_paras = [{
"name": "para-consume-0",
"value": '"{{item.para-consume-0}}"'
}]
self.assertListEqual(map_step["arguments"]["parameters"],
expected_paras)
# Check withItems
expected_with_items = [
{
"para-consume-0": "t1"
},
{
"para-consume-0": "t2"
},
{
"para-consume-0": "t3"
},
]
self.assertListEqual(map_step["withItems"], expected_with_items)
couler._cleanup()
def test_set_dependencies_with_exit_handler(self):
def producer():
return couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
)
def consumer():
return couler.run_container(
image="docker/whalesay:latest",
command=["cowsay"],
step_name="B",
)
def exit_handler_succeeded():
return couler.run_container(
image="docker/whalesay:latest",
command=["cowsay"],
step_name="success-exit",
)
def exit_handler_failed():
return couler.run_container(
image="docker/whalesay:latest",
command=["cowsay"],
step_name="failure-exit",
)
couler.set_dependencies(lambda: producer(), dependencies=None)
couler.set_dependencies(lambda: consumer(), dependencies=["A"])
couler.set_exit_handler(couler.WFStatus.Succeeded,
exit_handler_succeeded)
couler.set_exit_handler(couler.WFStatus.Failed, exit_handler_failed)
wf = couler.workflow_yaml()
self.assertEqual(wf["spec"]["onExit"], "exit-handler")
expected_container_spec = (
"container",
OrderedDict([("image", "docker/whalesay:latest"),
("command", ["cowsay"])]),
)
self.assertEqual(
wf["spec"]["templates"][3],
OrderedDict([("name", "success-exit"), expected_container_spec]),
)
self.assertEqual(
wf["spec"]["templates"][4],
OrderedDict([("name", "failure-exit"), expected_container_spec]),
)
couler._cleanup()
def test_run_container_with_toleration(self):
toleration = Toleration("example-toleration", "Exists", "NoSchedule")
couler.add_toleration(toleration)
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
)
wf = couler.workflow_yaml()
self.assertEqual(wf["spec"]["tolerations"][0], toleration.to_dict())
couler._cleanup()
def test_set_dependencies_none_with_exit_handler(self):
couler.set_dependencies(lambda: job_a(message="A"), dependencies=None)
couler.set_dependencies(lambda: job_b(message="B"), dependencies=["A"])
def job_exit():
return couler.run_container(
image="docker/whalesay:latest",
command=["cowsay"],
step_name="C",
)
couler.set_exit_handler(couler.WFStatus.Failed, job_exit)
content = pyaml.dump(couler.workflow_yaml())
self.assertIn("{{workflow.status}} == Failed", content)
def test_cluster_config(self):
couler.config_workflow(cluster_config_file=os.path.join(
os.path.dirname(__file__), "test_data/dummy_cluster_config.py"))
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
)
wf = couler.workflow_yaml()
self.assertTrue(wf["spec"]["hostNetwork"])
self.assertEqual(wf["spec"]["templates"][1]["tolerations"], [])
couler._cleanup()
def test_run_container_with_node_selector(self):
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
node_selector={"beta.kubernetes.io/arch": "amd64"},
)
wf = couler.workflow_yaml()
self.assertEqual(
wf["spec"]["templates"][1]["nodeSelector"],
{"beta.kubernetes.io/arch": "amd64"},
)
couler._cleanup()
def check_argo_yaml(self, expected_fn):
test_data_dir = os.path.join(os.path.dirname(__file__), _test_data_dir)
with open(os.path.join(test_data_dir, expected_fn), "r") as f:
expected = yaml.safe_load(f)
output = yaml.safe_load(
pyaml.dump(couler.workflow_yaml(), string_val_style="plain"))
def dump(x):
x = re.sub(r"-[0-9]*", "-***",
json.dumps(self.mock_dict(x), indent=2))
return x
output_j, expected_j = dump(output), dump(expected)
self.maxDiff = None
self.assertEqual(output_j, expected_j)
def test_input_args_as_othertypes(self):
def whalesay(para_integer, para_boolean, para_float):
return couler.run_container(
image="docker/whalesay",
command=["cowsay"],
args=[para_integer, para_boolean, para_float],
)
whalesay(1, True, 1.1)
wf = couler.workflow_yaml()
parameters = wf["spec"]["templates"][0]["steps"][0][0]["arguments"][
"parameters"]
self.assertEqual(int(parameters[0]["value"].strip(" " "' ")), 1)
self.assertEqual(bool(parameters[1]["value"].strip(" " "' ")), True)
self.assertEqual(float(parameters[2]["value"].strip(" " "' ")), 1.1)
def test_set_dependencies_with_passing_artifact_implicitly(self):
default_path = "/mnt/t1.txt"
def producer(step_name):
output_artifact = couler.create_oss_artifact(
default_path,
bucket="test-bucket/",
accesskey_id="abcde",
accesskey_secret="abc12345",
key="osspath/t1",
endpoint="xyz.com",
)
outputs = couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world > %s" % output_artifact.path],
command=["bash", "-c"],
output=output_artifact,
step_name=step_name,
)
return outputs
def consumer(step_name):
# read the content from an OSS bucket
# inputs = couler.get_step_output(step_name="A")
couler.run_container(
image="docker/whalesay:latest",
args=["--test 1"],
command=[("cat %s" % default_path)],
step_name=step_name,
)
couler.set_dependencies(lambda: producer(step_name="A"),
dependencies=None)
couler.set_dependencies(lambda: consumer(step_name="B"),
dependencies=["A"])
wf = couler.workflow_yaml()
template = wf["spec"]["templates"][1]
artifact = template["outputs"]["artifacts"][0]
self._oss_check_helper(artifact)
template = wf["spec"]["templates"][2]
artifact = template["inputs"]["artifacts"][0]
self._oss_check_helper(artifact)
couler._cleanup()
def verify_concurrent_step(self, yaml_file_name):
_test_data_dir = "test_data"
test_data_dir = os.path.join(os.path.dirname(__file__), _test_data_dir)
with open(os.path.join(test_data_dir, yaml_file_name), "r") as f:
expected = yaml.safe_load(f)
output = yaml.safe_load(
pyaml.dump(couler.workflow_yaml(), string_val_style="plain"))
# Because test environment between local and CI is different,
# we can not compare the YAML directly.
steps = output["spec"]["templates"][0]["steps"][0]
expected_steps = expected["spec"]["templates"][0]["steps"][0]
self.assertEqual(len(steps), len(expected_steps))
for index in range(len(steps)):
_step = steps[index]
_expected_step = expected_steps[index]
self.assertEqual(_step["template"], _expected_step["template"])
def test_run_container_with_image_pull_secret(self):
secret = ImagePullSecret("test-secret")
couler.add_image_pull_secret(secret)
secret1 = ImagePullSecret("test-secret1")
couler.add_image_pull_secret(secret1)
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
working_dir="/mnt/src",
)
wf = couler.workflow_yaml()
self.assertEqual(wf["spec"]["imagePullSecrets"][0], secret.to_dict())
self.assertEqual(wf["spec"]["imagePullSecrets"][1], secret1.to_dict())
couler._cleanup()
def test_run_container_with_volume(self):
volume = Volume("workdir", "my-existing-volume")
volume_mount = VolumeMount("workdir", "/mnt/vol")
couler.add_volume(volume)
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world"],
command=["bash", "-c"],
step_name="A",
volume_mounts=[volume_mount],
)
wf = couler.workflow_yaml()
self.assertEqual(wf["spec"]["volumes"][0], volume.to_dict())
self.assertEqual(
wf["spec"]["templates"][1]["container"]["volumeMounts"][0],
volume_mount.to_dict(),
)
couler._cleanup()
def test_run_container_with_dns(self):
dns_config = DnsConfig(
["10.1.0.1", "0.0.0.0"],
[DnsConfigOption("timeout", "1")],
["domain.google.com"],
)
couler.set_dns("None", dns_config)
wf = couler.workflow_yaml()
self.assertEqual(wf["spec"]["dnsPolicy"], "None")
self.assertEqual(len(wf["spec"]["dnsConfig"]["nameservers"]), 2)
self.assertEqual(wf["spec"]["dnsConfig"]["nameservers"][0], "10.1.0.1")
self.assertEqual(wf["spec"]["dnsConfig"]["nameservers"][1], "0.0.0.0")
self.assertEqual(len(wf["spec"]["dnsConfig"]["options"]), 1)
self.assertEqual(wf["spec"]["dnsConfig"]["options"][0]["name"],
"timeout")
self.assertEqual(wf["spec"]["dnsConfig"]["options"][0]["value"], "1")
self.assertEqual(len(wf["spec"]["dnsConfig"]["searches"]), 1)
self.assertEqual(wf["spec"]["dnsConfig"]["searches"][0],
"domain.google.com")
couler._cleanup()
def test_artifact_passing(self):
def producer():
output_artifact = couler.create_oss_artifact(
path="/mnt/t1.txt",
bucket="test-bucket/",
accesskey_id="abcde",
accesskey_secret="abc12345",
key="osspath/t1",
endpoint="xyz.com",
)
outputs = couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world > %s" % output_artifact.path],
command=["bash", "-c"],
output=output_artifact,
)
return outputs
def consumer(inputs):
# read the content from an OSS bucket
couler.run_container(
image="docker/whalesay:latest",
args=inputs,
command=[("cat %s" % inputs[0].path)],
)
outputs = producer()
consumer(outputs)
wf = couler.workflow_yaml()
template = wf["spec"]["templates"][1]
artifact = template["outputs"]["artifacts"][0]
self.assertEqual(len(template["outputs"]["artifacts"]), 1)
self._oss_check_helper(artifact)
template = wf["spec"]["templates"][2]
artifact = template["inputs"]["artifacts"][0]
self.assertEqual(len(template["inputs"]["artifacts"]), 1)
self._oss_check_helper(artifact)
couler._cleanup()
def test_artifact_passing_script(self):
def producer():
output_artifact = couler.create_local_artifact(path="/mnt/t1.txt")
outputs = couler.run_script(
image="docker/whalesay:latest",
args=["echo -n hello world > %s" % output_artifact.path],
command=["bash", "-c"],
output=output_artifact,
source="sadfa\nasdf",
step_name="producer",
)
return outputs
def consumer(inputs):
# read the content from local artifact
couler.run_script(
image="docker/whalesay:latest",
args=inputs,
command=[("cat %s" % inputs[0].path)],
source="sadfa\nasdf",
)
outputs = couler.set_dependencies(lambda: producer(),
dependencies=None)
couler.set_dependencies(lambda: consumer(outputs),
dependencies=["producer"])
wf = couler.workflow_yaml()
dag = wf["spec"]["templates"][0]["dag"]
self.assertEqual(len(dag["tasks"][1]["arguments"]["artifacts"]), 1)
self.assertIsInstance(
dag["tasks"][1]["arguments"]["artifacts"][0]["from"], str)
self.assertIsInstance(
dag["tasks"][1]["arguments"]["artifacts"][0]["name"], str)
template = wf["spec"]["templates"][1]
self.assertEqual(len(template["outputs"]["artifacts"]), 1)
template = wf["spec"]["templates"][2]
self.assertEqual(len(template["inputs"]["artifacts"]), 1)
self.assertNotIn("args", template)
def test_output_s3_artifact(self):
# the content of local file would be uploaded to OSS
output_artifact = couler.create_s3_artifact(
path="/mnt/t1.txt",
bucket="test-bucket/",
accesskey_id="abcde",
accesskey_secret="abc12345",
key="s3path/t1",
endpoint="xyz.com",
)
couler.run_container(
image="docker/whalesay:latest",
args=["echo -n hello world > %s" % output_artifact.path],
command=["bash", "-c"],
output=output_artifact,
)
wf = couler.workflow_yaml()
template = wf["spec"]["templates"][1]
artifact = template["outputs"]["artifacts"][0]
self._s3_check_helper(artifact)
couler._cleanup()
def test_katib_with_xgboost_training(self):
katib.run(
tuning_params=[
{
"name": "max_depth",
"type": "int",
"range": [2, 10]
},
{
"name": "num_round",
"type": "int",
"range": [50, 100]
},
],
objective={
"type": "maximize",
"goal": 1.01,
"metric_name": "accuracy",
},
success_condition="status.trialsSucceeded > 4",
failure_condition="status.trialsFailed > 3",
algorithm="random",
raw_template=xgboost_mainifest_template,
parallel_trial_count=4,
max_trial_count=16,
max_failed_trial_count=3,
)
wf = couler.workflow_yaml()
self.assertEqual(len(wf["spec"]["templates"]), 2)
# Check steps template
template0 = wf["spec"]["templates"][0]
self.assertEqual(len(template0["steps"]), 1)
self.assertEqual(len(template0["steps"][0]), 1)
# Check train template
template1 = wf["spec"]["templates"][1]
self.assertTrue(template1["name"] in ["run", "test-run-python-script"])