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import subprocess
import sys
import time
import unittest
from docker import APIClient, errors
from test.python.docker import Podman, common, constant
class TestContainers(unittest.TestCase):
podman = None # initialized podman configuration for tests
service = None # podman service instance
topContainerId = ""
def setUp(self):
super().setUp()
self.client = APIClient(base_url="tcp://127.0.0.1:8080", timeout=15)
TestContainers.podman.restore_image_from_cache(self.client)
TestContainers.topContainerId = common.run_top_container(self.client)
self.assertIsNotNone(TestContainers.topContainerId)
def tearDown(self):
common.remove_all_containers(self.client)
common.remove_all_images(self.client)
self.client.close()
return super().tearDown()
@classmethod
def setUpClass(cls):
super().setUpClass()
TestContainers.podman = Podman()
TestContainers.service = TestContainers.podman.open(
"system", "service", "tcp:127.0.0.1:8080", "--time=0"
)
# give the service some time to be ready...
time.sleep(2)
rc = TestContainers.service.poll()
if rc is not None:
raise subprocess.CalledProcessError(rc, "podman system service")
@classmethod
def tearDownClass(cls):
TestContainers.service.terminate()
stdout, stderr = TestContainers.service.communicate(timeout=0.5)
if stdout:
sys.stdout.write("\nContainers Service Stdout:\n" + stdout.decode("utf-8"))
if stderr:
sys.stderr.write("\nContainers Service Stderr:\n" + stderr.decode("utf-8"))
TestContainers.podman.tear_down()
return super().tearDownClass()
def test_inspect_container(self):
# Inspect bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.inspect_container("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Inspect valid container by Id
container = self.client.inspect_container(TestContainers.topContainerId)
self.assertIn("top", container["Name"])
# Inspect valid container by name
container = self.client.inspect_container("top")
self.assertIn(TestContainers.topContainerId, container["Id"])
def test_create_container(self):
# Run a container with detach mode
container = self.client.create_container(image="alpine", detach=True)
self.assertEqual(len(container), 2)
def test_start_container(self):
# Start bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.start("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Podman docs says it should give a 304 but returns with no response
# # Start a already started container should return 304
# response = self.client.start(container=TestContainers.topContainerId)
# self.assertEqual(error.exception.response.status_code, 304)
# Create a new container and validate the count
self.client.create_container(image=constant.ALPINE, name="container2")
containers = self.client.containers(quiet=True, all=True)
self.assertEqual(len(containers), 2)
def test_stop_container(self):
# Stop bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.stop("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Validate the container state
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "running")
# Stop a running container and validate the state
self.client.stop(TestContainers.topContainerId)
container = self.client.inspect_container("top")
self.assertIn(
container["State"]["Status"],
"stopped exited",
)
def test_restart_container(self):
# Restart bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.restart("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Validate the container state
self.client.stop(TestContainers.topContainerId)
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "stopped")
# restart a running container and validate the state
self.client.restart(TestContainers.topContainerId)
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "running")
def test_remove_container(self):
# Remove bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.remove_container("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Remove container by ID with force
self.client.remove_container(TestContainers.topContainerId, force=True)
containers = self.client.containers()
self.assertEqual(len(containers), 0)
def test_remove_container_without_force(self):
# Validate current container count
containers = self.client.containers()
self.assertTrue(len(containers), 1)
# Remove running container should throw error
with self.assertRaises(errors.APIError) as error:
self.client.remove_container(TestContainers.topContainerId)
self.assertEqual(error.exception.response.status_code, 500)
# Remove container by ID with force
self.client.stop(TestContainers.topContainerId)
self.client.remove_container(TestContainers.topContainerId)
containers = self.client.containers()
self.assertEqual(len(containers), 0)
def test_pause_container(self):
# Pause bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.pause("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Validate the container state
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "running")
# Pause a running container and validate the state
self.client.pause(container["Id"])
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "paused")
def test_pause_stopped_container(self):
# Stop the container
self.client.stop(TestContainers.topContainerId)
# Pause exited container should trow error
with self.assertRaises(errors.APIError) as error:
self.client.pause(TestContainers.topContainerId)
self.assertEqual(error.exception.response.status_code, 500)
def test_unpause_container(self):
# Unpause bogus container
with self.assertRaises(errors.NotFound) as error:
self.client.unpause("dummy")
self.assertEqual(error.exception.response.status_code, 404)
# Validate the container state
self.client.pause(TestContainers.topContainerId)
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "paused")
# Pause a running container and validate the state
self.client.unpause(TestContainers.topContainerId)
container = self.client.inspect_container("top")
self.assertEqual(container["State"]["Status"], "running")
def test_list_container(self):
# Add container and validate the count
self.client.create_container(image="alpine", detach=True)
containers = self.client.containers(all=True)
self.assertEqual(len(containers), 2)
def test_filters(self):
self.skipTest("TODO Endpoint does not yet support filters")
# List container with filter by id
filters = {"id": TestContainers.topContainerId}
ctnrs = self.client.containers(all=True, filters=filters)
self.assertEqual(len(ctnrs), 1)
# List container with filter by name
filters = {"name": "top"}
ctnrs = self.client.containers(all=True, filters=filters)
self.assertEqual(len(ctnrs), 1)
def test_rename_container(self):
# rename bogus container
with self.assertRaises(errors.APIError) as error:
self.client.rename(container="dummy", name="newname")
self.assertEqual(error.exception.response.status_code, 404)
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