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import itertools
import os
import unittest
from test.podman_testcase import PodmanTestCase
import podman
class TestImages(PodmanTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
@classmethod
def tearDownClass(cls):
super().tearDownClass()
def setUp(self):
self.tmpdir = os.environ['TMPDIR']
self.host = os.environ['PODMAN_HOST']
self.pclient = podman.Client(self.host)
self.images = self.loadCache()
def tearDown(self):
pass
def loadCache(self):
with podman.Client(self.host) as pclient:
self.images = list(pclient.images.list())
self.alpine_image = next(
iter([
i for i in self.images
if 'docker.io/library/alpine:latest' in i['repoTags']
] or []), None)
return self.images
def test_list(self):
actual = self.loadCache()
self.assertGreaterEqual(len(actual), 2)
self.assertIsNotNone(self.alpine_image)
def test_build(self):
with self.assertRaisesNotImplemented():
self.pclient.images.build()
def test_create(self):
with self.assertRaisesNotImplemented():
self.pclient.images.create()
def test_export(self):
path = os.path.join(self.tmpdir, 'alpine_export.tar')
target = 'oci-archive:{}:latest'.format(path)
actual = self.alpine_image.export(target, False)
self.assertTrue(actual)
self.assertTrue(os.path.isfile(path))
def test_history(self):
count = 0
for record in self.alpine_image.history():
count += 1
self.assertEqual(record.id, self.alpine_image.id)
self.assertGreater(count, 0)
def test_inspect(self):
actual = self.alpine_image.inspect()
self.assertEqual(actual.id, self.alpine_image.id)
def test_push(self):
path = '{}/alpine_push'.format(self.tmpdir)
target = 'dir:{}'.format(path)
self.alpine_image.push(target)
self.assertTrue(os.path.isfile(os.path.join(path, 'manifest.json')))
self.assertTrue(os.path.isfile(os.path.join(path, 'version')))
def test_tag(self):
self.assertEqual(self.alpine_image.id,
self.alpine_image.tag('alpine:fubar'))
self.loadCache()
self.assertIn('alpine:fubar', self.alpine_image.repoTags)
def test_remove(self):
before = self.loadCache()
# assertRaises doesn't follow the import name :(
with self.assertRaises(podman.ErrorOccurred):
self.alpine_image.remove()
# TODO: remove this block once force=True works
with podman.Client(self.host) as pclient:
for ctnr in pclient.containers.list():
if 'alpine' in ctnr.image:
ctnr.stop()
ctnr.remove()
actual = self.alpine_image.remove(force=True)
self.assertEqual(self.alpine_image.id, actual)
after = self.loadCache()
self.assertLess(len(after), len(before))
TestImages.setUpClass()
self.loadCache()
def test_import_delete_unused(self):
before = self.loadCache()
# create unused image, so we have something to delete
source = os.path.join(self.tmpdir, 'alpine_gold.tar')
new_img = self.pclient.images.import_image(source, 'alpine2:latest',
'unittest.test_import')
after = self.loadCache()
self.assertEqual(len(before) + 1, len(after))
self.assertIsNotNone(
next(iter([i for i in after if new_img in i['id']] or []), None))
actual = self.pclient.images.delete_unused()
self.assertIn(new_img, actual)
after = self.loadCache()
self.assertGreaterEqual(len(before), len(after))
TestImages.setUpClass()
self.loadCache()
def test_pull(self):
before = self.loadCache()
actual = self.pclient.images.pull('prom/busybox:latest')
after = self.loadCache()
self.assertEqual(len(before) + 1, len(after))
self.assertIsNotNone(
next(iter([i for i in after if actual in i['id']] or []), None))
def test_search(self):
actual = self.pclient.images.search('alpine', 25)
names, lengths = itertools.tee(actual)
for img in names:
self.assertIn('alpine', img['name'])
self.assertTrue(0 < len(list(lengths)) <= 25)
if __name__ == '__main__':
unittest.main()
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