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import os
import stat
import unittest
from os import remove
from stat import ST_SIZE
import docker
import requests
from . import common, constant
client = common.get_client()
class TestImages(unittest.TestCase):
def setUp(self):
super().setUp()
common.restore_image_from_cache(self)
def tearDown(self):
common.remove_all_images()
return super().tearDown()
@classmethod
def setUpClass(cls):
super().setUpClass()
common.enable_sock(cls)
@classmethod
def tearDownClass(cls):
common.terminate_connection(cls)
common.flush_image_cache(cls)
return super().tearDownClass()
# Inspect Image
def test_inspect_image(self):
# Check for error with wrong image name
with self.assertRaises(requests.HTTPError):
client.inspect_image("dummy")
alpine_image = client.inspect_image(constant.ALPINE)
self.assertIn(constant.ALPINE, alpine_image["RepoTags"])
# Tag Image
# Validates if invalid image name is given a bad response is encountered.
def test_tag_invalid_image(self):
with self.assertRaises(requests.HTTPError):
client.tag("dummy", "demo")
# Validates if the image is tagged successfully.
def test_tag_valid_image(self):
client.tag(constant.ALPINE, "demo", constant.ALPINE_SHORTNAME)
alpine_image = client.inspect_image(constant.ALPINE)
for x in alpine_image["RepoTags"]:
if ("demo:alpine" in x):
self.assertTrue
self.assertFalse
# Validates if name updates when the image is retagged.
@unittest.skip("dosent work now")
def test_retag_valid_image(self):
client.tag(constant.ALPINE_SHORTNAME, "demo", "rename")
alpine_image = client.inspect_image(constant.ALPINE)
self.assertNotIn("demo:test", alpine_image["RepoTags"])
# List Image
# List All Images
def test_list_images(self):
allImages = client.images()
self.assertEqual(len(allImages), 1)
# Add more images
client.pull(constant.BB)
allImages = client.images()
self.assertEqual(len(allImages), 2)
# List images with filter
filters = {'reference': 'alpine'}
allImages = client.images(filters=filters)
self.assertEqual(len(allImages), 1)
# Search Image
def test_search_image(self):
response = client.search("alpine")
for i in response:
# Alpine found
if "docker.io/library/alpine" in i["Name"]:
self.assertTrue
self.assertFalse
# Image Exist (No docker-py support yet)
# Remove Image
def test_remove_image(self):
# Check for error with wrong image name
with self.assertRaises(requests.HTTPError):
client.remove_image("dummy")
allImages = client.images()
self.assertEqual(len(allImages), 1)
alpine_image = client.inspect_image(constant.ALPINE)
client.remove_image(alpine_image)
allImages = client.images()
self.assertEqual(len(allImages), 0)
# Image History
def test_image_history(self):
# Check for error with wrong image name
with self.assertRaises(requests.HTTPError):
client.history("dummy")
imageHistory = client.history(constant.ALPINE)
alpine_image = client.inspect_image(constant.ALPINE)
for h in imageHistory:
if h["Id"] in alpine_image["Id"]:
self.assertTrue
self.assertFalse
# Prune Image (No docker-py support yet)
def test_get_image_dummy(self):
# FIXME: seems to be an error in the library
self.skipTest("Documentation and library do not match")
# Check for error with wrong image name
with self.assertRaises(docker.errors.ImageNotFound):
client.get_image("dummy")
# Export Image
def test_export_image(self):
client.pull(constant.BB)
if not os.path.exists(constant.ImageCacheDir):
os.makedirs(constant.ImageCacheDir)
image = client.get_image(constant.BB)
file = os.path.join(constant.ImageCacheDir, "busybox.tar")
tarball = open(file, mode="wb")
for frame in image:
tarball.write(frame)
tarball.close()
sz = os.path.getsize(file)
self.assertGreater(sz, 0)
# Import|Load Image
def test_import_image(self):
allImages = client.images()
self.assertEqual(len(allImages), 1)
file = os.path.join(constant.ImageCacheDir, "alpine.tar")
client.import_image_from_file(filename=file)
allImages = client.images()
self.assertEqual(len(allImages), 2)
if __name__ == '__main__':
# Setup temporary space
unittest.main()
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