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test_rhcos.py
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test_rhcos.py
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#!/usr/bin/env python3
import logging
import json
import unittest
import os
import yaml
from pathlib import Path
from unittest.mock import patch, MagicMock, Mock
from urllib.error import URLError
from doozerlib import rhcos
from doozerlib.model import Model
class MockRuntime(object):
def __init__(self, logger):
self.logger = logger
self.group_config = Model({})
def _urlopen_json_cm(mock_urlopen, content, rc=200):
# serializes content as json and has the urlopen context manager return it
cm = MagicMock()
cm.getcode.return_value = rc
cm.read.return_value = bytes(json.dumps(content), 'utf-8')
cm.__enter__.return_value = cm
mock_urlopen.return_value = cm
class TestRhcos(unittest.TestCase):
def setUp(self):
self.logger = MagicMock(spec=logging.Logger)
runtime = MockRuntime(self.logger)
koji_mock = Mock()
koji_mock.__enter__ = Mock()
koji_mock.__enter__.return_value = koji_mock
koji_mock.__exit__ = Mock()
runtime.pooled_koji_client_session = Mock()
runtime.pooled_koji_client_session.return_value = koji_mock
self.runtime = runtime
self.koji_mock = koji_mock
self.respath = Path(os.path.dirname(__file__), 'resources')
def tearDown(self):
pass
def test_get_primary_container_conf(self):
# default is same as it's always been
self.assertEqual("machine-os-content", rhcos.RHCOSBuildFinder(self.runtime, "4.6", "x86_64").get_primary_container_conf()["name"])
# but we can configure a different primary
self.runtime.group_config.rhcos = Model(dict(payload_tags=[dict(name="spam"), dict(name="eggs", primary=True)]))
self.assertEqual("eggs", rhcos.RHCOSBuildFinder(self.runtime, "4.6", "x86_64").get_primary_container_conf()["name"])
def test_release_url(self):
self.assertIn("4.6-s390x", rhcos.RHCOSBuildFinder(self.runtime, "4.6", "s390x").rhcos_release_url())
self.assertNotIn("x86_64", rhcos.RHCOSBuildFinder(self.runtime, "4.6", "x86_64").rhcos_release_url())
self.assertIn("4.9-aarch64", rhcos.RHCOSBuildFinder(self.runtime, "4.9", "aarch64").rhcos_release_url())
self.runtime.group_config.urls = Model(dict(rhcos_release_base=dict(aarch64="https//example.com/storage/releases/rhcos-4.x-aarch64")))
self.assertIn("4.x-aarch64", rhcos.RHCOSBuildFinder(self.runtime, "4.9", "aarch64").rhcos_release_url())
self.assertIn("4.9-s390x", rhcos.RHCOSBuildFinder(self.runtime, "4.9", "s390x").rhcos_release_url())
@patch('urllib.request.urlopen')
def test_build_id(self, mock_urlopen):
_urlopen_json_cm(mock_urlopen, dict(builds=['id-1', 'id-2']))
self.assertEqual('id-1', rhcos.RHCOSBuildFinder(self.runtime, "4.4")._latest_rhcos_build_id())
self.assertIn('/rhcos-4.4/', mock_urlopen.call_args_list[0][0][0])
_urlopen_json_cm(mock_urlopen, dict(builds=[]))
self.assertIsNone(rhcos.RHCOSBuildFinder(self.runtime, "4.2", "ppc64le")._latest_rhcos_build_id())
self.assertIn('/rhcos-4.2-ppc64le/', mock_urlopen.call_args_list[1][0][0])
@patch('urllib.request.urlopen')
def test_build_find_failure(self, mock_urlopen):
mock_urlopen.side_effect = URLError("test")
with self.assertRaises(rhcos.RHCOSNotFound):
rhcos.RHCOSBuildFinder(self.runtime, "4.9")._latest_rhcos_build_id()
@patch('doozerlib.rhcos.RHCOSBuildFinder.latest_rhcos_build_id')
@patch('doozerlib.rhcos.RHCOSBuildFinder.rhcos_build_meta')
def test_latest_container(self, meta_mock, id_mock):
# "normal" lookup
id_mock.return_value = "dummy"
meta_mock.return_value = dict(oscontainer=dict(image="test", digest="sha256:1234abcd"))
self.assertEqual(("dummy", "test@sha256:1234abcd"), rhcos.RHCOSBuildFinder(self.runtime, "4.4").latest_container())
# lookup when there is no build to look up
id_mock.return_value = None
self.assertEqual((None, None), rhcos.RHCOSBuildFinder(self.runtime, "4.4").latest_container())
# lookup when we have configured a different primary container
self.runtime.group_config.rhcos = Model(dict(payload_tags=[dict(name="spam"), dict(name="eggs", primary=True)]))
id_mock.return_value = "dummy"
meta_mock.return_value = dict(
oscontainer=dict(image="test", digest="sha256:1234abcdstandard"),
altcontainer=dict(image="test", digest="sha256:abcd1234alt"),
)
alt_container = dict(name="rhel-coreos-8", build_metadata_key="altcontainer", primary=True)
self.runtime.group_config.rhcos = Model(dict(payload_tags=[alt_container]))
self.assertEqual(("dummy", "test@sha256:abcd1234alt"), rhcos.RHCOSBuildFinder(self.runtime, "4.4").latest_container())
@patch('doozerlib.exectools.cmd_assert')
@patch('doozerlib.rhcos.RHCOSBuildFinder.rhcos_build_meta')
def test_rhcos_build_inspector(self, rhcos_build_meta_mock, cmd_assert_mock):
"""
Tests the RHCOS build inspector abstraction to ensure it correctly parses and utilizes
pre-canned data.
"""
# Data source: https://releases-rhcos-art.apps.ocp-virt.prod.psi.redhat.com/?stream=releases/rhcos-4.7-s390x&release=47.83.202107261211-0#47.83.202107261211-0
rhcos_meta = json.loads(self.respath.joinpath('rhcos1', '47.83.202107261211-0.meta.json').read_text())
rhcos_commitmeta = json.loads(self.respath.joinpath('rhcos1', '47.83.202107261211-0.commitmeta.json').read_text())
# NOTE: loading and parsing these fixtures can take a few seconds, no cause for concern
rpm_defs = yaml.safe_load(self.respath.joinpath('rhcos1', '47.83.202107261211-0.rpm_defs.yaml').read_text())
pkg_build_dicts = yaml.safe_load(self.respath.joinpath('rhcos1', '47.83.202107261211-0.pkg_builds.yaml').read_text())
rhcos_build_meta_mock.side_effect = [rhcos_meta, rhcos_commitmeta]
cmd_assert_mock.return_value = ('{"config": {"config": {"Labels": {"version": "47.83.202107261211-0"}}}}', None)
test_digest = 'sha256:spamneggs'
test_pullspec = f'somereg/somerepo@{test_digest}'
pullspecs = {'machine-os-content': test_pullspec}
rhcos_build = rhcos.RHCOSBuildInspector(self.runtime, pullspecs, 's390x')
self.assertEqual(rhcos_build.brew_arch, 's390x')
self.assertEqual(rhcos_build.get_container_pullspec(), test_pullspec)
self.assertEqual(rhcos_build.stream_version, '4.7')
self.assertEqual(rhcos_build.get_rhel_base_version(), 8)
def canned_getRPM(nvra, *_, **__):
return rpm_defs[nvra]
def canned_getBuild(build_id, *_, **__):
return pkg_build_dicts[build_id]
self.koji_mock.getRPM.side_effect = canned_getRPM
self.koji_mock.getBuild.side_effect = canned_getBuild
self.assertIn("util-linux-2.32.1-24.el8.s390x", rhcos_build.get_rpm_nvras())
self.assertIn("util-linux-2.32.1-24.el8", rhcos_build.get_rpm_nvrs())
self.assertEqual(rhcos_build.get_package_build_objects()['dbus']['nvr'], 'dbus-1.12.8-12.el8_3')
self.assertEqual(rhcos_build.get_container_digest(), test_digest)
@patch('doozerlib.exectools.cmd_assert')
@patch('doozerlib.rhcos.RHCOSBuildFinder.rhcos_build_meta')
def test_inspector_get_container_pullspec(self, rhcos_build_meta_mock, cmd_assert_mock):
# mock out the things RHCOSBuildInspector calls in __init__
rhcos_meta = {"buildid": "412.86.bogus"}
rhcos_commitmeta = {}
rhcos_build_meta_mock.side_effect = [rhcos_meta, rhcos_commitmeta]
cmd_assert_mock.return_value = ('{"config": {"config": {"Labels": {"version": "412.86.bogus"}}}}', None)
pullspecs = {'machine-os-content': 'spam@eggs'}
rhcos_build = rhcos.RHCOSBuildInspector(self.runtime, pullspecs, 's390x')
# test its behavior on misconfiguration / edge case
container_conf = dict(name='spam', build_metadata_key='eggs')
with self.assertRaises(rhcos.RhcosMissingContainerException):
rhcos_build.get_container_pullspec(Model(container_conf))
if __name__ == "__main__":
unittest.main()