diskimage-builder/diskimage_builder/elements/package-installs/tests/test_package_squash.py
Ian Wienand c52c383f1b package-installs: provide for skip from env var
Provide a "when" option that provides for not installing packages
based on a = or != match on an environment variable.

Unit tests are added.

Change-Id: Ifa824dccaff69fd447f45d54cb4a3083bcabdd86
2018-11-30 10:02:47 +11:00

140 lines
4.5 KiB
Python

# Copyright 2018 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import collections
import functools
import imp
import mock
import os
from oslotest import base
from testtools.matchers import Mismatch
installs_squash_src = (os.path.dirname(os.path.realpath(__file__)) +
'/../bin/package-installs-squash')
installs_squash = imp.load_source('installs_squash', installs_squash_src)
class IsMatchingInstallList(object):
def __init__(self, expected):
self.expected = expected
def match(self, actual):
for phase, ops in self.expected.items():
if phase not in actual:
# missing the phase
return Mismatch(
"Phase %d does not exist in %s" % (phase, actual))
for op, pkgs in ops.items():
if op not in actual[phase]:
# missing op (install/uninstall)
return Mismatch(
"Operation %s does not exist in %s" % (op, ops))
# on py2 these can be out of order, we just want a match
expected_phase_ops = sorted(self.expected[phase][op])
actual_phase_ops = sorted(actual[phase][op])
if expected_phase_ops != actual_phase_ops:
return Mismatch(
"Operation list %s does not match expected %s" %
(actual[phase][op], self.expected[phase][op]))
class TestPackageInstall(base.BaseTestCase):
def setUp(self):
super(TestPackageInstall, self).setUp()
self.final_dict = collections.defaultdict(
functools.partial(collections.defaultdict, list))
def test_simple(self):
'''Test a basic package install'''
objs = {
'test_package': ''
}
result = installs_squash.collect_data(
self.final_dict, objs, 'test_element')
expected = {
'install.d': {
'install': [('test_package', 'test_element')]
}
}
self.assertThat(result, IsMatchingInstallList(expected))
@mock.patch.object(os, 'environ', dict(ARCH='arm64', **os.environ))
def test_arch(self):
'''Exercise the arch and not-arch flags'''
objs = {
'test_package': '',
'test_arm64_package': {
'arch': 'arm64'
},
'do_not_install': {
'not-arch': 'arm64'
}
}
result = installs_squash.collect_data(
self.final_dict, objs, 'test_element')
expected = {
'install.d': {
'install': [('test_package', 'test_element'),
('test_arm64_package', 'test_element')]
}
}
self.assertThat(result, IsMatchingInstallList(expected))
@mock.patch.object(os, 'environ', dict(DIB_FEATURE='1', **os.environ))
def test_skip_when(self):
'''Exercise the when flag'''
objs = {
'skipped_package': {
'when': 'DIB_FEATURE=0'
},
'not_skipped_package': {
'when': 'DIB_FEATURE=1'
},
'not_equal_package': {
'when': 'DIB_FEATURE!=0'
},
'not_equal_skipped_package': {
'when': 'DIB_FEATURE!=1'
},
}
result = installs_squash.collect_data(
self.final_dict, objs, 'test_element')
expected = {
'install.d': {
'install': [('not_skipped_package', 'test_element'),
('not_equal_package', 'test_element')]
}
}
self.assertThat(result, IsMatchingInstallList(expected))
def test_skip_no_var(self):
'''Exercise the skip_when missing variable failure case'''
objs = {
'package': {
'when': 'MISSING_VAR=1'
},
}
self.assertRaises(RuntimeError, installs_squash.collect_data,
self.final_dict, objs, 'test_element')