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from cloudinit.config.cc_snappy import (
makeop, get_package_ops, render_snap_op)
from cloudinit import util
from .. import helpers as t_help
import os
import shutil
import tempfile
import yaml
ALLOWED = (dict, list, int, str)
class TestInstallPackages(t_help.TestCase):
def setUp(self):
super(TestInstallPackages, self).setUp()
self.unapply = []
# by default 'which' has nothing in its path
self.apply_patches([(util, 'subp', self._subp)])
self.subp_called = []
self.snapcmds = []
self.tmp = tempfile.mkdtemp(prefix="TestInstallPackages")
def tearDown(self):
apply_patches([i for i in reversed(self.unapply)])
shutil.rmtree(self.tmp)
def apply_patches(self, patches):
ret = apply_patches(patches)
self.unapply += ret
def populate_tmp(self, files):
return t_help.populate_dir(self.tmp, files)
def _subp(self, *args, **kwargs):
# supports subp calling with cmd as args or kwargs
if 'args' not in kwargs:
kwargs['args'] = args[0]
self.subp_called.append(kwargs)
snap_cmds = []
args = kwargs['args']
# here we basically parse the snappy command invoked
# and append to snapcmds a list of (mode, pkg, config)
if args[0:2] == ['snappy', 'config']:
if args[3] == "-":
config = kwargs.get('data', '')
else:
with open(args[3], "rb") as fp:
config = yaml.safe_load(fp.read())
self.snapcmds.append(['config', args[2], config])
elif args[0:2] == ['snappy', 'install']:
config = None
pkg = None
for arg in args[2:]:
if arg.startswith("--config="):
cfgfile = arg.partition("=")[2]
if cfgfile == "-":
config = kwargs.get('data', '')
elif cfgfile:
with open(cfgfile, "rb") as fp:
config = yaml.safe_load(fp.read())
elif not pkg and not arg.startswith("-"):
pkg = arg
self.snapcmds.append(['install', pkg, config])
def test_package_ops_1(self):
ret = get_package_ops(
packages=['pkg1', 'pkg2', 'pkg3'],
configs={'pkg2': b'mycfg2'}, installed=[])
self.assertEqual(
ret, [makeop('install', 'pkg1', None, None),
makeop('install', 'pkg2', b'mycfg2', None),
makeop('install', 'pkg3', None, None)])
def test_package_ops_config_only(self):
ret = get_package_ops(
packages=None,
configs={'pkg2': b'mycfg2'}, installed=['pkg1', 'pkg2'])
self.assertEqual(
ret, [makeop('config', 'pkg2', b'mycfg2')])
def test_package_ops_install_and_config(self):
ret = get_package_ops(
packages=['pkg3', 'pkg2'],
configs={'pkg2': b'mycfg2', 'xinstalled': b'xcfg'},
installed=['xinstalled'])
self.assertEqual(
ret, [makeop('install', 'pkg3'),
makeop('install', 'pkg2', b'mycfg2'),
makeop('config', 'xinstalled', b'xcfg')])
def test_package_ops_with_file(self):
self.populate_tmp(
{"snapf1.snap": b"foo1", "snapf1.config": b"snapf1cfg",
"snapf2.snap": b"foo2", "foo.bar": "ignored"})
ret = get_package_ops(
packages=['pkg1'], configs={}, installed=[], fspath=self.tmp)
self.assertEqual(
ret,
[makeop_tmpd(self.tmp, 'install', 'snapf1', path="snapf1.snap",
cfgfile="snapf1.config"),
makeop_tmpd(self.tmp, 'install', 'snapf2', path="snapf2.snap"),
makeop('install', 'pkg1')])
def test_package_ops_config_overrides_file(self):
# config data overrides local file .config
self.populate_tmp(
{"snapf1.snap": b"foo1", "snapf1.config": b"snapf1cfg"})
ret = get_package_ops(
packages=[], configs={'snapf1': 'snapf1cfg-config'},
installed=[], fspath=self.tmp)
self.assertEqual(
ret, [makeop_tmpd(self.tmp, 'install', 'snapf1',
path="snapf1.snap", config="snapf1cfg-config")])
def test_render_op_localsnap(self):
self.populate_tmp({"snapf1.snap": b"foo1"})
op = makeop_tmpd(self.tmp, 'install', 'snapf1',
path='snapf1.snap')
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['install', op['path'], None]])
def test_render_op_localsnap_localconfig(self):
self.populate_tmp(
{"snapf1.snap": b"foo1", 'snapf1.config': b'snapf1cfg'})
op = makeop_tmpd(self.tmp, 'install', 'snapf1',
path='snapf1.snap', cfgfile='snapf1.config')
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['install', op['path'], 'snapf1cfg']])
def test_render_op_snap(self):
op = makeop('install', 'snapf1')
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['install', 'snapf1', None]])
def test_render_op_snap_config(self):
mycfg = {'key1': 'value1'}
name = "snapf1"
op = makeop('install', name, config=mycfg)
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['install', name, {'config': {name: mycfg}}]])
def test_render_op_config_bytes(self):
name = "snapf1"
mycfg = b'myconfig'
op = makeop('config', name, config=mycfg)
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['config', 'snapf1', {'config': {name: mycfg}}]])
def test_render_op_config_string(self):
name = 'snapf1'
mycfg = 'myconfig: foo\nhisconfig: bar\n'
op = makeop('config', name, config=mycfg)
render_snap_op(**op)
self.assertEqual(
self.snapcmds, [['config', 'snapf1', {'config': {name: mycfg}}]])
def test_render_op_config_dict(self):
# config entry for package can be a dict, not a string blob
mycfg = {'foo': 'bar'}
name = 'snapf1'
op = makeop('config', name, config=mycfg)
render_snap_op(**op)
# snapcmds is a list of 3-entry lists. data_found will be the
# blob of data in the file in 'snappy install --config=<file>'
data_found = self.snapcmds[0][2]
self.assertEqual(mycfg, data_found['config'][name])
def test_render_op_config_list(self):
# config entry for package can be a list, not a string blob
mycfg = ['foo', 'bar', 'wark', {'f1': 'b1'}]
name = "snapf1"
op = makeop('config', name, config=mycfg)
render_snap_op(**op)
data_found = self.snapcmds[0][2]
self.assertEqual(mycfg, data_found['config'][name])
def test_render_op_config_int(self):
# config entry for package can be a list, not a string blob
mycfg = 1
name = 'snapf1'
op = makeop('config', name, config=mycfg)
render_snap_op(**op)
data_found = self.snapcmds[0][2]
self.assertEqual(mycfg, data_found['config'][name])
def test_render_does_not_pad_cfgfile(self):
# package_ops with cfgfile should not modify --file= content.
mydata = "foo1: bar1\nk: [l1, l2, l3]\n"
self.populate_tmp(
{"snapf1.snap": b"foo1", "snapf1.config": mydata.encode()})
ret = get_package_ops(
packages=[], configs={}, installed=[], fspath=self.tmp)
self.assertEqual(
ret,
[makeop_tmpd(self.tmp, 'install', 'snapf1', path="snapf1.snap",
cfgfile="snapf1.config")])
# now the op was ok, but test that render didn't mess it up.
render_snap_op(**ret[0])
data_found = self.snapcmds[0][2]
# the data found gets loaded in the snapcmd interpretation
# so this comparison is a bit lossy, but input to snappy config
# is expected to be yaml loadable, so it should be OK.
self.assertEqual(yaml.safe_load(mydata), data_found)
def makeop_tmpd(tmpd, op, name, config=None, path=None, cfgfile=None):
if cfgfile:
cfgfile = os.path.sep.join([tmpd, cfgfile])
if path:
path = os.path.sep.join([tmpd, path])
return(makeop(op=op, name=name, config=config, path=path, cfgfile=cfgfile))
def apply_patches(patches):
ret = []
for (ref, name, replace) in patches:
if replace is None:
continue
orig = getattr(ref, name)
setattr(ref, name, replace)
ret.append((ref, name, orig))
return ret
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