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|
import os
import pytest
from buildstream._context import Context
from buildstream._exceptions import LoadError, LoadErrorReason
DATA_DIR = os.path.join(
os.path.dirname(os.path.realpath(__file__)),
'data',
)
# Simple fixture to create a Context object.
@pytest.fixture()
def context_fixture():
if os.environ.get('XDG_CACHE_HOME'):
cache_home = os.environ['XDG_CACHE_HOME']
else:
cache_home = os.path.expanduser('~/.cache')
return {
'xdg-cache': cache_home,
'context': Context()
}
#######################################
# Test instantiation #
#######################################
def test_context_create(context_fixture):
context = context_fixture['context']
assert(isinstance(context, Context))
#######################################
# Test configuration loading #
#######################################
def test_context_load(context_fixture):
context = context_fixture['context']
cache_home = context_fixture['xdg-cache']
assert(isinstance(context, Context))
context.load(config=os.devnull)
assert(context.sourcedir == os.path.join(cache_home, 'buildstream', 'sources'))
assert(context.builddir == os.path.join(cache_home, 'buildstream', 'build'))
assert(context.artifactdir == os.path.join(cache_home, 'buildstream', 'artifacts'))
assert(context.logdir == os.path.join(cache_home, 'buildstream', 'logs'))
# Assert that a changed XDG_CACHE_HOME doesn't cause issues
def test_context_load_envvar(context_fixture):
os.environ['XDG_CACHE_HOME'] = '/some/path/'
context = context_fixture['context']
assert(isinstance(context, Context))
context.load(config=os.devnull)
assert(context.sourcedir == os.path.join('/', 'some', 'path', 'buildstream', 'sources'))
assert(context.builddir == os.path.join('/', 'some', 'path', 'buildstream', 'build'))
assert(context.artifactdir == os.path.join('/', 'some', 'path', 'buildstream', 'artifacts'))
assert(context.logdir == os.path.join('/', 'some', 'path', 'buildstream', 'logs'))
# Reset the environment variable
del os.environ['XDG_CACHE_HOME']
# Test that values in a user specified config file
# override the defaults
@pytest.mark.datafiles(os.path.join(DATA_DIR))
def test_context_load_user_config(context_fixture, datafiles):
context = context_fixture['context']
cache_home = context_fixture['xdg-cache']
assert(isinstance(context, Context))
conf_file = os.path.join(datafiles.dirname,
datafiles.basename,
'userconf.yaml')
context.load(conf_file)
assert(context.sourcedir == os.path.expanduser('~/pony'))
assert(context.builddir == os.path.join(cache_home, 'buildstream', 'build'))
assert(context.artifactdir == os.path.join(cache_home, 'buildstream', 'artifacts'))
assert(context.logdir == os.path.join(cache_home, 'buildstream', 'logs'))
#######################################
# Test failure modes #
#######################################
@pytest.mark.datafiles(os.path.join(DATA_DIR))
def test_context_load_missing_config(context_fixture, datafiles):
context = context_fixture['context']
assert(isinstance(context, Context))
conf_file = os.path.join(datafiles.dirname,
datafiles.basename,
'nonexistant.yaml')
with pytest.raises(LoadError) as exc:
context.load(conf_file)
assert (exc.value.reason == LoadErrorReason.MISSING_FILE)
@pytest.mark.datafiles(os.path.join(DATA_DIR))
def test_context_load_malformed_config(context_fixture, datafiles):
context = context_fixture['context']
assert(isinstance(context, Context))
conf_file = os.path.join(datafiles.dirname,
datafiles.basename,
'malformed.yaml')
with pytest.raises(LoadError) as exc:
context.load(conf_file)
assert (exc.value.reason == LoadErrorReason.INVALID_YAML)
@pytest.mark.datafiles(os.path.join(DATA_DIR))
def test_context_load_notdict_config(context_fixture, datafiles):
context = context_fixture['context']
assert(isinstance(context, Context))
conf_file = os.path.join(datafiles.dirname,
datafiles.basename,
'notdict.yaml')
with pytest.raises(LoadError) as exc:
context.load(conf_file)
# XXX Should this be a different LoadErrorReason ?
assert (exc.value.reason == LoadErrorReason.INVALID_YAML)
|
