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# Copyright (C) 2012 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import unittest
import morphlib
class DummyBuildEnvironment:
'''Fake build environment class that doesn't need
settings to pick the environment, it just gets passed
a dict representing it
'''
def __init__(self, env, arch=None):
self.arch = morphlib.util.arch() if arch == None else arch
self.env = env
class CacheKeyComputerTests(unittest.TestCase):
def setUp(self):
pool = morphlib.sourcepool.SourcePool()
self.sources = {}
for name, text in {
'chunk.morph': '''{
"name": "chunk",
"kind": "chunk"
}''',
'stratum.morph': '''{
"name": "stratum",
"kind": "stratum",
"sources": [
{
"name": "chunk",
"repo": "repo",
"ref": "original/ref"
}
]
}''',
}.iteritems():
source = morphlib.source.Source('repo', 'original/ref', 'sha',
morphlib.morph2.Morphology(text), name)
pool.add(source)
self.sources[name] = source
morphlib.buildgraph.BuildGraph().compute_build_order(pool)
self.build_env = DummyBuildEnvironment({
"USER": "foouser",
"USERNAME": "foouser",
"LOGNAME": "foouser",
"TOOLCHAIN_TARGET": "dummy-baserock-linux-gnu",
"PREFIX": "/baserock",
"BOOTSTRAP": "false",
"CFLAGS": "-O4"})
self.ckc = morphlib.cachekeycomputer.CacheKeyComputer(self.build_env)
def test_get_cache_key_hashes_all_types(self):
runcount = {'thing': 0, 'dict': 0, 'list': 0, 'tuple': 0}
def inccount(func, name):
def f(sha, item):
runcount[name] = runcount[name] + 1
func(sha, item)
return f
self.ckc._hash_thing = inccount(self.ckc._hash_thing, 'thing')
self.ckc._hash_dict = inccount(self.ckc._hash_dict, 'dict')
self.ckc._hash_list = inccount(self.ckc._hash_list, 'list')
self.ckc._hash_tuple = inccount(self.ckc._hash_tuple, 'tuple')
self.ckc.get_cache_key(self.sources['stratum.morph'])
self.assertNotEqual(runcount['thing'], 0)
self.assertNotEqual(runcount['dict'], 0)
self.assertNotEqual(runcount['list'], 0)
self.assertNotEqual(runcount['tuple'], 0)
def _valid_sha256(self, s):
validchars = '0123456789abcdef'
return len(s) == 64 and all(c in validchars for c in s)
def test_get_cache_key_returns_sha256(self):
self.assertTrue(self._valid_sha256(
self.ckc.get_cache_key(self.sources['stratum.morph'])))
def test_different_env_gives_different_key(self):
oldsha = self.ckc.get_cache_key(self.sources['stratum.morph'])
build_env = DummyBuildEnvironment({
"USER": "foouser",
"USERNAME": "foouser",
"LOGNAME": "foouser",
"TOOLCHAIN_TARGET": "dummy-baserock-linux-gnu",
"PREFIX": "/baserock",
"BOOTSTRAP": "false",
"CFLAGS": "-Os"})
ckc = morphlib.cachekeycomputer.CacheKeyComputer(build_env)
self.assertNotEqual(oldsha,
ckc.get_cache_key(self.sources['stratum.morph']))
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