def test_load_index_with_corrupted_index(self):
test_file = self.get_temp_file('test')
with open(test_file, 'wb') as tf:
tf.write('some junk')
try:
load_index(test_file)
self.fail('No exception raised for corrupted index file.')
except Exception as ex:
assert 'Failed to load license cache' in str(ex)
def test_build_index(self):
# note: this is a rather complex test because caching involves some globals
cache_dir = self.get_temp_dir('index_cache')
lock_file, checksum_file, cache_file = get_license_cache_paths(cache_dir=cache_dir)
tree_base_dir = self.get_temp_dir('src_dir')
licenses_data_dir = self.get_test_loc('cache/data/licenses', copy=True)
rules_data_dir = self.get_test_loc('cache/data/rules', copy=True)
# now add some file in the mock source tree
new_file = os.path.join(tree_base_dir, 'some.py')
with open(new_file, 'wb') as nf:
nf.write('somthing')
timeout = 10
assert not os.path.exists(checksum_file)
assert not os.path.exists(cache_file)
assert not os.path.exists(lock_file)
# when a new index is built, new index files are created
check_consistency = True
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert os.path.exists(checksum_file)
assert os.path.exists(cache_file)
assert not os.path.exists(lock_file)
# when nothing changed a new index files is not created
tree_before = open(checksum_file).read()
idx_checksum_before = hash.sha1(cache_file)
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert tree_before == open(checksum_file).read()
assert idx_checksum_before == hash.sha1(cache_file)
# now add some file in the source tree
new_file = os.path.join(tree_base_dir, 'some file')
with open(new_file, 'wb') as nf:
nf.write('somthing')
# when check_consistency is False, the index is not rebuild when
# new files are added
check_consistency = False
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert tree_before == open(checksum_file).read()
assert idx_checksum_before == hash.sha1(cache_file)
# when check_consistency is True, the index is rebuilt when new
# files are added
check_consistency = True
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert tree_before != open(checksum_file).read()
# now add some ignored file in the source tree
tree_before = open(checksum_file).read()
idx_checksum_before = hash.sha1(cache_file)
new_file = os.path.join(tree_base_dir, 'some file.pyc')
with open(new_file, 'wb') as nf:
nf.write('somthing')
# when check_consistency is True, the index is not rebuilt when new
# files are added that are ignored
check_consistency = True
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert tree_before == open(checksum_file).read()
assert idx_checksum_before == hash.sha1(cache_file)
# if the treechecksum file dies, the index is rebuilt
fileutils.delete(checksum_file)
idx_checksum_before = hash.sha1(cache_file)
check_consistency = False
cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
assert tree_before == open(checksum_file).read()
# if the index cache file dies the index is rebuilt
fileutils.delete(cache_file)
check_consistency = False
idx1 = cache.get_cached_index(cache_dir, check_consistency, timeout,
tree_base_dir, licenses_data_dir, rules_data_dir)
# load index, forced from file
idx2 = cache.load_index(cache_file)
assert idx1.to_dict(True) == idx2.to_dict(True)
# reset global caches
cache._LICENSE_SYMBOLS_BY_SPDX_KEY = {}
cache._LICENSES_BY_KEY_INDEX = None
cache._UNKNOWN_SPDX_SYMBOL = None
cache._LICENSES_BY_KEY = None