def test_crc_is_stored_properly(self):
self._add_to_db('o1', 'i2', compute_crc=True)
self._change_mtime('i2')
self._change_size('o1')
actual = self._changed_files('o1', 'i2', compute_crc=True)
expected = set(['o1'])
self.assertEqual(expected, actual)
filemod_db.set_up_to_date('o1')
# Even though we changed mtime, we're ok because the crc is stored.
self._change_mtime('o1')
actual = self._changed_files('o1', 'i2', compute_crc=True)
self.assertEqual(set(), actual)
# This is true even if we get rid of caches, and fall back on the db.
filemod_db.reset_for_tests()
actual = self._changed_files('o1', 'i2', compute_crc=True)
self.assertEqual(set(), actual)
# Again, if we don't include compute_crc, the test fails.
filemod_db.reset_for_tests()
actual = self._changed_files('o1', 'i2')
expected = set(['o1'])
self.assertEqual(expected, actual)
def setUp(self):
super(KakeTestBase, self).setUp()
self.create_tmpdir() # sets self.tmpdir and self.real_project_root
os.mkdir(os.path.join(self.tmpdir, 'genfiles'))
# We need a fake app.yaml because the handlebars babel-extract
# calls route-map which reads app.yaml.
with open(self._abspath('app.yaml'), 'w') as f:
f.write("""\
application: khan-academy
runtime: python27
api_version: 1
threadsafe: no
handlers:
- url: .*
script: ping.application
""")
filemod_db.reset_for_tests() # ensure the old _DB isn't lying around
compile_rule.reset_for_tests()
compile_util.reset_for_tests()
# Make sure we reset the compile-rules after each test.
self.mock_value(
'kake.compile_rule._COMPILE_RULES',
{k: v.copy()
for (k, v) in compile_rule._COMPILE_RULES.items()})
self.mock_value('kake.compile_rule._COMPILE_RULE_LABELS',
compile_rule._COMPILE_RULE_LABELS.copy())
# Useful for, e.g. test_starstar().
open(self._abspath('package.json'), 'w').close()
def _add_to_db(self, outfile_name, *infile_names, **kwargs):
"""Adds info about outfile_name and infile_names to filemod-db."""
_ = self._changed_files(outfile_name, *infile_names, **kwargs)
self._create_files([outfile_name]) # because it's 'changed'!
filemod_db.set_up_to_date(outfile_name)
# Now we'll simulate restarting the server, so all state in
# filemod_db gets erased.
filemod_db.sync()
filemod_db.reset_for_tests()
def test_crc_trumps_mtime(self):
self._add_to_db('o1', 'i2', compute_crc=True)
self._change_mtime('i2')
actual = self._changed_files('o1', 'i2', compute_crc=True)
self.assertEqual(set(), actual)
# This works even if we clear the caches first.
filemod_db.reset_for_tests()
actual = self._changed_files('o1', 'i2', compute_crc=True)
self.assertEqual(set(), actual)
# But if you don't include compute_crc the second time, we'll
# fail because the mtimes differ. (We need to clear caches
# for this to work, since crcs are in the cache.)
filemod_db.reset_for_tests()
actual = self._changed_files('o1', 'i2')
expected = set(['i2'])
self.assertEqual(expected, actual)