本文整理汇总了Python中testlib.temp_env函数的典型用法代码示例。如果您正苦于以下问题：Python temp_env函数的具体用法？Python temp_env怎么用？Python temp_env使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了temp_env函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_max_dbs
def test_max_dbs(self):
self.assertRaises(OverflowError,
lambda: testlib.temp_env(max_dbs=-1))
for val in 0, 10, 20:
_, env = testlib.temp_env(max_dbs=val)
dbs = [env.open_db(B('db%d' % i)) for i in range(val)]
self.assertRaises(lmdb.DbsFullError,
lambda: env.open_db(B('toomany')))示例2: test_dupsort
def test_dupsort(self):
_, env = testlib.temp_env()
db1 = env.open_db(B('db1'), dupsort=True)
txn = env.begin(write=True, db=db1)
assert txn.put(B('a'), B('a'))
assert txn.put(B('a'), B('b'))
assert txn.get(B('a')) == B('a')示例3: test_integerdup
def test_integerdup(self):
_, env = testlib.temp_env()
db1 = env.open_db(B('db1'), dupsort=True, integerdup=True)
txn = env.begin(write=True, db=db1)
assert txn.put(UINT_0001, UINT_0002)
assert txn.put(UINT_0001, UINT_0001)
assert txn.get(UINT_0001) == UINT_0001示例4: test_big_reverse
def test_big_reverse(self):
path, env = testlib.temp_env()
txn = env.begin(write=True)
keys = [B('%05d' % i) for i in range(0xffff)]
for k in keys:
txn.put(k, k, append=True)
assert list(txn.cursor().iterprev(values=False)) == list(reversed(keys))示例5: test_sync
def test_sync(self):
_, env = testlib.temp_env()
env.sync(False)
env.sync(True)
env.close()
self.assertRaises(Exception,
lambda: env.sync(False))示例6: test_readonly_false
def test_readonly_false(self):
path, env = testlib.temp_env(readonly=False)
with env.begin(write=True) as txn:
txn.put(B('a'), B(''))
with env.begin() as txn:
assert txn.get(B('a')) == B('')
assert not env.flags()['readonly']示例7: test_reader_check
def test_reader_check(self):
path, env = testlib.temp_env(max_spare_txns=0)
rc = env.reader_check()
assert rc == 0
# We need to open a separate env since Transaction.abort() always calls
# reset for a read-only txn, the actual abort doesn't happen until
# __del__, when Transaction discovers there is no room for it on the
# freelist.
env1 = lmdb.open(path)
txn1 = env1.begin()
assert env.readers() != NO_READERS
assert env.reader_check() == 0
# Start a child, open a txn, then crash the child.
rc = os.spawnl(os.P_WAIT, sys.executable, sys.executable,
__file__, 'test_reader_check_child', path)
assert rc == 0
assert env.reader_check() == 1
assert env.reader_check() == 0
assert env.readers() != NO_READERS
txn1.abort()
env1.close()
assert env.readers() == NO_READERS
env.close()
self.assertRaises(Exception,
lambda: env.reader_check())示例8: test_reader_check
def test_reader_check(self):
path, env = testlib.temp_env()
rc = env.reader_check()
assert rc == 0
txn1 = env.begin()
assert env.readers() != NO_READERS
assert env.reader_check() == 0
# Start a child, open a txn, then crash the child.
child_pid = os.fork()
if not child_pid:
env2 = lmdb.open(path)
txn = env2.begin()
os.kill(os.getpid(), signal.SIGKILL)
assert os.waitpid(child_pid, 0) == (child_pid, signal.SIGKILL)
assert env.reader_check() == 1
assert env.reader_check() == 0
assert env.readers() != NO_READERS
txn1.abort()
assert env.readers() == NO_READERS
env.close()
self.assertRaises(Exception,
lambda: env.reader_check())示例9: test_begin_readonly
def test_begin_readonly(self):
_, env = testlib.temp_env()
txn = env.begin()
# Read txn can't write.
self.assertRaises(lmdb.ReadonlyError,
lambda: txn.put(B('a'), B('')))
txn.abort()示例10: test_readonly
def test_readonly(self):
_, env = testlib.temp_env()
txn = lmdb.Transaction(env)
# Read txn can't write.
self.assertRaises(lmdb.ReadonlyError,
lambda: txn.put(B('a'), B('')))
txn.abort()示例11: test_abort_rw
def test_abort_rw(self):
_, env = testlib.temp_env()
txn = env.begin(write=True)
assert txn.put(B('a'), B('a'))
txn.abort()
txn = env.begin()
assert txn.get(B('a')) is None示例12: test_ok
def test_ok(self):
path, env = testlib.temp_env()
with env as env_:
assert env_ is env
with env.begin() as txn:
txn.get(B('foo'))
self.assertRaises(Exception, lambda: env.begin())示例13: test_one
def test_one(self):
_, env = testlib.temp_env(max_spare_txns=1)
# 1 here, since CFFI uses a temporary reader during init.
assert 1 >= reader_count(env)
t1 = env.begin()
assert 1 == reader_count(env)
t2 = env.begin()
assert 2 == reader_count(env)
t1.abort()
del t1
assert 2 == reader_count(env) # 1 live, 1 cached
t2.abort()
del t2
assert 1 == reader_count(env) # 1 cached
t3 = env.begin()
assert 1 == reader_count(env) # 1 live
t3.abort()
del t3
assert 1 == reader_count(env) # 1 cached示例14: test_stat
def test_stat(self):
_, env = testlib.temp_env()
db1 = env.open_db(B('db1'))
db2 = env.open_db(B('db2'))
txn = lmdb.Transaction(env)
for db in db1, db2:
stat = txn.stat(db)
for k in 'psize', 'depth', 'branch_pages', 'overflow_pages',\
'entries':
assert isinstance(stat[k], INT_TYPES), k
assert stat[k] >= 0
assert stat['entries'] == 0
txn = lmdb.Transaction(env, write=True)
txn.put(B('a'), B('b'), db=db1)
txn.commit()
txn = lmdb.Transaction(env)
stat = txn.stat(db1)
assert stat['entries'] == 1
stat = txn.stat(db2)
assert stat['entries'] == 0
txn.abort()
self.assertRaises(Exception,
lambda: env.stat(db1))
env.close()
self.assertRaises(Exception,
lambda: env.stat(db1))示例15: test_subdir_false_ok
def test_subdir_false_ok(self):
path = testlib.temp_file(create=False)
_, env = testlib.temp_env(path, subdir=False)
assert os.path.exists(path)
assert os.path.isfile(path)
assert os.path.isfile(path + '-lock')
assert not env.flags()['subdir']