def test_cannot_write_on_read_trans(self, keyfs):
key = keyfs.add_key("hello", "hello", dict)
tx_1 = Transaction(keyfs)
with pytest.raises(keyfs.ReadOnly):
tx_1.set(key, {})
with pytest.raises(keyfs.ReadOnly):
tx_1.delete(key)
def test_concurrent_tx_sees_original_value_on_delete(self, keyfs):
D = keyfs.add_key("NAME", "hello", dict)
with keyfs.transaction(write=True):
D.set({1:2})
tx_1 = Transaction(keyfs, write=True)
tx_2 = Transaction(keyfs)
tx_1.delete(D)
tx_1.commit()
assert tx_2.get(D) == {1:2}