From 12d7ee2cb6589b866ab26b508b15c65326481d6c Mon Sep 17 00:00:00 2001 From: Joshua Harlow Date: Wed, 11 May 2016 16:47:50 -0700 Subject: Use a fake serial module that will allow tests to contine Instead of aborting all serial using tests instead just create a serial module in cloudinit that will create a fake and broken serial class when pyserial is not actually installed. This allows for using the datasource and tests that exist in a more functional and tested manner (even when pyserial is not found). --- cloudinit/serial.py | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 cloudinit/serial.py (limited to 'cloudinit/serial.py') diff --git a/cloudinit/serial.py b/cloudinit/serial.py new file mode 100644 index 00000000..af45c13e --- /dev/null +++ b/cloudinit/serial.py @@ -0,0 +1,50 @@ +# vi: ts=4 expandtab +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# 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, see . + + +from __future__ import absolute_import + +try: + from serial import Serial +except ImportError: + # For older versions of python (ie 2.6) pyserial may not exist and/or + # work and/or be installed, so make a dummy/fake serial that blows up + # when used... + class Serial(object): + def __init__(self, *args, **kwargs): + pass + + @staticmethod + def isOpen(): + return False + + @staticmethod + def write(data): + raise IOError("Unable to perform serial `write` operation," + " pyserial not installed.") + + @staticmethod + def readline(): + raise IOError("Unable to perform serial `readline` operation," + " pyserial not installed.") + + @staticmethod + def flush(): + raise IOError("Unable to perform serial `flush` operation," + " pyserial not installed.") + + @staticmethod + def read(size=1): + raise IOError("Unable to perform serial `read` operation," + " pyserial not installed.") -- cgit v1.2.3