"close connection" keyword won't remove current connection instance from connectioncache._connections list

[yanne]

In SSHLibrary.library.py, The "close_connection()" method invokes "close()" method provided by sshclient instance without updating information kept in "_connections" attirbute of robot.utils.ConnectionCache class. Reproduce steps:

1. initiate a ssh connection with alias "SUT" as current connection: |open connection| host | alias=SUT |
2. close this connection |close connection|
3. try to get connection with this alias |${index}= |get connection| SUT |
4. The closed connection can be fetched and operations afterwards will fail | switch connection| SUT|

AttributeError: 'NoneType' object has no attribute 'open_sftp_client'

include the following information:

• SSHLibrary version : 2.0.1
• Used interpreter (Python/Jython) and its version: python 2.7.3
• Operating system : Win7

This issue was originally opened at Google Code on Mar 6, 2014.

[yanne]

Original comment by jussi.ao...@gmail.com on Jun 1, 2014.

So it does. The robot.utils.ConnectionCache doesnt seem to have public API any way to remove a connection from it.

That said, I dont know if actually removing a closed connection is necessary. Maybe a nice error message that the user is trying to operate on a closed connection would be enough?