We already have a basic test for error behaviour and for SFTP. We should add one for SshRemoteProcess as well, testing a successful and a deliberatly unsuccessful run of an application that produces output.
For example:

• "ls /tmp": We should get output on stdout, nothing on stderr and a regular exit with code 0.
• "ls dfrggfgfdgfd": We should get nothing on stdout, a message on stderr and a regular exit with code != 0.
• and a third example that crashes, so we can test whether we get the "killed by signal" error (e.g. start an additional "kill process").