Test cli

[jburel]

What this PR does

• Add cli.py to testlib
• Deprecate cli.py in test/clitest/cli.py
• Update the tests to use testlib/cli.py

Testing this PR

Make sure the tests are green

Related reading

ome/omero-cli-render#1

cc @joshmoore

[sbesson]

Following my comment on #5499 (comment), if we are moving these specialized ITest classes to the omero.testlib component and making them part of the official test API, would it be the occasion to review the AbstractCLITest > {CLITest,RootCLITest} hierarchy to see if we could reduce it to one class only.

[jburel]

@sbesson I missed your comment on the other PR, it makes sense.
I was going for the "less" disruptive option but better to take the time to clean it up
Note that the same will be done for "script.py" so we can run the tests for scripts in travis too

[dominikl]

So the integration tests stay in components/tools/OmeroPy/test/integration/clitest/ but this cli.py file goes from components/tools/OmeroPy/test/integration/clitest/ to components/tools/OmeroPy/src/omero/testlib/, what's the reason behind that?

[jburel]

so it can be used by any CLI plugin e.g.
ome/omero-cli-render#1
In the PR above I had to copy cli.py in the https://github.com/ome/omero-cli-render repo in order to run the integration tests in travis
This is impractical since the same file will need to be present in all plugins in order to run the tests

[joshmoore]

Rather than warning, this file could likely just import the testlib names as aliases.

[snoopycrimecop]

Conflicting PR. Removed from build OMERO-DEV-merge-push#859. See the console output for more details.
Possible conflicts:

• PR add a "log" command to RawAccessRequest #5538 mtbc 'add a "log" command to RawAccessRequest'
  • components/tools/OmeroPy/test/integration/clitest/test_admin.py

--conflicts Conflict resolved in build OMERO-push#2. See the console output for more details.

[joshmoore]

Merging to clitest. TODOs captured in https://trello.com/c/pCaBmwTV/41-pre-merge-review-test-class-hierarchy

I'll remove cli.py from omero-cli-render and see if I can't get it passing.