Affected functions:
- `pip.install`
- `pip.installed`
- `virtualenv.managed`
When using `runas` in conjunction with a local-filesystem `requirements` file with these functions,
`pip.install` will create a temporary copy of the requirements file,
then change ownership of that file to the `runas` user.
The purpose of this is to avoid file permission errors when accessing the original requirements file.
However, this breaks when that file has a "-r otherfile.txt" line.
In these cases, set `no_chown` to `True`.
The original path to the requirements file will be kept,
and other requirements files included from the top-level file will be correctly found.
* In order to check if something went wrong while running the various pip commands using the command module, we need to know, at least, the return code, this way we can report the failure.
* `salt.modules.pip.uninstall()` now returns the `cmd.run_all` `dict` instead of a list of strings. **This breaks previous behaviour**.
* Added a test case for `salt.modules.pip.uninstall()` changes.
Defined "integration.run_tests()" function which can be used to execute
a particular integration test case. Existing bolerplate code in modules
and states tests is replaced with following lines:
if __name__ == '__main__':
from integration import run_tests
run_tests(TestCaseName)
Typical usecase could look like this:
python integration/modules/pip.py --no-clean -vv
