Add unit tests for methods of OneClickInstallWorkerFunctions class

[OleksandrOrlov]

The PR adds unit tests for the following methods of OneClickInstallWorkerFunctions class:

• DeDupe;
• AddRepositories;
• RemoveAddedRepositories.

[coveralls]

Pull Request Test Coverage Report for Build 755855608

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+7.8%) to 12.524%

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Totals
Change from base Build 751438960:	7.8%
Covered Lines:	256
Relevant Lines:	2044

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💛 - Coveralls

[jknphy]

Nice job!, just one suggestion, we could add to #DeDupe the case where nothing is duplicated, the most basic one, if make sense for you.

[jreidinger]

thanks for patch

[yast-bot]

✔️ Public Jenkins job #14 successfully finished
✔️ Created OBS submit request #886116