Test(git-browse-ci): add unit tests

[vanpipy]

File

git-browse-ci

git browse-ci is that the command browses the repository of the CI page which comes from gitlab, github or bitbucket.

Testcases

1. If the repository comes from gitlab, open a url like https://gitlab.com/<user_or_group>/<repo>/-/pipelines
2. If the repository comes from github, open a url like https://github.com/<user_or_org>/<repo>/actions
3. If the repository comes from bitbucket, open a url like https://bitbucket.org/<user_or_org>/<repo>/addon/pipelines/home
4. If the OS is mac, open via command open
5. If the OS is Git-Bash on windows, open via command start
6. If the OS is WSL on windows, open via commnd start
7. If the OS is linux, open via command xdg-open
8. If the OS is unknown, open via command xdg-open

PS: it is simalir with git-browse but for different purposes.