Modifying code to add more tests

[emmahsax]

Changes

A list of the changes that your pull request will make:

• Adding a page "..."
• Refactoring "..."

I've wanted to add some more tests to this project for a while. Unfortunately, the code required a lot of changes to be in a place where it could take tests. Finally... I've been able to try these out!

I will also complete a full manual regression test of all commands, and I want to build this locally and work with it for a while to see how it does before I try to merge it.

Regression Test

• Test completion (usage)
• Test change-remote
  • When changing GitLab remote
  • When changing GitHub remote
• Test checkout-default
• Test clean-branches
  • When there are changes to pull
  • When there are no changes to pull
  • When already on main branch
• Test code-request
  • GitHub with main branch, draft, autogenerated title, basic template
  • GitHub with feature branch, non-draft, write your own title, choose a different template
  • GitLab with main branch, draft, autogenerated title, basic template
  • GitLab with feature branch, non-draft, write your own title, choose a different template
  • On either with any base branch, but where branch has jira-123 in the branch
  • On either with any base branch, but where branch has jira_123 in the branch
  • On either with any base branch, but where branch has neither
• Test completion (command)
• Test empty-commit
• Test forget-local-changes
  • While on the main branch
  • While on a feature branch
• Test forget-local-commits
  • While on the main branch
  • While on a feature branch
• Test help
  • At root command
  • Within each command
• Test new-branch
  • Pass in a new branch
  • Provide a new branch when prompted
  • Pass in a bogus branch
  • Provide a bunch of bogus branches when prompted
• Test set-head-ref
• Test setup
  • With config file already present, replace with only GitHub, skip plugins, skip completion
  • With config file already present, replace with only GitLab, add plugins, add completion
  • With config file already present, replace with both GitHub and GitLab, add plugins, skip completion
  • With config file already present, opt not to replace, skip plugins, add completion
  • With config file missing, add a new one with both GitHub and GitLab, skip plugins, add completion
• Test update
• Test version

Related Pull Requests and Issues

If applicable, a list of related pull requests and issues:

• Issue URL link
• Pull Request URL link

Additional Context

Add any other context about the problem here.