Write command-level or keybinding-level tests

[whitphx]

Currently the tests are only for EmacsEmulator and other classes around it, and these are more like unit tests. To test the functionalities with command and keybindings, higher level test like integration test are necessary.

TODO:

• ~~Test that ctrl-o works on Windows~~
  • ~~After #3~~
  • ctrl-o is mapped to a built-in command and tests for it is not necessary.
  • Similar commands ctrl-m, ctrl-j mapped to emacs-mcx.newLine are already tested:
    • https://github.com/tuttieee/vscode-emacs-mcx/blob/master/src/test/commands/new-line.test.ts
• Test that ESC works expectedly and does not override the existent keybindings.
  • #30
  • #49
• Test that emacs-mcx.inMarkMode works in when clause.
  • #56

---

Ref:

• ~~Keyboard-level test: https://github.com/VSCodeVim/Vim/blob/master/test/macro.test.ts#L13-L18~~
  • Vim extension has its own key handlers and the tests above inject keypresses in that layer, but not vscode native one. This is not appropriate in our case.

[whitphx]

https://github.com/VSCodeVim/Vim/blob/b6d75ca49ac2bd602f0c6391f699e448d7809f5d/test/extension.test.ts