Implement program tests

[upsiflu]

As of now, we can test functions but not applications. Since so much hinges on the Url state properly mapped to the Ui, a suite for testing edge cases would be amazing.

elm-program-test: https://package.elm-lang.org/packages/avh4/elm-program-test/latest/

• Do all Link types work?

  • Back (Only path changes elongate the history)
  • Assignments are accumulative
  • Bounce and Toggle: New tabs get absolute links while running SPAs interpret relative links

• Is the syntax reflected in the Ui.view?

  • Check permutations of at, wrap and ++

• Are links in Html rendered correctly?

  • Inactive links occlude nested Ui items
  • Todo: parametrized Links hand over their parameter to the view #28

• [ ] Formulate user journeys with assertions alongside the exposed functions in the exposed modules: a typical example, and perhaps some edge cases.

  Restrictive

  • [ ] application

Ui

• [ ] singleton
• [ ] wrap
• [ ] ++
• [ ] view with every layout module

State

• [ ] init
• [ ] next with every Link constructor
• [ ] fromString
• [ ] toString
• [ ] view

• [ ] Create one Example which includes all the tests
• [ ] Import this example in the function tests