Prepare test for CI/CD

[Nithador]

• Check JS for Cypress
• Functions from logic to testthat

[osalamon]

Hey,

regarding testing of Javascript (and HTML): I added two sets of Cypress E2E tests here https://github.com/BioDT/biodt-shiny/tree/add-first-Cypress-test

The first set applies to the app generally (if the app starts; if it has correct document title; if can be switched from Honeybee and back to HP) and to the content of home/landing page (three paragraphs with its given texts; 4 cards/categories with links to pDTs).

The second set checks whether our translation plugin works OK (if the default language is set to EN; after switching to CZ if the text in homepage is in Czech language accordingly).

In the regard of second part of task, I am going to look into the "testthat" package... to see if I'll be able to come up with tests of functions in /logic folder:-)

[osalamon]

Ok, I was also able to develop at least one test (via testthat) which tests whether the function get_coords_deimsid() from file app/logic/deimsid_coordinates.R works correctly.

The test can be run locally from working dir by:

testthat::test_file("tests//testthat//test-deimsid_coordinates.R", reporter = "progress")

(Just for the record, I also add here how to run Cypress tests locally in interactive mode - via command rhino::test_e2e(interactive = T).)