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Simple E2E test suite with Cypress

site: http://angularjs.realworld.io/ [WIP]

🥅 Goals:

keep it simple - no 'custom' abstractions/functions/utils/helpers (use what Cypress provides)
tests are easily readable
project is easily understandable even to people without previous JS or Cypress knowledge

If you installed Cypress via npm:
- cypress test runner (cypress open):
  - npm run cy:open:web OR cypress open --env device=web (change web to mob to switch to mobile view)
- cypress headless mode (cypress run):
  - npm run cy:run:web OR cypress run --env device=web
If you installed Cypress zip:
- import cypress-example folder and you are good to go

Tests are located in cypress/integration folder

Configuration files:

Custom commands (shortcuts) are located in cypress/support folder (.cmd.js suffix)

Selectors are located in cypress/selectors folder [only difference from cypress default project structure]

not using page objects pattern but keeping selectors (only selectors) separately as they are not easily readable and sometimes we need to share selectors between tests

Why keep selectors separately (not hard-coded to tests)
- tests are much more readable - css selectors are by nature hard to read - even if we add data-test attributes. We might need 2nd child or want to verify that selector is a child for another element, like .class2 > ul:nth-child(2) (alternative get().find() or get().parent() is bad practice because of this )
- in large projects, we might need to re-use the same selectors. Example: in login test, we want to verify that login was successful and we check settings link in header. But the same settings link is also used in header test.
- selector and test logic is separated - when selector is updated, we just need to update selector file and not tests
Is it still E2E test if we use API to login in settings test?
- since end result will be the same - it will catch exactly the same bugs as full flow/user journey E2E test would find, (we need to be careful not to leave 'gaps' though), it is E2E - tests are just separated and independent with this approach, test suite is E2E, one test might not be.
Why mobile view is in config and not in test (like cy.viewport())?
- we can't change userAgent in the middle of the test: https://github.com/cypress-io/cypress/issues/2100 So it seems more correct to launch the tests with the correct config (--env device=mob/web)