EcomDev_PHPUnit Tip #9

For years, the test framework EcomDev_PHPUnit is quasi-standard for Magento unit tests. The current version is 0.3.7 and last state of official documentation is version 0.2.0 – since then, much has changed which you have to search yourself in code and GitHub issues. This series shall collect practical usage tips.

Tip #9: Checkout Test

3 Years ago I already wrote an article about how to write a checkout integration test. But the practices used there are not longer up to date and some workarounds have become unnecessary. This post shows what’s necessary to write a test that simulates the Magento checkout, using techniques learned in Tip #1.

  1. Since there are some singletons involved, make sure to reset their state:
     * @test
     * @singleton checkout/session
     * @singleton customer/session
     * @singleton checkout/cart
  2. You should visit the cart page once to trigger totals collection. Assuming, the customer id is 1 and she has an active quote (from previously added products in the test or from a quote fixture), you start with:
  3. Before each new request, you have to reset the checkout session singleton manually within the test, otherwise the quote is not reloaded and you might even lose it completely:
  4. Sometimes you want to logout a customer with active shopping cart. This needs three steps: