[Task] Create integration tests

[JasonBarahan]

Task

Create (partial) integration tests. We want to ensure
(Here I propose mocking the OTP as it involves an external service. We can test email reception separately.)

• Given a mock OTP the user registration process is complete with no malformed data
• Given a mock OTP the user login process is complete with no malformed data
• When a QR code is generated the user is able to scan that QR code, and the database record is modified appropriately
• The same QR code is scanned and a duplicate code prompt (you already scanned this booth!) appears
• The same QR code is scanned after the code refreshes, but before it is invalidated (staggered invalidation) and the duplicate code prompt appears again
• The same QR code is scanned after the code is invalidated and the "invalid code" prompt appears.
• Check that the stamps associated with already scanned QR codes are fully coloured, and those which are not have been greyed out
• Since we already tested QR codes we can then modify the user record to indicate that it has scanned all required stamps. Then we test that receiving the prize works.
• Test that the prize claim prompt appears.
• Test that the "quest already completed" prompt appears once the prize is confirmed to be claimed, and that the appropriate record is modified.
• Test that all buttons actually work

Steps

• Complete those tests

(Feel free to modify the above as needed.)