How I test SMS OTP flows in Cypress (the cy.task trick)
javascript
dev.to
In the previous post I showed how I test SMS OTP flows in Playwright without sending real texts. A few people asked about Cypress, and Cypress needs one extra trick, so here it is. Quick recap of the idea: in the test environment, the app still sends SMS through its normal provider SDK, but the SDK points to a mock inbox instead of the real provider. Nothing reaches a carrier. The test reads the code over HTTP and types it in. No 000000 backdoor in the app, and the real flow gets tested.