Populating Database for Testing
Explore how to insert specific data into a database to support reliable testing of Next.js applications with Cypress. This lesson covers creating custom Cypress tasks, updating configuration files, extending TypeScript types, and running tests that depend on seeded data for accurate assertions.
We'll cover the following...
Our Next.js application uses a database for many parts of its functionality. To properly test these functionalities, we need to ensure the database possesses certain data when we run our tests. Let’s build an easy way to insert any type of data into a database.
In the test given below, Cypress visits the website on the /test-meetup path and asserts that the HTTP response is successful. Let’s run the test to see what happens.
describe("Meetup detail page", () => {
it("Should exist when it is in database", () => {
cy.visit("/test-meetup");
});
});
export {};
The test fails as expected because there is no meetup with the test-meetup slug in the database. To make this test pass, we must somehow insert a meetup with the test-meetup slug into the database before we run the ...