What are Cypress fixtures and how to use them?

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in Cypress, fixtures are external pieces of static data that you can use during your tests. They are usually stored in the cypress/fixtures folder as JSON, CSV, or text files, and allow you to separate test data from your test scripts. This makes your tests more organized, reusable, and easier to maintain.

For example, instead of hardcoding login credentials or user information inside your test, you can store them in a fixture file like user.json and reference it whenever needed. This is especially useful for testing with multiple sets of data, API responses, or mock data.

How to use Fixtures in Cypress:

Create a fixture file

Inside cypress/fixtures/user.json:

{

  "username": "testuser",

  "password": "Password123"

}

Load the fixture in your test

Use the cy.fixture() command to access the data:

describe('Login Test', () => {

  it('logs in using fixture data', () => {

    cy.fixture('user').then((user) => {

      cy.get('#username').type(user.username);

      cy.get('#password').type(user.password);

      cy.get('#loginBtn').click();

    });

  });

});

Reusability

You can use the same fixture data across multiple test cases, reducing duplication and improving consistency.

In summary, Cypress fixtures simplify test data management by keeping test scripts clean, reusable, and easy to update. They are best suited for static or mock data needed repeatedly in test automation.

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