Run block of code each time before certain test in Cypress

Cypress has a very neat API, which is beforeach.

context('Aliasing', () => {
  beforeEach(() => {
    cy.visit('https://example.cypress.io/commands/aliasing')
    // or do other thing instea
  })

  it('a', () => {
    ,,,
  })
  it('b', () => {
    ,,,
  })
})

In this sample, before running a and b, we’ll visit the above URL first. Of course it’s not just for visiting a URL, you can do anything on that block

What if you only want to run before code once.

Maybe you can guess it, we just need to use before API instead of beforeEach. Usage is very similar

context('Aliasing', () => {
  before(() => {
    cy.visit('https://example.cypress.io/commands/aliasing')
    // or do other thing instea
  })

  it('a', () => {
    ,,,
  })
  it('b', () => {
    ,,,
  })
})

This way, we only load/do the block code inside before API once. then continue to the rest of the tests. It useful so we can save the state without repeating same process.