How to create a data-driven approach to testing

// Store data in ./fixtures/mixed_todos.json
[
  { "id": 1, "name": "Eat", isComplete: true },
  { "id": 2, "name": "Sleep", isComplete: false },
  { "id": 3, "name": "Dream", isComplete: false }
]

// Add you custom command in here: support/commands.js
Cypress.Commands.add('seedAndVisit', (seedData = 'fixture:todos') => {
  cy.server()
  cy.route('GET', '/api/todos', seedData)
    .as('loadToComplete')
  cy.visit('/')
  cy.wait('@loadToComplete')
})



describe('the Footer component', () => {
  it('filters the todos correctly', () => {
    cy.sendAndVist('fixture:mixed_todos')

    const filters = [
      { link: 'Active', size: 2 },
      { link: 'Completed', size: 1 },      
      { link: 'All', size: 3 },            
    ]

    // Data-driven approach to testing
    cy.wrap(filters)
      .each((filter) => {
        const { link, size } = filter
        cy.contains(link).click()
        cy.get('.list-item').should('have.length', size)  
    })
  })
})