Custom Cypress command that provides function outputs

When I implement the following code snippet:

export const test = () => ({
  yo: () => console.log('test'),
});
Cypress.Commands.add('test', test);

declare global {
  namespace Cypress {
    interface Chainable<Subject> {
       test: typeof test;
    }
  }
}

There doesn't appear to be any visible errors in the code.

However, during testing, when I use cy.test().yo(), I encounter an error stating 'yo' is not a function - but this only happens when running the test.

Answer №1

In Cypress, the object is not returned directly. Instead, it is wrapped so that you can chain the result. To access the content, you can either use then or invoke

it("executes command using then", () => {
  cy.test().then(res => res.yo())
})

it("executes command using invoke", () => {
  cy.test().invoke('yo')
})

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