expect().to.be.ordered.members() throw an error "TypeError: Cannot read property 'members' of undefined"

Current behavior:

Whenever I try to compare array (order matters) with the command expect(...).to.be.ordered.members(...), Cypress always throw an error.

expect(...).ordered(...) as shown here also failed. https://docs.cypress.io/guides/references/assertions.html#BDD-Assertions

Desired behavior:

It should works.

Steps to reproduce: (app code and test code)

This code failed.

describe("First Test", () => {
    it.only("This will failed", () => {
        expect([0, 1]).to.be.ordered.members([0, 1]);
    });
});

Versions

Cypress version: 3.2.0

[westhomas]

@jennifer-shehane ordered is shown in the docs here: https://docs.cypress.io/guides/references/assertions.html#Chai

I’m guessing that’s automatic. But it’s also confusing 😦

[jennifer-shehane]

The ordered flag was added in chai version 4.x.x. Cypress is currently using chai version 3.5.0. Upgrading to 4.0 is part of our Cypress 4.0 release, so will be supported when that is released.

Closing this issue as duplicate of https://github.com/cypress-io/cypress/issues/2529