no-single-expect-in-then-or-should.md

Simplify tests by avoiding lonely expect()

Disallow usage of expect() statements when they are alone in a then() or should().

Some problems reported by this rule are automatically fixable by the --fix command line option.

Rule Details

This rule makes code easier to read when both conditions are met:

1. a then() (or should()) contains a single call to expect() and
2. the then() (or should()) has the same argument as expect().

Example of incorrect code for this rule:

cy.wait("@PutCountry")
  .its("request.body.userIds")
  .then((userIds) => {
    expect(userIds).to.have.members(expectedUserIds);
  });

Example of correct code for this rule:

cy.wait("@PutCountry")
  .its("request.body.userIds")
  .should("have.members", expectedUserIds);

When Not To Use It

When you don't mind having code that is harder to read than necessary.