valid-expect.md

DEPRECATED Enforce valid expect() usage (valid-expect)

Rule is DEPRECATED use expect-matcher and expect-single-argument instead.

Ensure expect() is called with a single argument and there is an actual expectation made.

Rule details

This rule triggers a warning if expect() is called with more than one argument or without arguments. It would also issue a warning if there is nothing called on expect(), e.g.:

expect();
expect("something");

or when a matcher function was not called, e.g.:

expect(true).toBeDefined

This rule is enabled by default.

Default configuration

The following patterns are considered warnings:

expect();
expect().toEqual("something");
expect("something", "else");
expect("something");
expect(true).toBeDefined;

The following patterns are not warnings:

expect("something").toEqual("something");
expect([1, 2, 3]).toEqual([1, 2, 3]);
expect(true).toBeDefined();