.toContainEqual()

This assertion checks an array or string subject contains a value.

values are compared using structural equality

jestUnexpected(['a', 'b', { foo: 'bar' }, 'd']).toContainEqual({ foo: 'bar' });

jestUnexpected(['a', 'b', { foo: 'bar' }, 'd']).toContainEqual({ foo: 'baz' });

expected [ 'a', 'b', { foo: 'bar' }, 'd' ]

to contain equal ContainSpec({ spec: { foo: 'baz' }, value: undefined, nested: false })