method

test.MatchersBuiltin.toContainEqual

expected: T extends Iterable<U, any, any> ? U : T

): void;

Asserts that a value contains and equals what is expected.

This matcher performs a deep equality check on array members, rather than checking for object identity.

@param expected

the expected value

expect([{ a: 1 }]).toContainEqual({ a: 1 });
expect([{ a: 1 }]).not.toContainEqual({ a: 2 });

expected: NoInfer<X extends Iterable<U, any, any> ? U : X>

): void;