to equal
Asserts that values of the target are equivalent ot the values of the Collection.
Important: Immutable data structures should only contain other immutable data structures (unlike Arrays and Objects) to be considered immutable and properly work against to equal).
const foo = new List([ 1, 2, 3 ]);
const bar = new List([ 1, 2, 3 ]);
expect(foo, 'to equal', bar);