data-matching/test/test.js

Matches a data object against a reference value

/* mocha style test (jest runs this without problems) */

var assert = require("assert");
describe("Array", () => {
    describe("#indexOf()", () => {
        it("should return -1 when the value is not present", () => {
            assert.equal(-1, [1, 2, 3].indexOf(4));
        });
    });
});