"use strict";

let hasIn = require("../../src/deps/is/hasIn");

const flip2 = require("../../src/deps/fp/flip2");

hasIn = flip2(hasIn);

const eq = (x, y, msg) => expect(x).toEqual(y);

describe('hasIn', function () {
  const fred = {
    name: 'Fred',
    age: 23
  };
  const anon = {
    age: 99
  };
  it('returns a function that checks the appropriate property', function () {
    const nm = hasIn('name');
    eq(typeof nm, 'function');
    eq(nm(fred), true);
    eq(nm(anon), false);
  });
  it('checks properties from the prototype chain', function () {
    const Person = function Person() {};

    Person.prototype.age = function () {};

    const bob = new Person();
    eq(hasIn('age', bob), true);
  });
  it('works properly when called with two arguments', function () {
    eq(hasIn('name', fred), true);
    eq(hasIn('name', anon), false);
  });
});