"use strict";

var eq = (actual, expected) => expect(actual).toEqual(expected);

var path = require("../../src/deps/fp/path");

describe('path', function () {
  var deepObject = {
    a: {
      b: {
        c: 'c'
      }
    },
    falseVal: false,
    nullVal: null,
    undefinedVal: undefined,
    arrayVal: ['arr']
  };
  it('takes a path and an object and returns the value at the path or undefined', function () {
    var obj = {
      a: {
        b: {
          c: 100,
          d: 200
        },
        e: {
          f: [100, 101, 102],
          g: 'G'
        },
        h: 'H'
      },
      i: 'I',
      j: ['J']
    };
    eq(path(['a', 'b', 'c'], obj), 100);
    eq(path([], obj), obj);
    eq(path(['a', 'e', 'f', 1], obj), 101);
    eq(path(['j', 0], obj), 'J');
    eq(path(['j', 1], obj), undefined);
  });
  it('gets a deep property\'s value from objects', function () {
    eq(path(['a', 'b', 'c'], deepObject), 'c');
    eq(path(['a'], deepObject), deepObject.a);
  });
  it('returns undefined for items not found', function () {
    eq(path(['a', 'b', 'foo'], deepObject), undefined);
    eq(path(['bar'], deepObject), undefined);
    eq(path(['a', 'b'], {
      a: null
    }), undefined);
  });
  it('works with falsy items', function () {
    eq(path(['toString'], false), Boolean.prototype.toString);
  });
  it('is curried', function () {
    eq(path(['arrayVal', '0'])(deepObject), 'arr');
  });
});