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var assert = require('assert');
var R = require('../source');var eq = require('./shared/eq');

describe('mergeDeepWithKey', function() {  function last(k, x, y) { return y; }
  it('takes two objects, recursively merges their own properties and returns a new object', function() {    var a = { w: 1, x: 2, y: { z: 3 }};    var b = { a: 4, b: 5, c: { d: 6 }};    eq(R.mergeDeepWithKey(last, a, b), { w: 1, x: 2, y: { z: 3 }, a: 4, b: 5, c: { d: 6 }});  });
  it('applies the provided function to the key, the value from the first object' +    ' and the value from the second object to determine the value for keys that' +    ' exist in both objects', function() {    var a = { a: { b: 'B1', c: 'C' }, y: 'Y' };    var b = { a: { b: 'B2', d: 'D' }, z: 'Z' };    var c = R.mergeDeepWithKey(function(k, a, b) { return k + a + b; }, a, b);    eq(c, { a: { b: 'bB1B2', c: 'C', d: 'D' }, y: 'Y', z: 'Z' });  });
  it('is not destructive', function() {    var a = { w: 1, x: { y: 2 }};    var res = R.mergeDeepWithKey(last, a, { x: { y: 3 }});    assert.notStrictEqual(a, res);    assert.notStrictEqual(a.x, res.x);    eq(res, { w: 1, x: { y: 3 }});  });
  it('reports only own properties', function() {    var a = { w: 1, x: { y: 2 }};    function Cla() {}    Cla.prototype.y = 5;    eq(R.mergeDeepWithKey(last, { x: new Cla() }, a), { w: 1, x: { y: 2 }});    eq(R.mergeDeepWithKey(last, a, { x: new Cla() }), { w: 1, x: { y: 2 }});  });
});