siu/lib/array/addCids.test.js

Seamless Immutable Utilities

var test      = require('tape-catch');
var SI        = require('seamless-immutable');
var addCIds   = require('./addCIds.js');

test('a.addCIds', function (t) {
  var items = SI([{
    id: 1,
    name: 'Sara'
  }]);

  items = addCIds(items, 'cid');

  t.ok(items[0].cid != null, "Adds cid");
  t.end();
});

test('raise if not immutable', function(t) {
  var items = [{
    name: 'Sara'
  }];

  function add() {
    addCIds(items, 'cid');
  }

  t.throws(add);
  t.end();

});

test('doesnt override', function(t) {
  var items = SI([{
    id: 1,
    cid: 23,
    name: 'Sara'
  }]);

  items = addCIds(items, 'cid');

  t.ok(items[0].cid === 23);
  t.end();
});