var assert = require('assert')
  , collection_json = require('../');

function identity(x) { return x; }

var collection1 = {collection: {
  items: [
    { href: "http://example.com/1", links: [],
      data: [
        { prompt: "prompt1", name: "field-1", value: "1", baz: "woot" },
        { prompt: "prompt2", name: "field-2", value: "2", foz: "asdf" },
      ]
    },
    { href: "http://example.com/2", links: [],
      data: [
        { prompt: "prompt1", name: "field-1", value: "3" },
        { prompt: "prompt2", name: "field-2", value: "4" },
      ]
    }
  ]
}};

describe('fromObject', function() {
  it('Has basic fields', function() {
    var collection = collection_json.fromObject({});
    assert.deepEqual([], collection.items);
    assert.deepEqual([], collection.links);
    assert.deepEqual([], collection.queries);
    assert.deepEqual([], collection.templates);
  });

  it('Can map data field in items', function() {
    assert.deepEqual(collection_json.fromObject(collection1).mapItemData(identity), 
      [{"field-1": "1", "field-2": "2"}
      ,{"field-1": "3", "field-2": "4"}]);
    function f(map) { return parseInt(map["field-1"]) + parseInt(map["field-2"]); }
    assert.deepEqual(collection_json.fromObject(collection1).mapItemData(f), [3, 7]);
  });
});