console.clear();

// Can be an object

var map = Immutable.Map({key: "value"});

console.log(map.get("key")); //"value"

// Can be an array

var map = Immutable.Map([["key", {"name": "Zhentian"}]]);

console.log(map.get("key").name); //"Zhentian"

// size prop

console.log(map.size); //

mocha.setup('bdd');

const expect = chai.expect; 

function createObjTodos(numTodos) {

  var obj = {}

  _.each(_.range(numTodos), (index) => {

    const todoSequence = String(index+1);

    obj['todo'+todoSequence] = {

      title: 'Todo '+todoSequence,

      value: `Make ${todoSequence} happen`

    };

  });

  return obj;

} 

describe('Creating an Immutable Object Graph with Immutable.js Map()', () => {

  it('should create Map() with matching keys', () => {

    const data = {

      "todo1": {

        title: "Todo 1",

        value: "Make it happen"

      },

      "todo2": {

        title: "Todo 2",

        value: "Make it happen"

      }

    }

    let map = Immutable.Map(data);

    expect(map.get("todo1").title).to.equal("Todo 1");

  });

  it('should create Map() with keys from array tuples', () => {

    let map = Immutable.Map([["todo1", {title: "Todo 1"}]]) // Note the array within array

    expect(map.get("todo1").title).to.equal("Todo 1");

  });

  it('should create Map() with matching size to number of keys', () => {

    let map = Immutable.Map(createObjTodos(3))

    expect(map.size).to.equal(3);

  });

});

mocha.run();