johnny-five/test/relay.js

The JavaScript Arduino Programming Framework.

var five = require("../lib/johnny-five.js"),
  sinon = require("sinon"),
  MockFirmata = require("./mock-firmata"),
  Relay = five.Relay,
  Board = five.Board;

function newBoard() {
  return new Board({
    io: new MockFirmata(),
    debug: false,
    repl: false
  });
}

exports["Relay"] = {
  setUp: function(done) {

    this.board = newBoard();

    this.spy = sinon.spy(this.board.io, "digitalWrite");

    this.relay = new Relay({
      pin: 10,
      board: this.board
    });

    this.proto = [{
      name: "on"
    }, {
      name: "off"
    }, {
      name: "close"
    }, {
      name: "open"
    }, {
      name: "toggle"
    }];

    this.instance = [{
      name: "isOn"
    }, {
      name: "type"
    }];

    done();
  },

  shape: function(test) {
    test.expect(this.proto.length + this.instance.length);

    this.proto.forEach(function(method) {
      test.equal(typeof this.relay[method.name], "function");
    }, this);

    this.instance.forEach(function(property) {
      test.notEqual(typeof this.relay[property.name], "undefined");
    }, this);

    test.done();
  },

  NC: function(test) {
    test.expect(2);

    // NC should send inverted values
    this.relay = new Relay({
      pin: 10,
      type: "NC",
      board: this.board
    });

    this.relay.on();
    test.ok(this.spy.calledWith(10, 0));

    this.relay.off();
    test.ok(this.spy.calledWith(10, 1));

    test.done();
  },

  on: function(test) {
    test.expect(1);

    this.relay.on();
    test.ok(this.spy.calledWith(10, 1));

    test.done();
  },

  off: function(test) {
    test.expect(1);

    this.relay.off();
    test.ok(this.spy.calledWith(10, 0));

    test.done();
  },

  close: function(test) {
    test.expect(1);

    test.equal(Relay.prototype.close, Relay.prototype.on);

    test.done();
  },

  open: function(test) {
    test.expect(1);

    test.equal(Relay.prototype.open, Relay.prototype.off);

    test.done();
  },

  toggle: function(test) {
    test.expect(2);

    this.relay.off();
    this.relay.toggle();

    test.ok(this.spy.calledWith(10, 1));

    this.relay.toggle();
    test.ok(this.spy.calledWith(10, 0));

    test.done();
  },

  tearDown: function(done) {
    done();
  }
};