Assignment One tester

tester.js

function assert(msg, expected, result) {

  if (expected !== result) {
    setTimeout(function () {
      var errMsg = "****** ASSERT ERROR ****** " + msg + " { expected " + expected + " !=== " + result + " } ";
      console.log(errMsg);
      //throw new Error(errMsg);
    }, 0);
  } else {
    console.log("\t" + msg + " OK");
  }
}

function test_0_0() {
  var test0 = new UPC("726412175425");
  var test1 = new UPC("235262623623");
  var test2 = new UPC("897654324282");
  var test3 = new UPC("111111111117");
  var test4 = new UPC("222222222224");
}

function test_3_2_1_1() {
  console.log("Executing 3.2.1 UPC Object Test Code Example 1");
  var sample_code = "111111111117",
    upc_with_valid_code = new UPC(sample_code);
  assert("did the code get recorded correctly?", true, (sample_code === upc_with_valid_code.code));
}

function test_3_2_1_2() {
  console.log("Executing 3.2.1 UPC Object Test Code Example 2");

  var sample_code = "111111111111",
    upc_with_invalid_code = new UPC(sample_code);
  assert("is the code empty?", true, ("" === upc_with_invalid_code.code));
  upc_with_invalid_code.set_code("1234", true);
  assert("is invalid upc code set?", true, ("1234" === upc_with_invalid_code.code));
}

function test_3_2_1_3() {
  console.log("Executing 3.2.1 UPC Object Test Code Example 3");

  var upc_with_no_code = new UPC();
  assert("is the code empty?", true, (undefined === upc_with_no_code.code));
  upc_with_no_code.set_code("1234", true);
  assert("is invalid upc code set?", true, ("1234" === upc_with_no_code.code));
  upc_with_no_code.set_code("897654324283");
  assert("is invalid upc code set?", false, ("897654324283" === upc_with_no_code.code));
}

function test_3_3_1_1() {
  console.log("Executing 3.3.1 Product Object Test Code Example 1");

  var empty_product = new Product({});
  //should cause no exceptions.
}

function test_3_3_2_2() {
  console.log("Executing 3.3.2 Product Object Test Code Example 2");

  var product_with_name = new Product({
    "name": "Waterman FP"
  });
  assert("is the name correct?", false,  ("Mont Blanc" === product_with_name.name));
}

function test_3_3_3_3() {
  console.log("Excuting 3.3.3 Product Object Test Code Example 3");

  var full_valid_product = new Product({
    "name": "Waterman FP",
    "price": 12000,
    "upc": new UPC("222222222224"),
    "image_path": "/foo/bar.png"
  });
  assert("is the name correct?", true, ("Waterman FP" === full_valid_product.name));
  assert("is the price correct?", true, (12000 === full_valid_product.price));
  assert("is the upc correct?", true, ("222222222224" === full_valid_product.upc.code));
  assert("is the image_path correct?", true, ("/foo/bar.png" === full_valid_product.image_path));
}

function test_3_3_4() {
  console.log("Executing 3.3.4 Product Object Test Code Example 4");

  var full_product_from_invalid_options = new Product({
    "price": -12000,
    "upc": new UPC("44"),
    "image_path": "/foo/bar.not"
  });
  assert("is the name correct?", true, ("TBD" === full_product_from_invalid_options.name));
  assert("is the price correct?", true, (0 === full_product_from_invalid_options.price));
  assert("is the upc correct?", true, ("" === full_product_from_invalid_options.upc.code));
  assert("is the image_path correct?", true, (undefined === full_product_from_invalid_options.image));
}

function test_3_3_5() {
  console.log("Excuting 3.3.5 Product Object Test Code Example 5");

  var was_listener_called = false,
    example_listener = function (new_price, product) {
      was_listener_called = true
      assert("is the name correct?", true, ("Waterman FP" === product.name));
      assert("is the price correct?", true, (250.00 === new_price));

    },
    product_for_listeners = new Product({
      "name": "Waterman FP",
      "price": 12000,
      "upc": new UPC("222222222224"),
      "image_path": "/foo/bar.png"
    });
  assert("is the name correct?", true, ("Waterman FP" === product_for_listeners.name));
  assert("is the price correct?", true, (12000 === product_for_listeners.price));
  assert("is the upc correct?", true, ("222222222224" === product_for_listeners.upc.code));
  assert("is the image_path correct?", true, ("/foo/bar.png" === product_for_listeners.image_path));
  product_for_listeners.addPriceChangeListener(example_listener);
  product_for_listeners.setPrice(250.00);
  assert("was listener called?", true, was_listener_called);
  assert("is the price correct?", true, (250.00 === product_for_listeners.price));
}

function testAll() {
  test_0_0();
  test_3_2_1_1();
  test_3_2_1_2();
  test_3_2_1_3();
  test_3_3_1_1();
  test_3_3_2_2();
  test_3_3_3_3();
  test_3_3_4();
  test_3_3_5();
}

testAll();