inheritance_exercise_clothing.ipynb

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    "# Inheritance Exercise Clothing\n",
    "\n",
    "The following code contains a Clothing parent class and two children classes: Shirt and Pants.\n",
    "\n",
    "Your job is to code a class called Blouse. Read through the code and fill out the TODOs. Then check your work with the unit tests at the bottom of the code."
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    "class Clothing:\n",
    "\n",
    "    def __init__(self, color, size, style, price):\n",
    "        self.color = color\n",
    "        self.size = size\n",
    "        self.style = style\n",
    "        self.price = price\n",
    "        \n",
    "    def change_price(self, price):\n",
    "        self.price = price\n",
    "        \n",
    "    def calculate_discount(self, discount):\n",
    "        return self.price * (1 - discount)\n",
    "    \n",
    "    def calculate_shipping(self, weight, rate):\n",
    "        return weight * rate\n",
    "\n",
    "        \n",
    "class Shirt(Clothing):\n",
    "    \n",
    "    def __init__(self, color, size, style, price, long_or_short):\n",
    "        \n",
    "        Clothing.__init__(self, color, size, style, price)\n",
    "        self.long_or_short = long_or_short\n",
    "    \n",
    "    def double_price(self):\n",
    "        self.price = 2*self.price\n",
    "    \n",
    "class Pants(Clothing):\n",
    "\n",
    "    def __init__(self, color, size, style, price, waist):\n",
    "        \n",
    "        Clothing.__init__(self, color, size, style, price)\n",
    "        self.waist = waist\n",
    "        \n",
    "    def calculate_discount(self, discount):\n",
    "        return self.price * (1 - discount / 2)\n",
    "    \n",
    "# TODO: Write a class called Blouse, that inherits from the Clothing class\n",
    "# and has the the following attributes and methods:\n",
    "#   attributes: color, size, style, price, country_of_origin\n",
    "#     where country_of_origin is a string that holds the name of a \n",
    "#     country\n",
    "#\n",
    "#   methods: triple_price, which has no inputs and returns three times\n",
    "#     the price of the blouse\n",
    "#\n",
    "#\n",
    "\n",
    "# TODO: Add a method to the clothing class called calculate_shipping.\n",
    "#   The method has two inputs: weight and rate. Weight is a float\n",
    "#   representing the weight of the article of clothing. Rate is a float\n",
    "#   representing the shipping weight. The method returns weight * rate\n",
    "\n",
    "\n",
    "class Blouse(Clothing):\n",
    "    \n",
    "    def __init__(self,color, size, style, price, country_of_origin):\n",
    "        Clothing.__init__(self,color, size, style, price)\n",
    "        self.country_of_origin = country_of_origin\n",
    "    \n",
    "    def triple_price(self):\n",
    "        return self.price * 3\n",
    "    \n",
    "    "
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     "text": [
      "..\n",
      "----------------------------------------------------------------------\n",
      "Ran 2 tests in 0.007s\n",
      "\n",
      "OK\n"
     ]
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       "<unittest.runner.TextTestResult run=2 errors=0 failures=0>"
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   "source": [
    "# Unit tests to check your solution\n",
    "\n",
    "import unittest\n",
    "\n",
    "class TestClothingClass(unittest.TestCase):\n",
    "    def setUp(self):\n",
    "        self.clothing = Clothing('orange', 'M', 'stripes', 35)\n",
    "        self.blouse = Blouse('blue', 'M', 'luxury', 40, 'Brazil')\n",
    "        self.pants = Pants('black', 32, 'baggy', 60, 30)\n",
    "        \n",
    "    def test_initialization(self): \n",
    "        self.assertEqual(self.clothing.color, 'orange', 'color should be orange')\n",
    "        self.assertEqual(self.clothing.price, 35, 'incorrect price')\n",
    "        \n",
    "        self.assertEqual(self.blouse.color, 'blue', 'color should be blue')\n",
    "        self.assertEqual(self.blouse.size, 'M', 'incorrect size')\n",
    "        self.assertEqual(self.blouse.style, 'luxury', 'incorrect style')\n",
    "        self.assertEqual(self.blouse.price, 40, 'incorrect price')\n",
    "        self.assertEqual(self.blouse.country_of_origin, 'Brazil', 'incorrect country of origin')\n",
    "\n",
    "    def test_calculateshipping(self):\n",
    "        self.assertEqual(self.clothing.calculate_shipping(.5, 3), .5 * 3,\\\n",
    "         'Clothing shipping calculation not as expected') \n",
    "\n",
    "        self.assertEqual(self.blouse.calculate_shipping(.5, 3), .5 * 3,\\\n",
    "         'Clothing shipping calculation not as expected') \n",
    "    \n",
    "tests = TestClothingClass()\n",
    "\n",
    "tests_loaded = unittest.TestLoader().loadTestsFromModule(tests)\n",
    "\n",
    "unittest.TextTestRunner().run(tests_loaded)"
   ]
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