client_test.py

import unittest
from client3 import getDataPoint, getRatio


class ClientTest(unittest.TestCase):
  def test_getDataPoint_calculatePrice(self):
    quotes = [
      {'top_ask': {'price': 121.2, 'size': 36}, 'timestamp': '2019-02-11 22:06:30.572453', 'top_bid': {'price': 120.48, 'size': 109}, 'id': '0.109974697771', 'stock': 'ABC'},
      {'top_ask': {'price': 121.68, 'size': 4}, 'timestamp': '2019-02-11 22:06:30.572453', 'top_bid': {'price': 117.87, 'size': 81}, 'id': '0.109974697771', 'stock': 'DEF'}
    ]
    """ ------------ Add the assertion below ------------ """
    for quote in quotes:
      self.assertEqual(getDataPoint(quote), (
      (quote["stock"], quote['top_bid']['price'], quote['top_ask']['price'], (quote['top_bid']['price'] +
                                                                              quote['top_ask']['price']) / 2)))

  def test_getDataPoint_calculatePriceBidGreaterThanAsk(self):
    quotes = [
      {'top_ask': {'price': 119.2, 'size': 36}, 'timestamp': '2019-02-11 22:06:30.572453', 'top_bid': {'price': 120.48, 'size': 109}, 'id': '0.109974697771', 'stock': 'ABC'},
      {'top_ask': {'price': 121.68, 'size': 4}, 'timestamp': '2019-02-11 22:06:30.572453', 'top_bid': {'price': 117.87, 'size': 81}, 'id': '0.109974697771', 'stock': 'DEF'}
    ]
    """ ------------ Add the assertion below ------------ """
    for quote in quotes:
      self.assertEqual(getDataPoint(quote), (
      (quote["stock"], quote['top_bid']['price'], quote['top_ask']['price'], (quote['top_bid']['price'] +
                                                                              quote['top_ask']['price']) / 2)))


  """ ------------ Add more unit tests ------------ """

  def test_getRatio(self):
    prices = [121.2, 121.68, 119.2, 121.68, 117.7, 119.1, 120.09, 118.8, 120.45, 145.56, 0, 34.4]
    for i in range(0, len(prices), 2):
      self.assertEqual((prices[i] / prices[i + 1]), getRatio(prices[i], prices[i + 1]))

  def test_getRatio_zeroDivisionError(self):
    self.assertEqual(None, getRatio(121.1, 0))



if __name__ == '__main__':
    unittest.main()