python-mastery/Solutions/7_3/teststock.py
2023-07-16 20:21:00 -05:00

71 lines
2.0 KiB
Python

# teststock.py
import stock
import unittest
class TestStock(unittest.TestCase):
def test_create(self):
s = stock.Stock('GOOG', 100, 490.1)
self.assertEqual(s.name, 'GOOG')
self.assertEqual(s.shares, 100)
self.assertEqual(s.price, 490.1)
def test_create_keyword(self):
s = stock.Stock(name='GOOG', shares=100, price=490.1)
self.assertEqual(s.name, 'GOOG')
self.assertEqual(s.shares, 100)
self.assertEqual(s.price, 490.1)
def test_cost(self):
s = stock.Stock('GOOG', 100, 490.1)
self.assertEqual(s.cost, 49010.0)
def test_sell(self):
s = stock.Stock('GOOG', 100, 490.1)
s.sell(25)
self.assertEqual(s.shares, 75)
def test_from_row(self):
s = stock.Stock.from_row(['GOOG','100','490.1'])
self.assertEqual(s.name, 'GOOG')
self.assertEqual(s.shares, 100)
self.assertEqual(s.price, 490.1)
def test_repr(self):
s = stock.Stock('GOOG', 100, 490.1)
self.assertEqual(repr(s), "Stock('GOOG', 100, 490.1)")
def test_eq(self):
a = stock.Stock('GOOG', 100, 490.1)
b = stock.Stock('GOOG', 100, 490.1)
self.assertTrue(a==b)
# Tests for failure conditions
def test_shares_badtype(self):
s = stock.Stock('GOOG', 100, 490.1)
with self.assertRaises(TypeError):
s.shares = '50'
def test_shares_badvalue(self):
s = stock.Stock('GOOG', 100, 490.1)
with self.assertRaises(ValueError):
s.shares = -50
def test_price_badtype(self):
s = stock.Stock('GOOG', 100, 490.1)
with self.assertRaises(TypeError):
s.price = '45.23'
def test_price_badvalue(self):
s = stock.Stock('GOOG', 100, 490.1)
with self.assertRaises(ValueError):
s.price = -45.23
def test_bad_attribute(self):
s = stock.Stock('GOOG', 100, 490.1)
with self.assertRaises(AttributeError):
s.share = 100
if __name__ == '__main__':
unittest.main()