ex5.6

teststock.py

@@ -0,0 +1,72 @@
+import unittest
+
+import stock
+
+
+class TestStock(unittest.TestCase):
+    def test_create(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        self.assertEquals(s.name, "GOOG")
+        self.assertEquals(s.shares, 100)
+        self.assertEquals(s.price, 490.1)
+
+    def test_create_keyword(self):
+        s = stock.Stock(name="GOOG", shares=100, price=490.1)
+        self.assertEquals(s.name, "GOOG")
+        self.assertEquals(s.shares, 100)
+        self.assertEquals(s.price, 490.1)
+
+    def test_from_row(self):
+        s = stock.Stock.from_row(("GOOG", 100, 490.1))
+        self.assertEquals(s.name, "GOOG")
+        self.assertEquals(s.shares, 100)
+        self.assertEquals(s.price, 490.1)
+
+    def test_cost(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        self.assertEquals(s.cost, 49010)
+
+    def test_sell(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        s.sell(50)
+        self.assertEqual(s.shares, 50)
+
+    def test_repr(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        self.assertEquals(repr(s), "Stock('GOOG', 100, 490.1)")
+
+    def test_eq(self):
+        s1 = stock.Stock("GOOG", 100, 490.1)
+        s2 = stock.Stock("GOOG", 100, 490.1)
+        s3 = stock.Stock("GOOG", 50, 490.1)
+        self.assertEqual(s1, s2)
+        self.assertNotEqual(s1, s3)
+
+    def test_shares_type(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        with self.assertRaises(TypeError):
+            s.shares = "50"
+
+    def test_shares_value(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        with self.assertRaises(ValueError):
+            s.shares = -50
+
+    def test_price_type(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        with self.assertRaises(TypeError):
+            s.price = "50"
+
+    def test_price_value(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        with self.assertRaises(ValueError):
+            s.price = -90.9
+
+    def test_bad_attr(self):
+        s = stock.Stock("GOOG", 100, 490.1)
+        with self.assertRaises(AttributeError):
+            s.share = "foo"
+
+
+if __name__ == "__main__":
+    unittest.main()