Add test coverage for build / usage / teardown

docs/examples/tutorial/rectangle_cpp/rect.pyx

@@ -36,11 +36,35 @@ cdef class PyRectangle:
     @property
     def x0(self):
         return self.c_rect.x0
-
     @x0.setter
     def x0(self, x0):
         self.c_rect.x0 = x0
 
+    # Attribute access
+    @property
+    def x1(self):
+        return self.c_rect.x1
+    @x1.setter
+    def x1(self, x1):
+        self.c_rect.x1 = x1
+
+
+    # Attribute access
+    @property
+    def y0(self):
+        return self.c_rect.y0
+    @y0.setter
+    def y0(self, y0):
+        self.c_rect.y0 = y0
+
+    # Attribute access
+    @property
+    def y1(self):
+        return self.c_rect.y1
+    @y1.setter
+    def y1(self, y1):
+        self.c_rect.y1 = y1
+
 
 def main():
     rec_ptr = new Rectangle(1, 2, 3, 4)  # Instantiate a Rectangle object on the heap

docs/examples/tutorial/rectangle_cpp/test.py

+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+import sys
+import unittest
+import os
+
+
+class TestRectangleCppExtension(unittest.TestCase):
+    def setUp(self):
+        self.directory_at_runtime = os.listdir()
+        os.system("python setup.py build_ext --inplace")
+        import rect
+        self.x0, self.y0, self.x1, self.y1 = 1, 2, 3, 4
+        self.rect_obj = rect.PyRectangle(self.x0, self.y0, self.x1, self.y1)
+
+    def test_get_area(self):
+        width = self.x1 - self.x0
+        height = self.y1 - self.y0
+        area = width * height
+        self.assertEqual(
+                self.rect_obj.get_area(),
+                area)
+
+    def test_get_size(self):
+        true_width = self.x1 - self.x0
+        true_height = self.y1 - self.y0
+        width, height = self.rect_obj.get_size()
+        self.assertEqual(true_width, width)
+        self.assertEqual(true_height, height)
+
+    def test_move(self):
+        x0, x1 = self.rect_obj.x0, self.rect_obj.x1
+        y0, y1 = self.rect_obj.y0, self.rect_obj.y1
+        dx, dy = 10, 5
+        self.rect_obj.move(dx, dy)
+        self.assertEqual(
+                (x0+dx, x1+dx, y0+dy, y1+dy),
+                (self.rect_obj.x0, self.rect_obj.x1,
+                    self.rect_obj.y0, self.rect_obj.y1))
+
+    def tearDown(self):
+        files_to_remove = [f for f in os.listdir()
+                                if f not in self.directory_at_runtime]
+        for f in files_to_remove:
+            if os.path.isfile(f):
+                os.remove(f)
+            elif os.path.isdir(f):
+                os.system("rm -rf {}".format(f))
+
+
+if __name__ == "__main__":
+    unittest.main()
+