Add tests

Author: jakobnissen

tests/__init__.py

@@ -0,0 +1,13 @@
+import unittest
+from mockup.mockup import Circle
+
+
+class TestCircle(unittest.TestCase):
+    def test_basics(self):
+        x = Circle(1)
+        self.assertEqual(x.radius, 1.0)
+        self.assertEqual(x.diameter, 2.0)
+
+    def test_circumference(self):
+        x = Circle.from_circumference(19)
+        self.assertAlmostEqual(x.radius, 19 / (2 * 3.14159))