Create test_a02.py

Add 2nd test

Author: diogenisAl

03_Code/test_a02.py

@@ -0,0 +1,8 @@
+import pytest
+from Calc import Calculator
+
+# ...
+def test_03():
+    a = Calculator(1,2)
+    """ Check that plus(1,2) = 3 """
+    assert a.plus() == 3