Fixed #18 : Parsing and evaluating Python

tests/non_reg/test_non_reg1.py

@@ -0,0 +1,18 @@
+from base import BaseTest
+
+
+class TestNonReg1(BaseTest):
+
+    def test_i_can_evaluate_python(self, sheerka, user):
+        res = sheerka.evaluate_user_input("1 + 1", user)
+        assert len(res) == 1
+        ret_val = res[0]
+        assert ret_val.status is True
+        assert ret_val.value == 2
+
+    def test_i_can_evaluate_variable_that_is_not_defined(self, sheerka, user):
+        res = sheerka.evaluate_user_input("a", user)
+        assert len(res) == 1
+        ret_val = res[0]
+
+        assert ret_val.status is False