add test for get_eval_value

test/test_context.py

@@ -188,3 +188,27 @@ class VariableBindsUnittest(unittest.TestCase):
         self.assertEqual(len(parsed_request["headers"]["random"]), 5)
         self.assertIn("data", parsed_request)
         self.assertEqual(parsed_request["data"], testcase["variable_binds"][2]["data"])
+
+    def test_get_eval_value(self):
+        self.context.testcase_variables_mapping = {
+            "str_1": "str_value1",
+            "str_2": "str_value2"
+        }
+        self.assertEqual(self.context.get_eval_value("${str_1}"), "str_value1")
+        self.assertEqual(self.context.get_eval_value("${str_2}"), "str_value2")
+        self.assertEqual(
+            self.context.get_eval_value(["${str_1}", "str3"]),
+            ["str_value1", "str3"]
+        )
+        self.assertEqual(
+            self.context.get_eval_value({"key": "${str_1}"}),
+            {"key": "str_value1"}
+        )
+
+        import random, string
+        self.context.testcase_config["functions"]["gen_random_string"] = \
+            lambda str_len: ''.join(random.choice(string.ascii_letters + string.digits) \
+                for _ in range(str_len))
+        result = self.context.get_eval_value(
+            {"func": "gen_random_string", "args": [5]})
+        self.assertEqual(len(result), 5)