diff --git a/source/load_mod_from_source_code.py b/source/load_mod_from_source_code.py
index b2204a5..a9a87b1 100644
--- a/source/load_mod_from_source_code.py
+++ b/source/load_mod_from_source_code.py
@@ -1,4 +1,4 @@
 sc = "a=b"
-my_name_space = {}
+my_name_space = {"b": "b"}
 exec(sc, my_name_space)
-print(my_name_space['a'])
\ No newline at end of file
+print(my_name_space['a'])
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+
diff --git a/tests/test_load_mod_from_source_code.py b/tests/test_load_mod_from_source_code.py
new file mode 100644
index 0000000..230a0a8
--- /dev/null
+++ b/tests/test_load_mod_from_source_code.py
@@ -0,0 +1,24 @@
+import subprocess
+import sys
+import unittest
+from pathlib import Path
+
+
+class LoadModFromSourceCodeTestCase(unittest.TestCase):
+    def test_example_runs_and_prints_loaded_value(self):
+        repo_root = Path(__file__).resolve().parents[1]
+
+        result = subprocess.run(
+            [sys.executable, str(repo_root / "source" / "load_mod_from_source_code.py")],
+            check=False,
+            capture_output=True,
+            text=True,
+        )
+
+        self.assertEqual("", result.stderr)
+        self.assertEqual(0, result.returncode)
+        self.assertEqual("b\n", result.stdout)
+
+
+if __name__ == "__main__":
+    unittest.main()