diff --git a/test/unit/test_base_context.py b/test/unit/test_base_context.py
new file mode 100644
index 00000000000..462323de5d7
--- /dev/null
+++ b/test/unit/test_base_context.py
@@ -0,0 +1,12 @@
+from dbt.context.base import BaseContext
+from jinja2.runtime import Undefined
+
+
+class TestBaseContext:
+    def test_log_jinja_undefined(self):
+        # regression test for CT-2259
+        try:
+            os.environ["DBT_ENV_SECRET_LOG_TEST"] = "cats_are_cool"
+            BaseContext.log(msg=Undefined(), info=True)
+        except Exception as e:
+            assert False, f"Logging an jinja2.Undefined object raises an exception: {e}"