diff --git a/tests/test_scheme.py b/tests/test_scheme.py
new file mode 100644
index 0000000..cc576e7
--- /dev/null
+++ b/tests/test_scheme.py
@@ -0,0 +1,15 @@
+"""
+Test scheme parsing.
+"""
+from map_machine.scheme import Scheme
+
+
+def test_verification() -> None:
+    assert (
+        Scheme({"node_icons": [{"tags": {"a": "b"}}]}).node_matchers[0].verify()
+        is True
+    )
+    assert (
+        Scheme({"node_icons": [{"tags": {"a": 0}}]}).node_matchers[0].verify()
+        is False
+    )