Testing tests

tests/__init__.py

@@ -0,0 +1 @@
+import ziffers

tests/run_tests.py

@@ -0,0 +1,13 @@
+import pytest
+from ziffers import *
+
+@pytest.mark.parametrize(
+    "pattern",
+    [
+        "1 2 3",
+        "(1 (2 3))"
+        "q 2 q2 eq.4"
+    ],
+)
+def test_list_arithmetic(pattern: str):
+    assert parse_expression(pattern).text == pattern