Tests. Well, test.

2024-06-15 06:14:37 -07:00 · 2024-06-15 06:14:37 -07:00 · fb2dff51df
commit fb2dff51df
parent 3483d99a7d
2 changed files with 18 additions and 0 deletions
--- a/tests/init.py
+++ b/tests/init.py
--- a/tests/test_grammar.py
+++ b/tests/test_grammar.py
@ -0,0 +1,18 @@
+import parser
+import pytest
+
+
+def test_conflicting_names():
+    """Terminals and nonterminals can have the same name."""
+
+    IDENTIFIER = parser.Terminal("Identifier")
+
+    class TestGrammar(parser.Grammar):
+        start = "Identifier"
+
+        @parser.rule("Identifier")
+        def identifier(self):
+            return IDENTIFIER
+
+    with pytest.raises(ValueError):
+        TestGrammar().build_table()