Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/third_party/rust/jsparagus/tests/test_parse_pgen.py b/third_party/rust/jsparagus/tests/test_parse_pgen.py
new file mode 100644
index 0000000000..5052f9069c
--- /dev/null
+++ b/third_party/rust/jsparagus/tests/test_parse_pgen.py
@@ -0,0 +1,33 @@
+import unittest
+
+import jsparagus.gen
+from jsparagus import parse_pgen, parse_pgen_generated
+
+
+class ParsePgenTestCase(unittest.TestCase):
+    def test_self(self):
+        import os
+        filename = os.path.join(os.path.dirname(parse_pgen.__file__), "..",
+                                "pgen.pgen")
+        grammar = parse_pgen.load_grammar(filename)
+        self.maxDiff = None
+        pgen_grammar = parse_pgen.pgen_grammar
+        self.assertEqual(pgen_grammar.nonterminals, grammar.nonterminals)
+        self.assertEqual(pgen_grammar.variable_terminals,
+                         grammar.variable_terminals)
+        self.assertEqual(pgen_grammar.goals(), grammar.goals())
+
+        with open(parse_pgen_generated.__file__) as f:
+            pre_generated = f.read()
+
+        import io
+        out = io.StringIO()
+        jsparagus.gen.generate_parser(out, grammar)
+        generated_from_file = out.getvalue()
+
+        self.maxDiff = None
+        self.assertEqual(pre_generated, generated_from_file)
+
+
+if __name__ == '__main__':
+    unittest.main()