add hg and python

1 files changed, 35 insertions, 0 deletions

diff --git a/sys/lib/python/test/test_transformer.py b/sys/lib/python/test/test_transformer.py
new file mode 100644
index 000000000..909cda518
--- /dev/null
+++ b/sys/lib/python/test/test_transformer.py
@@ -0,0 +1,35 @@
+import unittest
+from test import test_support
+from compiler import transformer, ast
+from compiler import compile
+
+class Tests(unittest.TestCase):
+
+    def testMultipleLHS(self):
+        """ Test multiple targets on the left hand side. """
+
+        snippets = ['a, b = 1, 2',
+                    '(a, b) = 1, 2',
+                    '((a, b), c) = (1, 2), 3']
+
+        for s in snippets:
+            a = transformer.parse(s)
+            assert isinstance(a, ast.Module)
+            child1 = a.getChildNodes()[0]
+            assert isinstance(child1, ast.Stmt)
+            child2 = child1.getChildNodes()[0]
+            assert isinstance(child2, ast.Assign)
+
+            # This actually tests the compiler, but it's a way to assure the ast
+            # is correct
+            c = compile(s, '<string>', 'single')
+            vals = {}
+            exec c in vals
+            assert vals['a'] == 1
+            assert vals['b'] == 2
+
+def test_main():
+    test_support.run_unittest(Tests)
+
+if __name__ == "__main__":
+    test_main()