Showing content from http://svn.python.org/projects/python/branches/release24-maint/Lib/test/test_transformer.py below:
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, ' ', '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()
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