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Convert test_ast to unittest and add a test for r62049.

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This commit is contained in:
Georg Brandl 2008-03-30 07:09:22 +00:00
parent c52ed59473
commit ebc8dedd19
1 changed files with 61 additions and 34 deletions
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95
Lib/test/test_ast.py
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@ -1,4 +1,5 @@
import sys, itertools
import sys, itertools, unittest
from test import test_support
import _ast
def to_tuple(t):
@ -15,6 +16,7 @@ def to_tuple(t):
result.append(to_tuple(getattr(t, f)))
return tuple(result)
# These tests are compiled through "exec"
# There should be atleast one test per statement
exec_tests = [
@ -118,41 +120,66 @@ eval_tests = [
# TODO: expr_context, slice, boolop, operator, unaryop, cmpop, comprehension
# excepthandler, arguments, keywords, alias
if __name__=='__main__' and sys.argv[1:] == ['-g']:
for statements, kind in ((exec_tests, "exec"), (single_tests, "single"),
(eval_tests, "eval")):
print kind+"_results = ["
for s in statements:
print repr(to_tuple(compile(s, "?", kind, 0x400)))+","
print "]"
print "run_tests()"
raise SystemExit
class AST_Tests(unittest.TestCase):
def test_order(ast_node, parent_pos):
def _assert_order(self, ast_node, parent_pos):
if not isinstance(ast_node, _ast.AST) or ast_node._fields is None:
return
if isinstance(ast_node, (_ast.expr, _ast.stmt, _ast.excepthandler)):
node_pos = (ast_node.lineno, ast_node.col_offset)
self.assert_(node_pos >= parent_pos)
parent_pos = (ast_node.lineno, ast_node.col_offset)
for name in ast_node._fields:
value = getattr(ast_node, name)
if isinstance(value, list):
for child in value:
self._assert_order(child, parent_pos)
elif value is not None:
self._assert_order(value, parent_pos)
if not isinstance(ast_node, _ast.AST) or ast_node._fields is None:
def test_snippets(self):
for input, output, kind in ((exec_tests, exec_results, "exec"),
(single_tests, single_results, "single"),
(eval_tests, eval_results, "eval")):
for i, o in itertools.izip(input, output):
ast_tree = compile(i, "?", kind, _ast.PyCF_ONLY_AST)
self.assertEquals(to_tuple(ast_tree), o)
self._assert_order(ast_tree, (0, 0))
def test_nodeclasses(self):
x = _ast.BinOp(1, 2, 3, lineno=0)
self.assertEquals(x.left, 1)
self.assertEquals(x.op, 2)
self.assertEquals(x.right, 3)
self.assertEquals(x.lineno, 0)
# node raises exception when not given enough arguments
self.assertRaises(TypeError, _ast.BinOp, 1, 2)
# can set attributes through kwargs too
x = _ast.BinOp(left=1, op=2, right=3, lineno=0)
self.assertEquals(x.left, 1)
self.assertEquals(x.op, 2)
self.assertEquals(x.right, 3)
self.assertEquals(x.lineno, 0)
def test_main():
test_support.run_unittest(AST_Tests)
def main():
if __name__ != '__main__':
return
if isinstance(ast_node, (_ast.expr, _ast.stmt, _ast.excepthandler)):
node_pos = (ast_node.lineno, ast_node.col_offset)
assert node_pos >= parent_pos, (node_pos, parent_pos)
parent_pos = (ast_node.lineno, ast_node.col_offset)
for name in ast_node._fields:
value = getattr(ast_node, name)
if isinstance(value, list):
for child in value:
test_order(child, parent_pos)
elif value is not None:
test_order(value, parent_pos)
def run_tests():
for input, output, kind in ((exec_tests, exec_results, "exec"),
(single_tests, single_results, "single"),
(eval_tests, eval_results, "eval")):
for i, o in itertools.izip(input, output):
ast_tree = compile(i, "?", kind, 0x400)
print to_tuple(ast_tree), o
assert to_tuple(ast_tree) == o
test_order(ast_tree, (0, 0))
if sys.argv[1:] == ['-g']:
for statements, kind in ((exec_tests, "exec"), (single_tests, "single"),
(eval_tests, "eval")):
print kind+"_results = ["
for s in statements:
print repr(to_tuple(compile(s, "?", kind, 0x400)))+","
print "]"
print "main()"
raise SystemExit
test_main()
#### EVERYTHING BELOW IS GENERATED #####
exec_results = [
@ -202,4 +229,4 @@ eval_results = [
('Expression', ('Tuple', (1, 0), [('Num', (1, 0), 1), ('Num', (1, 2), 2), ('Num', (1, 4), 3)], ('Load',))),
('Expression', ('Call', (1, 0), ('Attribute', (1, 0), ('Attribute', (1, 0), ('Attribute', (1, 0), ('Name', (1, 0), 'a', ('Load',)), 'b', ('Load',)), 'c', ('Load',)), 'd', ('Load',)), [('Subscript', (1, 8), ('Attribute', (1, 8), ('Name', (1, 8), 'a', ('Load',)), 'b', ('Load',)), ('Slice', ('Num', (1, 12), 1), ('Num', (1, 14), 2), None), ('Load',))], [], None, None)),
]
run_tests()
main()