--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_ast.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,340 @@
+import sys, itertools, unittest
+from test import test_support
+import ast
+
+def to_tuple(t):
+ if t is None or isinstance(t, (basestring, int, long, complex)):
+ return t
+ elif isinstance(t, list):
+ return [to_tuple(e) for e in t]
+ result = [t.__class__.__name__]
+ if hasattr(t, 'lineno') and hasattr(t, 'col_offset'):
+ result.append((t.lineno, t.col_offset))
+ if t._fields is None:
+ return tuple(result)
+ for f in t._fields:
+ 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 = [
+ # FunctionDef
+ "def f(): pass",
+ # ClassDef
+ "class C:pass",
+ # Return
+ "def f():return 1",
+ # Delete
+ "del v",
+ # Assign
+ "v = 1",
+ # AugAssign
+ "v += 1",
+ # Print
+ "print >>f, 1, ",
+ # For
+ "for v in v:pass",
+ # While
+ "while v:pass",
+ # If
+ "if v:pass",
+ # Raise
+ "raise Exception, 'string'",
+ # TryExcept
+ "try:\n pass\nexcept Exception:\n pass",
+ # TryFinally
+ "try:\n pass\nfinally:\n pass",
+ # Assert
+ "assert v",
+ # Import
+ "import sys",
+ # ImportFrom
+ "from sys import v",
+ # Exec
+ "exec 'v'",
+ # Global
+ "global v",
+ # Expr
+ "1",
+ # Pass,
+ "pass",
+ # Break
+ "break",
+ # Continue
+ "continue",
+]
+
+# These are compiled through "single"
+# because of overlap with "eval", it just tests what
+# can't be tested with "eval"
+single_tests = [
+ "1+2"
+]
+
+# These are compiled through "eval"
+# It should test all expressions
+eval_tests = [
+ # BoolOp
+ "a and b",
+ # BinOp
+ "a + b",
+ # UnaryOp
+ "not v",
+ # Lambda
+ "lambda:None",
+ # Dict
+ "{ 1:2 }",
+ # ListComp
+ "[a for b in c if d]",
+ # GeneratorExp
+ "(a for b in c if d)",
+ # Yield - yield expressions can't work outside a function
+ #
+ # Compare
+ "1 < 2 < 3",
+ # Call
+ "f(1,2,c=3,*d,**e)",
+ # Repr
+ "`v`",
+ # Num
+ "10L",
+ # Str
+ "'string'",
+ # Attribute
+ "a.b",
+ # Subscript
+ "a[b:c]",
+ # Name
+ "v",
+ # List
+ "[1,2,3]",
+ # Tuple
+ "1,2,3",
+ # Combination
+ "a.b.c.d(a.b[1:2])",
+
+]
+
+# TODO: expr_context, slice, boolop, operator, unaryop, cmpop, comprehension
+# excepthandler, arguments, keywords, alias
+
+class AST_Tests(unittest.TestCase):
+
+ 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)
+
+ 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)
+
+ # this used to fail because Sub._fields was None
+ x = ast.Sub()
+
+ def test_pickling(self):
+ import pickle
+ mods = [pickle]
+ try:
+ import cPickle
+ mods.append(cPickle)
+ except ImportError:
+ pass
+ protocols = [0, 1, 2]
+ for mod in mods:
+ for protocol in protocols:
+ for ast in (compile(i, "?", "exec", 0x400) for i in exec_tests):
+ ast2 = mod.loads(mod.dumps(ast, protocol))
+ self.assertEquals(to_tuple(ast2), to_tuple(ast))
+
+
+class ASTHelpers_Test(unittest.TestCase):
+
+ def test_parse(self):
+ a = ast.parse('foo(1 + 1)')
+ b = compile('foo(1 + 1)', '<unknown>', 'exec', ast.PyCF_ONLY_AST)
+ self.assertEqual(ast.dump(a), ast.dump(b))
+
+ def test_dump(self):
+ node = ast.parse('spam(eggs, "and cheese")')
+ self.assertEqual(ast.dump(node),
+ "Module(body=[Expr(value=Call(func=Name(id='spam', ctx=Load()), "
+ "args=[Name(id='eggs', ctx=Load()), Str(s='and cheese')], "
+ "keywords=[], starargs=None, kwargs=None))])"
+ )
+ self.assertEqual(ast.dump(node, annotate_fields=False),
+ "Module([Expr(Call(Name('spam', Load()), [Name('eggs', Load()), "
+ "Str('and cheese')], [], None, None))])"
+ )
+ self.assertEqual(ast.dump(node, include_attributes=True),
+ "Module(body=[Expr(value=Call(func=Name(id='spam', ctx=Load(), "
+ "lineno=1, col_offset=0), args=[Name(id='eggs', ctx=Load(), "
+ "lineno=1, col_offset=5), Str(s='and cheese', lineno=1, "
+ "col_offset=11)], keywords=[], starargs=None, kwargs=None, "
+ "lineno=1, col_offset=0), lineno=1, col_offset=0)])"
+ )
+
+ def test_copy_location(self):
+ src = ast.parse('1 + 1', mode='eval')
+ src.body.right = ast.copy_location(ast.Num(2), src.body.right)
+ self.assertEqual(ast.dump(src, include_attributes=True),
+ 'Expression(body=BinOp(left=Num(n=1, lineno=1, col_offset=0), '
+ 'op=Add(), right=Num(n=2, lineno=1, col_offset=4), lineno=1, '
+ 'col_offset=0))'
+ )
+
+ def test_fix_missing_locations(self):
+ src = ast.parse('write("spam")')
+ src.body.append(ast.Expr(ast.Call(ast.Name('spam', ast.Load()),
+ [ast.Str('eggs')], [], None, None)))
+ self.assertEqual(src, ast.fix_missing_locations(src))
+ self.assertEqual(ast.dump(src, include_attributes=True),
+ "Module(body=[Expr(value=Call(func=Name(id='write', ctx=Load(), "
+ "lineno=1, col_offset=0), args=[Str(s='spam', lineno=1, "
+ "col_offset=6)], keywords=[], starargs=None, kwargs=None, "
+ "lineno=1, col_offset=0), lineno=1, col_offset=0), "
+ "Expr(value=Call(func=Name(id='spam', ctx=Load(), lineno=1, "
+ "col_offset=0), args=[Str(s='eggs', lineno=1, col_offset=0)], "
+ "keywords=[], starargs=None, kwargs=None, lineno=1, "
+ "col_offset=0), lineno=1, col_offset=0)])"
+ )
+
+ def test_increment_lineno(self):
+ src = ast.parse('1 + 1', mode='eval')
+ self.assertEqual(ast.increment_lineno(src, n=3), src)
+ self.assertEqual(ast.dump(src, include_attributes=True),
+ 'Expression(body=BinOp(left=Num(n=1, lineno=4, col_offset=0), '
+ 'op=Add(), right=Num(n=1, lineno=4, col_offset=4), lineno=4, '
+ 'col_offset=0))'
+ )
+
+ def test_iter_fields(self):
+ node = ast.parse('foo()', mode='eval')
+ d = dict(ast.iter_fields(node.body))
+ self.assertEqual(d.pop('func').id, 'foo')
+ self.assertEqual(d, {'keywords': [], 'kwargs': None,
+ 'args': [], 'starargs': None})
+
+ def test_iter_child_nodes(self):
+ node = ast.parse("spam(23, 42, eggs='leek')", mode='eval')
+ self.assertEqual(len(list(ast.iter_child_nodes(node.body))), 4)
+ iterator = ast.iter_child_nodes(node.body)
+ self.assertEqual(next(iterator).id, 'spam')
+ self.assertEqual(next(iterator).n, 23)
+ self.assertEqual(next(iterator).n, 42)
+ self.assertEqual(ast.dump(next(iterator)),
+ "keyword(arg='eggs', value=Str(s='leek'))"
+ )
+
+ def test_get_docstring(self):
+ node = ast.parse('def foo():\n """line one\n line two"""')
+ self.assertEqual(ast.get_docstring(node.body[0]),
+ 'line one\nline two')
+
+ def test_literal_eval(self):
+ self.assertEqual(ast.literal_eval('[1, 2, 3]'), [1, 2, 3])
+ self.assertEqual(ast.literal_eval('{"foo": 42}'), {"foo": 42})
+ self.assertEqual(ast.literal_eval('(True, False, None)'), (True, False, None))
+ self.assertRaises(ValueError, ast.literal_eval, 'foo()')
+
+
+def test_main():
+ test_support.run_unittest(AST_Tests, ASTHelpers_Test)
+
+def main():
+ if __name__ != '__main__':
+ return
+ 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 = [
+('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, None, []), [('Pass', (1, 9))], [])]),
+('Module', [('ClassDef', (1, 0), 'C', [], [('Pass', (1, 8))], [])]),
+('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, None, []), [('Return', (1, 8), ('Num', (1, 15), 1))], [])]),
+('Module', [('Delete', (1, 0), [('Name', (1, 4), 'v', ('Del',))])]),
+('Module', [('Assign', (1, 0), [('Name', (1, 0), 'v', ('Store',))], ('Num', (1, 4), 1))]),
+('Module', [('AugAssign', (1, 0), ('Name', (1, 0), 'v', ('Store',)), ('Add',), ('Num', (1, 5), 1))]),
+('Module', [('Print', (1, 0), ('Name', (1, 8), 'f', ('Load',)), [('Num', (1, 11), 1)], False)]),
+('Module', [('For', (1, 0), ('Name', (1, 4), 'v', ('Store',)), ('Name', (1, 9), 'v', ('Load',)), [('Pass', (1, 11))], [])]),
+('Module', [('While', (1, 0), ('Name', (1, 6), 'v', ('Load',)), [('Pass', (1, 8))], [])]),
+('Module', [('If', (1, 0), ('Name', (1, 3), 'v', ('Load',)), [('Pass', (1, 5))], [])]),
+('Module', [('Raise', (1, 0), ('Name', (1, 6), 'Exception', ('Load',)), ('Str', (1, 17), 'string'), None)]),
+('Module', [('TryExcept', (1, 0), [('Pass', (2, 2))], [('ExceptHandler', (3, 0), ('Name', (3, 7), 'Exception', ('Load',)), None, [('Pass', (4, 2))])], [])]),
+('Module', [('TryFinally', (1, 0), [('Pass', (2, 2))], [('Pass', (4, 2))])]),
+('Module', [('Assert', (1, 0), ('Name', (1, 7), 'v', ('Load',)), None)]),
+('Module', [('Import', (1, 0), [('alias', 'sys', None)])]),
+('Module', [('ImportFrom', (1, 0), 'sys', [('alias', 'v', None)], 0)]),
+('Module', [('Exec', (1, 0), ('Str', (1, 5), 'v'), None, None)]),
+('Module', [('Global', (1, 0), ['v'])]),
+('Module', [('Expr', (1, 0), ('Num', (1, 0), 1))]),
+('Module', [('Pass', (1, 0))]),
+('Module', [('Break', (1, 0))]),
+('Module', [('Continue', (1, 0))]),
+]
+single_results = [
+('Interactive', [('Expr', (1, 0), ('BinOp', (1, 0), ('Num', (1, 0), 1), ('Add',), ('Num', (1, 2), 2)))]),
+]
+eval_results = [
+('Expression', ('BoolOp', (1, 0), ('And',), [('Name', (1, 0), 'a', ('Load',)), ('Name', (1, 6), 'b', ('Load',))])),
+('Expression', ('BinOp', (1, 0), ('Name', (1, 0), 'a', ('Load',)), ('Add',), ('Name', (1, 4), 'b', ('Load',)))),
+('Expression', ('UnaryOp', (1, 0), ('Not',), ('Name', (1, 4), 'v', ('Load',)))),
+('Expression', ('Lambda', (1, 0), ('arguments', [], None, None, []), ('Name', (1, 7), 'None', ('Load',)))),
+('Expression', ('Dict', (1, 0), [('Num', (1, 2), 1)], [('Num', (1, 4), 2)])),
+('Expression', ('ListComp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])),
+('Expression', ('GeneratorExp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])),
+('Expression', ('Compare', (1, 0), ('Num', (1, 0), 1), [('Lt',), ('Lt',)], [('Num', (1, 4), 2), ('Num', (1, 8), 3)])),
+('Expression', ('Call', (1, 0), ('Name', (1, 0), 'f', ('Load',)), [('Num', (1, 2), 1), ('Num', (1, 4), 2)], [('keyword', 'c', ('Num', (1, 8), 3))], ('Name', (1, 11), 'd', ('Load',)), ('Name', (1, 15), 'e', ('Load',)))),
+('Expression', ('Repr', (1, 0), ('Name', (1, 1), 'v', ('Load',)))),
+('Expression', ('Num', (1, 0), 10L)),
+('Expression', ('Str', (1, 0), 'string')),
+('Expression', ('Attribute', (1, 0), ('Name', (1, 0), 'a', ('Load',)), 'b', ('Load',))),
+('Expression', ('Subscript', (1, 0), ('Name', (1, 0), 'a', ('Load',)), ('Slice', ('Name', (1, 2), 'b', ('Load',)), ('Name', (1, 4), 'c', ('Load',)), None), ('Load',))),
+('Expression', ('Name', (1, 0), 'v', ('Load',))),
+('Expression', ('List', (1, 0), [('Num', (1, 1), 1), ('Num', (1, 3), 2), ('Num', (1, 5), 3)], ('Load',))),
+('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)),
+]
+main()