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355 lines (272 loc) · 8.55 KB
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#####################################################################################
#
# Copyright (c) Microsoft Corporation. All rights reserved.
#
# This source code is subject to terms and conditions of the Apache License, Version 2.0. A
# copy of the license can be found in the License.html file at the root of this distribution. If
# you cannot locate the Apache License, Version 2.0, please send an email to
# ironpy@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
# by the terms of the Apache License, Version 2.0.
#
# You must not remove this notice, or any other, from this software.
#
#
#####################################################################################
from iptest.assert_util import *
##
## to test how exec related to globals/locals
##
def _contains(large, small):
for (key, value) in small.items():
Assert(large[key] == value)
def _not_contains(dict, *keylist):
for key in keylist:
Assert(not dict.has_key(key))
## exec without in something
x = 1
y = "hello"
_contains(globals(), {"x":1, "y":"hello"})
_contains(locals(), {"x":1, "y":"hello"})
exec "x, y"
_contains(globals(), {"x":1, "y":"hello"})
_contains(locals(), {"x":1, "y":"hello"})
## exec with custom globals
# -- use global x, y; assign
g1 = {'x':2, 'y':'world'}
exec "global x; x, y; x = 4" in g1
_contains(globals(), {"x":1, "y":"hello"})
_contains(locals(), {"x":1, "y":"hello"})
_contains(g1, {"x":4, "y":"world"})
exec "global x; x, y; x = x + 4" in g1
_contains(g1, {"x":8})
# -- declare global
exec "global z" in g1
_not_contains(globals(), 'z')
_not_contains(locals(), 'z')
_not_contains(g1, 'z')
# -- new global
exec "global z; z = -1" in g1
_not_contains(globals(), 'z')
_not_contains(locals(), 'z')
_contains(g1, {'z':-1})
# y is missing in g2
g2 = {'x':3}
try:
exec "x, y" in g2
except NameError: pass
else: Assert(False, "should throw NameError exception")
exec "y = 'ironpython'" in g2
_contains(g2, {"x":3, "y":"ironpython"})
_contains(globals(), {"y":"hello"})
_contains(locals(), {"y":"hello"})
## exec with custom globals, locals
g = {'x': -1, 'y': 'python' }
l = {}
# use global
exec "if x != -1: throw" in g, l
exec "if y != 'python': throw" in g, l
_not_contains(l, 'x', 'y')
# new local
exec "x = 20; z = 2" in g, l
_contains(g, {"x":-1, "y":"python"})
_contains(l, {"x":20, "z":2})
# changes
exec "global y; y = y.upper(); z = -2" in g, l
_contains(g, {'x': -1, 'y': 'PYTHON'})
_contains(l, {'x': 20, 'z': -2})
# new global
exec "global w; w = -2" in g, l
_contains(g, {'x': -1, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 20, 'z': -2})
# x in both g and l; use it
exec "global x; x = x - 1" in g, l
_contains(g, {'x': -2, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 20, 'z': -2})
exec "x = x + 1" in g, l
_contains(g, {'x': -2, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 21, 'z': -2})
## Inside Function: same as last part of previous checks
def InsideFunc():
g = {'x': -1, 'y': 'python' }
l = {}
# use global
exec "if x != -1: throw" in g, l
exec "if y != 'python': throw" in g, l
_not_contains(l, 'x', 'y')
# new local
exec "x = 20; z = 2" in g, l
_contains(g, {"x":-1, "y":"python"})
_contains(l, {"x":20, "z":2})
# changes
exec "global y; y = y.upper(); z = -2" in g, l
_contains(g, {'x': -1, 'y': 'PYTHON'})
_contains(l, {'x': 20, 'z': -2})
# new global
exec "global w; w = -2" in g, l
_contains(g, {'x': -1, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 20, 'z': -2})
# x in both g and l; use it
exec "global x; x = x - 1" in g, l
_contains(g, {'x': -2, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 20, 'z': -2})
exec "x = x + 1" in g, l
_contains(g, {'x': -2, 'y': 'PYTHON', 'w': -2})
_contains(l, {'x': 21, 'z': -2})
InsideFunc()
unique_global_name = 987654321
class C:
exec 'a = unique_global_name'
exec "if unique_global_name != 987654321: raise AssertionError('cannott see unique_global_name')"
AreEqual(C.a, 987654321)
def f():
exec "if unique_global_name != 987654321: raise AssertionError('cannot see unique_global_name')"
def g(): exec "if unique_global_name != 987654321: raise AssertionError('cannot see unique_global_name')"
g()
f()
# exec tests
# verify passing a bad value throws...
try:
exec(3)
except TypeError: pass
else: Fail("Should already thrown (3)")
# verify exec(...) takes a code object
codeobj = compile ('1+1', '<compiled code>', 'exec')
exec(codeobj)
if is_silverlight==False:
# verify exec(...) takes a file...
fn = path_combine(testpath.temporary_dir, 'testfile.tmp')
write_to_file(fn, "x = [1,2,3,4,5]\nx.reverse()\nAssert(x == [5,4,3,2,1])\n")
f = file(fn, "r")
exec(f)
Assert(x == [5,4,3,2,1])
f.close()
# and now verify it'll take a .NET Stream as well...
if is_cli:
import System
f = System.IO.FileStream(fn, System.IO.FileMode.Open)
exec(f)
f.Close()
# verify that exec'd code has access to existing locals
qqq = 3
exec('qqq+1')
# and not to *non*-existing locals..
del qqq
try: exec('qqq+1')
except NameError: pass
else: Fail("should already thrown (qqq+1)")
exec('qqq+1', {'qqq':99})
# Test passing alternative local and global scopes to exec.
# Explicit global and local scope.
# Functional form of exec.
myloc = {}
myglob = {}
exec("a = 1; global b; b = 1", myglob, myloc)
Assert("a" in myloc)
Assert("a" not in myglob)
Assert("b" in myglob)
Assert("b" not in myloc)
# Statement form of exec.
myloc = {}
myglob = {}
exec "a = 1; global b; b = 1" in myglob, myloc
Assert("a" in myloc)
Assert("a" not in myglob)
Assert("b" in myglob)
Assert("b" not in myloc)
# Explicit global scope implies the same local scope.
# Functional form of exec.
myloc = {}
myglob = {}
exec("a = 1; global b; b = 1", myglob)
Assert("a" in myglob)
Assert("a" not in myloc)
Assert("b" in myglob)
Assert("b" not in myloc)
# Statement form of exec.
myloc = {}
myglob = {}
exec "a = 1; global b; b = 1" in myglob
Assert("a" in myglob)
Assert("a" not in myloc)
Assert("b" in myglob)
Assert("b" not in myloc)
# Testing interesting exec cases
x = "global_x"
def TryExecG(what, glob):
exec what in glob
def TryExecGL(what, glob, loc):
exec what in glob, loc
class Nothing:
pass
def MakeDict(value):
return { 'AreEqual' : AreEqual, 'AssertError' : AssertError, 'x' : value, 'str' : str }
class Mapping:
def __init__(self, value = None):
self.values = MakeDict(value)
def __getitem__(self, item):
return self.values[item]
class MyDict(dict):
def __init__(self, value = None):
self.values = MakeDict(value)
def __getitem__(self, item):
return self.values[item]
TryExecG("AreEqual(x, 'global_x')", None)
TryExecGL("AreEqual(x, 'global_x')", None, None)
AssertError(TypeError, TryExecG, "print x", Nothing())
AssertError(TypeError, TryExecGL, "print x", Nothing(), None)
AssertError(TypeError, TryExecG, "print x", Mapping())
AssertError(TypeError, TryExecGL, "print x", Mapping(), None)
TryExecG("AreEqual(x, 17)", MakeDict(17))
TryExecGL("AreEqual(x, 19)", MakeDict(19), None)
#TryExecG("AreEqual(x, 23)", MyDict(23))
#TryExecGL("AreEqual(x, 29)", MyDict(29), None)
TryExecGL("AreEqual(x, 31)", None, MakeDict(31))
AssertError(TypeError, TryExecGL, "print x", None, Nothing())
TryExecGL("AreEqual(x, 37)", None, Mapping(37))
#TryExecGL("AreEqual(x, 41)", None, MyDict(41))
# Evaluating the "in" expressions in exec statement
def f(l):
l.append("called f")
return {}
l = []
exec "pass" in f(l)
AreEqual(l, ["called f"])
def g(l):
l.append("called g")
return {}
l = []
exec "pass" in f(l), g(l)
AreEqual(l, ["called f", "called g"])
# testing exec accepts \n eolns only
def test_eolns():
def f1(sep): exec 'x = 2$y=4$'.replace('$', sep)
def f2(sep): exec '''x = 3$y = 5$'''.replace('$', sep)
def f3(sep): exec "exec '''x = 3$y = 5$'''".replace('$', sep)
for x in [f1, f2, f3]:
if is_ironpython: #http://ironpython.codeplex.com/workitem/27991
AssertError(SyntaxError, x, '\r\n')
AssertError(SyntaxError, x, '\r')
else:
temp = x('\r\n')
temp = x('\r')
AssertError(SyntaxError, x, '\a')
x('\n')
def test_set_builtins():
g = {}
exec("", g, None)
Assert('__builtins__' in g.keys())
def test_builtins_type():
x, y = {}, {}
exec 'abc = 42' in x, y
AreEqual(type(x['__builtins__']), dict)
def test_exec_locals():
exec """
def body():
AreEqual('anythingatall' in locals(), False)
body()
foozbab = 2
def body():
AreEqual('foozbab' in locals(), False)
body()
"""
run_test(__name__)