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"""unit tests for logilab.common.bind module"""
__revision__ = '$Id: unittest_bind.py,v 1.2 2006-01-03 15:31:16 syt Exp $'
from logilab.common.testlib import TestCase, unittest_main
from logilab.common.compat import set as Set
from logilab.common import bind
HELLO = 'Hello'
def f():
return HELLO
def modify_hello():
global HELLO
HELLO = 'hacked !'
import foomod
class BindTC(TestCase):
"""Test suite for bind module"""
def test_simple_bind(self):
"""tests a simple global variable becomes a local one"""
self.assertEquals(f(), HELLO)
d = {'HELLO' : HELLO}
new_f = bind.bind(f, d)
self.assertEquals(new_f(), f())
f_consts = f.func_code.co_consts
newf_consts = new_f.func_code.co_consts
self.assertEquals(f_consts, (None,))
self.assert_(newf_consts, (None, HELLO))
def test_optimize_on_a_func(self):
"""make sure optimize only workds for modules"""
self.assertRaises(TypeError, bind.optimize_module, f, ('c1', 'c2'))
self.assertRaises(TypeError, bind.optimize_module_2, f, ('c1', 'c2'))
self.assertRaises(TypeError, bind.optimize_module, [], ('c1', 'c2'))
self.assertRaises(TypeError, bind.optimize_module_2, [], ('c1', 'c2'))
def test_analyze_code(self):
"""tests bind.analyze_code()"""
consts_dict, consts_list = {}, []
globs = {'HELLO' : "some global value"}
modified = bind.analyze_code(modify_hello.func_code, globs,
consts_dict, consts_list)
self.assertEquals(consts_list, [None, 'hacked !'])
self.assertEquals(modified, ['HELLO'])
def test_optimize_module2(self):
"""test optimize_module_2()"""
f1_consts = Set(foomod.f1.func_code.co_consts)
f2_consts = Set(foomod.f2.func_code.co_consts)
f3_consts = Set(foomod.f3.func_code.co_consts)
bind.optimize_module_2(foomod, ['f1', 'f2', 'f3'])
newf1_consts = Set(foomod.f1.func_code.co_consts)
newf2_consts = Set(foomod.f2.func_code.co_consts)
newf3_consts = Set(foomod.f3.func_code.co_consts)
self.assert_(newf1_consts == newf2_consts == newf3_consts)
self.assertEquals(newf1_consts, f1_consts | f2_consts | f3_consts)
if __name__ == '__main__':
unittest_main()
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