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path: root/contrib/tools/cython/Cython/Compiler/Tests/TestFlowControl.py
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from __future__ import absolute_import 
 
from copy import deepcopy 
from unittest import TestCase 
 
from Cython.Compiler.FlowControl import ( 
    NameAssignment, StaticAssignment, Argument, NameDeletion) 
 
 
class FakeType(object): 
    is_pyobject = True 
 
 
class FakeNode(object): 
    pos = ('filename.pyx', 1, 2) 
    cf_state = None 
    type = FakeType() 
 
    def infer_type(self, scope): 
        return self.type 
 
 
class FakeEntry(object): 
    type = FakeType() 
 
 
class TestGraph(TestCase): 
    def test_deepcopy(self): 
        lhs, rhs = FakeNode(), FakeNode() 
        entry = FakeEntry() 
        entry.pos = lhs.pos 
 
        name_ass = NameAssignment(lhs, rhs, entry) 
        ass = deepcopy(name_ass) 
        self.assertTrue(ass.lhs) 
        self.assertTrue(ass.rhs) 
        self.assertTrue(ass.entry) 
        self.assertEqual(ass.pos, name_ass.pos) 
        self.assertFalse(ass.is_arg) 
        self.assertFalse(ass.is_deletion) 
 
        static_ass = StaticAssignment(entry) 
        ass = deepcopy(static_ass) 
        self.assertTrue(ass.lhs) 
        self.assertTrue(ass.rhs) 
        self.assertTrue(ass.entry) 
        self.assertEqual(ass.pos, static_ass.pos) 
        self.assertFalse(ass.is_arg) 
        self.assertFalse(ass.is_deletion) 
 
        arg_ass = Argument(lhs, rhs, entry) 
        ass = deepcopy(arg_ass) 
        self.assertTrue(ass.lhs) 
        self.assertTrue(ass.rhs) 
        self.assertTrue(ass.entry) 
        self.assertEqual(ass.pos, arg_ass.pos) 
        self.assertTrue(ass.is_arg) 
        self.assertFalse(ass.is_deletion) 
 
        name_del = NameDeletion(lhs, entry) 
        ass = deepcopy(name_del) 
        self.assertTrue(ass.lhs) 
        self.assertTrue(ass.rhs) 
        self.assertTrue(ass.entry) 
        self.assertEqual(ass.pos, name_del.pos) 
        self.assertFalse(ass.is_arg) 
        self.assertTrue(ass.is_deletion)