def setUp(self):
unittest.TestCase.setUp(self)
self.globals = {}
self.locals = MultiContext(self.globals)
self.interpreter = GlobalAndLocalInterpreter(locals=self.locals,
globals=self.globals)
# Name of local variable name to use in expressions
self.input_name = 'vp'
# Value to use in expressions.
self.local_input = 1
self.global_input = 1
class GlobalAndLocalInterpreterTestCase(unittest.TestCase):
def setUp(self):
unittest.TestCase.setUp(self)
self.globals = {}
self.locals = MultiContext(self.globals)
self.interpreter = GlobalAndLocalInterpreter(locals=self.locals,
globals=self.globals)
# Name of local variable name to use in expressions
self.input_name = 'vp'
# Value to use in expressions.
self.local_input = 1
self.global_input = 1
def tearDown(self):
unittest.TestCase.tearDown(self)
def test_default_construction(self):
""" Can we create a default interpreter?
"""
interpreter = GlobalAndLocalInterpreter()
def test_set_item_local(self):
""" Can we set a value to the local dictionary?
"""
# vp=1
expr = "%s=%s" % (self.input_name, self.local_input)
self.interpreter.push(expr)
self.assertEqual(self.locals[self.input_name], self.local_input)
def test_del_item_local(self):
""" Can we we delete an item from locals?
"""
# vp=1
expr = "%s=%s" % (self.input_name, self.local_input)
self.interpreter.push(expr)
# del vp
expr = "del %s" % self.input_name
self.interpreter.push(expr)
self.assertFalse(self.locals.has_key(self.input_name))
def test_del_item_global_with_global_statement(self):
""" Can we delete a global variable if declared global?
"""
self.globals[self.input_name] = self.global_input
# assert(vp==1)
expr = "assert(%s==%s)" % (self.input_name, self.global_input)
self.interpreter.push(expr)
# global vpl; del vp;
expr = "global %s; del %s" % (self.input_name, self.input_name)
self.interpreter.push(expr)
self.assertFalse(self.globals.has_key(self.input_name))
def test_del_item_global(self):
""" Can we delete a global variable even if it isn't declared global?
"""
self.globals[self.input_name] = self.global_input
self.assertTrue(self.globals.has_key(self.input_name))
# assert(vp==1)
expr = "assert(%s==%s)" % (self.input_name, self.global_input)
self.interpreter.push(expr)
# del vp;
expr = "del %s" % self.input_name
self.interpreter.push(expr)
self.assertFalse(self.locals.has_key(self.input_name))
self.assertFalse(self.globals.has_key(self.input_name))
def test_wildcard_style_imports(self):
""" Can we use 'from xyz import \*'?
"""
self.interpreter.push("from sys import *")
self.assertTrue(self.globals.has_key('exc_info'))
def test_list_comprehension(self):
""" Can we run a list comprehension in the interpreter?
"""
self.interpreter.push("val = [x for x in [1,2,3]]")