def setUp(self):
zxbpp.init()
self.t = TYPECAST(Type.float_, NUMBER(3, lineno=1), lineno=2)
if OPTIONS.has_option('stderr'):
OPTIONS.remove_option('stderr')
OPTIONS.add_option('stderr', type_=None, default_value=StringIO())
def test_make_const(self):
""" Must return a number
"""
v = VAR('a', lineno=1, type_=Type.byte_)
v.default_value = 3
v.class_ = CLASS.const
t = TYPECAST.make_node(Type.float_, v, lineno=2)
self.assertIsInstance(t, NUMBER)
self.assertEqual(t, 3)
def test_make_node_loose_byte4(self):
TYPECAST.make_node(Type.ubyte, NUMBER(-257, lineno=1), lineno=2)
self.assertEqual(self.OUTPUT, "(stdin):1: warning: Conversion may lose significant digits\n")
def test_make_node_loose_byte3(self):
TYPECAST.make_node(Type.ubyte, NUMBER(-3, lineno=1), lineno=2)
self.assertEqual(self.OUTPUT, '')
def test_make_node_None(self):
""" None is allowed as operand
"""
self.assertIsNone(TYPECAST.make_node(Type.float_, None, lineno=2))
def test_make_node(self):
t = TYPECAST.make_node(Type.float_, NUMBER(3, lineno=1), lineno=2)
# t is a constant, so typecast is done on the fly
self.assertEqual(t.type_, Type.float_)
self.assertEqual(t, self.t.operand)
def test_make_node__nochange(self):
n = NUMBER(3, 1, type_=Type.float_)
self.assertIs(TYPECAST.make_node(Type.float_, n, 1), n)