def test_dump(self):
inputs = [{'foo': 42}, set([2, 3, 7])]
output = StringIO()
dump(inputs, output)
self.assertEqual(
'{"foo" 42}\n#{2 3 7}\n',
output.getvalue())
def test_unknown_handler(self):
output = StringIO()
dump([Custom(42)], output, default=repr)
self.assertEqual('"<Custom(42)>"\n', output.getvalue())
def test_custom_writer(self):
point = namedtuple('point', 'x y')
writer = lambda p: (p.x, p.y)
output = StringIO()
dump([point(2, 3)], output, [(point, Symbol('point'), writer)])
self.assertEqual('#point (2 3)\n', output.getvalue())