def encode(self, o):
"""
Encode a given python object
:type o: :class:`object`
:param o: Python object
:rtype: :class:`str`
:return: JSON string in canonicalized form
"""
if isinstance(o, dict):
# Remove non-significant whitespace characters
# Keys are sorted lexicographically using UCS code
# point values
sorted_keys = sorted(o.keys())
sorted_items = [
'%s:%s' % (self.encode(key), self.encode(o[key]))
for key in sorted_keys
]
string = ','.join(sorted_items)
return '{%s}' % string
elif isinstance(o, list):
# Arrays must preserve the initial ordering
# Remove non-significant whitespace characters
string = ','.join([self.encode(item) for item in o])
return '[%s]' % string
elif isinstance(o, decimal.Decimal):
return canonicalize_double(o)
else:
return json.JSONEncoder.encode(self, o)
def visit_double_value(value):
"""
Visit a DoubleValue object
:type value: :class:`vmware.vapi.data.value.DoubleValue`
:param value: Double value object
:rtype: :class:`str`
:return: JSON string
"""
return canonicalize_double(value.value)
def test_double(self):
for input_val, expected in [
('3.33', '3.33E0'),
('3.0033', '3.0033E0'),
('3333.333', '3.333333E3'),
('3333.333000', '3.333333E3'),
('3333.0003000', '3.3330003E3'),
('-3333.333000', '-3.333333E3'),
('0.3333', '3.333E-1'),
('0.00333', '3.33E-3'),
('-0.00333', '-3.33E-3'),
('0', '0.0E0'),
('-0', '-0.0E0'),
('-0.0E-0', '-0.0E0'),
('+0', '0.0E0'),
('+0.00', '0.0E0'),
('-12.34E4', '-1.234E5'),
('1111111.1111100021e-30', '1.1111111111100021E-24'),
('0.000234E-10', '2.34E-14'),
('0.000234E+10', '2.34E6'),
]:
actual_output = canonicalize_double(Decimal(input_val))
self.assertEqual(actual_output, expected)