cpython/Lib/test/test_json/test_enum.py

82 lines
2.4 KiB
Python

from enum import Enum, IntEnum
from test.test_json import PyTest, CTest
SMALL = 1
BIG = 1<<32
HUGE = 1<<64
REALLY_HUGE = 1<<96
class BigNum(IntEnum):
small = SMALL
big = BIG
huge = HUGE
really_huge = REALLY_HUGE
E = 2.718281
PI = 3.141593
TAU = 2 * PI
class FloatNum(float, Enum):
e = E
pi = PI
tau = TAU
class TestEnum:
def test_floats(self):
for enum in FloatNum:
self.assertEqual(self.dumps(enum), repr(enum.value))
self.assertEqual(float(self.dumps(enum)), enum)
self.assertEqual(self.loads(self.dumps(enum)), enum)
def test_ints(self):
for enum in BigNum:
self.assertEqual(self.dumps(enum), str(enum.value))
self.assertEqual(int(self.dumps(enum)), enum)
self.assertEqual(self.loads(self.dumps(enum)), enum)
def test_list(self):
self.assertEqual(
self.dumps(list(BigNum)),
str([SMALL, BIG, HUGE, REALLY_HUGE]),
)
self.assertEqual(self.dumps(list(FloatNum)), str([E, PI, TAU]))
def test_dict_keys(self):
s, b, h, r = BigNum
e, p, t = FloatNum
d = {
s:'tiny', b:'large', h:'larger', r:'largest',
e:"Euler's number", p:'pi', t:'tau',
}
nd = self.loads(self.dumps(d))
self.assertEqual(nd[str(SMALL)], 'tiny')
self.assertEqual(nd[str(BIG)], 'large')
self.assertEqual(nd[str(HUGE)], 'larger')
self.assertEqual(nd[str(REALLY_HUGE)], 'largest')
self.assertEqual(nd[repr(E)], "Euler's number")
self.assertEqual(nd[repr(PI)], 'pi')
self.assertEqual(nd[repr(TAU)], 'tau')
def test_dict_values(self):
d = dict(
tiny=BigNum.small,
large=BigNum.big,
larger=BigNum.huge,
largest=BigNum.really_huge,
e=FloatNum.e,
pi=FloatNum.pi,
tau=FloatNum.tau,
)
nd = self.loads(self.dumps(d))
self.assertEqual(nd['tiny'], SMALL)
self.assertEqual(nd['large'], BIG)
self.assertEqual(nd['larger'], HUGE)
self.assertEqual(nd['largest'], REALLY_HUGE)
self.assertEqual(nd['e'], E)
self.assertEqual(nd['pi'], PI)
self.assertEqual(nd['tau'], TAU)
class TestPyEnum(TestEnum, PyTest): pass
class TestCEnum(TestEnum, CTest): pass