121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
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from enum import Enum, IntEnum
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from math import isnan
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from test.test_json import PyTest, CTest
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SMALL = 1
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BIG = 1<<32
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HUGE = 1<<64
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REALLY_HUGE = 1<<96
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class BigNum(IntEnum):
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small = SMALL
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big = BIG
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huge = HUGE
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really_huge = REALLY_HUGE
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E = 2.718281
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PI = 3.141593
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TAU = 2 * PI
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class FloatNum(float, Enum):
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e = E
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pi = PI
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tau = TAU
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INF = float('inf')
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NEG_INF = float('-inf')
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NAN = float('nan')
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class WierdNum(float, Enum):
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inf = INF
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neg_inf = NEG_INF
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nan = NAN
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class TestEnum:
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def test_floats(self):
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for enum in FloatNum:
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self.assertEqual(self.dumps(enum), repr(enum.value))
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self.assertEqual(float(self.dumps(enum)), enum)
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self.assertEqual(self.loads(self.dumps(enum)), enum)
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def test_weird_floats(self):
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for enum, expected in zip(WierdNum, ('Infinity', '-Infinity', 'NaN')):
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self.assertEqual(self.dumps(enum), expected)
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if not isnan(enum):
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self.assertEqual(float(self.dumps(enum)), enum)
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self.assertEqual(self.loads(self.dumps(enum)), enum)
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else:
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self.assertTrue(isnan(float(self.dumps(enum))))
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self.assertTrue(isnan(self.loads(self.dumps(enum))))
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def test_ints(self):
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for enum in BigNum:
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self.assertEqual(self.dumps(enum), str(enum.value))
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self.assertEqual(int(self.dumps(enum)), enum)
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self.assertEqual(self.loads(self.dumps(enum)), enum)
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def test_list(self):
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self.assertEqual(self.dumps(list(BigNum)),
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str([SMALL, BIG, HUGE, REALLY_HUGE]))
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self.assertEqual(self.loads(self.dumps(list(BigNum))),
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list(BigNum))
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self.assertEqual(self.dumps(list(FloatNum)),
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str([E, PI, TAU]))
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self.assertEqual(self.loads(self.dumps(list(FloatNum))),
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list(FloatNum))
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self.assertEqual(self.dumps(list(WierdNum)),
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'[Infinity, -Infinity, NaN]')
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self.assertEqual(self.loads(self.dumps(list(WierdNum)))[:2],
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list(WierdNum)[:2])
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self.assertTrue(isnan(self.loads(self.dumps(list(WierdNum)))[2]))
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def test_dict_keys(self):
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s, b, h, r = BigNum
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e, p, t = FloatNum
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i, j, n = WierdNum
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d = {
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s:'tiny', b:'large', h:'larger', r:'largest',
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e:"Euler's number", p:'pi', t:'tau',
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i:'Infinity', j:'-Infinity', n:'NaN',
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}
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nd = self.loads(self.dumps(d))
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self.assertEqual(nd[str(SMALL)], 'tiny')
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self.assertEqual(nd[str(BIG)], 'large')
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self.assertEqual(nd[str(HUGE)], 'larger')
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self.assertEqual(nd[str(REALLY_HUGE)], 'largest')
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self.assertEqual(nd[repr(E)], "Euler's number")
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self.assertEqual(nd[repr(PI)], 'pi')
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self.assertEqual(nd[repr(TAU)], 'tau')
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self.assertEqual(nd['Infinity'], 'Infinity')
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self.assertEqual(nd['-Infinity'], '-Infinity')
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self.assertEqual(nd['NaN'], 'NaN')
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def test_dict_values(self):
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d = dict(
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tiny=BigNum.small,
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large=BigNum.big,
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larger=BigNum.huge,
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largest=BigNum.really_huge,
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e=FloatNum.e,
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pi=FloatNum.pi,
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tau=FloatNum.tau,
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i=WierdNum.inf,
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j=WierdNum.neg_inf,
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n=WierdNum.nan,
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)
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nd = self.loads(self.dumps(d))
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self.assertEqual(nd['tiny'], SMALL)
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self.assertEqual(nd['large'], BIG)
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self.assertEqual(nd['larger'], HUGE)
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self.assertEqual(nd['largest'], REALLY_HUGE)
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self.assertEqual(nd['e'], E)
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self.assertEqual(nd['pi'], PI)
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self.assertEqual(nd['tau'], TAU)
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self.assertEqual(nd['i'], INF)
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self.assertEqual(nd['j'], NEG_INF)
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self.assertTrue(isnan(nd['n']))
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class TestPyEnum(TestEnum, PyTest): pass
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class TestCEnum(TestEnum, CTest): pass
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