def testId(self):
# valid calls
DcmtRandom(id=20, gen_seed=1)
DcmtRandom.range(1, 4, gen_seed=1)
DcmtRandomState(id=3000, gen_seed=1)
DcmtRandomState.range(100, 103, gen_seed=1)
mt_range(4, gen_seed=1)
# check that range functions behave like Python range()
for func in (DcmtRandom.range, DcmtRandomState.range, mt_range):
for args in ((), (1, 2, 3)):
self.assertRaises(TypeError, func, *args)
self.assertEqual(func(3, 1), [])
# error: id < 0
self.assertRaises(DcmtParameterError, DcmtRandom, id=-1, gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandom.range,
-1,
3,
gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandomState,
id=-1,
gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandomState.range,
-1,
2,
gen_seed=1)
self.assertRaises(DcmtParameterError, mt_range, -1, 3, gen_seed=1)
# error: id > 65535
self.assertRaises(DcmtParameterError, DcmtRandom, id=65536, gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandom.range,
65535,
65537,
gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandomState,
id=65536,
gen_seed=1)
self.assertRaises(DcmtParameterError,
DcmtRandomState.range,
65535,
65537,
gen_seed=1)
self.assertRaises(DcmtParameterError,
mt_range,
65534,
65539,
gen_seed=1)
self.assertRaises(DcmtParameterError,
mt_range,
65536,
65539,
gen_seed=1)
def testSingleRandom(self):
shape = (9, 10, 11)
rng = DcmtRandomState(gen_seed=900)
rng.seed(400)
r = rng.rand()
self.assert_(type(r) == float)
def testRand(self):
shape = (9, 10, 11)
rng = DcmtRandomState(gen_seed=900)
rng.seed(400)
randoms = rng.rand(*shape)
self.assert_(randoms.shape == shape)
diff_mean, diff_var = testLimits(randoms, 0, 1)
self.assert_(diff_mean < 0.05)
self.assert_(diff_var < 0.05)
def testRandrawFill(self):
shape = (9, 10, 11)
rng = DcmtRandomState(gen_seed=900)
rng.seed(400)
wrong_val = "aaa"
wrong_arr = numpy.empty(shape, numpy.int64)
self.assertRaises(TypeError, rng.rand_fill, wrong_val)
self.assertRaises(TypeError, rng.rand_fill, wrong_arr)
for dtype in (numpy.int32, numpy.uint32, numpy.float32):
randoms = numpy.empty(shape, dtype)
rng.randraw_fill(randoms)
def testRandFill(self):
shape = (9, 10, 11)
rng = DcmtRandomState(gen_seed=900)
rng.seed(400)
wrong_val = "aaa"
wrong_arr = numpy.empty(shape, numpy.float32)
self.assertRaises(TypeError, rng.rand_fill, wrong_val)
self.assertRaises(TypeError, rng.rand_fill, wrong_arr)
randoms = numpy.empty(shape, numpy.float64)
rng.rand_fill(randoms)
diff_mean, diff_var = testLimits(randoms, 0, 1)
self.assert_(diff_mean < 0.05)
self.assert_(diff_var < 0.05)
