def accept_p_domain(self) :
with self.assertRaises(ValueError) as context :
opnorm(self.K, p=0.5, q=2)
self.assertEqual('Domain error (1 < p < infinity required)',
str(context.exception))
def accept_q_domain(self) :
with self.assertRaises(ValueError) as context :
opnorm(self.K, p=2, q=0.5)
self.assertEqual('Domain error (1 <= q required)',
str(context.exception))
def accept_pq_required(self) :
with self.assertRaises(ValueError) as context :
opnorm(self.K)
self.assertEqual('error parsing arguments', str(context.exception))
def accept_fifomax(self) :
with self.assertRaises(RuntimeError) as context :
opnorm(self.K, 4, 4, eps=1e-10, fifomax=10)
self.assertEqual('User specifed FIFO max-length exceeded',
str(context.exception))
def accept_has_stats(self) :
(M, vmax, stats) = opnorm(self.K, 4, 4, eps=1e-10, fifomax=0)
keys = ['neval', 'nfifo', 'fifomax', 'nthread']
self.assertItemsEqual(stats.keys(), keys,
"Drury stats keys : {0!s}".format(repr(stats.keys())))
def accept_norm(self) :
M0 = 0.99999943874177
for eps in (1e-10, 1e-8, 1e-6, 1e-4) :
(M, vmax, stats) = opnorm(self.K, 4, 4, eps=eps)
self.assertTrue(abs(M - M0) < eps * M,
"Drury K norm : {0!s}".format(repr(M)))
