def test_size(self):
cfs = np.random.rand(10)
subinterval = Interval()
b0 = Bndfun(Chebtech2(np.array([])), subinterval)
b1 = Bndfun(Chebtech2(np.array([1.])), subinterval)
b2 = Bndfun(Chebtech2(cfs), subinterval)
self.assertEquals(b0.size, 0)
self.assertEquals(b1.size, 1)
self.assertEquals(b2.size, cfs.size)
def test_onefun_construction(self):
coeffs = np.random.rand(10)
subinterval = Interval()
onefun = Chebtech2(coeffs)
f = Bndfun(onefun, subinterval)
self.assertIsInstance(f, Bndfun)
self.assertLess(infnorm(f.coeffs - coeffs), eps)
def test_bary_clenshaw_consistency(self):
coeffs = np.random.rand(3)
evalpts = (0.5, np.array([]), np.array([.5]), np.array([.5, .6]))
for n in range(len(coeffs)):
ff = Chebtech2(coeffs[:n])
for xx in evalpts:
fb = ff(xx, "bary")
fc = ff(xx, "clenshaw")
self.assertEquals(type(fb), type(fc))
def test_coeff_construction(self):
coeffs = rand(10)
f = Chebtech2(coeffs)
self.assertIsInstance(f, Chebtech2)
self.assertLess(infnorm(f.coeffs - coeffs), eps)
def setUp(self):
self.emptyfun = Chebtech2(array([]))
def test_vscale_empty(self):
gg = Chebtech2(array([]))
self.assertEquals(gg.vscale, 0.)
def test_size(self):
cfs = rand(10)
self.assertEquals(Chebtech2(array([])).size, 0)
self.assertEquals(Chebtech2(array([1.])).size, 1)
self.assertEquals(Chebtech2(cfs).size, cfs.size)
def test_isconst_False(self):
f = Chebtech2(array([]))
self.assertFalse(f.isconst)
self.assertTrue(not f.isconst)
def test_isempty_False(self):
f = Chebtech2(array([1.]))
self.assertFalse(f.isempty)
self.assertTrue(not f.isempty)
def test_size(self):
cfs = np.random.rand(10)
self.assertEquals(Chebtech2(np.array([])).size, 0)
self.assertEquals(Chebtech2(np.array([1.0])).size, 1)
self.assertEquals(Chebtech2(cfs).size, cfs.size)
def test_isconst_True(self):
f = Chebtech2(np.array([1.0]))
self.assertTrue(f.isconst)
self.assertFalse(not f.isconst)