def test_split(self):
mt = MonitorTransforms('a,c', '1,2', delim=',')
self.assertEqual(len(mt.pre), 2)
self.assertEqual(len(mt.post), 2)
mt = MonitorTransforms('a;c', 'exp(x);2.234')
self.assertEqual(len(mt.pre), 2)
self.assertEqual(len(mt.post), 2)
def test_post(self):
state = numpy.tile(numpy.r_[:4], (2, 1)).reshape((2, -1, 1))
state[1] *= 2
# check expr eval correct
mt = MonitorTransforms('0;0', 'mon;')
_, out = mt.apply_post((0.0, state))
self.assertEqual(3, out.flat[3])
self.assertEqual(6, out.flat[7])
mt = MonitorTransforms('0;0', 'mon;mon**2-1')
_, out = mt.apply_post((0.0, state))
self.assertEqual(3, out.flat[3])
self.assertEqual(35, out.flat[7])
# check correct shape
n_expr = numpy.random.randint(5, 10)
state = numpy.tile(numpy.r_[:4], (n_expr, 1)).reshape((n_expr, -1, 1))
post_expr = ';'.join([str(i) for i in range(n_expr)])
mt = MonitorTransforms('0', post_expr)
_, out = mt.apply_post((0.0, state))
self.assertEqual(n_expr, out.shape[0])
def test_pre(self):
state = numpy.r_[:4].reshape((1, -1, 1))
# check expr correctly evaluated
mt = MonitorTransforms('x0**2', '')
out = mt.apply_pre(state)
self.assertEqual(out[0, -1, 0], 9)
# check correct shape
n_expr = numpy.random.randint(5, 10)
pre_expr = ';'.join([str(i) for i in range(n_expr)])
mt = MonitorTransforms(pre_expr, '')
out = mt.apply_pre(state)
self.assertEqual(n_expr, out.shape[0])
def _fail_noop_pre(self):
MonitorTransforms(';;', ';;')
def test_noop_post(self):
mt = MonitorTransforms('a;b;c', '2.34*(pre+1.5);;')
self.assertEqual(len(mt.post), 3)
def _syntax_fail(self, pre, post):
MonitorTransforms(pre, post)
def test_post_1(self):
mt = MonitorTransforms('a;b', 'c')
self.assertEqual(1, len(mt.post))
def test_pre_1(self):
mt = MonitorTransforms('a', 'b;c')
self.assertEqual(1, len(mt.pre))
def test_post_default_expands(self):
mt = MonitorTransforms('V;W', '')
self.assertEqual(2, len(mt.post))
def test_syntax(self):
mt = MonitorTransforms('a+b/c*f(a,b)', '23')
self.assertRaises(SyntaxError, self._syntax_fail)
def _syntax_fail(self):
MonitorTransforms('a=3', '23.234')
def _shape_fail(self):
MonitorTransforms('1,2,3', '2,3', delim=',')