def test_change_default_dt(self, dt):
"""Test that system with dynamics uses correct default dt"""
ct.set_defaults('control', default_dt=dt)
assert ct.ss(1, 0, 0, 1).dt == dt
assert ct.tf(1, [1, 1]).dt == dt
nlsys = ct.iosys.NonlinearIOSystem(
lambda t, x, u: u * x * x,
lambda t, x, u: x, inputs=1, outputs=1)
assert nlsys.dt == dt
def test_change_default_dt_static(self):
"""Test that static gain systems always have dt=None"""
ct.set_defaults('control', default_dt=0)
assert ct.tf(1, 1).dt is None
assert ct.ss([], [], [], 1).dt is None
# Make sure static gain is preserved for the I/O system
sys = ct.ss([], [], [], 1)
sys_io = ct.ss2io(sys)
assert sys_io.dt is None
def test_change_default_dt(self):
ct.set_defaults('statesp', default_dt=0)
self.assertEqual(ct.ss(0, 0, 0, 1).dt, 0)
ct.set_defaults('statesp', default_dt=None)
self.assertEqual(ct.ss(0, 0, 0, 1).dt, None)
ct.set_defaults('xferfcn', default_dt=0)
self.assertEqual(ct.tf(1, 1).dt, 0)
ct.set_defaults('xferfcn', default_dt=None)
self.assertEqual(ct.tf(1, 1).dt, None)
def test_latex_repr(g, ref, repr_type, num_format, editsdefaults):
"""Test `._latex_repr_` with different config values
This is a 'gold image' test, so if you change behaviour,
you'll need to regenerate the reference results.
Try something like:
control.reset_defaults()
print(f'p3_p : {g1._repr_latex_()!r}')
"""
from control import set_defaults
if num_format is not None:
set_defaults('statesp', latex_num_format=num_format)
if repr_type is not None:
set_defaults('statesp', latex_repr_type=repr_type)
refkey = "{}_{}".format(refkey_n[num_format], refkey_r[repr_type])
assert g._repr_latex_() == ref[refkey]
def test_latex_repr(gmats, ref, dt, dtref, repr_type, num_format, editsdefaults):
"""Test `._latex_repr_` with different config values
This is a 'gold image' test, so if you change behaviour,
you'll need to regenerate the reference results.
Try something like:
control.reset_defaults()
print(f'p3_p : {g1._repr_latex_()!r}')
"""
from control import set_defaults
if num_format is not None:
set_defaults('statesp', latex_num_format=num_format)
if repr_type is not None:
set_defaults('statesp', latex_repr_type=repr_type)
g = StateSpace(*(gmats+(dt,)))
refkey = "{}_{}".format(refkey_n[num_format], refkey_r[repr_type])
dt_latex = dtref.format(dt=dt, fmt=defaults['statesp.latex_num_format'])
ref_latex = ref[refkey][:-3] + dt_latex + ref[refkey][-3:]
assert g._repr_latex_() == ref_latex
def test_latex_repr_testsize(editsdefaults):
# _repr_latex_ returns None when size > maxsize
from control import set_defaults
maxsize = defaults['statesp.latex_maxsize']
nstates = maxsize // 2
ninputs = maxsize - nstates
noutputs = ninputs
assert nstates > 0
assert ninputs > 0
g = rss(nstates, ninputs, noutputs)
assert isinstance(g._repr_latex_(), str)
set_defaults('statesp', latex_maxsize=maxsize - 1)
assert g._repr_latex_() is None
set_defaults('statesp', latex_maxsize=-1)
assert g._repr_latex_() is None
gstatic = ss([], [], [], 1)
assert gstatic._repr_latex_() is None
def set_mydefaults():
ct.set_defaults('bode', dB=True, deg=True, Hz=False, grid=True)
def test_change_default_dt_static(self):
"""Test that static gain systems always have dt=None"""
ct.set_defaults('control', default_dt=0)
assert ct.tf(1, 1).dt is None
assert ct.ss(0, 0, 0, 1).dt is None
