def test_tap_activation():
a = Ring(16)
t = a.create_tap()
t.deactivate()
assert t.name in a.inactive_taps
assert t.name not in a.active_taps
a.append(np.arange(15))
a.append([99])
t.activate()
assert t.name in a.active_taps
assert t.name not in a.inactive_taps
s = t.get_samples(1)
assert s[0] == 99
def test():
a = Ring(4)
a.append([1, 2])
assert np.all(a.raw == [1, 2, 0, 0])
a.append([3, 4])
assert np.all(a.raw == [1, 2, 3, 4])
a.append([5])
assert np.all(a.raw == [5, 2, 3, 4])
a.append([6, 7])
a.append([8, 9])
assert np.all(a.raw == [9, 6, 7, 8])
a.append([10, 11])
assert np.all(a.raw == [9, 10, 11, 8])
# test getitem
a = Ring(4)
a.append([0, 1, 2, 3])
assert a[0] == 3
assert a[-1] == 2
a.append([4])
assert (np.all(a.raw == [4, 1, 2, 3]))
assert (a[0] == 4)
assert (a[-1] == 3)
assert (np.all(a.recent(0) == []))
assert (np.all(a.recent(1) == [4]))
a.append([5])
assert (np.all(a.recent(2) == [4, 5]))
# test wrap around
assert (np.all(a.recent(3) == [3, 4, 5]))
# test RingPosition
a = Ring(8)
p = a.create_tap()
assert p.valid_buffer_length == 1
a.append(np.arange(4))
assert p.valid_buffer_length == 5
p.advance(1)
assert p.valid_buffer_length == 4
assert p.index == 0
assert np.all(p.get_samples(4) == [0, 1, 2, 3])
p.advance(2)
assert np.all(p.get_samples(2) == [2, 3])
a.append([4, 5, 6, 7, 8])
p.advance(4)
assert np.all(p.get_samples(2) == [6, 7])
# test wraping
assert np.all(p.get_samples(3) == [6, 7, 8])
p.advance(2)
assert (p.valid)
assert (a.raw[p.index] == 8)
# Ensure that we throw when breaking a ring pointer
a = Ring(8)
a.append(np.arange(8))
p = a.create_tap()
assert (p.get_samples(1)[0] == 7)
# pointing to the last item in the sample
a.append(np.arange(7))
try:
a.append([99])
except RingPointerWarning as e:
pass
assert p.valid is False
a = Ring(8)
p = a.create_tap()
try:
p.advance(2)
except RingPointerWarning as e:
pass
assert p.valid is False
return a, p
# test rewinding pointer
a = Ring(5)
a.append(np.arange(2))
assert a.pointer == 2
a.rewind(1)
assert a.p == 1
a.rewind(3)
assert a.p == 3
