def test_check_limits(hw):
det = hw.det
motor = hw.motor
# The motor object does not currently implement limits.
# Use an assert to help us out if this changes in the future.
assert not hasattr(motor, 'limits')
# # check_limits should warn if it can't find check_value
# TODO: Is there _any_ object to test?
# with pytest.warns(UserWarning):
# check_limits(scan([det], motor, -1, 1, 3))
# monkey-patch some limits
motor.limits = (-2, 2)
# check_limits should do nothing here
check_limits(scan([det], motor, -1, 1, 3))
# check_limits should error if limits are exceeded only if object raises
# this object does not raise
check_limits(scan([det], motor, -3, 3, 3))
# check_limits should raise if limits are equal only if object raises
# this object does not raise
motor.limits = (2, 2)
check_limits(scan([det], motor, -1, 1, 3))
def test_hkl_scan(fourc):
fourc.move(1, 1, 1)
assert (check_limits(
# fmt: off
bp.scan(
[fourc],
fourc.h,
0.9,
1.1,
fourc.k,
0.9,
1.1,
fourc.l,
0.9,
1.1,
33,
)
# fmt: on
) is None)
def test_hkl_range_error(fourc):
with pytest.raises(ValueError) as exinfo:
assert (check_limits(
# fmt: off
bp.scan(
[fourc],
fourc.h,
0.9,
1.1,
fourc.k,
0.9,
1.1,
fourc.l,
0.09,
123.1,
33,
)
# fmt: on
) is None)
assert "Unable to solve." in str(exinfo.value)
def test_check_limits(hw):
det = hw.det
motor = hw.motor
# The motor object does not currently implement limits.
# Use an assert to help us out if this changes in the future.
assert not hasattr(motor, 'limits')
# check_limits should warn if it can't find limits
with pytest.warns(UserWarning):
check_limits(scan([det], motor, -1, 1, 3))
# monkey-patch some limits
motor.limits = (-2, 2)
# check_limits should do nothing here
check_limits(scan([det], motor, -1, 1, 3))
# check_limits should error if limits are exceeded
with pytest.raises(LimitsExceeded):
check_limits(scan([det], motor, -3, 3, 3))
# check_limits should warn if limits are equal
motor.limits = (2, 2)
with pytest.warns(UserWarning):
check_limits(scan([det], motor, -1, 1, 3))
def test_h00_scan(fourc):
fourc.move(1, 0, 0)
assert check_limits(bp.scan([fourc], fourc.h, 0.9, 1.1, fourc.l, 0, 0,
11)) is None
def test_hl_scan(fourc):
fourc.move((1.2, 1.2, 0.001))
assert check_limits(bp.scan([fourc], fourc.h, 0.9, 1.1, fourc.l, 0, 0,
11)) is None
def test_real_axis_range_error(fourc):
with pytest.raises(LimitError) as exinfo:
check_limits(bp.scan([fourc], fourc.tth, 10, 20000, 3))
assert "not within limits" in str(exinfo.value)
def test_real_axis_range_multi(fourc):
assert check_limits(bp.scan([fourc], fourc.tth, 10, 20, fourc.chi, 5, 7,
3)) is None
def test_axis_contention(fourc):
# contention if move pseudo and real positioners together
with pytest.raises(ValueError) as exinfo:
check_limits(bp.scan([fourc], fourc.tth, 10, 20, fourc.k, 0, 0, 3))
assert "mix of real and pseudo" in str(exinfo.value)
def test_real_axis(fourc):
assert check_limits(bp.scan([fourc], fourc.tth, 10, 20, 3)) is None
