def test_crop(self, use_indices):
axis = DataAxis(axis=self._axis)
start, end = 4., 196.
if use_indices:
start = axis.value2index(start)
end = axis.value2index(end)
axis.crop(start, end)
assert axis.size == 12
np.testing.assert_almost_equal(axis.axis[0], 4)
np.testing.assert_almost_equal(axis.axis[-1], 169)
def test_crop_reverses_indexing(self):
# reverse indexing
axis = DataAxis(axis=self._axis)
axis.crop(-14, -2)
assert axis.size == 12
np.testing.assert_almost_equal(axis.axis[0], 4)
np.testing.assert_almost_equal(axis.axis[-1], 169)
# mixed reverses indexing
axis = DataAxis(axis=self._axis)
axis.crop(2, -2)
assert axis.size == 12
np.testing.assert_almost_equal(axis.axis[0], 4)
np.testing.assert_almost_equal(axis.axis[-1], 169)
