def test_warnings_for_even_roi_height_width():
with warnings.catch_warnings(record=True) as ws:
# Cause all warnings to always be triggered.
#warnings.simplefilter("always")
# Trigger a warning.
h, w = (3, 4)
center_roi_around((10, 10), (h, w))
center_roi_around((10, 10), (h, w))
# Verify some things
assert len(ws) == 1, "This warning should only be rased once"
assert issubclass(ws[-1].category, UserWarning)
assert "(height, width)=({height}, {width})".format(height=h, width=w) in str(ws[-1].message)
def test_center_roi_around_row_vs_column():
row = 2
col = 3
h = 5
w = 7
roi = center_roi_around([row, col], [h, w])
print(roi)
assert roi[2] - roi[0] == h
assert roi[3] - roi[1] == w
def test_center_roi_around():
test_roi = [0, 0, 3, 5]
assert np.allclose(center_roi_around((1, 2), (3, 5)), test_roi)
test_roi = [0, 0, 1, 1] # this is a 1x1 ROI
assert np.allclose(center_roi_around((0, 0), (1, 1)), test_roi)
