48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
from gates import buckets
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# (iw, ih) -> expected (W, H) from KLEIN_BUCKET_SIZES.md, budget 1280, ÷64
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CASES = [
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(1000, 1000, 1280, 1280), # square
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(1000, 2000, 896, 1792), # a=0.50 portrait
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(1000, 1730, 960, 1664), # a≈0.58
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(1000, 1100, 1216, 1344), # a≈0.90 -> portrait-leaning
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(2000, 1000, 1792, 896), # a=2.00 landscape
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(1500, 1000, 1536, 1024), # a=1.50
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]
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def test_pick_bucket_matches_table():
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for iw, ih, W, H in CASES:
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assert buckets.pick_bucket(iw, ih, 1280, 64) == (W, H)
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def test_buckets_are_on_grid_and_within_budget():
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for iw, ih, *_ in CASES:
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W, H = buckets.pick_bucket(iw, ih, 1280, 64)
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assert W % 64 == 0 and H % 64 == 0
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assert W * H <= 1280 * 1280
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def test_square_is_exactly_1280():
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assert buckets.pick_bucket(512, 512, 1280, 64) == (1280, 1280)
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def test_cover_crop_exact_aspect_no_crop():
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# a=2.0 image onto 1792x896 bucket -> scale 0.896, no crop
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new_w, new_h, left, top, scale = buckets.cover_crop_params(2000, 1000, 1792, 896)
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assert (new_w, new_h) == (1792, 896)
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assert (left, top) == (0, 0)
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assert round(scale, 3) == 0.896
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def test_cover_crop_square_into_landscape_crops_height():
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new_w, new_h, left, top, scale = buckets.cover_crop_params(1000, 1000, 1792, 896)
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assert new_w == 1792 and new_h >= 896
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assert left == 0 and top == (new_h - 896) // 2 # centered vertical crop
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assert scale > 1.0 # upscaled to cover width
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def test_cover_crop_upscale_square():
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*_, scale = buckets.cover_crop_params(1000, 1000, 1280, 1280)
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assert round(scale, 2) == 1.28
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