Revert image size streaming (#932)

tests/core/test_image_cache.py

@@ -1,25 +1,8 @@
 """Tests for targeted image cache safety and fetch fallbacks."""
 
-from io import BytesIO
-
 import requests
-from PIL import Image
 
-from shelfmark.core.image_cache import (
-    ImageCacheService,
-    build_variant_cache_id,
-    create_image_variant,
-    normalize_variant_dimension,
-    normalize_variant_format,
-)
-
-
-def _make_image_bytes(
-    *, width: int = 400, height: int = 600, image_format: str = "JPEG", color: str = "navy"
-) -> bytes:
-    buffer = BytesIO()
-    Image.new("RGB", (width, height), color=color).save(buffer, format=image_format)
-    return buffer.getvalue()
+from shelfmark.core.image_cache import ImageCacheService
 
 
 def test_is_safe_url_rejects_invalid_ipv6_url() -> None:
@@ -37,58 +20,3 @@ def test_fetch_and_cache_returns_none_on_request_exception(tmp_path, monkeypatch
 
     assert cache.fetch_and_cache("cover-1", "https://example.com/cover.jpg") is None
     assert "cover-1" not in cache._index
-
-
-def test_create_image_variant_resizes_and_transcodes_to_webp() -> None:
-    variant = create_image_variant(
-        _make_image_bytes(),
-        width=120,
-        height=180,
-        image_format="webp",
-    )
-
-    assert variant is not None
-    variant_bytes, content_type = variant
-    assert content_type == "image/webp"
-
-    with Image.open(BytesIO(variant_bytes)) as image:
-        assert image.size == (120, 180)
-
-
-def test_create_image_variant_preserves_aspect_ratio_for_single_dimension() -> None:
-    variant = create_image_variant(
-        _make_image_bytes(),
-        width=120,
-        image_format="jpeg",
-    )
-
-    assert variant is not None
-    variant_bytes, content_type = variant
-    assert content_type == "image/jpeg"
-
-    with Image.open(BytesIO(variant_bytes)) as image:
-        assert image.size == (120, 180)
-
-
-def test_create_image_variant_returns_none_when_no_change_needed() -> None:
-    image_bytes = _make_image_bytes(image_format="WEBP")
-
-    assert create_image_variant(image_bytes, image_format="webp") is None
-
-
-def test_variant_helpers_normalize_requested_variant_values() -> None:
-    assert normalize_variant_dimension("240") == 240
-    assert normalize_variant_dimension("0") is None
-    assert normalize_variant_dimension("99999") == 1024
-    assert normalize_variant_format("jpg") == "jpeg"
-    assert normalize_variant_format("weBp") == "webp"
-    assert normalize_variant_format("gif") is None
-    assert (
-        build_variant_cache_id(
-            "cover-123",
-            width=120,
-            height=180,
-            image_format="webp",
-        )
-        == "cover-123__w120_h180_fwebp"
-    )