migration: preserve frontend shell pages and styles

app/tests/test_preservation_slice_market.py

@@ -13,6 +13,11 @@ from backend.data import realtime
 from backend.data.providers import ifind_client as canonical_ifind
 from backend.data.providers import tushare_client as canonical_tushare
 from backend.features.market import charts
+from tests.preservation_helpers import (
+    ORIGINAL_STATIC,
+    assert_moved_asset_matches,
+    reassembled_frontend_runtime,
+)
 
 
 APP_ROOT = Path(__file__).resolve().parents[1]
@@ -146,21 +151,19 @@ class MarketSliceSourceEquivalenceTests(unittest.TestCase):
             top_level_definitions(APP_ROOT / "backend/features/market/charts.py"),
         )
 
-    def test_unchanged_frontend_assets_match_the_original(self) -> None:
-        for relative in (
-            "index.html",
-            "app.js",
-            "styles.css",
-            "renovation.css",
-            "redesign-v2.css",
-            "theme.css",
-            "wentian-v2.css",
+    def test_relocated_frontend_preserves_original_market_runtime_and_styles(self) -> None:
+        self.assertEqual(
+            reassembled_frontend_runtime(),
+            (ORIGINAL_STATIC / "app.js").read_text(encoding="utf-8"),
+        )
+        for original, migrated in (
+            ("styles.css", "styles/styles.css"),
+            ("renovation.css", "styles/renovation.css"),
+            ("redesign-v2.css", "styles/redesign-v2.css"),
+            ("theme.css", "styles/theme.css"),
+            ("wentian-v2.css", "pages/heaven/page.css"),
         ):
-            self.assertEqual(
-                sha256(APP_ROOT / "static" / relative),
-                sha256(ORIGINAL_ROOT / "static" / relative),
-                relative,
-            )
+            assert_moved_asset_matches(self, original, migrated)
 
 
 if __name__ == "__main__":