Guard g52 staging path

wasm-port/tests/browser/interp_smoke.html

@@ -8295,6 +8295,18 @@
         "g52/g52-g92-interaction",
         "g52-g92-interaction.ngc",
       );
+      const g52RegressionFiles = [
+        "g52-g92-interaction/g52-g92-interaction.ngc",
+      ];
+      if (g52RegressionFiles.length !== 1 || new Set(g52RegressionFiles).size !== g52RegressionFiles.length) {
+        throw new Error("browser_interp_g52_fixture_coverage: list drift");
+      }
+      const g52StagedNgcFiles = [
+        g52G92InteractionPath,
+      ].map((path) => path.replace("/work/browser-interp/g52/", ""));
+      if (g52StagedNgcFiles.join(",") !== g52RegressionFiles.join(",")) {
+        throw new Error("browser_interp_g52_staging_manifest: list drift");
+      }
       verifyExpectedOutput(
         "browser_interp_g52_g92_interaction",
         interp.runFile(g52G92InteractionPath),

wasm-port/tests/wasm/node/verify_interp_wasm.mjs

@@ -3184,6 +3184,21 @@ const g52G92InteractionPath = writeInterpRegressionFile(
   "g52/g52-g92-interaction",
   "g52-g92-interaction.ngc",
 );
+const g52RegressionFiles = [
+  "g52-g92-interaction/g52-g92-interaction.ngc",
+];
+assert.deepEqual(
+  g52RegressionFiles,
+  interpRegressionNgcFilesRecursive("g52"),
+  "interp g52 fixture coverage drift",
+);
+assert.deepEqual(
+  [
+    g52G92InteractionPath,
+  ],
+  g52RegressionFiles.map((file) => `/work/interp/g52/${file}`),
+  "interp g52 staging manifest drift",
+);
 const g52G92InteractionRun = runWithCapturedPrints(() =>
   interp.runFile(g52G92InteractionPath),
 );