Guard g72 staging paths

wasm-port/tests/browser/interp_smoke.html

@@ -7144,7 +7144,7 @@
         ].join("\n"),
       );
 
-      for (const g72Fixture of [
+      const g72Fixtures = [
         {
           name: "facing",
           dir: "g72-facing",
@@ -7157,8 +7157,16 @@
           file: "g72-iterations-missing.ngc",
           finalZ: "-40",
         },
-      ]) {
+      ];
+      if (g72Fixtures.length !== 2 || new Set(g72Fixtures.map((fixture) => `${fixture.dir}/${fixture.file}`)).size !== g72Fixtures.length) {
+        throw new Error("browser_interp_g72_fixture_coverage: list drift");
+      }
+      for (const g72Fixture of g72Fixtures) {
         const g72Path = await writeInterpRegressionFile(interp, g72Fixture.dir, g72Fixture.file);
+        const g72StagedRelativeNgcFile = g72Path.replace("/work/browser-interp/", "");
+        if (g72StagedRelativeNgcFile !== `${g72Fixture.dir}/${g72Fixture.file}`) {
+          throw new Error(`browser_interp_g72_${g72Fixture.name}_staging_manifest: list drift`);
+        }
         verifyExpectedOutput(
           `browser_interp_g72_${g72Fixture.name}`,
           interp.runFile(g72Path),

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

@@ -2088,7 +2088,7 @@ verifyExpectedOutput(
   ].join("\n"),
 );
 
-for (const g72Fixture of [
+const g72Fixtures = [
   {
     name: "facing",
     dir: "g72-facing",
@@ -2101,8 +2101,19 @@ for (const g72Fixture of [
     file: "g72-iterations-missing.ngc",
     finalZ: "-40",
   },
-]) {
+];
+for (const g72Fixture of g72Fixtures) {
+  assert.deepEqual(
+    [g72Fixture.file],
+    interpRegressionNgcFilesRecursive(g72Fixture.dir),
+    `interp ${g72Fixture.dir} fixture coverage drift`,
+  );
   const g72Path = writeInterpRegressionFile(g72Fixture.dir, g72Fixture.file);
+  assert.deepEqual(
+    [g72Path],
+    [`/work/interp/${g72Fixture.dir}/${g72Fixture.file}`],
+    `interp ${g72Fixture.dir} staging manifest drift`,
+  );
   verifyExpectedOutput(
     `interp_g72_${g72Fixture.name}_wasm`,
     interp.runFile(g72Path),