fix: stabilize localization comparison semantics

tests/unit/localization.test.js

@@ -3,6 +3,10 @@ import {
   createLocalizationAnalysisPlan,
   estimateLocalizationWorkload,
 } from "/packages/acoustics-core/localization.js";
+import {
+  DEFAULT_GCC_PHAT_CROSS_SPECTRUM_BATCH_SIZE,
+  DEFAULT_GCC_PHAT_POINT_BATCH_SIZE,
+} from "/packages/acoustics-core/gcc-phat.js";
 import {
   DEFAULT_LOCALIZATION_ALGORITHM,
   LOCALIZATION_ALGORITHM_IDS,
@@ -167,10 +171,22 @@ test("portable and streaming API accept an algorithm choice without Scene synthe
     computeOptions: { pointBatchSize: 1024, stftTransformBatchSize: 1024 },
   };
   const plan = createLocalizationPlan(config);
+  const defaultBatchPlan = createLocalizationPlan({ ...config, computeOptions: undefined });
   const localized = await localizeMultichannel({ plan, channels: fixture.channels });
   assertEqual(plan.algorithm, "gcc-phat", "portable plan algorithm");
   assertEqual(plan.computeOptions.phatFloorRatio, 1e-5, "portable PHAT floor forwarding");
   assertEqual(plan.analysisPlan, plan.gccPhatPlan, "portable GCC plan alias");
+  assertEqual(plan.computeOptions.pointBatchSize, 1024, "explicit portable point batch override");
+  assertEqual(
+    defaultBatchPlan.computeOptions.pointBatchSize,
+    DEFAULT_GCC_PHAT_POINT_BATCH_SIZE,
+    "GCC lookup-oriented default batch",
+  );
+  assertEqual(
+    defaultBatchPlan.computeOptions.crossSpectrumBatchSize,
+    DEFAULT_GCC_PHAT_CROSS_SPECTRUM_BATCH_SIZE,
+    "GCC cross-spectrum cancellation batch",
+  );
   assertEqual(localized.algorithm, "gcc-phat", "portable result algorithm");
   assertEqual(localized.phatFloorRatio, 1e-5, "portable PHAT floor reaches GCC core");
   assertEqual(localized.bands[0].rawScale, "score", "portable score map");