推进 OPFS G-code 程序路径 helper

wasm-port/tests/opfs/node/verify_file_service.mjs

@@ -25,6 +25,7 @@ import {
   validateSessionSnapshot,
 } from "../../../runtime/opfs/snapshot-store.js";
 import {
+  gcodeFilenameFromProgramPath,
   loadGcodeProgram,
   loadMachineTextFiles,
   machineFilePaths,
@@ -201,6 +202,18 @@ assertGcodeProgramStoragePath(
   "custom-fixture.ngc",
   gcodeProgramPath("custom-fixture.ngc"),
 );
+assert.equal(
+  gcodeFilenameFromProgramPath("linuxcnc/gcode/fixture.ngc"),
+  "fixture.ngc",
+);
+assert.throws(
+  () => gcodeFilenameFromProgramPath("linuxcnc/machines/xyzab-tdr/fixture.ngc"),
+  /Invalid G-code program OPFS path/,
+);
+assert.throws(
+  () => gcodeFilenameFromProgramPath("linuxcnc/gcode/nested/fixture.ngc"),
+  /Invalid G-code program OPFS path/,
+);
 assertPreviewCacheStoragePath("fixture", previewCachePath("fixture"));
 assertPreviewCacheStoragePath(
   "fixture",