test: force channel loader jiti fallback path

src/channels/plugins/module-loader.test.ts

@@ -1,12 +1,17 @@
 import fs from "node:fs";
+import { createRequire } from "node:module";
 import os from "node:os";
 import path from "node:path";
 import { importFreshModule } from "openclaw/plugin-sdk/test-fixtures";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { isJavaScriptModulePath } from "../../plugins/native-module-require.js";
+import type { PluginModuleLoaderFactory } from "../../plugins/plugin-module-loader-cache.js";
 import { resolveExistingPluginModulePath } from "./module-loader.js";
 
 const tempDirs: string[] = [];
+const pluginModuleLoaderJitiFactoryOverrideKey = Symbol.for(
+  "openclaw.pluginModuleLoaderJitiFactoryOverride",
+);
 
 afterEach(() => {
   for (const tempDir of tempDirs.splice(0)) {
@@ -15,8 +20,21 @@ afterEach(() => {
   vi.restoreAllMocks();
   vi.resetModules();
   vi.doUnmock("jiti");
+  delete (
+    globalThis as typeof globalThis & {
+      [pluginModuleLoaderJitiFactoryOverrideKey]?: PluginModuleLoaderFactory;
+    }
+  )[pluginModuleLoaderJitiFactoryOverrideKey];
 });
 
+function stubPluginModuleLoaderJitiFactory(createJiti: PluginModuleLoaderFactory): void {
+  (
+    globalThis as typeof globalThis & {
+      [pluginModuleLoaderJitiFactoryOverrideKey]?: PluginModuleLoaderFactory;
+    }
+  )[pluginModuleLoaderJitiFactoryOverrideKey] = createJiti;
+}
+
 function createTempDir(): string {
   const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "openclaw-channel-module-loader-"));
   tempDirs.push(tempDir);
@@ -70,9 +88,7 @@ describe("channel plugin module loader helpers", () => {
     }));
     const createJiti = vi.fn(() => loadWithJiti);
     vi.resetModules();
-    vi.doMock("jiti", () => ({
-      createJiti,
-    }));
+    stubPluginModuleLoaderJitiFactory(createJiti as unknown as PluginModuleLoaderFactory);
     const loaderModule = await importFreshModule<typeof import("./module-loader.js")>(
       import.meta.url,
       "./module-loader.js?scope=source-ts-jiti-fallback",
@@ -82,15 +98,24 @@ describe("channel plugin module loader helpers", () => {
     fs.mkdirSync(path.dirname(modulePath), { recursive: true });
     fs.writeFileSync(modulePath, "export const ok = true;\n", "utf8");
 
-    expect(
-      loaderModule.loadChannelPluginModule({
-        modulePath,
-        rootDir,
-      }),
-    ).toEqual({
-      loadedBy: "jiti",
-      target: fs.realpathSync.native(modulePath),
-    });
+    const testRequire = createRequire(import.meta.url);
+    const originalTsHook = testRequire.extensions[".ts"];
+    delete testRequire.extensions[".ts"];
+    try {
+      expect(
+        loaderModule.loadChannelPluginModule({
+          modulePath,
+          rootDir,
+        }),
+      ).toEqual({
+        loadedBy: "jiti",
+        target: fs.realpathSync.native(modulePath),
+      });
+    } finally {
+      if (originalTsHook) {
+        testRequire.extensions[".ts"] = originalTsHook;
+      }
+    }
     expect(createJiti).toHaveBeenCalledOnce();
     expect(createJiti).toHaveBeenCalledWith(
       expect.stringContaining("module-loader.ts"),