diff --git a/extensions/googlechat/src/actions.test.ts b/extensions/googlechat/src/actions.test.ts
index a12566928a0..79960f89341 100644
--- a/extensions/googlechat/src/actions.test.ts
+++ b/extensions/googlechat/src/actions.test.ts
@@ -9,6 +9,7 @@ const sendGoogleChatMessage = vi.hoisted(() => vi.fn());
 const uploadGoogleChatAttachment = vi.hoisted(() => vi.fn());
 const resolveGoogleChatOutboundSpace = vi.hoisted(() => vi.fn());
 const getGoogleChatRuntime = vi.hoisted(() => vi.fn());
+const loadOutboundMediaFromUrl = vi.hoisted(() => vi.fn());
 
 vi.mock("./accounts.js", () => ({
   listEnabledGoogleChatAccounts,
@@ -31,6 +32,15 @@ vi.mock("./targets.js", () => ({
   resolveGoogleChatOutboundSpace,
 }));
 
+vi.mock("../runtime-api.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("../runtime-api.js")>();
+  return {
+    ...actual,
+    loadOutboundMediaFromUrl: (...args: Parameters<typeof actual.loadOutboundMediaFromUrl>) =>
+      (loadOutboundMediaFromUrl as unknown as typeof actual.loadOutboundMediaFromUrl)(...args),
+  };
+});
+
 let googlechatMessageActions: typeof import("./actions.js").googlechatMessageActions;
 
 describe("googlechat message actions", () => {
@@ -130,20 +140,17 @@ describe("googlechat message actions", () => {
       config: { mediaMaxMb: 5 },
     });
     resolveGoogleChatOutboundSpace.mockResolvedValue("spaces/BBB");
-    const loadWebMedia = vi.fn(async () => ({
+    loadOutboundMediaFromUrl.mockResolvedValue({
       buffer: Buffer.from("local-bytes"),
       fileName: "local.txt",
       contentType: "text/plain",
-    }));
+    });
     getGoogleChatRuntime.mockReturnValue({
       channel: {
         media: {
           fetchRemoteMedia: vi.fn(),
         },
       },
-      media: {
-        loadWebMedia,
-      },
     });
     uploadGoogleChatAttachment.mockResolvedValue({
       attachmentUploadToken: "token-2",
@@ -168,9 +175,9 @@ describe("googlechat message actions", () => {
       mediaLocalRoots: ["/tmp"],
     } as never);
 
-    expect(loadWebMedia).toHaveBeenCalledWith(
+    expect(loadOutboundMediaFromUrl).toHaveBeenCalledWith(
       "/tmp/local.txt",
-      expect.objectContaining({ localRoots: ["/tmp"] }),
+      expect.objectContaining({ mediaLocalRoots: ["/tmp"] }),
     );
     expect(uploadGoogleChatAttachment).toHaveBeenCalledWith(
       expect.objectContaining({