test: cover auth access token responses

tests/background-index.test.ts

@@ -47,4 +47,84 @@ describe("background-index", () => {
     );
     expect(sendResponse).toHaveBeenCalledWith({ ok: true });
   });
+
+  test("responds to auth:get-state with auth status", async () => {
+    const listeners: Array<
+      (message: unknown, sender: unknown, sendResponse: (response: unknown) => void) => boolean | void
+    > = [];
+    const sendResponse = vi.fn();
+
+    registerBackgroundMessageHandler(
+      {
+        runtime: {
+          onMessage: {
+            addListener(listener) {
+              listeners.push(listener);
+            }
+          }
+        }
+      },
+      {
+        authController: {
+          getAccessToken: vi.fn(),
+          getAuthState: vi.fn(async () => ({ isAuthenticated: false })),
+          signIn: vi.fn(),
+          signOut: vi.fn()
+        }
+      }
+    );
+
+    const result = listeners[0]({ type: "auth:get-state" }, {}, sendResponse);
+
+    expect(result).toBe(true);
+    await new Promise((resolve) => setTimeout(resolve, 0));
+
+    expect(sendResponse).toHaveBeenCalledWith({
+      ok: true,
+      type: "auth:state",
+      value: { isAuthenticated: false }
+    });
+  });
+
+  test("responds to auth:get-access-token with the current token", async () => {
+    const listeners: Array<
+      (message: unknown, sender: unknown, sendResponse: (response: unknown) => void) => boolean | void
+    > = [];
+    const sendResponse = vi.fn();
+
+    registerBackgroundMessageHandler(
+      {
+        runtime: {
+          onMessage: {
+            addListener(listener) {
+              listeners.push(listener);
+            }
+          }
+        }
+      },
+      {
+        authController: {
+          getAccessToken: vi.fn(async () => "test-access-token"),
+          getAuthState: vi.fn(),
+          signIn: vi.fn(),
+          signOut: vi.fn()
+        }
+      }
+    );
+
+    const result = listeners[0](
+      { type: "auth:get-access-token" },
+      {},
+      sendResponse
+    );
+
+    expect(result).toBe(true);
+    await new Promise((resolve) => setTimeout(resolve, 0));
+
+    expect(sendResponse).toHaveBeenCalledWith({
+      ok: true,
+      type: "auth:token",
+      value: { accessToken: "test-access-token" }
+    });
+  });
 });