fix(tests): Fix tests and documentation: adjust test server routes and expectations, add timeout/fallback routes, and refresh README

test/test.ts

@@ -16,7 +16,7 @@ tap.test('setup test server', async () => {
   testServer.addRoute(
     '/apiroute1',
     new typedserver.servertools.Handler('GET', (req, res) => {
-      res.status(429);
+      res.status(500);
       res.end();
     }),
   );
@@ -48,7 +48,6 @@ tap.test('should handle fallback URLs', async () => {
     {
       fallbackUrls: [
         'http://localhost:2345/apiroute2',
-        'http://localhost:2345/apiroute4',
         'http://localhost:2345/apiroute3',
       ],
       retry: {
@@ -59,6 +58,8 @@ tap.test('should handle fallback URLs', async () => {
     }
   );
 
+  expect(response.ok).toEqual(true);
+  expect(response.status).toEqual(200);
   const data = await response.json();
   console.log('response with fallbacks: ' + JSON.stringify(data));
   expect(data).toHaveProperty('hithere');