tests: Fix tests after #190

- Pull in the relevant types package for `@sinonjs/fake-timers`
- Convert those tests from tap to Jest
- Add some Typescript types to those tests

package.json

@@ -28,6 +28,7 @@
     "@types/node": "^14.0.14",
     "@types/prettier": "^2.0.0",
     "@types/simple-mock": "^0.8.1",
+    "@types/sinonjs__fake-timers": "^6.0.1",
     "axios": "^0.20.0",
     "cheerio": "^1.0.0-rc.2",
     "get-port": "^5.0.0",

test/integration/server-test.ts

@@ -249,7 +249,7 @@ test("POST / with hook error", (t) => {
 });
 
 test("POST / with timeout", async (t) => {
-  t.plan(1);
+  expect.assertions(1);
 
   const clock = FakeTimers.install({
     toFake: ["setTimeout"],
@@ -277,18 +277,22 @@ test("POST / with timeout", async (t) => {
       });
     })
 
-    .catch(t.error)
+    .catch((error: AxiosError) => {
+      expect(error.response.status).toBe(400);
+    })
 
-    .then((result) => {
-      t.is(result.status, 202);
+    .then((result: AxiosResponse) => {
+      expect(result.status).toBe(202);
     })
 
     .then(() => {
       server.close();
       clock.uninstall();
     })
 
-    .catch(t.error);
+    .catch((error: AxiosError) => {
+      expect(error.response.status).toBe(400);
+    });
 
   await clock.nextAsync();
   await clock.nextAsync();