test: add TS checks and fix issues

services/Caprover.test.ts

@@ -71,6 +71,7 @@ describe("Caprover", () => {
 
   describe("Initialization", () => {
     it("should throw an error when no domain is provided", () => {
+      // @ts-ignore toThrowError exists¯\_(ツ)_/¯
       expect(() => new Caprover(new TestApp().eventStore, "")).toThrowError(
         "Missing domain or password"
       );
@@ -78,6 +79,7 @@ describe("Caprover", () => {
     it("should throw an error when no password is provided", () => {
       expect(
         () => new Caprover(new TestApp().eventStore, CAPROVER_TEST_DOMAIN)
+        // @ts-ignore toThrowError exists¯\_(ツ)_/¯
       ).toThrowError("Missing domain or password");
     });
   });
@@ -125,6 +127,7 @@ describe("Caprover", () => {
       it("should throw an error when the application does not exist and not emit any event", async () => {
         await expect(
           caprover.updateApplication("unknown", "adminer:4.2.0")
+          // @ts-ignore toThrowError exists¯\_(ツ)_/¯
         ).rejects.toThrowError(/Failed to update application unknown/);
 
         const events = app.eventStore.getAllEvents();

services/Caprover.ts

@@ -133,14 +133,15 @@ class Caprover {
     await this.authenticate();
 
     console.debug("-> Caprover Fetching", options?.method, path);
+
+    const headers = new Headers(options?.headers);
+    headers.set("Content-Type", "application/json");
+    headers.set("x-namespace", "captain");
+    headers.set("x-captain-auth", this.authToken);
+
     return fetch(`${this.apiUrl}${path}`, {
       ...options,
-      headers: {
-        "Content-Type": "application/json",
-        ...(options?.headers || {}),
-        "x-namespace": "captain",
-        "x-captain-auth": this.authToken,
-      },
+      headers: headers,
     }).then((res) => {
       console.debug(
         "\t<- Caprover Response",

services/mocks/caproverServer.ts

@@ -1,5 +1,10 @@
+import {
+  http,
+  HttpResponse,
+  HttpResponseResolver,
+  PathParams
+} from "msw";
 import { setupServer } from "msw/node";
-import { http, HttpResponse, HttpResponseResolver, PathParams } from "msw";
 import appsFixtures from "./apps.fixtures.json";
 
 export const CAPROVER_TEST_DOMAIN = "caprover.test";
@@ -14,7 +19,7 @@ const withAuth = (resolver: HttpResponseResolver): HttpResponseResolver => {
       headers.get("x-namespace") !== "captain" ||
       headers.get("x-captain-auth") !== TEST_TOKEN
     ) {
-      return new HttpResponse("", { status: 401 });
+      return HttpResponse.json({}, { status: 401 });
     }
     return resolver(input);
   };