Simplify tests

SimpleHttpServerTest/SimpleServerTest.cs

@@ -1,4 +1,6 @@
 using SimpleHttpServer;
+using System.Net;
+using System.Runtime.CompilerServices;
 
 namespace SimpleHttpServerTest;
 
@@ -8,7 +10,14 @@ public class SimpleServerTest {
     const int PORT = 8833;
 
     private HttpServer? activeServer = null;
+    private HttpClient? activeHttpClient = null;
     private static string GetRequestPath(string url) => $"http://localhost:{PORT}/{url.TrimStart('/')}";
+    private async Task RequestGetStringAsync(string path) => await activeHttpClient!.GetStringAsync(GetRequestPath(path));
+    private async Task<HttpResponseMessage> AssertGetStatusCodeAsync(string path, HttpStatusCode statusCode) {
+        var resp = await activeHttpClient!.GetAsync(GetRequestPath(path));
+        Assert.AreEqual(resp.StatusCode, statusCode);
+        return resp;
+    }
 
     [TestInitialize]
     public void Init() {
@@ -21,6 +30,8 @@ public class SimpleServerTest {
         activeServer.RegisterEndpointsFromType<TestEndpoints>();
         activeServer.Start();
 
+        activeHttpClient = new HttpClient();
+
         Console.WriteLine("Server started.");
     }
 
@@ -33,17 +44,17 @@ public class SimpleServerTest {
         }
         await Console.Out.WriteLineAsync("Shutting down server...");
         await activeServer.StopAsync(ctokSrc.Token);
+        activeHttpClient?.Dispose();
+        activeHttpClient = null;
         await Console.Out.WriteLineAsync("Shutdown finished.");
     }
 
     [TestMethod]
     public async Task CheckSimpleServe() {
-        using var hc = new HttpClient();
+        await AssertGetStatusCodeAsync("/", HttpStatusCode.OK);
-        await hc.GetStringAsync(GetRequestPath("/"));
     }
 
     public class TestEndpoints {
-
         [HttpEndpoint(HttpRequestType.GET, "/", "index.html", "amogus.html")]
         public static async Task Index(RequestContext req) {
             await req.RespWriter.WriteLineAsync("It works!");