Fix tests

Author: Tratcher

src/Servers/HttpSys/test/FunctionalTests/HttpsTests.cs

@@ -50,14 +50,13 @@ public async Task Https_SendHelloWorld_Success()
         [ConditionalFact]
         public async Task Https_EchoHelloWorld_Success()
         {
-            using (Utilities.CreateDynamicHttpsServer(out var address, httpContext =>
+            using (Utilities.CreateDynamicHttpsServer(out var address, async httpContext =>
             {
-                string input = new StreamReader(httpContext.Request.Body).ReadToEnd();
+                var input = await new StreamReader(httpContext.Request.Body).ReadToEndAsync();
                 Assert.Equal("Hello World", input);
-                byte[] body = Encoding.UTF8.GetBytes("Hello World");
+                var body = Encoding.UTF8.GetBytes("Hello World");
                 httpContext.Response.ContentLength = body.Length;
-                httpContext.Response.Body.Write(body, 0, body.Length);
-                return Task.FromResult(0);
+                await httpContext.Response.Body.WriteAsync(body, 0, body.Length);
             }))
             {
                 string response = await SendRequestAsync(address, "Hello World");

src/Servers/Kestrel/test/InMemory.FunctionalTests/UpgradeTests.cs

@@ -33,6 +33,7 @@ public async Task ResponseThrowsAfterUpgrade()
                 {
                     await writer.WriteLineAsync("New protocol data");
                     await writer.FlushAsync();
+                    await writer.DisposeAsync();
                 }
 
                 upgrade.TrySetResult(true);
@@ -79,6 +80,7 @@ public async Task RequestBodyAlwaysEmptyAfterUpgrade()
                         Assert.Equal(send, line);
                         await writer.WriteLineAsync(recv);
                         await writer.FlushAsync();
+                        await writer.DisposeAsync();
                     }
 
                     upgrade.TrySetResult(true);