chore: add timeout to channel and HTTP read

Fixes #1927

cmd/root_test.go

@@ -1128,11 +1128,13 @@ func tryDial(method, addr string) (*http.Response, error) {
 		return nil, err
 	}
 	req := &http.Request{Method: method, URL: u}
+	// Never wait longer than 30 seconds for an HTTP response.
+	cl := &http.Client{Timeout: 30 * time.Second}
 	for {
 		if attempts > 10 {
 			return resp, err
 		}
-		resp, err = http.DefaultClient.Do(req)
+		resp, err = cl.Do(req)
 		if err != nil {
 			attempts++
 			time.Sleep(time.Second)
@@ -1203,15 +1205,24 @@ func TestQuitQuitQuit(t *testing.T) {
 	if resp.StatusCode != http.StatusBadRequest {
 		t.Fatalf("expected a 400 status, got = %v", resp.StatusCode)
 	}
-	resp, err = http.Post("http://localhost:9192/quitquitquit", "", nil)
+	resp, err = tryDial("POST", "http://localhost:9192/quitquitquit")
 	if err != nil {
 		t.Fatalf("failed to dial endpoint: %v", err)
 	}
 	if resp.StatusCode != http.StatusOK {
 		t.Fatalf("expected a 200 status, got = %v", resp.StatusCode)
 	}
-	if want, got := errQuitQuitQuit, <-errCh; !errors.Is(got, want) {
-		t.Fatalf("want = %v, got = %v", want, got)
+
+	var gotErr error
+	select {
+	case err := <-errCh:
+		gotErr = err
+	case <-time.After(30 * time.Second):
+		t.Fatal("timeout waiting for error")
+	}
+
+	if !errors.Is(gotErr, errQuitQuitQuit) {
+		t.Fatalf("want = %v, got = %v", errQuitQuitQuit, gotErr)
 	}
 }