OpenQA.Selenium.NoSuchWindowException: 'Browsing context has been discarded'

ozerkon commented 9 months ago

System

Version: 0.33
Platform: Windows 11
Firefox: 117.0.1 (64 bit)
Selenium: 4.13.0

Testcase

Hi. I have an net.core desktop app. The main purpose of this application is to open the message sent by the administrator and click on the "Okudum" (it means 'i read') button on the opened iframe. After the click the next unread message appears automatically and the method wants to test that the iframe is loaded.

error2 fw

At this point geckodriver throws an exception: OpenQA.Selenium.NoSuchWindowException: 'Browsing context has been discarded' error fw

It works flawlessly with Chromedriver. In fact, I was using the application very often about 4 months ago and it was working smoothly with geckodriver. I needed the application again and frankly I would like it to work properly with firefox as well.

Here is the complete method:

        public bool ConfirmMessages(out string msg) {
          lblReport.Text += "* mebbis.meb.gov.tr sayfası açıldı.\r\n";
          msg = "";
          WinHelpers.WaitForPageLoad(out Common.msg);
          if (Common.driver.PageSource.Contains("Doğrulaması Aktif")) {
            Common.mebAjandaActive = true;
            fLogin f = new fLogin(true);
            while (Common.driver.PageSource.Contains("Doğrulaması Aktif") || Common.driver.PageSource.Contains("Doğrulama Gerçekleşmedi")) {
              if (f.ShowDialog() == DialogResult.OK) {
                Common.mebAjandaText = WinHelpers.GetElementBy("i", "txtDogrulamaKodu", out Common.msg);
                Common.mebAjandaButton = WinHelpers.GetElementBy("i", "btnDogrula", out Common.msg);
                if (Common.mebAjandaText != null && Common.mebAjandaButton != null) {
                  Common.mebAjandaText.Clear();
                  Common.mebAjandaText.SendKeys(Common.captcha);
                  Common.mebAjandaButton.Click();
                }
              } else {
                lblMessage.Text = "İşlem iptal edildi";
                Common.driver.Dispose();
                return false;
              }
            }
          }

          IWebElement ? dysFlipMenu = GetDysLink();
          if (dysFlipMenu == null) {
            lblMessage.Text = "DYS giriş linki bulunamadı\r\nLütfen daha sonra tekrar deneyin";
            Common.driver.Dispose();
            return false;
          }
          Actions action = new Actions(Common.driver);
          action.MoveToElement(dysFlipMenu).Perform();

          int tryCount = 0;
          Thread.Sleep(1000);
          if (Common.bgwConfirm.CancellationPending) {
            return false;
          }
          IWebElement ? dysgiris = GetLoginLink();
          if (dysgiris == null) {
            lblMessage.Text = "DYS giriş linki bulunamadı\r\nLütfen daha sonra tekrar deneyin";
            Common.driver.Dispose();
            return false;
          }
          dysgiris.Click();

          if (Common.driver.WindowHandles.Count > 1) {
            Common.driver.SwitchTo().Window(Common.driver.WindowHandles[1]);
            WinHelpers.WaitForPageLoad(out Common.msg);
            if (Common.bgwConfirm.CancellationPending) {
              return false;
            }
          }
          tryCount = 0;
          lblReport.Text += "* dysweb.meb.gov.tr sekmesine geçildi.\r\n";
          List < IWebElement > ? tree = null;

          while (tree == null) {
            Thread.Sleep(100);
            tree = Common.driver.FindElements(By.CssSelector("li[id^='menuForm:roller_tree:']")).ToList();
            tryCount++;
            if (tryCount == 300) {
              lblMessage.Text = "Sayfa 30 saniye boyunca yanıt vermediği için işlem iptal edildi";
              Common.driver.Dispose();
              return false;
            }
            if (Common.bgwConfirm.CancellationPending) {
              return false;
            }
          }

          if (tree.Count > 9) {
            Common.isManager = true;
            Common.mdLink = GetMdLink();
            if (Common.mdLink == null) {
              lblMessage.Text = "İdareci mesajları listelenemdi\r\nLütfen daha sonra tekrar deneyin";
              Common.driver.Dispose();
              return false;
            }
            Common.mdLink.Click();
            if (Common.bgwConfirm.CancellationPending) {
              return false;
            }
          }

          while (!Common.driver.PageSource.Contains("listelenmektedir")) {
            Thread.Sleep(100);
            if (Common.driver.PageSource.Contains("evrak bulunmamaktadır")) {
              lblReport.Text += "* Onaylanmamış mesaj yok.\r\n";
              lblMessage.Text = "Onaylanmamış mesaj yok";
              return false;
            }
            tryCount++;
            if (tryCount == 300) {
              lblReport.Text += "* Sayfa 30 saniye boyunca yanıt vermediği için işlem iptal edildi.\r\n";
              lblMessage.Text = "Sayfa 30 saniye boyunca yanıt vermediği için işlem iptal edildi";
              Common.driver.Dispose();
              return false;
            }
            if (Common.bgwConfirm.CancellationPending) {
              return false;
            }
          }
          IWebElement isler = WinHelpers.GetElementBy("i", "form:etiketFilter", out Common.msg);

          string sayi = isler.Text.Substring(23, isler.Text.Substring(23).IndexOf(" "));

          try {
            Common.totalMessages = Convert.ToInt32(sayi);
            pbProcess.Maximum = Common.totalMessages;
            lblReport.Text += $ "* {Common.totalMessages} adet okunmamış mesaj bulundu.\r\n";
            Common.ilksatir = WinHelpers.GetButtonElementBy("x", "/html/body/div[2]/div[4]/form/div[1]/div/div/div[2]/div/div[2]/table/tbody/tr[1]/td[6]", out Common.msg);
            Common.ilksatir?.Click();
            while (!Common.driver.PageSource.Contains("Gelen Evrak Gözden Geçirme") && !Common.driver.PageSource.Contains("Evrak Görüntüleme")) {
              Thread.Sleep(1000);
              if (Common.bgwConfirm.CancellationPending) {
                return false;
              }
            }

            lblReport.Text += "* Onaylama işlemi başlatılıyor...\r\n";

            for (int i = 0; i < Common.totalMessages; i++) {
              while (!Common.driver.PageSource.Contains("Gelen Evrak Gözden Geçirme") && !Common.driver.PageSource.Contains("Evrak Görüntüleme")) {
                Thread.Sleep(100);
                if (Common.bgwConfirm.CancellationPending) {
                  return false;
                }
              }

              IList < IWebElement > hiddenElements = Common.driver.FindElements(By.CssSelector("ui-dialog"));
              foreach(IWebElement item in hiddenElements) {
                Common.wait?.Until(e => ((IJavaScriptExecutor) Common.driver).ExecuteScript("arguments[0].setAttribute('style', 'display:none')", item));
                if (Common.bgwConfirm.CancellationPending) {
                  return false;
                }
              }

              IWebElement ? iframe = null;
              while (iframe == null) {
                iframe = WinHelpers.GetElementBy("i", "gozdenGecirmeEkraniId", out Common.msg);
                Thread.Sleep(500);
                if (Common.bgwConfirm.CancellationPending) {
                  return false;
                }
                if (Screen.PrimaryScreen?.Bounds.Height < 1080) WinHelpers.ZoomOut();
              }
              Common.driver.SwitchTo().Frame("gozdenGecirmeEkraniId");

              IWebElement ? okudum = null;
              if (Common.driver.PageSource.Contains("Okudum")) {
                okudum = WinHelpers.GetButtonElementBy("x", "//*[@id=\"formspanel:okudumBtn\"]", out Common.msg);
              }
              if (okudum != null) {
                okudum.Click();
                Common.confirmedMessages++;
                pbProcess.Value = Common.confirmedMessages;
                if (Common.bgwConfirm.CancellationPending) {
                  return false;
                }
              } else {
                IWebElement ? kapat = WinHelpers.GetButtonElementBy("x", "//*[@id=\"formspanel:_08001kapat2\"]", out Common.msg);
                if (kapat != null) {
                  kapat.Click();
                  Common.nonConfirmedMessages++;
                  if (Common.bgwConfirm.CancellationPending) {
                    return false;
                  }
                }
                continue;
              }
              while (!Common.driver.PageSource.Contains("Gelen Evrak Gözden Geçirme")) { // throws an error here
                Thread.Sleep(1000);
                if (Common.bgwConfirm.CancellationPending) {
                  return false;
                }
              }
            }
            return true;
          } catch (Exception ex) {
            Common.confirmError = true;
            msg = ex.Message;
            return false;
          }
        }

whimboo commented 9 months ago

@ozerkon when you mark the message as read, is the current iframe maybe removed, and a new one created for the new message? If yes, you would have to switch to the parent frame first and then find and select the new iframe. A trace log would be kinda helpful here. Maybe you can attach one (please not paste directly in here)?

ozerkon commented 8 months ago

First of all, I apologize for being late in responding. As for the answer to your question; No, the iframe does not disappear when a message is marked as read. As I said before, "the system works fine with Google Chrome".