How to perform Negative Testing?

How to perform Negative Testing?

Ans:

                Objectives: Failure Message will be shown.

                Problems/ Issues:

·         Implementation is not done properly.

·         Success message is shown on that specific case.

Solution/ Checking procedure:

·         On that case, first check the success message has shown or not. If success message is shown, then the failure message is not exists.

Code:

                        Part1:

public boolean checkFileBigSizeAlertExists() throws NumberFormatException, IOException {

                         try { 

                                  waitForElement(successMsgOfEmpUpdate, Integer.valueOf(PropertyLoader.loadProperty("implicit_timeout_sec_120")));

if (driverW.findElement(By.cssSelector(".page-con.page-con-ajax .alert.alert-success")) != null) {

                                                  return false;

                                    } else {

                                                 return true;

                                    }

                          } catch (NoSuchElementException e) {

                                    return true;

                          }

                  }

                        Part2:

                        boolean bigSizeAlertExists = employeesPage.checkFileBigSizeAlertExists();

                        Assert.assertEquals(bigSizeAlertExists, true, "Profile picture with extra size succuessfully uploaded");