Fix randomness with integration tests

The notification message pops up and hide after few seconds.
Sometimes, chrome drivers tries to click on a button that moves due
to the notification message animation and thus miss it.

test/features/redirection.feature

@@ -8,6 +8,7 @@ Feature: User is correctly redirected
   Scenario: User is redirected to home page after several authentication tries
     When I visit "https://public.test.local:8080/secret.html"
     And I login with user "john" and password "badpassword"
+    And I wait for notification to disappear
     And I clear field "username"
     And I login with user "john" and password "password" 
     And I use "REGISTERED" as TOTP token handle

test/features/step_definitions/authentication.ts

@@ -11,6 +11,15 @@ Cucumber.defineSupportCode(function ({ Given, When, Then }) {
     return this.visit(link);
   });
 
+  When("I wait for notification to disappear", function() {
+    const that = this;
+    const notificationEl = this.driver.findElement(seleniumWebdriver.By.className("notification"));
+    return this.driver.wait(seleniumWebdriver.until.elementIsVisible(notificationEl), 15000)
+    .then(function() {
+      return that.driver.wait(seleniumWebdriver.until.elementIsNotVisible(notificationEl), 15000);
+    })
+  })
+
   When("I set field {stringInDoubleQuotes} to {stringInDoubleQuotes}", function (fieldName: string, content: string) {
     return this.setFieldTo(fieldName, content);
   });

test/features/step_definitions/notifications.ts

@@ -10,7 +10,7 @@ Cucumber.defineSupportCode(function ({ Given, When, Then }) {
     function (notificationType: string, notificationMessage: string) {
       const that = this;
       const notificationEl = this.driver.findElement(seleniumWebdriver.By.className("notification"));
-      return this.driver.wait(seleniumWebdriver.until.elementIsVisible(notificationEl), 2000)
+      return this.driver.wait(seleniumWebdriver.until.elementIsVisible(notificationEl), 5000)
         .then(function () {
           return notificationEl.getText();
         })