Add scenario to feature "Password change"

features/desktop/password_change.feature

@@ -1,6 +1,8 @@
 Feature: Password change
-  Scenario: with valid credentials
+  Background:
     Given I am signed in with email "user@example.com" and password "password"
+
+  Scenario: with valid credentials
     When I visit "/users/edit"
     And I fill form with the following data:
       | key                  | value    |
@@ -19,3 +21,22 @@ Feature: Password change
 
     When I try to sign in with email "user@example.com" and password "q1w2e3r4"
     Then I am signed in as "user@example.com"
+
+  Scenario: with invalid password
+    When I visit "/users/edit"
+    And I fill form with the following data:
+      | key                  | value    |
+      | Пароль               | q1w2e3r4 |
+      | Подтверждение пароля | q1w2e3r4 |
+      | Текущий пароль       | invalid  |
+    And I click the form button "Обновить"
+    Then the password is failed to change
+
+    When I try to sign out
+    Then I am successfully signed out
+
+    When I try to sign in with email "user@example.com" and password "q1w2e3r4"
+    Then I fail to sign in
+
+    When I try to sign in with email "user@example.com" and password "password"
+    Then I am signed in as "user@example.com"

features/step_definitions/user.rb

@@ -107,3 +107,10 @@ Then 'the password is successfully changed' do
   expect(page).to have_css 'div.alert.alert-info',
                            text: 'Ваша учетная запись изменена.'
 end
+
+Then 'the password is failed to change' do
+  expect(page.current_path).to eq '/users'
+  expect(page).to have_css 'div.alert.alert-danger',
+                           text: 'Пожалуйста, исправьте следующие ошибки:'
+  expect(page).to have_text 'Текущий пароль имеет неверное значение'
+end