MDL-57357 auth: add behat coverage for remember username login feature

diff --git a/auth/tests/behat/rememberusername.feature b/auth/tests/behat/rememberusername.feature
new file mode 100644 (file)
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+++ b/auth/tests/behat/rememberusername.feature
@@ -0,0 +1,50 @@
+@core @core_auth
+Feature: Test the 'remember username' feature works.
+  In order to see my saved username on the login form
+  As a user
+  I need to have logged in once before and clicked 'Remember username'
+
+  Background:
+    Given the following "users" exist:
+      | username |
+      | teacher1 |
+
+  # Given the user has logged in and selected 'Remember username', when they log in again, then their username should be remembered.
+  Scenario: Check that 'remember username' works without javascript for teachers.
+    # Log in the first time and check the 'remember username' box.
+    Given I am on homepage
+    And I click on "Log in" "link" in the ".logininfo" "css_element"
+    And I set the field "Username" to "teacher1"
+    And I set the field "Password" to "teacher1"
+    And I set the field "Remember username" to "1"
+    And I press "Log in"
+    And I log out
+    # Log out and check that the username was remembered.
+    When I am on homepage
+    And I click on "Log in" "link" in the ".logininfo" "css_element"
+    Then the field "username" matches value "teacher1"
+    And the field "Remember username" matches value "1"
+
+  # Given the user has logged in before and selected 'Remember username', when they log in again and unset 'Remember username', then
+  # their username should be forgotten for future log in attempts.
+  Scenario: Check that 'remember username' unsetting works without javascript for teachers.
+    # Log in the first time and check the 'remember username' box.
+    Given I am on homepage
+    And I click on "Log in" "link" in the ".logininfo" "css_element"
+    And I set the field "Username" to "teacher1"
+    And I set the field "Password" to "teacher1"
+    And I set the field "Remember username" to "1"
+    And I press "Log in"
+    And I log out
+    # Log in again, unsetting the 'remember username' field.
+    When I am on homepage
+    And I click on "Log in" "link" in the ".logininfo" "css_element"
+    And I set the field "Password" to "teacher1"
+    And I set the field "Remember username" to "0"
+    And I press "Log in"
+    And I log out
+    # Check username has been forgotten.
+    Then I am on homepage
+    And I click on "Log in" "link" in the ".logininfo" "css_element"
+    Then the field "username" matches value ""
+    And the field "Remember username" matches value "0"