MOBILE-4428 quiz: Fix adaptive behaviour

src/addons/mod/quiz/tests/behat/quiz_adaptive.feature

@@ -0,0 +1,50 @@
+@mod @mod_quiz @app @javascript
+Feature: Use adaptive quizzes in the app
+
+  Background:
+    Given the following "courses" exist:
+      | fullname | shortname |
+      | Course 1 | C1        |
+    And the following "users" exist:
+      | username |
+      | student1 |
+    And the following "course enrolments" exist:
+      | user     | course | role    |
+      | student1 | C1     | student |
+    And the following "activities" exist:
+      | activity | name | course | idnumber | preferredbehaviour |
+      | quiz     | Quiz | C1     | quiz     | adaptive           |
+    And the following "question categories" exist:
+      | contextlevel | reference | name           |
+      | Course       | C1        | Test questions |
+    And the following "questions" exist:
+      | questioncategory | qtype       | name |
+      | Test questions   | multichoice | TF1  |
+    And quiz "Quiz" contains the following questions:
+      | question | page |
+      | TF1      | 1    |
+
+  Scenario: Checks answers before submitting
+    Given I entered the quiz activity "Quiz" on course "Course 1" as "student1" in the app
+    And I press "Attempt quiz now" in the app
+
+    When I press "Two" in the app
+    And I press "Check" in the app
+    And I press "OK" near "Are you sure?" in the app
+    Then I should find "That is not right at all" in the app
+
+    When I press "Two" in the app
+    And I press "One" in the app
+    And I press "Check" in the app
+    And I press "OK" near "Are you sure?" in the app
+    Then I should find "Parts, but only parts, of your response are correct" in the app
+
+    When I press "Three" in the app
+    And I press "Check" in the app
+    And I press "OK" near "Are you sure?" in the app
+    Then I should find "Well done" in the app
+
+    When I press "Submit" in the app
+    And I press "Submit all and finish" in the app
+    And I press "OK" near "Once you submit" in the app
+    Then I should find "Mark 0.33 out of 1.00" in the app

src/addons/mod/quiz/tests/behat/quiz_navigation.feature

@@ -1,8 +1,5 @@
 @mod @mod_quiz @app @javascript
-Feature: Attempt a quiz in app
-  As a student
-  In order to demonstrate what I know
-  I need to be able to attempt quizzes
+Feature: Navigate through a quiz in the app
 
   Background:
     Given the following "courses" exist:

src/core/features/question/components/question/core-question.html

@@ -21,7 +21,9 @@
 <!-- Question behaviour buttons. -->
 <ion-button *ngFor="let button of question?.behaviourButtons" class="ion-margin-vertical ion-text-wrap" expand="block"
     (click)="buttonClicked.emit(button)" [disabled]="button.disabled">
-    {{ button.value }}
+    <core-format-text [component]="component" [componentId]="componentId" [text]="button.value" [contextLevel]="contextLevel"
+        [contextInstanceId]="contextInstanceId" [courseId]="courseId">
+    </core-format-text>
 </ion-button>
 
 <!-- Question feedback. -->

src/core/features/question/services/question-helper.ts

@@ -42,18 +42,34 @@ export class CoreQuestionHelperProvider {
      * @param question Question.
      * @param button Behaviour button (DOM element).
      */
-    protected addBehaviourButton(question: CoreQuestionQuestion, button: HTMLInputElement): void {
+    protected addBehaviourButton(question: CoreQuestionQuestion, button: HTMLElement): void {
         if (!button || !question) {
             return;
         }
 
         question.behaviourButtons = question.behaviourButtons || [];
 
         // Extract the data we want.
+        if (button instanceof HTMLInputElement) {
+            // Old behaviour that changed in 4.2 because of MDL-78874.
+            question.behaviourButtons.push({
+                id: button.id,
+                name: button.name,
+                value: button.value,
+                disabled: button.disabled,
+            });
+
+            return;
+        }
+
+        if (!(button instanceof HTMLButtonElement)) {
+            return;
+        }
+
         question.behaviourButtons.push({
             id: button.id,
             name: button.name,
-            value: button.value,
+            value: button.innerHTML,
             disabled: button.disabled,
         });
     }
@@ -109,7 +125,7 @@ export class CoreQuestionHelperProvider {
             return;
         }
 
-        selector = selector || '.im-controls input[type="submit"]';
+        selector = selector || '.im-controls [type="submit"]';
 
         const element = CoreDomUtils.convertToElement(question.html);