MOBILE-4132 Book: Fix single activity navigation

Author: alfonso-salces

src/addons/mod/book/components/index/index.ts

@@ -18,6 +18,7 @@ import { AddonModBook, AddonModBookBookWSData, AddonModBookNumbering, AddonModBo
 import { CoreCourseContentsPage } from '@features/course/pages/contents/contents';
 import { CoreCourse } from '@features/course/services/course';
 import { CoreNavigator } from '@services/navigator';
+import { AddonModBookModuleHandlerService } from '../../services/handlers/module';
 
 /**
  * Component that displays a book entry page.
@@ -109,14 +110,11 @@ export class AddonModBookIndexComponent extends CoreCourseModuleMainResourceComp
      *
      * @param chapterId Chapter to open, undefined for last chapter viewed.
      */
-    openBook(chapterId?: number): void {
-        CoreNavigator.navigate('contents', {
-            params: {
-                cmId: this.module.id,
-                courseId: this.courseId,
-                chapterId,
-            },
-        });
+    async openBook(chapterId?: number): Promise<void> {
+        await CoreNavigator.navigateToSitePath(
+            `${AddonModBookModuleHandlerService.PAGE_NAME}/${this.courseId}/${this.module.id}/contents`,
+            { params: { chapterId } },
+        );
 
         this.hasStartedBook = true;
     }

src/addons/mod/book/tests/behat/single_activity.feature

@@ -0,0 +1,33 @@
+@app @javascript @mod @mod_book
+Feature: Test single activity of book type in app
+  In order to view a book while using the mobile app
+  As a student
+  I need single activity of book type functionality to work
+
+  Background:
+    Given the following "users" exist:
+      | username | firstname | lastname |
+      | student1 | First     | Student  |
+    And the following "courses" exist:
+      | fullname | shortname | category | format         | activitytype |
+      | Course 1 | C1        | 0        | singleactivity | book         |
+    And the following "course enrolments" exist:
+      | user     | course | role    |
+      | student1 | C1     | student |
+    And the following "activity" exist:
+      | activity | name                 | intro                 | course | idnumber | numbering | section |
+      | book     | Single activity book | Test book description | C1     | 1        | 1         | 0       |
+    And the following "mod_book > chapter" exist:
+      | book                 | title   | content                    | subchapter | hidden | pagenum |
+      | Single activity book | Chapt 1 | This is the first chapter  | 0          | 0      | 1       |
+      | Single activity book | Chapt 2 | This is the second chapter | 0          | 0      | 1       |
+      | Single activity book | Chapt 3 | This is the third chapter  | 0          | 0      | 1       |
+
+  Scenario: Single activity book
+    Given I entered the course "Course 1" as "student1" in the app
+    Then I should find "Chapt 1" in the app
+    And I should find "Chapt 2" in the app
+    And I press "Chapt 1" in the app
+    Then I should find "Chapt 1" in the app
+    And I should find "This is the first chapter" in the app
+    But I should not find "This is the second chapter" in the app