MOBILE-4550 quiz: Always display max number of decimals in grades

src/addons/mod/quiz/services/quiz.ts

@@ -30,7 +30,6 @@ import {
 import { CoreQuestionDelegate } from '@features/question/services/question-delegate';
 import { CoreSites, CoreSitesCommonWSOptions, CoreSitesReadingStrategy } from '@services/sites';
 import { CoreDomUtils } from '@services/utils/dom';
-import { CoreTextUtils } from '@services/utils/text';
 import { CoreTimeUtils } from '@services/utils/time';
 import { CoreUtils } from '@services/utils/utils';
 import { CoreStatusWithWarningsWSResponse, CoreWSExternalFile, CoreWSExternalWarning } from '@services/ws';
@@ -96,7 +95,7 @@ export class AddonModQuizProvider {
             return Translate.instant('addon.mod_quiz.notyetgraded');
         }
 
-        return CoreUtils.formatFloat(CoreTextUtils.roundToDecimals(grade, decimals));
+        return CoreUtils.formatFloat(grade.toFixed(decimals ?? 2));
     }
 
     /**

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

@@ -33,8 +33,8 @@ Feature: View list of attempts in the app
     Given I entered the quiz activity "Quiz 1" on course "Course 1" as "student1" in the app
     Then I should find "In progress" within "Attempt 2" "ion-item" in the app
     And I should find "Finished" within "Attempt 1" "ion-item" in the app
-    And I should find "100 / 100" within "Attempt 1" "ion-item" in the app
-    But I should not find "100" within "Attempt 2" "ion-item" in the app
+    And I should find "100.00 / 100.00" within "Attempt 1" "ion-item" in the app
+    But I should not find "100.00" within "Attempt 2" "ion-item" in the app
     And I should not find "Started" within "Your attempts" "ion-card" in the app
     And I should not find "Completed" within "Your attempts" "ion-card" in the app
     And I should not find "Marks" within "Your attempts" "ion-card" in the app
@@ -43,7 +43,7 @@ Feature: View list of attempts in the app
     When I press "Attempt 1" in the app
     Then I should find "Started" within "Your attempts" "ion-card" in the app
     And I should find "Completed" in the app
-    And I should find "1/1" within "Marks" "ion-item" in the app
+    And I should find "1.00/1.00" within "Marks" "ion-item" in the app
     And I should be able to press "Review" in the app
 
   @lms_from4.2
@@ -51,7 +51,7 @@ Feature: View list of attempts in the app
     Given the attempt at "Quiz 1" by "student1" was never submitted
     And I entered the quiz activity "Quiz 1" on course "Course 1" as "student1" in the app
     Then I should find "Never submitted" within "Attempt 2" "ion-item" in the app
-    But I should not find "100" within "Attempt 2" "ion-item" in the app
+    But I should not find "100.00" within "Attempt 2" "ion-item" in the app
 
     When I press "Attempt 2" in the app
     Then I should find "Started" within "Your attempts" "ion-card" in the app