From 72205fcfda395c6cc3e73aec9815b865c274b456 Mon Sep 17 00:00:00 2001
From: Andreas Pfurtscheller <1051396+aplr@users.noreply.github.com>
Date: Sat, 14 Oct 2023 12:52:52 +0200
Subject: [PATCH] Fix tests

---
 .../webapp/app/exam/manage/exams/exam-update.component.ts   | 2 +-
 src/main/webapp/app/exam/participate/exam.utils.ts          | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/main/webapp/app/exam/manage/exams/exam-update.component.ts b/src/main/webapp/app/exam/manage/exams/exam-update.component.ts
index 78ac39e5a86e..55642d60eb60 100644
--- a/src/main/webapp/app/exam/manage/exams/exam-update.component.ts
+++ b/src/main/webapp/app/exam/manage/exams/exam-update.component.ts
@@ -130,7 +130,7 @@ export class ExamUpdateComponent implements OnInit, OnDestroy {
     updateExamWorkingTime() {
         if (this.exam.testExam) return;
 
-        this.exam.workingTime = examWorkingTime(this.exam);
+        this.exam.workingTime = examWorkingTime(this.exam) ?? 0;
     }
 
     /**
diff --git a/src/main/webapp/app/exam/participate/exam.utils.ts b/src/main/webapp/app/exam/participate/exam.utils.ts
index 87f512833a79..d3038851c1b0 100644
--- a/src/main/webapp/app/exam/participate/exam.utils.ts
+++ b/src/main/webapp/app/exam/participate/exam.utils.ts
@@ -21,7 +21,8 @@ export const endTime = (exam: Exam, studentExam: StudentExam): dayjs.Dayjs | und
 };
 
 /**
- * Calculates the working time of the exam in seconds
+ * Calculates the working time of the exam in seconds.
+ * If either the exam or the exam dates are not set, undefined is returned.
  *
  * @param exam
  * @return {number | undefined}
@@ -29,7 +30,8 @@ export const endTime = (exam: Exam, studentExam: StudentExam): dayjs.Dayjs | und
 export const examWorkingTime = (exam?: Exam): number | undefined => normalWorkingTime(exam?.startDate, exam?.endDate);
 
 /**
- * Calculates the time between start and end date in seconds
+ * Calculates the time between start and end date in seconds.
+ * If either the start or end date is not set, undefined is returned.
  *
  * @param startDate
  * @param endDate