diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Reservation/reservation.summary.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Reservation/reservation.summary.js
index 08e159f100f4fe368e5f5f4f280c6848a8db6899..f9e0d4405ed5e26e2a5315f0bf3bebf4ed556e9f 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Reservation/reservation.summary.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Reservation/reservation.summary.js
@@ -111,12 +111,13 @@ export class ReservationSummary extends Component {
             delete specifications['$schema'];
         }
 
+        const hasStopTime = !!reservation.stop_time
         let summaryFields = [
             {labelName:"Name", value: reservation.name, formatTime: false},
             {labelName:"Description", value: reservation.description, formatTime: false},
             {labelName:"Project", value: reservation.project_id, formatTime: false},
             {labelName:"Start Time", value: reservation.start_time, formatTime: true},
-            {labelName:"Stop Time", value: reservation.stop_time, formatTime: true},
+            {labelName:"Stop Time", value: hasStopTime ? reservation.stop_time : "-", formatTime: hasStopTime},
             {labelName:"Duration (HH:mm:ss)", value: reservation.stop_time ? UnitConverter.getSecsToHHmmss(reservation.duration) : "Unknown", formatTime: false},
           ]
 
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/WeekView.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/WeekView.js
index ffcdaa204f67b0abb473474f9f729c925f5c2f39..5b135cdd50740a7d646ae68e93c706aecf2519ab 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/WeekView.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/WeekView.js
@@ -107,7 +107,7 @@ export default function WeekView() {
     let actionsMenuRef = useRef()
 
     //general page info
-    const [permissions, setPermissions] = useState(undefined)
+    const [permissions, setPermissions] = useState()
     const [schedulerSettings, setSchedulerSettings] = useState({
         isDynamicSchedulerOn: undefined,
         isFixedTimeSchedulerOn: undefined,
@@ -133,8 +133,8 @@ export default function WeekView() {
         sunTimingsItems: []
     })
     const [headerSettings, setHeaderSettings] = useState({
-        timeSteps: timelineStore.timeSteps === undefined ? UIConstants.ALL_TIMESTEPS[0] : timelineStore.timeSteps,
-        unit: timelineStore.headerUnit === undefined ? "hour" : timelineStore.headerUnit,
+        timeSteps: timelineStore.timeSteps ?? UIConstants.ALL_TIMESTEPS[0],
+        unit: timelineStore.headerUnit ?? "hour",
         lstShiftInSeconds: undefined
     })
     const [visibleTime, setVisibleTime] = useState({
@@ -143,12 +143,12 @@ export default function WeekView() {
     })
 
     //timeline item pop-over component
-    const [mouseOverItem, setMouseOverItem] = useState(undefined)
+    const [mouseOverItem, setMouseOverItem] = useState()
     const [popPosition, setPopPosition] = useState({display: 'none'})
-    const [summaryItem, setSummaryItem] = useState(undefined)
+    const [summaryItem, setSummaryItem] = useState()
 
     //marker that also displays time information on thge group
-    const [cursorTimeUTC, setCursorTimeUTC] = useState(undefined)
+    const [cursorTimeUTC, setCursorTimeUTC] = useState()
     const [cursorInformation, setCursorInformation] = useState({
         utc: undefined,
         lst: undefined,
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/TimelineItemPopover.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/TimelineItemPopover.js
index fd3c18f78aef08715f63f0642cd7c0a93b017caf..6485cf1026a66d85530c964a15b97148a4d6621f 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/TimelineItemPopover.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/TimelineItemPopover.js
@@ -4,25 +4,30 @@ export function getFieldsHtml(fields, status = undefined, style = {}) {
     const labelClassName = status ? `col-5 su-${status}-icon` : 'col-5'
 
     return fields.map((field, index) => (
-        <div key={index} className="entry">
+        <div key={field.label + "-" + index} className="entry">
             <label className={labelClassName} style={style}>{field.label}</label>
             <div className="col-7 initial-line-height">{field.value}</div>
         </div>
     ))
 }
 
+const labelObject = (label, value) => ({
+    label: label,
+    value: value,
+})
+
 function getScheduleItem(mouseOverItem) {
     const scheduleItemFields = [
-        {label: "Project:", value: mouseOverItem.project},
-        {label: "Scheduling Unit:", value: mouseOverItem.name},
-        {label: "Scheduler:", value: mouseOverItem.scheduleMethod},
-        {label: "Start Time:", value: mouseOverItem.real_start_time},
-        {label: "End Time:", value: mouseOverItem.real_end_time},
-        {label: "Antenna Set:", value: mouseOverItem.antennaSet},
-        {label: "Stations:", value: mouseOverItem.stations},
-        {label: "Status:", value: mouseOverItem.status},
-        {label: "Exposure Time:", value: mouseOverItem.on_sky_duration},
-        {label: "Duration:", value: mouseOverItem.duration},
+        labelObject("Project:", mouseOverItem.project),
+        labelObject("Scheduling Unit:", mouseOverItem.name),
+        labelObject("Scheduler:", mouseOverItem.scheduleMethod),
+        labelObject("Start Time:", mouseOverItem.real_start_time),
+        labelObject("End Time:", mouseOverItem.real_end_time),
+        labelObject("Antenna Set:", mouseOverItem.antennaSet),
+        labelObject("Stations:", mouseOverItem.stations),
+        labelObject("Status:", mouseOverItem.status),
+        labelObject("Exposure Time:", mouseOverItem.on_sky_duration),
+        labelObject("Duration:", mouseOverItem.duration),
 
     ];
     if (mouseOverItem.status === 'unschedulable') {
@@ -38,17 +43,18 @@ function getScheduleItem(mouseOverItem) {
         </div>
     );
 }
+
 function getReservationItem(mouseOverItem) {
     let reservationItemFields = [
-        {label: "Name:", value: mouseOverItem.name},
-        {label: "Description:", value: mouseOverItem.desc},
-        {label: "Type:", value: mouseOverItem.activity_type},
-        {label: "Stations:", value: mouseOverItem.stations,},
-        {label: "Project:", value: mouseOverItem.project ? mouseOverItem.project : "-"},
-        {label: "Start Time:", value: mouseOverItem.real_start_time},
-        {label: "End Time:", value: mouseOverItem.real_end_time},
-        {label: "Duration:", value: mouseOverItem.duration},
-        {label: "Planned:", value: mouseOverItem.planned ? "Yes" : "No"},
+        labelObject("Name:", mouseOverItem.name),
+        labelObject("Description:", mouseOverItem.desc),
+        labelObject("Type:", mouseOverItem.activity_type),
+        labelObject("Stations:", mouseOverItem.stations,),
+        labelObject("Project:", mouseOverItem.project ? mouseOverItem.project : "-"),
+        labelObject("Start Time:", mouseOverItem.real_start_time),
+        labelObject("End Time:", mouseOverItem.real_end_time),
+        labelObject("Duration:", mouseOverItem.duration),
+        labelObject("Planned:", mouseOverItem.planned ? "Yes" : "No"),
     ];
 
     const reservationStyle = {
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeInfo.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeInfo.js
index 0ce9a61aa31d5fbab4a2f0a489bc10e42c862d3d..3f299a3bd23878cd2fbe0db0f5ba62d1d9152830 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeInfo.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeInfo.js
@@ -13,8 +13,8 @@ function getDateOrTimeElement(title, element) {
 }
 
 export default function DateTimeInfo() {
-    const [currentUTC, setCurrentUTC] = useState(undefined)
-    const [currentLST, setCurrentLST] = useState(undefined)
+    const [currentUTC, setCurrentUTC] = useState()
+    const [currentLST, setCurrentLST] = useState()
 
 
     useEffect(() => { // initializer
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeNavigator.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeNavigator.js
index 3b4df1106018ac1aee12869260ee750994148ffc..d26ea8093e61e37e6592218969bb33348a00bb9a 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeNavigator.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/DateTimeNavigator.js
@@ -56,7 +56,7 @@ function getDateSelector(isRange, startTime, setStartAndEndTimeCallback) {
 }
 
 function getWeekChanger(isRange, startTime, endTime, setStartAndEndTimeCallback) {
-    if (isRange || startTime === undefined || endTime === undefined) {
+    if (isRange || !startTime|| !endTime) {
         return null
     }
     const weekNumbers = startTime.week() === endTime.week() ? startTime.week() : startTime.week() + "," + endTime.week()
@@ -124,7 +124,7 @@ export default function DateTimeNavigator(props) {
     } = props
 
 
-    const [suIdInput, setSUIdInput] = useState(undefined)
+    const [suIdInput, setSUIdInput] = useState()
     const [searchForSUIdTrigger, setSearchForSUIdTrigger] = useState(false)
 
     useEffect(() => {
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/Filters.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/Filters.js
index 679d8b754b805e596052bfcb83873393bf4c3f0b..6f0d48387342e0f1021de87756b9de899da9139a 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/Filters.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/Filters.js
@@ -92,16 +92,16 @@ export default function Filters(props) {
         projectNames: []
     })
 
-    const [onSkyToggle, setOnSkyToggle] = useState(timelineStore.onSkyToggle === undefined ? true : timelineStore.onSkyToggle)
+    const [onSkyToggle, setOnSkyToggle] = useState(timelineStore.onSkyToggle ?? true)
 
-    const [reservationsToggle, setReservationsToggle] = useState(timelineStore.reservationsToggle === undefined ? false : timelineStore.reservationsToggle)
-    const [reservationFilter, setReservationFilter] = useState(timelineStore.reservationFilter === undefined ? multiSelectAllOptions.reservationReasons : timelineStore.reservationFilter)
+    const [reservationsToggle, setReservationsToggle] = useState(timelineStore.reservationsToggle ?? false)
+    const [reservationFilter, setReservationFilter] = useState(timelineStore.reservationFilter ?? multiSelectAllOptions.reservationReasons)
 
-    const [schedulingUnitsToggle, setSchedulingUnitsToggle] = useState(timelineStore.schedulingUnitsToggle === undefined ? true : timelineStore.schedulingUnitsToggle)
-    const [schedulingUnitFilter, setSchedulingUnitFilter] = useState(timelineStore.schedulingUnitFilter === undefined ? multiSelectAllOptions.schedulingUnitStatuses : timelineStore.schedulingUnitFilter)
+    const [schedulingUnitsToggle, setSchedulingUnitsToggle] = useState(timelineStore.schedulingUnitsToggle ?? true)
+    const [schedulingUnitFilter, setSchedulingUnitFilter] = useState(timelineStore.schedulingUnitFilter ?? multiSelectAllOptions.schedulingUnitStatuses)
 
-    const [projectToggle, setProjectToggle] = useState(timelineStore.projectToggle === undefined ? true : timelineStore.projectToggle)
-    const [projectFilter, setProjectFilter] = useState(timelineStore.projectFilter === undefined ? multiSelectAllOptions.projectNames : timelineStore.projectFilter)
+    const [projectToggle, setProjectToggle] = useState(timelineStore.projectToggle ?? true)
+    const [projectFilter, setProjectFilter] = useState(timelineStore.projectFilter ?? multiSelectAllOptions.projectNames)
 
 
     useEffect(() => { //initializer
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/ZoomAndMove.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/ZoomAndMove.js
index 1a0a99084e32bf984eb6459ab391be7c9dc459c9..ba36400db6ede1c300e81e65ec136d572982abc8 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/ZoomAndMove.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/components/toolbar/ZoomAndMove.js
@@ -157,9 +157,7 @@ export default function ZoomAndMove(props) {
     } = props
 
     const [zoomSettings, setZoomSettings] = useState({
-        zoomLevelName: timelineStore.zoomLevelName === undefined
-            ? UIConstants.DEFAULT_ZOOM_LEVEL.name
-            : timelineStore.zoomLevelName,
+        zoomLevelName: timelineStore.zoomLevelName ?? UIConstants.DEFAULT_ZOOM_LEVEL.name,
         selectedTime: timelineStore.selectedTime,
     });
 
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/data/filters.data.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/data/filters.data.js
index dbafc86aa7e9ed4d7e9bf0330dd6d9f9974e272d..a4fd79bb19672672a59b16997c17f38fddff02b6 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/data/filters.data.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/data/filters.data.js
@@ -6,7 +6,7 @@ import UtilService from "../../../services/util.service";
 async function fetchReservationTemplatesGetReasons() {
     let reasons = []
     UtilService.getReservationTemplates().then(templates => {
-        const reservationTemplate = templates.length > 0 ? templates[0] : null; //use the first if there are templates found
+        const reservationTemplate = templates[0] ?? null; //use the first if there are templates found
         if (reservationTemplate) {
             let foundTemplateReason = reservationTemplate.ref_resolved_schema?.properties?.activity?.properties?.type?.enum;
             foundTemplateReason.forEach(reason => {
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/timeline.headers.helper.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/timeline.headers.helper.js
index 8ffc3e85c72b131b7e5fa5c42ed7db691bd0beb5..72c42e181ed74172a109b8885825e3f9f93e156b 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/timeline.headers.helper.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/timeline.headers.helper.js
@@ -1,13 +1,10 @@
 import React from "react";
-import moment from "moment/moment";
-import UIConstants from "../../../utils/ui.constants";
 
-// parameters 'getIntervalProps, intervalContext' are mandatory for the library
 /**
  * Shifts the header intervals for the LST time header
  * Library's documentation about date header renderers: https://github.com/namespace-ee/react-calendar-timeline#dateheader
  * @param getIntervalProps mandatory by library
- * @param intervalContext
+ * @param intervalContext mandatory by library
  * @param lstShiftInSeconds based on the visible start time of the Timeline in utc, the corresponding lst time is retrieved
  * and the approximate shift between the two is calculated for the header intervals. It is not a 100% correct, but close enough
  * @return {JSX.Element}
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/toolbar/filters.helper.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/toolbar/filters.helper.js
index a6889e5ae7e0aa25cf00c7d9a5de2353dc80d3d2..5f9d4e92a71c6fcece7b563b8d40bdeb69529b84 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/toolbar/filters.helper.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/toolbar/filters.helper.js
@@ -62,7 +62,7 @@ export function splitObjectIfSpanIsMultipleDays(element, shouldShowOnSkyTimes) {
         throw new TypeError("Start and/or stop times are not invalid for:\n" + JSON.stringify(element))
     }
 
-    if (spanInDays > 0) {
+    if (spanInDays) {
         return splitElementPerDay(element, spanInDays, shouldShowOnSkyTimes)
     }
     return [element]
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/week.view.helper.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/week.view.helper.js
index 6d35aa46274a1498401a5d3eccfef385557be9f5..57e1f529255cb08d65bda749059cd9a93ce88f5f 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/week.view.helper.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/helpers/week.view.helper.js
@@ -65,53 +65,66 @@ export async function updateSchedulerStatuses(switchValue, status, setSchedulerS
     }
 }
 
+const actionObject = (title, icon, classes, className, callbackProp, content, type, actOn) => ({
+    title: title,
+    icon: icon,
+    classes: classes,
+    className: className,
+    content: content,
+    type: type,
+    actOn: actOn,
+    props: callbackProp
+})
+
+const actionButtonObject = (title, icon, classes, callbackProp) => (
+    actionObject(title, icon, classes, undefined, callbackProp, undefined,"button", "click")
+)
+
+const actionTagObject = (title, content, className) => (
+    actionObject(title, undefined, undefined, className, undefined, content, "tag", "click")
+)
+
 export function getHeaderActions(isLoading, setRefetchToggle, refetchToggle, actionsMenuRef) {
     return [
-        {
-            title: (isLoading ? "System is already reloading the timeline data" : "Reload the timeline data"),
-            icon: "fa-" + (isLoading ? "hourglass fa-spin" : "sync-alt"),
-            classes: `subsystem subsystem--${isLoading ? "on" : "standard"}`,
-            type: "button",
-            actOn: "click",
-            props: {callback: () => setRefetchToggle(!refetchToggle)}
-        },
-        {
-            title: "Options",
-            icon: "fa-bars",
-            classes: "subsystem subsystem--standard",
-            type: "button",
-            actOn: "click",
-            props: {callback: (ev) => actionsMenuRef.current.toggle(ev)},
-        },
+        actionButtonObject(
+            isLoading ? "System is already reloading the timeline data" : "Reload the timeline data",
+            "fa-" + (isLoading ? "hourglass fa-spin" : "sync-alt"),
+            `subsystem subsystem--${isLoading ? "on" : "standard"}`,
+            {callback: () => setRefetchToggle(!refetchToggle)}
+        ),
+        actionButtonObject(
+            "Options",
+            "fa-bars",
+            "subsystem subsystem--standard",
+            {callback: (ev) => actionsMenuRef.current.toggle(ev)}
+        ),
     ];
 }
 
+
 export function getSchedulerActions(schedulerSettings, setShowSchedulerSettingsDialog) {
     return [
-        {
-            content: "D",
-            title: schedulerSettings.isDynamicSchedulerOn ? "Dynamic Scheduling is On" : "Dynamic Scheduling is Off",
-            className: "tag tag--" + (schedulerSettings.isDynamicSchedulerOn ? "on" : "off"),
-            type: "tag"
-        },
-        {
-            content: "F",
-            title: schedulerSettings.isFixedTimeSchedulerOn ? "Fixed time Scheduling is On" : "Fixed time Scheduling is Off",
-            className: "tag tag--" + (schedulerSettings.isFixedTimeSchedulerOn ? "on" : "off"),
-            type: "tag"
-        },
-        {
-            title: (schedulerSettings.isDynamicSchedulerActive ? "Dynamic Scheduler is Active" : (schedulerSettings.isDynamicSchedulerOn ? "Dynamic Scheduler is Idle" : "Dynamic Scheduler is stopped")) + ". Click to change the scheduler",
-            icon: "fa-" + (schedulerSettings.isDynamicSchedulerActive ? "play" : (schedulerSettings.isDynamicSchedulerOn ? "pause" : "stop")),
-            classes: "subsystem subsystem--" + (schedulerSettings.isDynamicSchedulerActive ? "on" : (schedulerSettings.isDynamicSchedulerOn ? "paused" : "off")),
-            type: "button",
-            actOn: "click",
-            props: {callback: () => setShowSchedulerSettingsDialog(true)}
-        },
+        actionTagObject(
+            schedulerSettings.isDynamicSchedulerOn ? "Dynamic Scheduling is On" : "Dynamic Scheduling is Off",
+            "D",
+            "tag tag--" + (schedulerSettings.isDynamicSchedulerOn ? "on" : "off")
+        ),
+        actionTagObject(
+            schedulerSettings.isFixedTimeSchedulerOn ? "Fixed time Scheduling is On" : "Fixed time Scheduling is Off",
+            "F",
+            "tag tag--" + (schedulerSettings.isFixedTimeSchedulerOn ? "on" : "off")
+        ),
+        actionButtonObject(
+            (schedulerSettings.isDynamicSchedulerActive ? "Dynamic Scheduler is Active" :
+                (schedulerSettings.isDynamicSchedulerOn ? "Dynamic Scheduler is Idle" : "Dynamic Scheduler is stopped")) + ". Click to change the scheduler",
+            "fa-" + (schedulerSettings.isDynamicSchedulerActive ? "play" : (schedulerSettings.isDynamicSchedulerOn ? "pause" : "stop")),
+            "subsystem subsystem--" + (schedulerSettings.isDynamicSchedulerActive ? "on" : (schedulerSettings.isDynamicSchedulerOn ? "paused" : "off")),
+            {callback: () => setShowSchedulerSettingsDialog(true)}
+        )
     ];
 }
 
-export function getPageHeaderOptionsMenuItems(permissions) {
+export function getPageHeaderOptionsMenuItems(permissions) { //TODO factory method
     return [
         {
             label: 'Add Reservation',
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.js b/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.js
index 1f0b98dcbb9bf9bf0f6105b736f9004709b5a68f..56ba195f8ac0066a93142f07f626fd8dadb55dc5 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.js
@@ -98,8 +98,7 @@ const UnitConverter = {
     },
     getSecsToHrsWithFractionDigits: function (seconds, fractionDigits = 2) {
         if (typeof seconds !== "number" || isNaN(seconds)) {
-            console.error("Cannot convert a wrong value. Must be a number", seconds)
-            return "Invalid"
+            throw TypeError("Cannot convert a wrong value. Must be a number")
         }
         return (seconds / 3600).toFixed(fractionDigits)
     },
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.test.js b/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.test.js
index c52cf8c7ef3f536bfdbe08f6cae0c5ea73350a79..c48d61acda20b9d220dc3b331708c6bd833eb3a0 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.test.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/utils/unit.converter.test.js
@@ -1,5 +1,4 @@
 import UnitConverter from "./unit.converter";
-import {getConstraintTemplate} from "../routes/Scheduling/create.helper";
 
 describe('getSubbandOutput', () => {
     test.each(['', null, undefined])('should return empty array on not specified input', (subbandStringInput) => {
@@ -76,16 +75,9 @@ describe('getSecsToHrsWithFractionDigits', () => {
     });
 
     test.each(["12", null, undefined, []])('Should log an error and return "Invalid" for wrong input: %s', (wrongSeconds) => {
-         const consoleErrorSpy = jest.spyOn(console, 'error').mockImplementation();
 
-        const result = UnitConverter.getSecsToHrsWithFractionDigits(wrongSeconds);
-
-        expect(result).toBe("Invalid");
-        expect(consoleErrorSpy).toHaveBeenCalledWith(
-            'Cannot convert a wrong value. Must be a number',
-            wrongSeconds
-        );
-
-        consoleErrorSpy.mockRestore();
+        expect(() => {
+            UnitConverter.getSecsToHrsWithFractionDigits(wrongSeconds);
+        }).toThrow(TypeError)
     })
 });
\ No newline at end of file