diff --git a/plugins/libcalendaring/tests/resources/dummy-dupe.ics b/plugins/libcalendaring/tests/resources/dummy-dupe.ics
new file mode 100644
index 00000000..27302593
--- /dev/null
+++ b/plugins/libcalendaring/tests/resources/dummy-dupe.ics
@@ -0,0 +1,28 @@
+BEGIN:VCALENDAR
+METHOD:CANCEL
+PRODID:Microsoft Exchange Server 2010
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Arabian Standard Time
+BEGIN:STANDARD
+DTSTART:16010101T000000
+TZOFFSETFROM:+0400
+TZOFFSETTO:+0400
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T000000
+TZOFFSETFROM:+0400
+TZOFFSETTO:+0400
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+SUMMARY:Summary
+DTSTART;TZID=Arabian Standard Time:20240408T130000
+DTEND;TZID=Arabian Standard Time:20240408T170000
+UID:040000008200E00074C5B7101A82E0080000000040D4DAE32E7CDA01000000000000000
+ 010000000A04595C6E5B3E74CB3DA9E99CB902F2D
+END:VEVENT
+BEGIN:VEVENT
+UID:040000008200E00074C5B7101A82E0080000000040D4DAE32E7CDA01000000000000000
+ 010000000A04595C6E5B3E74CB3DA9E99CB902F2D
+END:VEVENT