Add Nextcloud test for all day task

app/src/test/java/org/tasks/caldav/NextCloudTests.kt

@@ -46,6 +46,14 @@ class NextCloudTests {
                 vtodo("nextcloud/basic_due_date.txt").dueDate)
     }
 
+    @Test
+    fun readAllDayTask() {
+        assertEquals(
+                Task.createDueDate(Task.URGENCY_SPECIFIC_DAY, DateTime(2021, 2, 1).millis),
+                vtodo("nextcloud/all_day_task.txt").dueDate
+        )
+    }
+
     @Test
     fun priorityNoStars() {
         assertEquals(Task.Priority.NONE, vtodo("nextcloud/priority_no_stars.txt").priority)

app/src/test/resources/nextcloud/all_day_task.txt

@@ -0,0 +1,12 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Nextcloud Tasks v0.13.6
+BEGIN:VTODO
+UID:838bdba9-f511-4dc7-8686-aaad8728e9bd
+CREATED:20210127T195122
+LAST-MODIFIED:20210127T195128
+DTSTAMP:20210127T195128
+SUMMARY:All day task
+DUE;VALUE=DATE:20210201
+END:VTODO
+END:VCALENDAR