Add Activity Exceptions

Author: Gerrit Garbereder

Task-Tracker-Entities/src/commonMain/kotlin/com/garbereder/tasktracker/entities/ActivityNotFoundException.kt

@@ -0,0 +1,4 @@
+package com.garbereder.tasktracker.entities
+
+class ActivityNotFoundException(activity: Activity): Exception("Could not find activity: $activity") {
+}

Task-Tracker-Entities/src/commonTest/kotlin/com/garbereder/tasktracker/entities/ActivityNotFoundExceptionTests.kt

@@ -0,0 +1,21 @@
+package com.garbereder.tasktracker.entities
+
+import kotlinx.datetime.Clock
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class ActivityNotFoundExceptionTests {
+
+    @Test
+    fun testMessage() {
+        val task = Task("TaskId", "TaskName")
+        val start = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+        val end = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+        val activity = Activity("1", start, end, task )
+        val ex = ActivityNotFoundException(activity)
+        assertEquals("Could not find activity: Activity(id=1, start=${start}, end=${end}, task=${task})", ex.message)
+    }
+
+}