Add tests on TimelineItemActionComparator

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/model/TimelineItemActionComparator.kt

@@ -7,9 +7,12 @@
 
 package io.element.android.features.messages.impl.actionlist.model
 
+import androidx.annotation.VisibleForTesting
+
 class TimelineItemActionComparator : Comparator<TimelineItemAction> {
     // See order in https://www.figma.com/design/ux3tYoZV9WghC7hHT9Fhk0/Compound-iOS-Components?node-id=2946-2392
-    private val orderedList = listOf(
+    @VisibleForTesting
+    val orderedList = listOf(
         TimelineItemAction.EndPoll,
         TimelineItemAction.ViewInTimeline,
         TimelineItemAction.Reply,

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/actionlist/model/TimelineItemActionComparatorTest.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ * Please see LICENSE in the repository root for full details.
+ */
+
+package io.element.android.features.messages.impl.actionlist.model
+
+import org.junit.Test
+
+class TimelineItemActionComparatorTest {
+    @Test
+    fun `check that the list in the comparator only contain each item once`() {
+        val sut = TimelineItemActionComparator()
+        sut.orderedList.forEach {
+            require(sut.orderedList.count { item -> item == it } == 1, { "Duplicate ${it::class.java}.$it" })
+        }
+    }
+
+    @Test
+    fun `check that the list in the comparator contains all the items`() {
+        val sut = TimelineItemActionComparator()
+        TimelineItemAction.entries.forEach {
+            require(it in sut.orderedList, { "Missing ${it::class.simpleName}.$it in orderedList" })
+        }
+    }
+}