Add unit test for DefaultRoomAliasSuggestionsDataSource

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/messagecomposer/DefaultRoomAliasSuggestionsDataSourceTest.kt

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2024 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.messages.impl.messagecomposer
+
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.matrix.test.A_ROOM_ALIAS
+import io.element.android.libraries.matrix.test.A_ROOM_ID_2
+import io.element.android.libraries.matrix.test.room.aRoomSummary
+import io.element.android.libraries.matrix.test.roomlist.FakeRoomListService
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class DefaultRoomAliasSuggestionsDataSourceTest {
+    @Test
+    fun `DefaultRoomAliasSuggestionsDataSource must emit a list of room alias suggestions`() = runTest {
+        val roomListService = FakeRoomListService()
+        val sut = DefaultRoomAliasSuggestionsDataSource(
+            roomListService
+        )
+        val aRoomSummaryWithAnAlias = aRoomSummary(
+            canonicalAlias = A_ROOM_ALIAS
+        )
+        sut.getAllRoomAliasSuggestions().test {
+            assertThat(awaitItem()).isEmpty()
+            roomListService.postAllRooms(
+                listOf(
+                    aRoomSummary(roomId = A_ROOM_ID_2, canonicalAlias = null),
+                    aRoomSummaryWithAnAlias,
+                )
+            )
+            assertThat(awaitItem()).isEqualTo(
+                listOf(
+                    RoomAliasSuggestion(
+                        roomAlias = A_ROOM_ALIAS,
+                        roomSummary = aRoomSummaryWithAnAlias
+                    )
+                )
+            )
+        }
+    }
+}