diff --git a/chat-android/src/test/java/com/ably/chat/RoomLifecycleManagerTest.kt b/chat-android/src/test/java/com/ably/chat/RoomLifecycleManagerTest.kt
new file mode 100644
index 0000000..bd784b6
--- /dev/null
+++ b/chat-android/src/test/java/com/ably/chat/RoomLifecycleManagerTest.kt
@@ -0,0 +1,52 @@
+package com.ably.chat
+
+import io.ably.lib.types.AblyException
+import io.mockk.spyk
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.test.runTest
+import org.junit.Assert
+import org.junit.Test
+
+class RoomLifecycleManagerTest {
+    @Test
+    fun `(CHA-RL1a) Attach return when channel in already in attached state`() = runTest {
+        val status = spyk<DefaultStatus>().apply {
+            setStatus(RoomLifecycle.Attached)
+        }
+        val roomLifecycle = spyk(RoomLifecycleManager(status, listOf()))
+        val result = kotlin.runCatching { roomLifecycle.attach() }
+        Assert.assertTrue(result.isSuccess)
+    }
+
+    @Test
+    fun `(CHA-RL1b) Attach return when channel in releasing state`() = runTest {
+        val status = spyk<DefaultStatus>().apply {
+            setStatus(RoomLifecycle.Releasing)
+        }
+        val roomLifecycle = spyk(RoomLifecycleManager(status, listOf()))
+        val exception = Assert.assertThrows(AblyException::class.java) {
+            runBlocking {
+                roomLifecycle.attach()
+            }
+        }
+        Assert.assertEquals("unable to attach room; room is releasing", exception.errorInfo.message)
+        Assert.assertEquals(102_102, exception.errorInfo.code)
+        Assert.assertEquals(500, exception.errorInfo.statusCode)
+    }
+
+    @Test
+    fun `(CHA-RL1c) Attach return when channel in released state`() = runTest {
+        val status = spyk<DefaultStatus>().apply {
+            setStatus(RoomLifecycle.Released)
+        }
+        val roomLifecycle = spyk(RoomLifecycleManager(status, listOf()))
+        val exception = Assert.assertThrows(AblyException::class.java) {
+            runBlocking {
+                roomLifecycle.attach()
+            }
+        }
+        Assert.assertEquals("unable to attach room; room is released", exception.errorInfo.message)
+        Assert.assertEquals(102_103, exception.errorInfo.code)
+        Assert.assertEquals(500, exception.errorInfo.statusCode)
+    }
+}