[ECO-5338][Unit test] Created unittest setup class for initial setup

1. Updated LiveObjectTest to extend UnitTest class
2. Marked test utility methods as internal

Author: sacOO7

live-objects/build.gradle.kts

@@ -34,6 +34,7 @@ tasks.withType<Test>().configureEach {
 tasks.register<Test>("runLiveObjectUnitTests") {
     filter {
         includeTestsMatching("io.ably.lib.objects.unit.*")
+        exclude("**/UnitTest.class")
     }
 }
 

live-objects/src/test/kotlin/io/ably/lib/objects/integration/setup/IntegrationTest.kt

@@ -2,7 +2,6 @@ package io.ably.lib.objects.integration.setup
 
 import io.ably.lib.realtime.AblyRealtime
 import io.ably.lib.realtime.Channel
-import io.ably.lib.types.ClientOptions
 import kotlinx.coroutines.runBlocking
 import org.junit.After
 import org.junit.AfterClass
@@ -34,7 +33,7 @@ open class IntegrationTest {
    * @return The attached realtime channel.
    * @throws Exception If the channel fails to attach or the client fails to connect.
    */
-  suspend fun getRealtimeChannel(channelName: String, clientId: String = "client1"): Channel {
+  internal suspend fun getRealtimeChannel(channelName: String, clientId: String = "client1"): Channel {
     val client = realtimeClients.getOrPut(clientId) {
       sandbox.createRealtimeClient {
         this.clientId = clientId
@@ -51,7 +50,7 @@ open class IntegrationTest {
    * Generates a unique channel name for testing purposes.
    * This is mainly to avoid channel name/state/history collisions across tests in same file.
    */
-  fun generateChannelName(): String {
+  internal fun generateChannelName(): String {
     return "test-channel-${UUID.randomUUID()}"
   }
 

live-objects/src/test/kotlin/io/ably/lib/objects/integration/setup/Sandbox.kt

@@ -45,7 +45,7 @@ class Sandbox private constructor(val appId: String, val apiKey: String) {
           return JsonParser.parseString(fileContent).asJsonObject.get("post_apps")
       }
 
-      suspend fun createInstance(): Sandbox {
+      internal suspend fun createInstance(): Sandbox {
             val response: HttpResponse = client.post("https://sandbox.realtime.ably-nonprod.net/apps") {
                 contentType(ContentType.Application.Json)
                 setBody(loadAppCreationJson().toString())

live-objects/src/test/kotlin/io/ably/lib/objects/unit/LiveObjectTest.kt

@@ -1,14 +1,15 @@
 package io.ably.lib.objects.unit
 
-import org.junit.Assert.assertTrue
+import io.ably.lib.objects.unit.setup.UnitTest
+import kotlinx.coroutines.test.runTest
 import org.junit.Test
+import kotlin.test.assertNotNull
 
-class LiveObjectTest {
-
+class LiveObjectTest : UnitTest() {
   @Test
-  fun testLiveObjectCreationUnitTest() {
-    // This is a placeholder for the actual test implementation.
-    // You would typically create instances of LiveObjects and perform assertions here.
-    assertTrue(true)
+  fun testChannelObjectGetterTest() = runTest {
+    val channel = getMockRealtimeChannel("test-channel")
+    val objects = channel.objects
+    assertNotNull(objects)
   }
 }

live-objects/src/test/kotlin/io/ably/lib/objects/unit/setup/UnitTest.kt

@@ -0,0 +1,49 @@
+package io.ably.lib.objects.unit.setup
+
+import io.ably.lib.objects.integration.setup.ensureAttached
+import io.ably.lib.realtime.AblyRealtime
+import io.ably.lib.realtime.Channel
+import io.ably.lib.realtime.ChannelState
+import io.ably.lib.types.ClientOptions
+import io.mockk.every
+import io.mockk.mockk
+import io.mockk.spyk
+import org.junit.After
+import org.junit.runner.RunWith
+import org.junit.runners.BlockJUnit4ClassRunner
+
+// This class serves as a base for unit tests related to Live Objects.
+// It can be extended to include common setup or utility methods for unit tests.
+@RunWith(BlockJUnit4ClassRunner::class)
+open class UnitTest {
+
+  private val realtimeClients = mutableMapOf<String, AblyRealtime>()
+  internal fun getMockRealtimeChannel(channelName: String, clientId: String = "client1"): Channel {
+    val client = realtimeClients.getOrPut(clientId) {
+      AblyRealtime(ClientOptions().apply {
+        autoConnect = false
+        key = "keyName:Value"
+        this.clientId = clientId
+      })
+    }
+    val channel = client.channels.get(channelName)
+    return spyk(channel) {
+      every { attach() } answers {
+        state = ChannelState.attached
+      }
+      every { detach() } answers {
+        state = ChannelState.detached
+      }
+      every { subscribe(any<String>(), any()) } returns mockk(relaxUnitFun = true)
+      every { subscribe(any<Array<String>>(), any()) } returns mockk(relaxUnitFun = true)
+      every { subscribe(any()) } returns mockk(relaxUnitFun = true)
+    }.apply {
+      state = ChannelState.attached
+    }
+  }
+
+  @After
+  fun afterEach() {
+    realtimeClients.clear()
+  }
+}