Basic initialization test added

firebase-messaging/src/androidInstrumentedTest/kotlin/dev/gitlive/firebase/messaging/messaging.kt

@@ -0,0 +1,28 @@
+package dev.gitlive.firebase.messaging
+
+import androidx.test.platform.app.InstrumentationRegistry
+import dev.gitlive.firebase.Firebase
+import dev.gitlive.firebase.FirebaseOptions
+import dev.gitlive.firebase.apps
+import dev.gitlive.firebase.initialize
+import kotlin.test.BeforeTest
+
+class AndroidInstrumentedFirebaseMessagingTest : FirebaseMessagingTest() {
+
+    private val context = InstrumentationRegistry.getInstrumentation().context
+
+    @BeforeTest
+    fun initializeFirebase() {
+        Firebase.apps(context).firstOrNull() ?: Firebase.initialize(
+            context,
+            FirebaseOptions(
+                applicationId = "1:846484016111:ios:dd1f6688bad7af768c841a",
+                apiKey = "AIzaSyCK87dcMFhzCz_kJVs2cT2AVlqOTLuyWV0",
+                databaseUrl = "https://fir-kotlin-sdk.firebaseio.com",
+                storageBucket = "fir-kotlin-sdk.appspot.com",
+                projectId = "fir-kotlin-sdk",
+                gcmSenderId = "846484016111"
+            )
+        )
+    }
+}

firebase-messaging/src/commonTest/kotlin/dev/gitlive/firebase/messaging/messaging.kt

@@ -0,0 +1,13 @@
+package dev.gitlive.firebase.messaging
+
+import dev.gitlive.firebase.Firebase
+import kotlin.test.Test
+import kotlin.test.assertNotNull
+
+abstract class FirebaseMessagingTest {
+
+    @Test
+    fun initialization() {
+        assertNotNull(Firebase.messaging)
+    }
+}

firebase-messaging/src/iosTest/kotlin/dev/gitlive/firebase/messaging/messaging.kt

@@ -0,0 +1,3 @@
+package dev.gitlive.firebase.messaging
+
+class IOSFirebaseMessagingTest : FirebaseMessagingTest()