🧪 [Testing] Add unit test for BroadcastService

Adds a unit test file for `BroadcastService` testing the flow emissions of intents.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: dogi

app/src/test/java/org/ole/planet/myplanet/services/BroadcastServiceTest.kt

@@ -0,0 +1,54 @@
+package org.ole.planet.myplanet.services
+
+import android.content.Intent
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.runTest
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Before
+import org.junit.Test
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class BroadcastServiceTest {
+
+    private lateinit var broadcastService: BroadcastService
+
+    @Before
+    fun setUp() {
+        broadcastService = BroadcastService()
+    }
+
+    @Test
+    fun `sendBroadcast emits intent`() = runTest {
+        val testIntent = Intent("TEST_ACTION")
+        var receivedIntent: Intent? = null
+
+        val job = launch(UnconfinedTestDispatcher(testScheduler)) {
+            receivedIntent = broadcastService.events.first()
+        }
+
+        broadcastService.sendBroadcast(testIntent)
+
+        job.join()
+        assertEquals(testIntent, receivedIntent)
+    }
+
+    @Test
+    fun `trySendBroadcast emits intent and returns true`() = runTest {
+        val testIntent = Intent("TEST_ACTION")
+        var receivedIntent: Intent? = null
+
+        val job = launch(UnconfinedTestDispatcher(testScheduler)) {
+            receivedIntent = broadcastService.events.first()
+        }
+
+        val result = broadcastService.trySendBroadcast(testIntent)
+
+        job.join()
+        assertTrue(result)
+        assertEquals(testIntent, receivedIntent)
+    }
+}