Try to fix tests, address review comments.

dependencies.gradle

@@ -29,7 +29,7 @@ def jjwt = "0.11.5"
 def vanniktechEmoji = "0.15.0"
 
 // Testing
-def mockk = "1.12.3"
+def mockk = "1.12.3" // We need to use 1.12.3 to have mocking in androidTest until a new version is released: https://github.com/mockk/mockk/issues/819
 def espresso = "3.4.0"
 def androidxTest = "1.4.0"
 def androidxOrchestrator = "1.4.1"

vector/build.gradle

@@ -337,7 +337,6 @@ android {
 }
 
 dependencies {
-    implementation fileTree(dir: "libs", include: ["*.aar", "*.jar"])
     implementation project(':library:opusencoder')
 
     implementation project(":vector-config")

vector/src/androidTest/java/im/vector/app/features/voice/VoiceRecorderLTests.kt

@@ -20,7 +20,6 @@ import android.Manifest
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
 import io.mockk.spyk
-import io.mockk.verify
 import kotlinx.coroutines.Dispatchers
 import org.amshove.kluent.shouldBeNull
 import org.amshove.kluent.shouldExist
@@ -60,14 +59,13 @@ class VoiceRecorderLTests {
     }
 
     @Test
-    fun cancelRecordRemovesFileAfterStopping() = with(recorder) {
+    fun cancelRecordRemovesFile() = with(recorder) {
         startRecord("some_room_id")
         val file = recorder.getVoiceMessageFile()
         file.shouldNotBeNullAndExist()
 
         cancelRecord()
 
-        verify { stopRecord() }
         getVoiceMessageFile().shouldBeNull()
         file!!.shouldNotExist()
     }

vector/src/androidTest/java/im/vector/app/features/voice/VoiceRecorderQTests.kt

@@ -17,10 +17,14 @@
 package im.vector.app.features.voice
 
 import android.Manifest
+import android.os.Build
+import androidx.test.filters.SdkSuppress
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.GrantPermissionRule
 import io.mockk.spyk
 import io.mockk.verify
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.runBlocking
 import org.amshove.kluent.shouldBeNull
 import org.amshove.kluent.shouldExist
 import org.amshove.kluent.shouldNotBeNull
@@ -29,6 +33,7 @@ import org.junit.Rule
 import org.junit.Test
 import java.io.File
 
+@SdkSuppress(minSdkVersion = Build.VERSION_CODES.Q)
 class VoiceRecorderQTests {
 
     @get:Rule
@@ -38,38 +43,50 @@ class VoiceRecorderQTests {
     private val recorder = spyk(VoiceRecorderQ(context))
 
     @Test
-    fun startRecordCreatesOggFile() = with(recorder) {
+    fun startRecordCreatesOggFile() = runBlocking {
+        with(recorder) {
             getVoiceMessageFile().shouldBeNull()
 
             startRecord("some_room_id")
+            waitForRecording()
 
             getVoiceMessageFile().shouldNotBeNullAndExist()
 
             stopRecord()
         }
+    }
 
     @Test
-    fun stopRecordKeepsFile() = with(recorder) {
+    fun stopRecordKeepsFile() = runBlocking {
+        with(recorder) {
             getVoiceMessageFile().shouldBeNull()
 
             startRecord("some_room_id")
+            waitForRecording()
             stopRecord()
 
             getVoiceMessageFile().shouldNotBeNullAndExist()
         }
+    }
 
     @Test
-    fun cancelRecordRemovesFileAfterStopping() = with(recorder) {
+    fun cancelRecordRemovesFileAfterStopping() = runBlocking {
+        with(recorder) {
             startRecord("some_room_id")
             val file = recorder.getVoiceMessageFile()
             file.shouldNotBeNullAndExist()
 
+            waitForRecording()
             cancelRecord()
 
             verify { stopRecord() }
             getVoiceMessageFile().shouldBeNull()
             file!!.shouldNotExist()
         }
+    }
+
+    // Give MediaRecorder some time to actually start recording
+    private suspend fun waitForRecording() = delay(10)
 }
 
 private fun File?.shouldNotBeNullAndExist() {