Fix tests

Author: hichamboushaba

fluxc/src/main/java/org/wordpress/android/fluxc/network/UserAgent.kt

@@ -2,16 +2,18 @@ package org.wordpress.android.fluxc.network
 
 import android.content.Context
 import android.webkit.WebSettings
+import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import org.wordpress.android.util.AppLog
 import org.wordpress.android.util.PackageUtils
 
 @Suppress("MemberNameEqualsClassName")
-class UserAgent(
+class UserAgent @JvmOverloads constructor(
     private val appContext: Context?,
-    private val appName: String
+    private val appName: String,
+    bgDispatcher: CoroutineDispatcher = Dispatchers.Default
 ) {
     /**
      * User-Agent string when making HTTP connections, for both API traffic and WebViews.
@@ -24,7 +26,7 @@ class UserAgent(
     var userAgent: String = getAppNameVersion()
         private set
 
-    private val coroutineScope = CoroutineScope(Dispatchers.Default)
+    private val coroutineScope = CoroutineScope(bgDispatcher)
 
     init {
         coroutineScope.launch {

fluxc/src/test/java/org/wordpress/android/fluxc/network/UserAgentTest.kt

@@ -1,6 +1,7 @@
 package org.wordpress.android.fluxc.network
 
 import android.webkit.WebSettings
+import kotlinx.coroutines.Dispatchers
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.Mockito.mockStatic
@@ -22,7 +23,8 @@ class UserAgentTest {
     fun testUserAgent() = withMockedPackageUtils {
         mockStatic(WebSettings::class.java).use {
             whenever(WebSettings.getDefaultUserAgent(context)).thenReturn(USER_AGENT)
-            val result = UserAgent(context, APP_NAME)
+            // Use the Unconfined dispatcher to allow the test to run synchronously
+            val result = UserAgent(context, APP_NAME, bgDispatcher = Dispatchers.Unconfined)
             assertEquals("$USER_AGENT $APP_NAME/$APP_VERSION", result.toString())
         }
     }
@@ -31,7 +33,8 @@ class UserAgentTest {
     fun testDefaultUserAgentFailure() = withMockedPackageUtils {
         mockStatic(WebSettings::class.java).use {
             whenever(WebSettings.getDefaultUserAgent(context)).thenThrow(RuntimeException(""))
-            val result = UserAgent(context, APP_NAME)
+            // Use the Unconfined dispatcher to allow the test to run synchronously
+            val result = UserAgent(context, APP_NAME, bgDispatcher = Dispatchers.Unconfined)
             assertEquals("$APP_NAME/$APP_VERSION", result.toString())
         }
     }