UI testing fix (#223)

* Fixing the build break

Co-authored-by: PraveenKumar Yeruva <pyeruva@microsoft.com>

FluentUI.Demo/src/test/java/com/microsoft/fluentuidemo/demos/AvatarGroupViewActivityTest.kt

@@ -1,25 +0,0 @@
-package com.microsoft.fluentuidemo.demos
-
-import android.app.Activity
-import android.content.Intent
-import com.microsoft.fluentuidemo.DEMOS
-import com.microsoft.fluentuidemo.DemoActivity
-import org.junit.*
-import org.junit.runner.*
-import org.robolectric.Robolectric
-import org.robolectric.RobolectricTestRunner
-import org.robolectric.RuntimeEnvironment
-
-@RunWith(RobolectricTestRunner::class)
-class AvatarGroupViewActivityTest {
-
-    private var activity: Activity? = null
-
-//    @Before
-//    fun setup() {
-//        val context = RuntimeEnvironment.getApplication().applicationContext
-//        var intent = Intent(context, AvatarViewActivity::class.java)
-//        intent.putExtra(DemoActivity.DEMO_ID, DEMOS[2].id)
-//        activity = Robolectric.buildActivity(AvatarViewActivity::class.java, intent).create().start().visible().get()
-//    }
-}

FluentUI.Demo/src/test/java/com/microsoft/fluentuidemo/util/AvatarUtilsTest.kt

@@ -13,7 +13,7 @@ import org.robolectric.RuntimeEnvironment
 @RunWith(RobolectricTestRunner::class)
 class AvatarUtilsTest {
 
-    private val context = RuntimeEnvironment.application.applicationContext
+    private val context = RuntimeEnvironment.getApplication().applicationContext
     companion object{
         private const val NAME = "Lorem"
         private const val EMAIL = "Lorem@mymail.com"