Add placeholder to UI tests

app/build.gradle

@@ -79,6 +79,7 @@ android {
         multiDexEnabled true
         buildConfigField "String", "GitHash", "\"${getGitHash()}\""
         buildConfigField "String", "BuildDate", "\"${new Date().format('dd/MM/YY HH:mm:ss')}\""
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
     buildTypes {
@@ -140,6 +141,7 @@ android {
         exclude 'META-INF/LICENSE.txt'
         exclude 'META-INF/NOTICE.txt'
     }
+
 }
 
 dependencies {
@@ -208,6 +210,34 @@ dependencies {
     testImplementation 'org.hamcrest:hamcrest-library:2.2'
     testImplementation 'org.mockito:mockito-core:3.3.3'
     testImplementation 'junit:junit:4.13'
+
+    // Android UI testing
+
+    // Core library
+    androidTestImplementation 'androidx.test:core:1.2.0'
+
+    // AndroidJUnitRunner and JUnit Rules
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test:rules:1.2.0'
+
+    // Assertions
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.ext:truth:1.2.0'
+    androidTestImplementation 'com.google.truth:truth:0.42'
+
+    // Espresso dependencies
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-accessibility:3.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-web:3.2.0'
+    androidTestImplementation 'androidx.test.espresso.idling:idling-concurrent:3.2.0'
+
+    // The following Espresso dependency can be either "implementation"
+    // or "androidTestImplementation", depending on whether you want the
+    // dependency to appear on your APK's compile classpath or the test APK
+    // classpath.
+    androidTestImplementation 'androidx.test.espresso:espresso-idling-resource:3.2.0'
 }
 
 repositories {

app/src/androidTest/java/net/bible/android/MainBibleActivityTests.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2020 Martin Denham, Tuomas Airaksinen and the And Bible contributors.
+ *
+ * This file is part of And Bible (http://github.com/AndBible/and-bible).
+ *
+ * And Bible is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * And Bible is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with And Bible.
+ * If not, see http://www.gnu.org/licenses/.
+ *
+ */
+
+package net.bible.android
+
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import org.junit.runner.RunWith
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.LargeTest
+import androidx.test.rule.ActivityTestRule
+import net.bible.android.activity.R
+
+import net.bible.android.view.activity.page.MainBibleActivity
+import org.junit.Rule
+import org.junit.Test
+
+@RunWith(AndroidJUnit4::class)
+@LargeTest
+class MainBibleActivityTests {
+    @get:Rule var activityRule: ActivityTestRule<MainBibleActivity>
+        = ActivityTestRule(MainBibleActivity::class.java)
+
+    @Test
+    fun testMainActivity() {
+        //mainBibleActivity.windowControl.activeWindowPageManager.currentPage.key =
+        onView(withId(R.id.speakButton))
+    }
+}