Added Review Activity Tests (#4167)

* Added Review Activity Tests

* Remove Unused Code

app/build.gradle

@@ -92,6 +92,7 @@ dependencies {
     testImplementation "androidx.arch.core:core-testing:2.1.0"
     testImplementation "org.junit.jupiter:junit-jupiter-api:5.3.1"
     testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.3.1"
+    testImplementation 'com.facebook.soloader:soloader:0.9.0'
 
     // Mockito and PowerMock
     androidTestCompile ('org.powermock:powermock-mockito-release-full:1.6.0') {

app/src/test/kotlin/fr/free/nrw/commons/review/ReviewActivityTest.kt

@@ -0,0 +1,104 @@
+package fr.free.nrw.commons.review
+
+import android.content.Context
+import android.view.Menu
+import android.view.MenuItem
+import com.facebook.drawee.backends.pipeline.Fresco
+import com.facebook.soloader.SoLoader
+import fr.free.nrw.commons.TestAppAdapter
+import fr.free.nrw.commons.TestCommonsApplication
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.MockitoAnnotations
+import org.robolectric.Robolectric
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+import org.robolectric.annotation.Config
+import org.robolectric.fakes.RoboMenu
+import org.robolectric.fakes.RoboMenuItem
+import org.wikipedia.AppAdapter
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+class ReviewActivityTest {
+
+    private lateinit var activity: ReviewActivity
+
+    private lateinit var menuItem: MenuItem
+
+    private lateinit var menu: Menu
+
+    private lateinit var context: Context
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+
+        context = RuntimeEnvironment.application.applicationContext
+
+        AppAdapter.set(TestAppAdapter())
+
+        SoLoader.setInTestMode()
+
+        Fresco.initialize(context)
+
+        activity = Robolectric.buildActivity(ReviewActivity::class.java).create().get()
+
+        menuItem = RoboMenuItem(null)
+
+        menu = RoboMenu(context)
+
+
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun checkActivityNotNull() {
+        Assert.assertNotNull(activity)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnSupportNavigateUp() {
+        activity.onSupportNavigateUp()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testSwipeToNext() {
+        activity.swipeToNext()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnDestroy() {
+        activity.onDestroy()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowSkipImageInfo() {
+        activity.showSkipImageInfo()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowReviewImageInfo() {
+        activity.showReviewImageInfo()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnCreateOptionsMenu() {
+        activity.onCreateOptionsMenu(menu)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnOptionsItemSelected() {
+        activity.onOptionsItemSelected(menuItem)
+    }
+
+}