Added Unit Test for About Activity Class (commons-app#3978)

Author: madhurgupta10

app/src/test/kotlin/fr/free/nrw/commons/AboutActivityUnitTests.kt

@@ -0,0 +1,110 @@
+package fr.free.nrw.commons
+
+import android.content.Context
+import android.net.Uri
+import android.view.Menu
+import android.view.MenuItem
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.MockitoAnnotations
+import org.robolectric.Robolectric
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+import org.robolectric.Shadows
+import org.robolectric.annotation.Config
+import org.robolectric.fakes.RoboMenu
+import org.robolectric.fakes.RoboMenuItem
+import org.robolectric.shadows.ShadowActivity
+
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+class AboutActivityUnitTests {
+
+    private lateinit var activity:AboutActivity
+
+    @Mock
+    private lateinit var context: Context
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+
+        activity = Robolectric.buildActivity(AboutActivity::class.java).get()
+
+        context = RuntimeEnvironment.application.applicationContext
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun checkActivityNotNull() {
+        Assert.assertNotNull(activity)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchFacebook() {
+        activity.launchFacebook(null)
+        val shadowActivity: ShadowActivity = Shadows.shadowOf(activity)
+        val startedIntent = shadowActivity.nextStartedActivity
+        Assert.assertEquals(startedIntent.action, "android.intent.action.VIEW")
+        Assert.assertEquals(startedIntent.`package`, "com.facebook.katana")
+        Assert.assertEquals(startedIntent.`data`, Uri.parse("fb://page/1921335171459985"))
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchGithub() {
+        activity.launchGithub(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchWebsite() {
+        activity.launchWebsite(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchRatings() {
+        activity.launchRatings(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchCredits() {
+        activity.launchCredits(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchPrivacyPolicy() {
+        activity.launchPrivacyPolicy(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testLaunchFrequentlyAskedQuestions() {
+        activity.launchFrequentlyAskedQuesions(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnCreateOptionsMenu() {
+        val menu: Menu = RoboMenu(context)
+        activity.onCreateOptionsMenu(menu)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnOptionsItemSelected() {
+        val menuItem: MenuItem = RoboMenuItem(R.menu.menu_about)
+        activity.onOptionsItemSelected(menuItem)
+        val shadowActivity = Shadows.shadowOf(activity)
+        shadowActivity.clickMenuItem(R.id.share_app_icon)
+    }
+
+}