Add Login Activity Test (#4160)

app/src/test/kotlin/fr/free/nrw/commons/login/LoginActivityUnitTests.kt

@@ -0,0 +1,96 @@
+package fr.free.nrw.commons.login
+
+import android.app.ProgressDialog
+import android.content.Context
+import android.view.MenuItem
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.TestCommonsApplication
+import fr.free.nrw.commons.auth.LoginActivity
+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.annotation.Config
+import org.robolectric.fakes.RoboMenuItem
+import java.lang.reflect.Field
+
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+class LoginActivityUnitTests {
+
+    @Mock
+    private lateinit var activity: LoginActivity
+
+    private lateinit var context: Context
+
+    @Mock
+    private lateinit var progressDialog: ProgressDialog
+
+    private lateinit var menuItem: MenuItem
+
+    @Before
+    fun setUp() {
+
+        MockitoAnnotations.initMocks(this)
+
+        activity = Robolectric.buildActivity(LoginActivity::class.java).create().get()
+
+        context = RuntimeEnvironment.application.applicationContext
+
+        val fieldProgressDialog: Field =
+            LoginActivity::class.java.getDeclaredField("progressDialog")
+        fieldProgressDialog.isAccessible = true
+        fieldProgressDialog.set(activity, progressDialog)
+
+        menuItem = RoboMenuItem(null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun checkActivityNotNull() {
+        Assert.assertNotNull(activity)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowMessageAndCancelDialog() {
+        activity.showMessageAndCancelDialog("")
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testStartMainActivity() {
+        activity.startMainActivity()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowMessageAndCancelDialogRes() {
+        activity.showMessageAndCancelDialog(R.color.secondaryDarkColor)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAskUserForTwoFactorAuth() {
+        activity.askUserForTwoFactorAuth()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowSuccessAndDismissDialog() {
+        activity.showSuccessAndDismissDialog()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnOptionsItemSelected() {
+        activity.onOptionsItemSelected(menuItem)
+    }
+
+}