Github user sagar15795 commented on a diff in the pull request:
https://github.com/apache/incubator-taverna-mobile/pull/89#discussion_r207101956
--- Diff:
app/src/androidTest/java/org/apache/taverna/mobile/login/LoginActivityTest.java
---
@@ -0,0 +1,112 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.taverna.mobile.login;
+
+import android.support.test.espresso.Espresso;
+import android.support.test.filters.LargeTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.apache.taverna.mobile.R;
+import org.apache.taverna.mobile.data.DataManager;
+import org.apache.taverna.mobile.ui.login.LoginActivity;
+import org.apache.taverna.mobile.ui.login.LoginPresenter;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.os.SystemClock.sleep;
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static
android.support.test.espresso.action.ViewActions.closeSoftKeyboard;
+import static android.support.test.espresso.action.ViewActions.typeText;
+import static
android.support.test.espresso.assertion.ViewAssertions.matches;
+import static
android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static org.hamcrest.CoreMatchers.allOf;
+import static org.mockito.Mockito.mock;
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class LoginActivityTest {
+
+ private DataManager dataManager;
+ private LoginPresenter loginPresenter;
--- End diff --
use this to mock the API response as you have done in jUnit testing.
---