Save time & clear your unit tests on Android !
Use annotations to inject Context, Activities, Fragments and Views into your tests
@RunWith(CustomTestRunner.class) public class MainActivityTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RContect Context context; //inject the app context @RActivity MainActivity activity; //generates the tested activity @Mock User user; //mock an user @Test public void testDisplayUser() throws Exception { // Given given(user.getName()).willReturn("florent"); // When activity.display(user); // Then assertThat(activity.textView.getText()).isEqualTo("florent"); } }Simplify Robolectric Integration
public class CustomTestRunner extends AndroidUnitTestRunner { public CustomTestRunner(Class<?> testClass) throws InitializationError { super(testClass, BuildConfig.FLAVOR, BuildConfig.BUILD_TYPE, BuildConfig.APPLICATION_ID, TestMyApplication.class); } }Set initial activity state (by default activity is created())
@RunWith(CustomTestRunner.class) public class MyTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RActivity(state = CREATED / STARTED / RESUMED / PAUSED / STOPPED / DESTROYED) MainActivity activity; @Test public void testMyFunction(){ androidUnitTest.activity().resume(); } }Note that the injected activity is a spy !
verify(activity, times(2)).someMethod(anyInt());Retrieve Context easily
@RunWith(CustomTestRunner.class) public class MyTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RContext Context context; }Note that the injected context is a spy !
verify(context, times(2)).someMethod(anyInt());@RunWith(CustomTestRunner.class) public class MyTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RView CustomView customView; @Test public void testDisplayUser() throws Exception { // Given given(user.getName()).willReturn("florent"); // When mainView.display(user); // Then verify(customView).displayText("florent"); } }Note that the injected view is a spy !
@RunWith(CustomTestRunner.class) public class MyTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RFragment MyFragment myFragment; @Mock User user; @Test public void testDisplayUser() throws Exception { // Given given(user.getName()).willReturn("florent"); // When myFragment.display(user); // Then verify(myFragment).displayText("florent"); } }@RunWith(CustomTestRunner.class) public class MyTest { @Rule public AndroidUnitTest androidUnitTest = AndroidUnitTest.rule(); @RFragment( attached = true / false, tag = "fragmentTag" ) MyFragment myFragment; @Test public void testMyFunction() throws Exception { androidUnitTest.fragment().addToActivity(myFragment) } }Note that the injected fragment is a spy !
testCompile 'com.github.florent37:androidunittest:(last version)' testCompile 'junit:junit:4.12' testCompile 'org.mockito:mockito-core:1.10.19' testCompile 'org.robolectric:robolectric:3.0'Author: Florent Champigny
Copyright 2016 florent37, Inc. Licensed 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.