rafaeltoledo

apply plugin: 'jacoco'

task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest', 'createDebugCoverageReport']) {

    reports {
        xml.enabled = true
        html.enabled = true
    }

    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']

rafaeltoledo

apply plugin: 'jacoco'

task jacocoTestReport(type: JacocoReport, dependsOn: 'testDebugUnitTest') {

    reports {
        xml.enabled = true
        html.enabled = true
    }

    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']

rafaeltoledo

apply plugin: 'jacoco'

task jacocoTestReport(type: JacocoReport, dependsOn: 'testDebugUnitTest') {

    reports {
        xml.enabled = true
        html.enabled = true
    }

    jacocoClasspath = configurations['androidJacocoAnt']

rafaeltoledo

@RunWith(RobolectricTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 22)
public class MainActivityTest {

    @Test
    public void shouldHideButtonAfterClick() {
        MainActivity activity = Robolectric.setupActivity(MainActivity.class);

        Button button = (Button) activity.findViewById(R.id.hide);
        button.performClick();

rafaeltoledo

android {
    ...
    buildTypes {
        debug {
            testCoverageEnabled true
        }
        ...
    }
}

rafaeltoledo

@RunWith(AndroidJUnit4.class)
@LargeTest
public class MainActivityTest {

    @Rule
    public ActivityTestRule<MainActivity> rule = new ActivityTestRule<>(MainActivity.class);

    @Test
    public void shouldUpdateTextAfterButtonClick() {
        onView(withId(R.id.button)).perform(click());

rafaeltoledo

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

rafaeltoledo

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private TextView text;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        findViewById(R.id.button).setOnClickListener(this);

rafaeltoledo

android {
  lintConfig {
    lintConfig file("${project.rootDir}/config/lint.xml")
  }  
}

rafaeltoledo

<?xml version="1.0" encoding="UTF-8"?>
<lint>
  <issue id="InvalidPackage" severity="ignore" />
</lint>