Egorand

def APPCOMPAT_VERSION = "24.0.0"
def ESPRESSO_RUNNER_VERSION = "0.5"

dependencies {
    // dependencies with "compile" scope go here

    androidTestCompile "com.android.support:support-annotations:${APPCOMPAT_VERSION}"
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
    androidTestCompile "com.android.support.test:runner:${ESPRESSO_RUNNER_VERSION}"
    androidTestCompile "com.android.support.test:rules:${ESPRESSO_RUNNER_VERSION}"

Egorand

defaultConfig { 
    // default setup here 

    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 
}

Egorand

@RunWith(AndroidJUnit4.class) 
@LargeTest 
public class TeamsActivityTest { }

Egorand

@Rule public ActivityTestRule<TeamsActivity> activityTestRule = 
        new ActivityTestRule<>(TeamsActivity.class);

Egorand

@Test 
public void teamsListIsSortedAlphabetically() { 
    onView(withId(android.R.id.list)).check(matches(isSortedAlphabetically()));
}

Egorand

private static Matcher<View> isSortedAlphabetically() {  
    return new TypeSafeMatcher<View>() {

        private final List<String> teamNames = new ArrayList<>();

        @Override
        protected boolean matchesSafely(View item) {
            RecyclerView recyclerView = (RecyclerView) item;
            TeamsAdapter teamsAdapter = (TeamsAdapter) recyclerView.getAdapter();
            teamNames.clear();

Egorand

dependencies {  
    // other "compile" dependencies go here
    compile "com.android.support:recyclerview-v7:${APPCOMPAT_VERSION}"

    // "androidTest" dependencies are here
}

Egorand

public class Team {

    public final String name;
    public final @DrawableRes int logoRes;

    public Team(@NonNull String name, @DrawableRes int logoRes) {
        this.name = name;
        this.logoRes = logoRes;
    }

Egorand

public class TeamsAdapter extends RecyclerView.Adapter<TeamsAdapter.ViewHolder> {

    private final LayoutInflater layoutInflater;

    private final List<Team> teams;

    public TeamsAdapter(LayoutInflater layoutInflater) {
        this.layoutInflater = layoutInflater;
        this.teams = new ArrayList<>();
    }

Egorand

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

    RecyclerView teamsRecyclerView = (RecyclerView) findViewById(android.R.id.list);
    teamsRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    TeamsAdapter teamsAdapter = new TeamsAdapter(LayoutInflater.from(this));
    teamsAdapter.setTeams(createTeams());