AutoCompleteListViewTest.java

package com.mapzen.pelias.widget;

import com.mapzen.pelias.BuildConfig;
import com.mapzen.pelias.R;

import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;

import android.app.Activity;
import android.view.View;
import android.view.animation.Animation;
import android.widget.ArrayAdapter;

import static android.view.animation.AnimationUtils.loadAnimation;
import static org.fest.assertions.api.Assertions.assertThat;
import static org.robolectric.Robolectric.buildActivity;

@RunWith(RobolectricTestRunner.class) @Config(constants = BuildConfig.class, sdk = 21)
public class AutoCompleteListViewTest {
  private static final Activity ACTIVITY = buildActivity(Activity.class).create().get();

  private AutoCompleteListView autoCompleteListView;

  @Before public void setUp() throws Exception {
    autoCompleteListView = new AutoCompleteListView(ACTIVITY);
  }

  @Test public void shouldNotBeNull() throws Exception {
    assertThat(autoCompleteListView).isNotNull();
  }

  @Test @Ignore public void shouldHaveHeaderView() throws Exception {
    assertThat(autoCompleteListView.getHeaderViewsCount()).isEqualTo(1);
  }

  @Test public void setAdapter_shouldHideEmptyViewWhenItemIsAddedToAdapter() throws Exception {
    ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    View empty = new View(ACTIVITY);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setAdapter(adapter);
    autoCompleteListView.setVisibility(View.VISIBLE);
    adapter.add(new Object());
    assertThat(empty.getVisibility()).isEqualTo(View.GONE);
  }

  @Test public void setAdapter_shouldShowEmptyViewWhenItemIsRemovedFromAdapter() throws Exception {
    ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    adapter.add(new Object());
    View empty = new View(ACTIVITY);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setAdapter(adapter);
    autoCompleteListView.setVisibility(View.VISIBLE);
    adapter.clear();
    assertThat(empty.getVisibility()).isEqualTo(View.VISIBLE);
  }

  @Test public void setAdapter_shouldHideEmptyViewWhenItemIsRemovedIfListViewHidden()
      throws Exception {
    ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    adapter.add(new Object());
    View empty = new View(ACTIVITY);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setAdapter(adapter);
    autoCompleteListView.setVisibility(View.GONE);
    adapter.clear();
    assertThat(empty.getVisibility()).isEqualTo(View.GONE);
  }

  @Test public void setVisibility_GONE_shouldHideEmptyView() throws Exception {
    View empty = new View(ACTIVITY);
    empty.setVisibility(View.VISIBLE);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setVisibility(View.GONE);
    assertThat(empty.getVisibility()).isEqualTo(View.GONE);
  }

  @Test public void setVisibility_INVISIBLE_shouldHideEmptyView() throws Exception {
    View empty = new View(ACTIVITY);
    empty.setVisibility(View.VISIBLE);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setVisibility(View.INVISIBLE);
    assertThat(empty.getVisibility()).isEqualTo(View.GONE);
  }

  @Test public void setVisibility_VISIBLE_shouldShowEmptyViewIfAdapterIsEmpty() throws Exception {
    ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    autoCompleteListView.setAdapter(adapter);

    View empty = new View(ACTIVITY);
    empty.setVisibility(View.GONE);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setVisibility(View.VISIBLE);
    assertThat(empty.getVisibility()).isEqualTo(View.VISIBLE);
  }

  @Test public void setVisibility_VISIBILE_shouldHideEmptyViewIfAdapterIsNotEmpty()
      throws Exception {
    ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    adapter.add(new Object());
    autoCompleteListView.setAdapter(adapter);

    View empty = new View(ACTIVITY);
    empty.setVisibility(View.VISIBLE);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setVisibility(View.VISIBLE);
    assertThat(empty.getVisibility()).isEqualTo(View.GONE);
  }

  @Test public void setAnimation_shouldApplyAnimationToEmptyView() throws Exception {
    final Animation slideIn = loadAnimation(ACTIVITY, R.anim.slide_in);
    final ArrayAdapter adapter = new ArrayAdapter(ACTIVITY, 0);
    final View empty = new View(ACTIVITY);

    autoCompleteListView.setAdapter(adapter);
    autoCompleteListView.setEmptyView(empty);
    autoCompleteListView.setAnimation(slideIn);
    assertThat(empty.getAnimation()).isEqualTo(slideIn);
  }
}