| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| package com.android.car.ui.recyclerview; |
| |
| import static androidx.test.espresso.Espresso.onView; |
| import static androidx.test.espresso.assertion.ViewAssertions.matches; |
| import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed; |
| import static androidx.test.espresso.matcher.ViewMatchers.withId; |
| import static androidx.test.espresso.matcher.ViewMatchers.withText; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import android.view.View; |
| import android.widget.LinearLayout; |
| |
| import androidx.recyclerview.widget.RecyclerView; |
| import androidx.recyclerview.widget.RecyclerView.ViewHolder; |
| import androidx.test.core.app.ActivityScenario; |
| import androidx.test.ext.junit.rules.ActivityScenarioRule; |
| |
| import com.android.car.ui.test.R; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| public class ContentLimitingAdapterTest { |
| |
| @Rule |
| public ActivityScenarioRule<CarUiRecyclerViewTestActivity> mActivityRule = |
| new ActivityScenarioRule<>(CarUiRecyclerViewTestActivity.class); |
| ActivityScenario<CarUiRecyclerViewTestActivity> mScenario; |
| |
| private ContentLimitingAdapter<TestViewHolder> mContentLimitingAdapter; |
| |
| @Before |
| public void setUp() { |
| mContentLimitingAdapter = new TestContentLimitingAdapter(50); |
| mScenario = mActivityRule.getScenario(); |
| } |
| |
| @Test |
| public void setMaxItem_toLowerThanTotalItems() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| |
| // Switch to limited |
| mContentLimitingAdapter.setMaxItems(20); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(21); |
| RecyclerView.ViewHolder secondToLast = getItemAtPosition(19); |
| isTestViewHolderWithText(secondToLast, "Item 19"); |
| |
| last = getItemAtPosition(20); |
| assertThat(last).isInstanceOf(ScrollingLimitedViewHolder.class); |
| |
| // Switch back to unlimited |
| mContentLimitingAdapter.setMaxItems(-1); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| } |
| |
| @Test |
| public void setMaxItem_toOne() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| |
| mContentLimitingAdapter.setMaxItems(1); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(2); |
| RecyclerView.ViewHolder secondToLast = getItemAtPosition(0); |
| isTestViewHolderWithText(secondToLast, "Item 0"); |
| |
| last = getItemAtPosition(1); |
| assertThat(last).isInstanceOf(ScrollingLimitedViewHolder.class); |
| |
| // Switch back to unlimited |
| mContentLimitingAdapter.setMaxItems(-1); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| } |
| |
| @Test |
| public void setMaxItem_toZero() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| |
| mContentLimitingAdapter.setMaxItems(0); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(1); |
| last = getItemAtPosition(0); |
| assertThat(last).isInstanceOf(ScrollingLimitedViewHolder.class); |
| |
| // Switch back to unlimited |
| mContentLimitingAdapter.setMaxItems(-1); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| } |
| |
| @Test |
| public void setMaxItem_toHigherThanTotalItems() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| |
| mContentLimitingAdapter.setMaxItems(70); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder secondToLast = getItemAtPosition(48); |
| isTestViewHolderWithText(secondToLast, "Item 48"); |
| |
| last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| |
| // Switch back to unlimited |
| mContentLimitingAdapter.setMaxItems(-1); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| } |
| |
| @Test |
| public void testViewHolderText_customMessage() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| onView(withId(R.id.list)).check(matches(isDisplayed())); |
| |
| String[] msg = new String[] {null}; |
| mScenario.onActivity(activity -> { |
| CarUiRecyclerView carUiRecyclerView = activity.requireViewById(R.id.list); |
| carUiRecyclerView.setAdapter(mContentLimitingAdapter); |
| carUiRecyclerView.setVisibility(View.VISIBLE); |
| mContentLimitingAdapter.setMaxItems(0); |
| mContentLimitingAdapter.setScrollingLimitedMessageResId( |
| R.string.scrolling_limited_message); |
| msg[0] = activity.getString(R.string.scrolling_limited_message); |
| }); |
| |
| onView(withText(msg[0])).check(matches(isDisplayed())); |
| } |
| |
| @Test |
| public void testViewHolderText_changeCustomMessage() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| onView(withId(R.id.list)).check(matches(isDisplayed())); |
| |
| String[] msg = new String[] {null}; |
| mScenario.onActivity(activity -> { |
| CarUiRecyclerView carUiRecyclerView = activity.requireViewById(R.id.list); |
| carUiRecyclerView.setAdapter(mContentLimitingAdapter); |
| carUiRecyclerView.setVisibility(View.VISIBLE); |
| mContentLimitingAdapter.setMaxItems(0); |
| mContentLimitingAdapter.setScrollingLimitedMessageResId( |
| R.string.car_ui_scrolling_limited_message); |
| mContentLimitingAdapter.setScrollingLimitedMessageResId( |
| R.string.scrolling_limited_message); |
| msg[0] = activity.getString(R.string.scrolling_limited_message); |
| }); |
| |
| onView(withText(msg[0])).check(matches(isDisplayed())); |
| } |
| |
| @Test |
| public void testViewHolderText_defaultMessage() { |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| onView(withId(R.id.list)).check(matches(isDisplayed())); |
| |
| String[] msg = new String[] {null}; |
| mScenario.onActivity(activity -> { |
| CarUiRecyclerView carUiRecyclerView = activity.requireViewById(R.id.list); |
| carUiRecyclerView.setAdapter(mContentLimitingAdapter); |
| carUiRecyclerView.setVisibility(View.VISIBLE); |
| mContentLimitingAdapter.setMaxItems(0); |
| msg[0] = activity.getString(R.string.car_ui_scrolling_limited_message); |
| }); |
| |
| onView(withText(msg[0])).check(matches(isDisplayed())); |
| } |
| |
| @Test |
| public void test_setScrollingLimitedMessageResId_affectsFutureLimiters() { |
| mContentLimitingAdapter.notifyLimitingAnchorChanged(0); |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(50); |
| RecyclerView.ViewHolder last = getItemAtPosition(49); |
| isTestViewHolderWithText(last, "Item 49"); |
| mContentLimitingAdapter.setScrollingLimitedMessageResId(R.string.scrolling_limited_message); |
| |
| mContentLimitingAdapter.setMaxItems(0); |
| |
| assertThat(mContentLimitingAdapter.getItemCount()).isEqualTo(1); |
| last = getItemAtPosition(0); |
| assertThat(last).isInstanceOf(ScrollingLimitedViewHolder.class); |
| |
| mScenario.onActivity(activity -> { |
| CarUiRecyclerView carUiRecyclerView = activity.requireViewById(R.id.list); |
| carUiRecyclerView.setAdapter(mContentLimitingAdapter); |
| carUiRecyclerView.setVisibility(View.VISIBLE); |
| }); |
| |
| onView(withText(R.string.scrolling_limited_message)).check(matches(isDisplayed())); |
| } |
| |
| private RecyclerView.ViewHolder getItemAtPosition(int position) { |
| int viewType = mContentLimitingAdapter.getItemViewType(position); |
| RecyclerView.ViewHolder[] viewHolder = new ViewHolder[] {null}; |
| mScenario.onActivity(activity -> viewHolder[0] = |
| mContentLimitingAdapter.createViewHolder( |
| new LinearLayout(activity.getApplicationContext()), |
| viewType)); |
| mContentLimitingAdapter.bindViewHolder(viewHolder[0], position); |
| return viewHolder[0]; |
| } |
| |
| private void isTestViewHolderWithText(RecyclerView.ViewHolder secondToLast, String s) { |
| assertThat(secondToLast).isInstanceOf(TestViewHolder.class); |
| TestViewHolder testViewHolder = (TestViewHolder) secondToLast; |
| assertThat(testViewHolder.getText()).isEqualTo(s); |
| } |
| } |