/
MonthsPagerAdapterTest.java
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/
MonthsPagerAdapterTest.java
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/*
* Copyright 2019 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.google.android.material.datepicker;
import com.google.android.material.R;
import static org.junit.Assert.assertEquals;
import android.content.Context;
import androidx.appcompat.app.AppCompatActivity;
import androidx.test.core.app.ApplicationProvider;
import java.util.Calendar;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.robolectric.Robolectric;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.internal.DoNotInstrument;
@RunWith(RobolectricTestRunner.class)
@DoNotInstrument
public class MonthsPagerAdapterTest {
private Context context;
private Month feb2016;
private Month march2016;
private Month april2016;
@Before
public void setupMonthAdapters() {
ApplicationProvider.getApplicationContext().setTheme(R.style.Theme_MaterialComponents_Light);
context =
Robolectric.buildActivity(AppCompatActivity.class).setup().get().getApplicationContext();
feb2016 = Month.create(2016, Calendar.FEBRUARY);
march2016 = Month.create(2016, Calendar.MARCH);
april2016 = Month.create(2016, Calendar.APRIL);
}
@Test
public void startingPageCalculated() {
MonthsPagerAdapter monthsAdapter =
new MonthsPagerAdapter(
context,
/* dateSelector= */ null,
new CalendarConstraints.Builder()
.setStart(feb2016.timeInMillis)
.setEnd(april2016.timeInMillis)
.setOpenAt(march2016.timeInMillis)
.build(),
/* onDayClickListener= */ null);
assertEquals(3, monthsAdapter.getItemCount());
assertEquals(1, monthsAdapter.getPosition(march2016));
}
@Test
public void singleMonthConstructs() {
MonthsPagerAdapter monthsAdapter =
new MonthsPagerAdapter(
context,
/* dateSelector= */ null,
new CalendarConstraints.Builder()
.setStart(feb2016.timeInMillis)
.setEnd(feb2016.timeInMillis)
.setOpenAt(feb2016.timeInMillis)
.build(),
/* onDayClickListener= */ null);
assertEquals(1, monthsAdapter.getItemCount());
assertEquals(0, monthsAdapter.getPosition(feb2016));
}
@Rule public ExpectedException exceptionRule = ExpectedException.none();
@Test
public void illegalStartMonthFails() {
exceptionRule.expect(IllegalArgumentException.class);
new MonthsPagerAdapter(
context,
/* dateSelector= */ null,
new CalendarConstraints.Builder()
.setStart(feb2016.timeInMillis)
.setEnd(march2016.timeInMillis)
.setOpenAt(april2016.timeInMillis)
.build(),
/* onDayClickListener= */ null);
}
@Test
public void illegalLastMonthFails() {
exceptionRule.expect(IllegalArgumentException.class);
new MonthsPagerAdapter(
context,
/* dateSelector= */ null,
new CalendarConstraints.Builder()
.setStart(march2016.timeInMillis)
.setEnd(feb2016.timeInMillis)
.setOpenAt(march2016.timeInMillis)
.build(),
/* onDayClickListener= */ null);
}
@Test
public void pageTitles() {
MonthsPagerAdapter monthsAdapter =
new MonthsPagerAdapter(
context,
/* dateSelector= */ null,
new CalendarConstraints.Builder()
.setStart(feb2016.timeInMillis)
.setEnd(april2016.timeInMillis)
.setOpenAt(march2016.timeInMillis)
.build(),
/* onDayClickListener= */ null);
assertEquals(
feb2016.getLongName(), monthsAdapter.getPageTitle(/* position= */ 0).toString());
assertEquals(
march2016.getLongName(), monthsAdapter.getPageTitle(/* position= */ 1).toString());
assertEquals(
april2016.getLongName(), monthsAdapter.getPageTitle(/* position= */ 2).toString());
}
}