| /* |
| * Copyright (C) 2017 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.example.android.contentprovidersample; |
| |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertThat; |
| |
| import android.arch.persistence.room.Room; |
| import android.support.test.InstrumentationRegistry; |
| import android.support.test.filters.SmallTest; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import com.example.android.contentprovidersample.data.Cheese; |
| import com.example.android.contentprovidersample.data.SampleDatabase; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.IOException; |
| |
| |
| @RunWith(AndroidJUnit4.class) |
| @SmallTest |
| public class CheeseTest { |
| |
| private SampleDatabase mDatabase; |
| |
| @Before |
| public void createDatabase() { |
| mDatabase = Room.inMemoryDatabaseBuilder(InstrumentationRegistry.getTargetContext(), |
| SampleDatabase.class).build(); |
| } |
| |
| @After |
| public void closeDatabase() throws IOException { |
| mDatabase.close(); |
| } |
| |
| @Test |
| public void insertAndCount() { |
| assertThat(mDatabase.cheese().count(), is(0)); |
| Cheese cheese = new Cheese(); |
| cheese.name = "abc"; |
| mDatabase.cheese().insert(cheese); |
| assertThat(mDatabase.cheese().count(), is(1)); |
| } |
| |
| } |