| /* |
| * Copyright (C) 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.android.server.backup.utils; |
| |
| import android.platform.test.annotations.Presubmit; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.File; |
| |
| @SmallTest |
| @Presubmit |
| @RunWith(AndroidJUnit4.class) |
| public class RandomAccessFileUtilsTest { |
| private File mTemporaryFile; |
| |
| @Before |
| public void setUp() throws Exception { |
| mTemporaryFile = File.createTempFile("fileutilstest", ".txt"); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| if (mTemporaryFile != null) { |
| mTemporaryFile.delete(); |
| } |
| } |
| |
| /** |
| * Test that if we write true, we read back true. |
| */ |
| @Test |
| public void testWriteTrue_readReturnsTrue() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, true); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, false)).isEqualTo(true); |
| } |
| |
| /** |
| * Test that if we write false, we read back false. |
| */ |
| @Test |
| public void testWriteFalse_readReturnsFalse() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, false); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, true)).isEqualTo(false); |
| } |
| |
| /** |
| * Test that if we write true twice, we read back true. |
| */ |
| @Test |
| public void testWriteTrueTwice_readReturnsTrue() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, true); |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, true); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, false)).isEqualTo(true); |
| } |
| |
| /** |
| * Test that if we write false twice, we read back false. |
| */ |
| @Test |
| public void testWriteFalseTwice_readReturnsFalse() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, false); |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, false); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, true)).isEqualTo(false); |
| } |
| |
| /** |
| * Test that if we write true and then false, we read back false. |
| */ |
| @Test |
| public void testWriteTrueFalse_readReturnsFalse() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, true); |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, false); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, true)).isEqualTo(false); |
| } |
| |
| /** |
| * Test that if we write false and then true, we read back true. |
| */ |
| @Test |
| public void testWriteFalseTrue_readReturnsTrue() { |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, false); |
| RandomAccessFileUtils.writeBoolean(mTemporaryFile, true); |
| |
| assertThat(RandomAccessFileUtils.readBoolean(mTemporaryFile, false)).isEqualTo(true); |
| } |
| } |