| /* |
| * Copyright (C) 2018 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.encryption.chunking; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.testng.Assert.assertThrows; |
| |
| import android.platform.test.annotations.Presubmit; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.robolectric.RobolectricTestRunner; |
| |
| /** Tests for {@link ByteRange}. */ |
| @RunWith(RobolectricTestRunner.class) |
| @Presubmit |
| public class ByteRangeTest { |
| @Test |
| public void getLength_includesEnd() throws Exception { |
| ByteRange byteRange = new ByteRange(5, 10); |
| |
| int length = byteRange.getLength(); |
| |
| assertEquals(6, length); |
| } |
| |
| @Test |
| public void constructor_rejectsNegativeStart() { |
| assertThrows(IllegalArgumentException.class, () -> new ByteRange(-1, 10)); |
| } |
| |
| @Test |
| public void constructor_rejectsEndBeforeStart() { |
| assertThrows(IllegalArgumentException.class, () -> new ByteRange(10, 9)); |
| } |
| |
| @Test |
| public void extend_withZeroLength_throwsException() { |
| ByteRange byteRange = new ByteRange(5, 10); |
| |
| assertThrows(IllegalArgumentException.class, () -> byteRange.extend(0)); |
| } |
| } |