| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // 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.devtools.build.lib.bazel.rules.ninja; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.devtools.build.lib.bazel.rules.ninja.file.ByteBufferFragment; |
| import java.nio.ByteBuffer; |
| import java.nio.charset.StandardCharsets; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link com.google.devtools.build.lib.bazel.rules.ninja.file.ByteBufferFragment} */ |
| @RunWith(JUnit4.class) |
| public class ByteBufferFragmentTest { |
| @Test |
| public void testMethods() { |
| final byte[] bytes = "0123456789".getBytes(StandardCharsets.ISO_8859_1); |
| ByteBufferFragment fragment = new ByteBufferFragment(ByteBuffer.wrap(bytes), 1, 9); |
| assertThat(fragment.length()).isEqualTo(8); |
| assertThat(fragment.toString()).isEqualTo("12345678"); |
| assertThat(fragment.subFragment(2, 4).toString()).isEqualTo("34"); |
| assertThat(fragment.subFragment(0, 8).toString()).isEqualTo("12345678"); |
| } |
| |
| @Test |
| public void testMerge() { |
| final byte[] bytes = "0123456789".getBytes(StandardCharsets.ISO_8859_1); |
| ByteBufferFragment first = new ByteBufferFragment(ByteBuffer.wrap(bytes), 1, 9); |
| final byte[] abcBytes = "abcdefg".getBytes(StandardCharsets.ISO_8859_1); |
| ByteBufferFragment second = new ByteBufferFragment(ByteBuffer.wrap(abcBytes), 1, 4); |
| |
| assertThat(ByteBufferFragment.merge(ImmutableList.of(first))).isSameInstanceAs(first); |
| ByteBufferFragment merged = ByteBufferFragment.merge(ImmutableList.of(first, second)); |
| assertThat(merged.length()).isEqualTo(11); |
| assertThat(merged.toString()).isEqualTo("12345678bcd"); |
| } |
| } |