| // Copyright 2015 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.singlejar; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link ConcatenateStrategy}. */ |
| @RunWith(JUnit4.class) |
| public class ConcatenateStrategyTest { |
| |
| private String merge(String... inputs) throws IOException { |
| return mergeInternal(true, inputs); |
| } |
| |
| private String mergeNoNewLine(String... inputs) throws IOException { |
| return mergeInternal(false, inputs); |
| } |
| |
| private String mergeInternal(boolean appendNewLine, String... inputs) throws IOException { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| ConcatenateStrategy strategy = new ConcatenateStrategy(appendNewLine); |
| for (String input : inputs) { |
| strategy.merge(new ByteArrayInputStream(input.getBytes(UTF_8)), out); |
| } |
| strategy.finish(out); |
| return new String(out.toByteArray(), UTF_8); |
| } |
| |
| @Test |
| public void testSingleInput() throws IOException { |
| assertThat(merge("a")).isEqualTo("a"); |
| assertThat(mergeNoNewLine("a")).isEqualTo("a"); |
| } |
| |
| @Test |
| public void testTwoInputs() throws IOException { |
| assertThat(merge("a\n", "b")).isEqualTo("a\nb"); |
| assertThat(mergeNoNewLine("a\n", "b")).isEqualTo("a\nb"); |
| } |
| |
| @Test |
| public void testAutomaticNewline() throws IOException { |
| assertThat(merge("a", "b")).isEqualTo("a\nb"); |
| assertThat(mergeNoNewLine("a", "b")).isEqualTo("ab"); |
| } |
| |
| @Test |
| public void testAutomaticNewlineAndEmptyFile() throws IOException { |
| assertThat(merge("a", "", "b")).isEqualTo("a\nb"); |
| assertThat(mergeNoNewLine("a", "", "b")).isEqualTo("ab"); |
| } |
| } |