| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.io.input; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.jupiter.api.Test; |
| |
| public class WindowsLineEndingInputStreamTest { |
| @Test |
| public void simpleString() throws Exception { |
| assertEquals( "abc\r\n", roundtrip( "abc" ) ); |
| } |
| |
| @Test |
| public void inTheMiddleOfTheLine() throws Exception { |
| assertEquals( "a\r\nbc\r\n", roundtrip( "a\r\nbc" ) ); |
| } |
| |
| @Test |
| public void multipleBlankLines() throws Exception { |
| assertEquals( "a\r\n\r\nbc\r\n", roundtrip( "a\r\n\r\nbc" ) ); |
| } |
| |
| @Test |
| public void twoLinesAtEnd() throws Exception { |
| assertEquals( "a\r\n\r\n", roundtrip( "a\r\n\r\n" ) ); |
| } |
| |
| @Test |
| public void linuxLinefeeds() throws Exception { |
| final String roundtrip = roundtrip( "ab\nc", false ); |
| assertEquals( "ab\r\nc", roundtrip ); |
| } |
| |
| |
| @Test |
| public void malformed() throws Exception { |
| assertEquals( "a\rbc", roundtrip( "a\rbc", false ) ); |
| } |
| |
| @Test |
| public void retainLineFeed() throws Exception { |
| assertEquals( "a\r\n\r\n", roundtrip( "a\r\n\r\n", false ) ); |
| assertEquals( "a", roundtrip( "a", false ) ); |
| } |
| |
| private String roundtrip( final String msg ) throws IOException { |
| return roundtrip( msg, true ); |
| } |
| |
| private String roundtrip( final String msg, final boolean ensure ) throws IOException { |
| final ByteArrayInputStream baos = new ByteArrayInputStream( msg.getBytes(StandardCharsets.UTF_8) ); |
| final WindowsLineEndingInputStream lf = new WindowsLineEndingInputStream( baos, ensure ); |
| final byte[] buf = new byte[100]; |
| final int read = lf.read( buf ); |
| lf.close(); |
| return new String( buf, 0, read, StandardCharsets.UTF_8); |
| } |
| } |