| /* |
| * 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.james.mime4j.util; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.nio.charset.Charset; |
| import java.util.Arrays; |
| |
| import org.apache.commons.io.IOUtils; |
| |
| import junit.framework.TestCase; |
| |
| public class QuotedPrintableEncodeTest extends TestCase { |
| |
| private static final Charset US_ASCII = Charset.forName("US-ASCII"); |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| } |
| |
| protected void tearDown() throws Exception { |
| super.tearDown(); |
| } |
| |
| public void testEscapedSoftBreak() throws Exception { |
| byte[] content = new byte[500]; |
| Arrays.fill(content, (byte)0x20); |
| byte[] expected = new byte[1557]; |
| int index = 0; |
| for (int l=0;l<20;l++) { |
| for (int i=0;i<25;i++) { |
| expected[index++] = '='; |
| expected[index++] = '2'; |
| expected[index++] = '0'; |
| } |
| if (l<19) { |
| expected[index++] = '='; |
| expected[index++] = '\r'; |
| expected[index++] = '\n'; |
| } |
| } |
| check(content, expected); |
| } |
| |
| public void testPlainAsciiSoftBreak() throws Exception { |
| byte[] content = new byte[500]; |
| Arrays.fill(content, (byte)0x29); |
| byte[] expected = new byte[518]; |
| Arrays.fill(expected, (byte)0x29); |
| expected[75] = '='; |
| expected[76] = '\r'; |
| expected[77] = '\n'; |
| expected[153] = '='; |
| expected[154] = '\r'; |
| expected[155] = '\n'; |
| expected[231] = '='; |
| expected[232] = '\r'; |
| expected[233] = '\n'; |
| expected[309] = '='; |
| expected[310] = '\r'; |
| expected[311] = '\n'; |
| expected[387] = '='; |
| expected[388] = '\r'; |
| expected[389] = '\n'; |
| expected[465] = '='; |
| expected[466] = '\r'; |
| expected[467] = '\n'; |
| check(content, expected); |
| } |
| |
| public void testPlainASCII() throws Exception { |
| checkRoundtrip("Thisisaverysimplemessage.Thisisaverysimplemessage.Thisisaverysimplemessage." + |
| "Thisisaverysimplemessage.Thisisaverysimplemessage.Thisisaverysimplemessage." + |
| "Thisisaverysimplemessage.Thisisaverysimplemessage.Thisisaverysimplemessage." + |
| "Thisisaverysimplemessage.Thisisaverysimplemessage.Thisisaverysimplemessage."); |
| } |
| |
| public void testEncodeSpace() throws Exception { |
| checkRoundtrip(" "); |
| } |
| |
| public void testLetterEncoding() throws Exception { |
| for (byte b=0;b<Byte.MAX_VALUE;b++) { |
| byte[] content = {b}; |
| checkRoundtrip(content); |
| } |
| } |
| |
| private void checkRoundtrip(String content) throws Exception { |
| checkRoundtrip(content, US_ASCII); |
| } |
| |
| private void checkRoundtrip(String content, Charset charset) throws Exception { |
| checkRoundtrip(charset.encode(content).array()); |
| } |
| |
| private void checkRoundtrip(byte[] content) throws Exception { |
| InputStream in = new ByteArrayInputStream(content); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| CodecUtil.encodeQuotedPrintableBinary(in, out); |
| // read back through decoder |
| in = new QuotedPrintableInputStream(new ByteArrayInputStream(out.toByteArray())); |
| out = new ByteArrayOutputStream(); |
| IOUtils.copy(in, out); |
| assertEquals(content, out.toByteArray()); |
| } |
| |
| private void check(byte[] content, byte[] expected) throws Exception { |
| ByteArrayInputStream in = new ByteArrayInputStream(content); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| CodecUtil.encodeQuotedPrintableBinary(in, out); |
| assertEquals(expected, out.toByteArray()); |
| } |
| |
| private void assertEquals(byte[] expected, byte[] actual) { |
| assertEquals(expected.length, actual.length); |
| for (int i = 0; i < actual.length; i++) { |
| assertEquals("Mismatch@" + i, expected[i], actual[i]); |
| } |
| } |
| } |