| /**************************************************************** |
| * 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.io; |
| |
| import org.apache.james.mime4j.io.LineReaderInputStreamAdaptor; |
| import org.apache.james.mime4j.io.MaxLineLimitException; |
| import org.apache.james.mime4j.util.ByteArrayBuffer; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| |
| import junit.framework.TestCase; |
| |
| public class LineReaderInputStreamAdaptorTest extends TestCase { |
| |
| public void testBasicOperations() throws Exception { |
| String text = "ah blahblah"; |
| byte[] b1 = text.getBytes("US-ASCII"); |
| |
| LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
| new ByteArrayInputStream(b1)); |
| |
| assertEquals((byte)'a', instream.read()); |
| assertEquals((byte)'h', instream.read()); |
| assertEquals((byte)' ', instream.read()); |
| |
| byte[] tmp1 = new byte[4]; |
| assertEquals(4, instream.read(tmp1)); |
| assertEquals(4, instream.read(tmp1)); |
| |
| assertEquals(-1, instream.read(tmp1)); |
| assertEquals(-1, instream.read(tmp1)); |
| assertEquals(-1, instream.read()); |
| assertEquals(-1, instream.read()); |
| } |
| |
| public void testBasicReadLine() throws Exception { |
| |
| String[] teststrs = new String[5]; |
| teststrs[0] = "Hello\r\n"; |
| teststrs[1] = "This string should be much longer than the size of the input buffer " + |
| "which is only 16 bytes for this test\r\n"; |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < 15; i++) { |
| sb.append("123456789 "); |
| } |
| sb.append("and stuff like that\r\n"); |
| teststrs[2] = sb.toString(); |
| teststrs[3] = "\r\n"; |
| teststrs[4] = "And goodbye\r\n"; |
| |
| ByteArrayOutputStream outstream = new ByteArrayOutputStream(); |
| |
| for (String teststr : teststrs) { |
| outstream.write(teststr.getBytes("US-ASCII")); |
| } |
| byte[] raw = outstream.toByteArray(); |
| |
| LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
| new ByteArrayInputStream(raw)); |
| |
| ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
| for (String teststr : teststrs) { |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| String s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals(teststr, s); |
| } |
| assertEquals(-1, instream.readLine(linebuf)); |
| assertEquals(-1, instream.readLine(linebuf)); |
| } |
| |
| public void testReadEmptyLine() throws Exception { |
| |
| String teststr = "\n\n\r\n\r\r\n\n\n\n\n\n"; |
| byte[] raw = teststr.getBytes("US-ASCII"); |
| |
| LineReaderInputStreamAdaptor instream = new LineReaderInputStreamAdaptor( |
| new ByteArrayInputStream(raw)); |
| |
| ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| String s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\r\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\r\r\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| linebuf.clear(); |
| instream.readLine(linebuf); |
| s = new String(linebuf.toByteArray(), "US-ASCII"); |
| assertEquals("\n", s); |
| |
| assertEquals(-1, instream.readLine(linebuf)); |
| assertEquals(-1, instream.readLine(linebuf)); |
| } |
| |
| public void testReadEmptyLineMaxLimit() throws Exception { |
| |
| String teststr = "1234567890\r\n"; |
| byte[] raw = teststr.getBytes("US-ASCII"); |
| |
| LineReaderInputStreamAdaptor instream1 = new LineReaderInputStreamAdaptor( |
| new ByteArrayInputStream(raw), 13); |
| ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
| linebuf.clear(); |
| instream1.readLine(linebuf); |
| |
| LineReaderInputStreamAdaptor instream2 = new LineReaderInputStreamAdaptor( |
| new ByteArrayInputStream(raw), 12); |
| linebuf.clear(); |
| try { |
| instream2.readLine(linebuf); |
| fail("MaxLineLimitException should have been thrown"); |
| } catch (MaxLineLimitException ex) { |
| } |
| } |
| |
| } |