| /* |
| * 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.tools.ant.util; |
| |
| import java.io.*; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Test for ReaderInputStream |
| */ |
| public class ReaderInputStreamTest extends TestCase { |
| public ReaderInputStreamTest(String s) { |
| super(s); |
| } |
| |
| public void testSimple() throws Exception { |
| compareBytes("abc", "utf-8"); |
| } |
| |
| public void testSimple16() throws Exception { |
| compareBytes("a", "utf-16"); |
| } |
| |
| public void testSimpleAbc16() throws Exception { |
| // THIS WILL FAIL. |
| //compareBytes("abc", "utf-16"); |
| byte[] bytes = new byte[40]; |
| int pos = 0; |
| ReaderInputStream r = new ReaderInputStream( |
| new StringReader("abc"), "utf-16"); |
| for (int i = 0; true; ++i) { |
| int res = r.read(); |
| if (res == -1) { |
| break; |
| } |
| bytes[pos++] = (byte) res; |
| } |
| bytes = "abc".getBytes("utf-16"); |
| // String n = new String(bytes, 0, pos, "utf-16"); |
| String n = new String(bytes, 0, bytes.length, "utf-16"); |
| System.out.println(n); |
| } |
| |
| public void testReadZero() throws Exception { |
| ReaderInputStream r = new ReaderInputStream( |
| new StringReader("abc")); |
| byte[] bytes = new byte[30]; |
| // First read in zero bytes |
| r.read(bytes, 0, 0); |
| // Now read in the string |
| int readin = r.read(bytes, 0, 10); |
| // Make sure that the counts are the same |
| assertEquals("abc".getBytes().length, readin); |
| } |
| |
| public void testPreample() throws Exception { |
| byte[] bytes = "".getBytes("utf-16"); |
| System.out.println("Preample len is " + bytes.length); |
| } |
| |
| private void compareBytes(String s, String encoding) throws Exception { |
| byte[] expected = s.getBytes(encoding); |
| |
| ReaderInputStream r = new ReaderInputStream( |
| new StringReader(s), encoding); |
| for (int i = 0; i < expected.length; ++i) { |
| int expect = expected[i] & 0xFF; |
| int read = r.read(); |
| if (expect != read) { |
| fail("Mismatch in ReaderInputStream at index " + i |
| + " expecting " + expect + " got " + read + " for string " |
| + s + " with encoding " + encoding); |
| } |
| } |
| if (r.read() != -1) { |
| fail("Mismatch in ReaderInputStream - EOF not seen for string " |
| + s + " with encoding " + encoding); |
| } |
| } |
| } |