/*
* 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 libcore.java.io;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import junit.framework.TestCase;
import tests.support.Support_ASimpleInputStream;
public class OldInputStreamReaderTest extends TestCase {
private final String source = "This is a test message with Unicode character. \u4e2d\u56fd is China's name in Chinese";
private InputStream in;
private InputStreamReader reader;
private InputStreamReader is;
private InputStream fis;
public String fileString = "Test_All_Tests\nTest_java_io_BufferedInputStream\nTest_java_io_BufferedOutputStream\nTest_java_io_ByteArrayInputStream\nTest_java_io_ByteArrayOutputStream\nTest_java_io_DataInputStream\n";
protected void setUp() throws Exception {
super.setUp();
in = new ByteArrayInputStream(source.getBytes("UTF-8"));
reader = new InputStreamReader(in, "UTF-8");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
OutputStreamWriter osw = new OutputStreamWriter(bos);
char[] buf = new char[fileString.length()];
fileString.getChars(0, fileString.length(), buf, 0);
osw.write(buf);
osw.close();
fis = new ByteArrayInputStream(bos.toByteArray());
is = new InputStreamReader(fis);
}
protected void tearDown() throws Exception {
try {
in.close();
is.close();
fis.close();
} catch (IOException e) {
}
super.tearDown();
}
public void testReadcharArrayintint() throws IOException {
try {
reader.read(new char[3], -1, 0);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(new char[3], 0, -1);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(new char[3], 4, 0);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(new char[3], 3, 1);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(new char[3], 1, 3);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(new char[3], 0, 4);
fail("Should throw IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
//expected
}
try {
reader.read(null, 0, 0);
fail("Should throw NullPointerException");
} catch (NullPointerException e) {
//expected
}
assertEquals(0, reader.read(new char[3], 3, 0));
char[] chars = new char[source.length()];
assertEquals(0, reader.read(chars, 0, 0));
assertEquals(0, chars[0]);
assertEquals(3, reader.read(chars, 0, 3));
assertEquals(5, reader.read(chars, 3, 5));
assertEquals(source.length() - 8, reader.read(chars, 8,
chars.length - 8));
assertTrue(Arrays.equals(chars, source.toCharArray()));
assertEquals(-1, reader.read(chars, 0, chars.length));
assertTrue(Arrays.equals(chars, source.toCharArray()));
}
public void testReadcharArrayintint2() throws IOException {
char[] chars = new char[source.length()];
assertEquals(source.length() - 3, reader.read(chars, 0,
chars.length - 3));
assertEquals(3, reader.read(chars, 0, 10));
}
public void testReady() throws IOException {
assertTrue(reader.ready());
reader.read(new char[source.length()]);
assertFalse(reader.ready());
}
public void testInputStreamReaderSuccessiveReads() throws IOException {
byte[] data = new byte[8192 * 2];
Arrays.fill(data, (byte) 116); // 116 = ISO-8859-1 value for 't'
ByteArrayInputStream bis = new ByteArrayInputStream(data);
InputStreamReader isr = new InputStreamReader(bis, "ISO-8859-1");
// One less than the InputStreamReader.BUFFER_SIZE
char[] buf = new char[8191];
int bytesRead = isr.read(buf, 0, buf.length);
if (bytesRead == -1) {
throw new RuntimeException();
}
bytesRead = isr.read(buf, 0, buf.length);
if (bytesRead == -1) {
throw new RuntimeException();
}
}
public void test_ConstructorLjava_io_InputStream() {
// Test for method java.io.InputStreamReader(java.io.InputStream)
assertTrue("Used to test other methods", true);
}
public void test_ConstructorLjava_io_InputStreamLjava_lang_String() {
// Test for method java.io.InputStreamReader(java.io.InputStream,
// java.lang.String)
try {
is = new InputStreamReader(fis, "8859_1");
} catch (UnsupportedEncodingException e) {
fail("Unable to create input stream : " + e.getMessage());
}
try {
is = new InputStreamReader(fis, "Bogus");
} catch (UnsupportedEncodingException e) {
return;
}
fail("Failed to throw Unsupported Encoding exception");
}
public void test_close() {
// Test for method void java.io.InputStreamReader.close()
try {
is.close();
} catch (IOException e) {
fail("Failed to close reader : " + e.getMessage());
}
try {
is.read();
fail("Test 1: IOException expected.");
} catch (IOException e) {
// Exception means read failed due to close
}
is = new InputStreamReader(new Support_ASimpleInputStream(true));
try {
is.read();
fail("Test 2: IOException expected.");
} catch (IOException e) {
// Expected.
}
}
public void testClose() throws IOException {
reader.close();
try {
reader.ready();
fail("Should throw IOException");
} catch (IOException e) {
}
reader.close();
}
public void test_read$CII() {
// Test for method int java.io.InputStreamReader.read(char [], int, int)
try {
char[] rbuf = new char[100];
char[] sbuf = new char[100];
fileString.getChars(0, 100, sbuf, 0);
is.read(rbuf, 0, 100);
for (int i = 0; i < rbuf.length; i++)
assertTrue("returned incorrect chars", rbuf[i] == sbuf[i]);
} catch (IOException e) {
fail("Exception during read test : " + e.getMessage());
}
}
public void test_ready() {
// Test for method boolean java.io.InputStreamReader.ready()
try {
assertTrue("Ready test failed", is.ready());
is.read();
assertTrue("More chars, but not ready", is.ready());
} catch (IOException e) {
fail("Exception during ready test : " + e.getMessage());
}
}
/**
* Test for regression of a bug that dropped characters when
* multibyte encodings spanned buffer boundaries.
*/
public void test_readWhenCharacterSpansBuffer() {
final byte[] suffix = {
(byte) 0x93, (byte) 0xa1, (byte) 0x8c, (byte) 0xb4,
(byte) 0x97, (byte) 0x43, (byte) 0x88, (byte) 0xea,
(byte) 0x98, (byte) 0x59
};
final char[] decodedSuffix = {
(char) 0x85e4, (char) 0x539f, (char) 0x4f51, (char) 0x4e00,
(char) 0x90ce
};
final int prefixLength = 8189;
byte[] bytes = new byte[prefixLength + 10];
Arrays.fill(bytes, (byte) ' ');
System.arraycopy(suffix, 0, bytes, prefixLength, suffix.length);
ByteArrayInputStream is = new ByteArrayInputStream(bytes);
try {
InputStreamReader isr = new InputStreamReader(is, "SHIFT_JIS");
char[] chars = new char[8192];
int at = 0;
for (;;) {
int amt = isr.read(chars);
if (amt <= 0) {
break;
}
for (int i = 0; i < amt; i++) {
char c = chars[i];
if (at < prefixLength) {
if (c != ' ') {
fail("Found bad prefix character " +
(int) c + " at " + at);
}
} else {
char decoded = decodedSuffix[at - prefixLength];
if (c != decoded) {
fail("Found mismatched character " +
(int) c + " at " + at);
}
}
at++;
}
}
} catch (IOException ex) {
throw new RuntimeException("unexpected exception", ex);
}
}
}