/* 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.harmony.tests.java.nio.charset;
import junit.framework.TestCase;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction;
import java.nio.charset.MalformedInputException;
import java.nio.charset.UnmappableCharacterException;
public class ASCIICharsetEncoderTest extends TestCase {
// charset for ascii
private final Charset cs = Charset.forName("ascii");
private final CharsetEncoder encoder = cs.newEncoder();
private static final int MAXCODEPOINT = 0x7F;
/*
* @see CharsetEncoderTest#setUp()
*/
protected void setUp() throws Exception {
}
/*
* @see CharsetEncoderTest#tearDown()
*/
protected void tearDown() throws Exception {
}
public void testCanEncodeCharSequence() {
// normal case for ascCS
assertTrue(encoder.canEncode("\u0077"));
assertFalse(encoder.canEncode("\uc2a3"));
assertFalse(encoder.canEncode("\ud800\udc00"));
try {
encoder.canEncode(null);
} catch (NullPointerException e) {
}
assertTrue(encoder.canEncode(""));
}
public void testCanEncodeSurrogate() {
assertFalse(encoder.canEncode('\ud800'));
assertFalse(encoder.canEncode("\udc00"));
}
public void testCanEncodechar() throws CharacterCodingException {
assertTrue(encoder.canEncode('\u0077'));
assertFalse(encoder.canEncode('\uc2a3'));
}
public void testSpecificDefaultValue() {
assertEquals(1.0, encoder.averageBytesPerChar(), 0.0);
assertEquals(1.0, encoder.maxBytesPerChar(), 0.0);
}
public void testMultiStepEncode() throws CharacterCodingException {
encoder.onMalformedInput(CodingErrorAction.REPORT);
encoder.onUnmappableCharacter(CodingErrorAction.REPORT);
try {
encoder.encode(CharBuffer.wrap("\ud800\udc00"));
fail("should unmappable");
} catch (UnmappableCharacterException e) {
}
encoder.reset();
ByteBuffer out = ByteBuffer.allocate(10);
assertEquals(CoderResult.UNDERFLOW,
encoder.encode(CharBuffer.wrap("\ud800"), out, true));
assertTrue(encoder.flush(out).isMalformed());
encoder.reset();
out = ByteBuffer.allocate(10);
CharBuffer buffer1 = CharBuffer.wrap("\ud800");
CharBuffer buffer2 = CharBuffer.wrap("\udc00");
assertSame(CoderResult.UNDERFLOW, encoder.encode(buffer1, out, false));
// We consume the entire input buffer because we're in an underflow
// state. We can't make a decision on whether the char in this buffer
// is unmappable or malformed without looking at the next input buffer.
assertEquals(1, buffer1.position());
assertTrue(encoder.encode(buffer2, out, true).isUnmappable());
assertEquals(0, buffer2.position());
}
public void testEncodeMapping() throws CharacterCodingException {
encoder.reset();
for (int i = 0; i <= MAXCODEPOINT; i++) {
char[] chars = Character.toChars(i);
CharBuffer cb = CharBuffer.wrap(chars);
ByteBuffer bb = encoder.encode(cb);
assertEquals(i, bb.get(0));
}
CharBuffer cb = CharBuffer.wrap("\u0080");
try {
encoder.encode(cb);
} catch (UnmappableCharacterException e) {
//expected
}
cb = CharBuffer.wrap("\ud800");
try {
encoder.encode(cb);
} catch (MalformedInputException e) {
//expected
}
ByteBuffer bb = ByteBuffer.allocate(0x10);
cb = CharBuffer.wrap("A");
encoder.reset();
encoder.encode(cb, bb, false);
try {
encoder.encode(cb);
} catch (IllegalStateException e) {
//expected
}
}
public void testInternalState() {
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
//normal encoding process
encoder.reset();
encoder.encode(in, out, false);
in = CharBuffer.wrap("B");
encoder.encode(in, out, true);
encoder.flush(out);
}
//reset could be called at any time
public void testInternalState_Reset() {
CharsetEncoder newEncoder = cs.newEncoder();
//Init - > reset
newEncoder.reset();
//reset - > reset
newEncoder.reset();
//encoding - >reset
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
newEncoder.reset();
}
//encoding end -> reset
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.reset();
}
//flused -> reset
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.flush(out);
newEncoder.reset();
}
}
public void testInternalState_Encoding() {
CharsetEncoder newEncoder = cs.newEncoder();
//Init - > encoding
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
}
//reset - > encoding
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.reset();
newEncoder.encode(in, out, false);
}
//reset - > encoding - > encoding
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
in = CharBuffer.wrap("BC");
newEncoder.encode(in, out, false);
}
//encoding_end - > encoding
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
in = CharBuffer.wrap("BC");
try {
newEncoder.encode(in, out, false);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
//expected
}
}
//flushed - > encoding
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.flush(out);
in = CharBuffer.wrap("BC");
try {
newEncoder.encode(in, out, false);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
//expected
}
}
}
public void testInternalState_Encoding_END() {
CharsetEncoder newEncoder = cs.newEncoder();
//Init - >encoding_end
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
}
//Reset -> encoding_end
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.reset();
newEncoder.encode(in, out, true);
}
//encoding -> encoding_end
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
in = CharBuffer.wrap("BC");
newEncoder.encode(in, out, true);
}
//Reset -> encoding_end
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
in = CharBuffer.wrap("BC");
newEncoder.encode(in, out, true);
}
//Flushed -> encoding_end
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.flush(out);
in = CharBuffer.wrap("BC");
try {
newEncoder.encode(in, out, true);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
//expected
}
}
}
public void testInternalState_Flushed() {
CharsetEncoder newEncoder = cs.newEncoder();
// init -> flushed
{
ByteBuffer out = ByteBuffer.allocate(0x10);
try {
newEncoder.flush(out);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
//expected
}
}
// reset - > flushed
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.reset();
try {
newEncoder.flush(out);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
//expected
}
}
//encoding - > flushed
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
try {
newEncoder.flush(out);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
// expected
}
}
//encoding_end -> flushed
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.flush(out);
}
//flushd - > flushed
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
newEncoder.flush(out);
newEncoder.flush(out);
}
}
public void testInternalState_Encode() throws CharacterCodingException {
CharsetEncoder newEncoder = cs.newEncoder();
//Init - > encode
{
CharBuffer in = CharBuffer.wrap("A");
newEncoder.encode(in);
}
//Reset - > encode
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
newEncoder.encode(in);
}
//Encoding -> encode
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, false);
in = CharBuffer.wrap("BC");
newEncoder.encode(in);
}
//Encoding_end -> encode
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
in = CharBuffer.wrap("BC");
newEncoder.encode(in);
}
//Flushed -> reset
{
newEncoder.reset();
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.encode(in, out, true);
in = CharBuffer.wrap("BC");
newEncoder.flush(out);
out = newEncoder.encode(in);
}
}
public void testInternalState_from_Encode() throws CharacterCodingException {
CharsetEncoder newEncoder = cs.newEncoder();
//Encode -> Reset
{
CharBuffer in = CharBuffer.wrap("A");
newEncoder.encode(in);
newEncoder.reset();
}
// Encode -> encoding
{
CharBuffer in = CharBuffer.wrap("A");
newEncoder.encode(in);
ByteBuffer out = ByteBuffer.allocate(0x10);
try {
newEncoder.encode(in, out, false);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
// expected
}
}
//Encode -> Encoding_end
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = ByteBuffer.allocate(0x10);
newEncoder.reset();
newEncoder.encode(in, out, false);
newEncoder.encode(in, out, true);
}
//Encode -> Flushed
{
CharBuffer in = CharBuffer.wrap("A");
ByteBuffer out = newEncoder.encode(in);
newEncoder.flush(out);
}
//Encode - > encode
{
CharBuffer in = CharBuffer.wrap("A");
newEncoder.encode(in);
in = CharBuffer.wrap("BC");
newEncoder.encode(in);
}
}
}