| /* 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 tests.api.java.nio.charset; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.CharacterCodingException; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CoderResult; |
| import java.nio.charset.CodingErrorAction; |
| |
| /** |
| * |
| */ |
| public class UTF16CharsetDecoderTest extends CharsetDecoderTest { |
| |
| boolean bigEndian = true; |
| |
| protected void setUp() throws Exception { |
| cs = Charset.forName("utf-16"); |
| bom = "\ufeff"; |
| super.setUp(); |
| } |
| |
| /* |
| * @see CharsetDecoderTest#tearDown() |
| */ |
| protected void tearDown() throws Exception { |
| super.tearDown(); |
| } |
| |
| protected ByteBuffer getByteBuffer() { |
| // FIXME: different here |
| // if don't specified BOM |
| // ICU default is LE |
| // JDK default is BE |
| |
| // maybe start with 0xFEFF, which means big endian |
| // 0xFFFE, which means little endian |
| byte[] b = (bigEndian) ? new byte[] { -1, -2, 32, 0, 98, 0, 117, 0, |
| 102, 0, 102, 0, 101, 0, 114, 0 } : new byte[] { -2, -1, 0, 32, |
| 0, 98, 0, 117, 0, 102, 0, 102, 0, 101, 0, 114 }; |
| return ByteBuffer.wrap(b); |
| } |
| |
| protected ByteBuffer getHeadlessByteBuffer() { |
| ByteBuffer b = getByteBuffer(); |
| b.position(2); |
| byte[] bytes = new byte[b.remaining()]; |
| b.get(bytes); |
| return ByteBuffer.wrap(bytes); |
| } |
| |
| public void testMultiStepDecode() throws CharacterCodingException { |
| if (!cs.name().equals("mock")) { |
| decoder.onMalformedInput(CodingErrorAction.REPORT); |
| decoder.onUnmappableCharacter(CodingErrorAction.REPORT); |
| CharBuffer out = CharBuffer.allocate(10); |
| assertTrue(decoder.decode( |
| ByteBuffer.wrap(new byte[] { -1, -2, 32, 0, 98 }), out, |
| true).isMalformed()); |
| |
| decoder.flush(out); |
| decoder.reset(); |
| out.clear(); |
| assertSame(CoderResult.UNDERFLOW, decoder.decode(ByteBuffer |
| .wrap(new byte[] { -1, -2, 32, 0 }), out, false)); |
| assertTrue(decoder.decode(ByteBuffer.wrap(new byte[] { 98 }), out, |
| true).isMalformed()); |
| |
| decoder.flush(out); |
| decoder.reset(); |
| out.clear(); |
| assertSame(CoderResult.UNDERFLOW, decoder.decode(ByteBuffer |
| .wrap(new byte[] { -1, -2, 32, 0, 98 }), out, false)); |
| assertFalse(decoder.decode(ByteBuffer.wrap(new byte[] {}), out, |
| true).isMalformed()); |
| |
| decoder.flush(out); |
| decoder.reset(); |
| out.clear(); |
| assertFalse(decoder.decode( |
| ByteBuffer.wrap(new byte[] { -1, -2, 32, 0, 98, 0 }), out, |
| true).isError()); |
| |
| decoder.flush(out); |
| decoder.reset(); |
| out.clear(); |
| assertSame(CoderResult.UNDERFLOW, decoder.decode(ByteBuffer |
| .wrap(new byte[] { -1, -2, 32, 0, 98 }), out, false)); |
| assertTrue(decoder.decode(ByteBuffer.wrap(new byte[] { 0 }), out, |
| true).isMalformed()); |
| |
| } |
| } |
| |
| public void testLittleEndianByteBufferCharBuffer() |
| throws CharacterCodingException, UnsupportedEncodingException { |
| bigEndian = false; |
| implTestDecodeByteBufferCharBuffer(getByteBuffer()); |
| bigEndian = true; |
| } |
| |
| public void testLittleEndianReadOnlyByteBufferCharBuffer() |
| throws CharacterCodingException, UnsupportedEncodingException { |
| bigEndian = false; |
| implTestDecodeByteBufferCharBuffer(getByteBuffer().asReadOnlyBuffer()); |
| bigEndian = true; |
| } |
| |
| public void testLittleEndian() throws CharacterCodingException, |
| UnsupportedEncodingException { |
| bigEndian = false; |
| implTestDecodeByteBuffer(); |
| bigEndian = true; |
| } |
| |
| // FIXME: give up this tests |
| // public void testDefaultCharsPerByte() { |
| // // assertEquals(1, decoder.averageCharsPerByte()); |
| // // assertEquals(1, decoder.maxCharsPerByte()); |
| // assertEquals(decoder.averageCharsPerByte(), 0.5, 0.001); |
| // assertEquals(decoder.maxCharsPerByte(), 2, 0.001); |
| // } |
| |
| ByteBuffer getUnmappedByteBuffer() throws UnsupportedEncodingException { |
| return null; |
| } |
| |
| ByteBuffer getMalformedByteBuffer() throws UnsupportedEncodingException { |
| return null; |
| // FIXME: different here, RI can parse 0xd8d8 |
| // ByteBuffer buffer = ByteBuffer.allocate(100); |
| // buffer.put((byte) -1); |
| // buffer.put((byte) -2); |
| // buffer.put((byte) 0xdc); |
| // buffer.put((byte) 0xdc); |
| // buffer.put(unibytes); |
| // buffer.flip(); |
| // return buffer; |
| } |
| |
| ByteBuffer getExceptionByteArray() throws UnsupportedEncodingException { |
| return null; |
| } |
| } |