| /* |
| * 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.jena.atlas.lib; |
| |
| import java.nio.ByteBuffer ; |
| |
| import org.apache.jena.atlas.junit.BaseTest ; |
| import org.apache.jena.atlas.lib.Bytes ; |
| import org.junit.Test ; |
| |
| public class TestBytes extends BaseTest |
| { |
| @Test public void intToBytes1() { |
| byte[] b = Bytes.intToBytes(0xF1020304) ; |
| assertEquals(Integer.BYTES, b.length) ; |
| assertEquals(0xF1, b[0]&0xFF) ; |
| assertEquals(0x02, b[1]) ; |
| assertEquals(0x03, b[2]) ; |
| assertEquals(0x04, b[3]) ; |
| } |
| |
| @Test public void longToBytes1() { |
| byte[] b = Bytes.longToBytes(0xF506070801020304L) ; |
| assertEquals(Long.BYTES, b.length) ; |
| assertEquals(0xF5, b[0]&0xFF) ; |
| assertEquals(0x06, b[1]) ; |
| assertEquals(0x07, b[2]) ; |
| assertEquals(0x08, b[3]) ; |
| assertEquals(0x01, b[4]) ; |
| assertEquals(0x02, b[5]) ; |
| assertEquals(0x03, b[6]) ; |
| assertEquals(0x04, b[7]) ; |
| } |
| |
| @Test public void packInt1() |
| { |
| byte[] b = new byte[4] ; |
| Bytes.setInt(0x01020304,b) ; |
| assertEquals(0x01, b[0]) ; |
| assertEquals(0x02, b[1]) ; |
| assertEquals(0x03, b[2]) ; |
| assertEquals(0x04, b[3]) ; |
| } |
| |
| @Test public void packInt2() |
| { |
| byte[] b = new byte[8] ; |
| Bytes.setInt(0x01020304,b,0) ; |
| Bytes.setInt(0x05060708,b,4) ; |
| assertEquals(0x01, b[0]) ; |
| assertEquals(0x02, b[1]) ; |
| assertEquals(0x03, b[2]) ; |
| assertEquals(0x04, b[3]) ; |
| assertEquals(0x05, b[4]) ; |
| assertEquals(0x06, b[5]) ; |
| assertEquals(0x07, b[6]) ; |
| assertEquals(0x08, b[7]) ; |
| } |
| |
| @Test public void packInt3() |
| { |
| byte[] b = new byte[4] ; |
| Bytes.setInt(0xF1F2F3F4,b) ; |
| int i = Bytes.getInt(b) ; |
| assertEquals(0xF1F2F3F4, i) ; |
| } |
| |
| @Test public void packInt4() |
| { |
| byte[] b = new byte[8] ; |
| Bytes.setInt(0x01020304,b,0) ; |
| Bytes.setInt(0x05060708,b,4) ; |
| |
| int i1 = Bytes.getInt(b,0) ; |
| int i2 = Bytes.getInt(b,4) ; |
| assertEquals(0x01020304, i1) ; |
| assertEquals(0x05060708, i2) ; |
| } |
| |
| @Test public void packLong5() |
| { |
| byte[] b = new byte[8] ; |
| Bytes.setLong(0x0102030405060708L,b) ; |
| assertEquals(0x01, b[0]) ; |
| assertEquals(0x02, b[1]) ; |
| assertEquals(0x03, b[2]) ; |
| assertEquals(0x04, b[3]) ; |
| assertEquals(0x05, b[4]) ; |
| assertEquals(0x06, b[5]) ; |
| assertEquals(0x07, b[6]) ; |
| assertEquals(0x08, b[7]) ; |
| } |
| |
| @Test public void packLong6() |
| { |
| byte[] b = new byte[16] ; |
| Bytes.setLong(0x0102030405060708L,b,0) ; |
| Bytes.setLong(0x1112131415161718L,b,8) ; |
| assertEquals(0x01, b[0]) ; |
| assertEquals(0x02, b[1]) ; |
| assertEquals(0x03, b[2]) ; |
| assertEquals(0x04, b[3]) ; |
| assertEquals(0x05, b[4]) ; |
| assertEquals(0x06, b[5]) ; |
| assertEquals(0x07, b[6]) ; |
| assertEquals(0x08, b[7]) ; |
| |
| assertEquals(0x11, b[0+8]) ; |
| assertEquals(0x12, b[1+8]) ; |
| assertEquals(0x13, b[2+8]) ; |
| assertEquals(0x14, b[3+8]) ; |
| assertEquals(0x15, b[4+8]) ; |
| assertEquals(0x16, b[5+8]) ; |
| assertEquals(0x17, b[6+8]) ; |
| assertEquals(0x18, b[7+8]) ; |
| } |
| |
| @Test public void packLong7() |
| { |
| byte[] b = new byte[8] ; |
| Bytes.setLong(0xF1F2F3F4F5F6F7F8L,b) ; |
| long i = Bytes.getLong(b) ; |
| assertEquals (0xF1F2F3F4F5F6F7F8L,i) ; |
| } |
| |
| @Test public void packLong8() |
| { |
| byte[] b = new byte[16] ; |
| Bytes.setLong(0xF1F2F3F4F5F6F7F8L,b,0) ; |
| Bytes.setLong(0xA1A2A3A4A5A6A7A8L,b,8) ; |
| |
| long i1 = Bytes.getLong(b,0) ; |
| long i2 = Bytes.getLong(b,8) ; |
| assertEquals(0xF1F2F3F4F5F6F7F8L,i1) ; |
| assertEquals(0xA1A2A3A4A5A6A7A8L,i2) ; |
| } |
| |
| @Test public void compare1() { compare(0, new byte[]{}, new byte[]{}) ; } |
| @Test public void compare2() { compare(+1, new byte[]{1}, new byte[]{}) ; } |
| @Test public void compare3() { compare(-1, new byte[]{1}, new byte[]{1,2}) ; } |
| |
| @Test public void compare4() { compare(+1, new byte[]{1,3}, new byte[]{1,2}) ; } |
| @Test public void compare5() { compare(+1, new byte[]{1,3}, new byte[]{1,2,3}) ; } |
| @Test public void compare6() { compare(-1, new byte[]{1,2}, new byte[]{1,2,3}) ; } |
| |
| byte[] bytes = { 1, 2, 3, 4, 5, 6 } ; |
| |
| @Test public void slice1() |
| { |
| byte[] x = Bytes.copyOf(bytes) ; |
| assertArrayEquals(bytes, x) ; |
| } |
| |
| @Test public void slice3() |
| { |
| byte[] x = Bytes.copyOf(bytes,3) ; |
| byte[] y = new byte[]{4,5,6} ; |
| assertArrayEquals(y, x) ; |
| } |
| |
| @Test public void slice2() |
| { |
| byte[] x = Bytes.copyOf(bytes,3,2) ; |
| byte[] y = new byte[]{4,5} ; |
| assertArrayEquals(y, x) ; |
| } |
| |
| private static void compare(int expected, byte[] b1, byte[] b2) |
| { |
| int x = Bytes.compare(b1, b2) ; |
| if ( x > 0 && expected > 0 ) return ; |
| if ( x == 0 && expected == 0 ) return ; |
| if ( x < 0 && expected < 0 ) return ; |
| fail("Does not compare: "+Bytes.asHex(b1)+" :: "+Bytes.asHex(b2)) ; |
| } |
| |
| private static void codec(String str) |
| { |
| ByteBuffer bb = ByteBuffer.allocate(16) ; |
| Bytes.toByteBuffer(str, bb) ; |
| bb.flip() ; |
| String str2 = Bytes.fromByteBuffer(bb) ; |
| assertEquals(str, str2) ; |
| } |
| |
| static private final String asciiBase = "abc" ; |
| static private final String latinBase = "Àéíÿ" ; |
| static private final String latinExtraBase = "ỹfifl" ; // fi-ligature, fl-ligature |
| static private final String greekBase = "αβγ" ; |
| static private final String hewbrewBase = "אבג" ; |
| static private final String arabicBase = "ءآأ"; |
| static private final String symbolsBase = "☺☻♪♫" ; |
| static private final String chineseBase = "孫子兵法" ; // The Art of War |
| static private final String japaneseBase = "日本" ; // Japanese |
| |
| @Test public void codec1() { codec(asciiBase) ; } |
| @Test public void codec2() { codec("") ; } |
| @Test public void codec3() { codec(greekBase) ; } |
| @Test public void codec4() { codec(hewbrewBase) ; } |
| @Test public void codec5() { codec(arabicBase) ; } |
| @Test public void codec6() { codec(symbolsBase) ; } |
| @Test public void codec7() { codec(chineseBase) ; } |
| @Test public void codec8() { codec(japaneseBase) ; } |
| } |