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8251989: Hex formatting and parsing utility

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Reviewed-by: tvaleev, chegar, naoto, darcy
This commit is contained in:
Roger Riggs 2020-12-16 20:29:49 +00:00
parent efd61c6f53
commit aa9c136d67
14 changed files with 1921 additions and 167 deletions
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8
src/java.base/share/classes/java/lang/Integer.java
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@ -264,10 +264,18 @@ public final class Integer extends Number
* <blockquote> * <blockquote>
* {@code Integer.toHexString(n).toUpperCase()} * {@code Integer.toHexString(n).toUpperCase()}
* </blockquote> * </blockquote>
* <p>
* @apiNote
* The {@link java.util.HexFormat} class provides formatting and parsing
* of byte arrays and primitives to return a string or adding to an {@link Appendable}.
* {@code HexFormat} formats and parses uppercase or lowercase hexadecimal characters,
* with leading zeros and for byte arrays includes for each byte
* a delimiter, prefix, and suffix.
* *
* @param i an integer to be converted to a string. * @param i an integer to be converted to a string.
* @return the string representation of the unsigned integer value * @return the string representation of the unsigned integer value
* represented by the argument in hexadecimal (base&nbsp;16). * represented by the argument in hexadecimal (base&nbsp;16).
* @see java.util.HexFormat
* @see #parseUnsignedInt(String, int) * @see #parseUnsignedInt(String, int)
* @see #toUnsignedString(int, int) * @see #toUnsignedString(int, int)
* @since 1.0.2 * @since 1.0.2

8
src/java.base/share/classes/java/lang/Long.java
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@ -299,11 +299,19 @@ public final class Long extends Number
* <blockquote> * <blockquote>
* {@code Long.toHexString(n).toUpperCase()} * {@code Long.toHexString(n).toUpperCase()}
* </blockquote> * </blockquote>
* <p>
* @apiNote
* The {@link java.util.HexFormat} class provides formatting and parsing
* of byte arrays and primitives to return a string or adding to an {@link Appendable}.
* {@code HexFormat} formats and parses uppercase or lowercase hexadecimal characters,
* with leading zeros and for byte arrays includes for each byte
* a delimiter, prefix, and suffix.
* *
* @param i a {@code long} to be converted to a string. * @param i a {@code long} to be converted to a string.
* @return the string representation of the unsigned {@code long} * @return the string representation of the unsigned {@code long}
* value represented by the argument in hexadecimal * value represented by the argument in hexadecimal
* (base&nbsp;16). * (base&nbsp;16).
* @see java.util.HexFormat
* @see #parseUnsignedLong(String, int) * @see #parseUnsignedLong(String, int)
* @see #toUnsignedString(long, int) * @see #toUnsignedString(long, int)
* @since 1.0.2 * @since 1.0.2

15
src/java.base/share/classes/java/lang/module/Resolver.java
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@ -35,6 +35,7 @@ import java.util.Collection;
import java.util.Deque; import java.util.Deque;
import java.util.HashMap; import java.util.HashMap;
import java.util.HashSet; import java.util.HashSet;
import java.util.HexFormat;
import java.util.LinkedHashSet; import java.util.LinkedHashSet;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
@ -475,9 +476,10 @@ final class Resolver {
if (actualHash == null) if (actualHash == null)
findFail("Unable to compute the hash of module %s", dn); findFail("Unable to compute the hash of module %s", dn);
if (!Arrays.equals(recordedHash, actualHash)) { if (!Arrays.equals(recordedHash, actualHash)) {
HexFormat hex = HexFormat.of();
findFail("Hash of %s (%s) differs to expected hash (%s)" + findFail("Hash of %s (%s) differs to expected hash (%s)" +
" recorded in %s", dn, toHexString(actualHash), " recorded in %s", dn, hex.formatHex(actualHash),
toHexString(recordedHash), descriptor.name()); hex.formatHex(recordedHash), descriptor.name());
} }
} }
} }
@ -485,15 +487,6 @@ final class Resolver {
} }
} }
private static String toHexString(byte[] ba) {
StringBuilder sb = new StringBuilder(ba.length * 2);
for (byte b: ba) {
sb.append(String.format("%02x", b & 0xff));
}
return sb.toString();
}
/** /**
* Computes the readability graph for the modules in the given Configuration. * Computes the readability graph for the modules in the given Configuration.
* *

1108
src/java.base/share/classes/java/util/HexFormat.java Normal file
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File diff suppressed because it is too large Load Diff

34
src/java.base/share/classes/java/util/Properties.java
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@ -701,7 +701,7 @@ public class Properties extends Hashtable<Object,Object> {
bufLen = Integer.MAX_VALUE; bufLen = Integer.MAX_VALUE;
} }
StringBuilder outBuffer = new StringBuilder(bufLen); StringBuilder outBuffer = new StringBuilder(bufLen);
HexFormat hex = HexFormat.of().withUpperCase();
for(int x=0; x<len; x++) { for(int x=0; x<len; x++) {
char aChar = theString.charAt(x); char aChar = theString.charAt(x);
// Handle common case first, selecting largest block that // Handle common case first, selecting largest block that
@ -736,12 +736,8 @@ public class Properties extends Hashtable<Object,Object> {
break; break;
default: default:
if (((aChar < 0x0020) || (aChar > 0x007e)) & escapeUnicode ) { if (((aChar < 0x0020) || (aChar > 0x007e)) & escapeUnicode ) {
outBuffer.append('\\'); outBuffer.append("\\u");
outBuffer.append('u'); outBuffer.append(hex.toHexDigits(aChar));
outBuffer.append(toHex((aChar >> 12) & 0xF));
outBuffer.append(toHex((aChar >> 8) & 0xF));
outBuffer.append(toHex((aChar >> 4) & 0xF));
outBuffer.append(toHex( aChar & 0xF));
} else { } else {
outBuffer.append(aChar); outBuffer.append(aChar);
} }
@ -752,24 +748,19 @@ public class Properties extends Hashtable<Object,Object> {
private static void writeComments(BufferedWriter bw, String comments) private static void writeComments(BufferedWriter bw, String comments)
throws IOException { throws IOException {
HexFormat hex = HexFormat.of().withUpperCase();
bw.write("#"); bw.write("#");
int len = comments.length(); int len = comments.length();
int current = 0; int current = 0;
int last = 0; int last = 0;
char[] uu = new char[6];
uu[0] = '\\';
uu[1] = 'u';
while (current < len) { while (current < len) {
char c = comments.charAt(current); char c = comments.charAt(current);
if (c > '\u00ff' || c == '\n' || c == '\r') { if (c > '\u00ff' || c == '\n' || c == '\r') {
if (last != current) if (last != current)
bw.write(comments.substring(last, current)); bw.write(comments.substring(last, current));
if (c > '\u00ff') { if (c > '\u00ff') {
uu[2] = toHex((c >> 12) & 0xf); bw.write("\\u");
uu[3] = toHex((c >> 8) & 0xf); bw.write(hex.toHexDigits(c));
uu[4] = toHex((c >> 4) & 0xf);
uu[5] = toHex( c & 0xf);
bw.write(new String(uu));
} else { } else {
bw.newLine(); bw.newLine();
if (c == '\r' && if (c == '\r' &&
@ -1271,19 +1262,6 @@ public class Properties extends Hashtable<Object,Object> {
} }
} }
/**
* Convert a nibble to a hex character
* @param nibble the nibble to convert.
*/
private static char toHex(int nibble) {
return hexDigit[(nibble & 0xF)];
}
/** A table of hex digits */
private static final char[] hexDigit = {
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
};
// //
// Hashtable methods overridden and delegated to a ConcurrentHashMap instance // Hashtable methods overridden and delegated to a ConcurrentHashMap instance

23
src/java.base/share/classes/javax/net/ssl/SNIServerName.java
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -26,6 +26,7 @@
package javax.net.ssl; package javax.net.ssl;
import java.util.Arrays; import java.util.Arrays;
import java.util.HexFormat;
/** /**
* Instances of this class represent a server name in a Server Name * Instances of this class represent a server name in a Server Name
@ -52,9 +53,6 @@ public abstract class SNIServerName {
// the encoded value of the server name // the encoded value of the server name
private final byte[] encoded; private final byte[] encoded;
// the hex digitals
private static final char[] HEXES = "0123456789ABCDEF".toCharArray();
/** /**
* Creates an {@code SNIServerName} using the specified name type and * Creates an {@code SNIServerName} using the specified name type and
* encoded value. * encoded value.
@ -192,22 +190,7 @@ public abstract class SNIServerName {
if (bytes.length == 0) { if (bytes.length == 0) {
return "(empty)"; return "(empty)";
} }
return HexFormat.ofDelimiter(":").withUpperCase().formatHex(bytes);
StringBuilder sb = new StringBuilder(bytes.length * 3 - 1);
boolean isInitial = true;
for (byte b : bytes) {
if (isInitial) {
isInitial = false;
} else {
sb.append(':');
}
int k = b & 0xFF;
sb.append(HEXES[k >>> 4]);
sb.append(HEXES[k & 0xF]);
}
return sb.toString();
} }
} }

11
src/java.base/share/classes/sun/net/www/ParseUtil.java
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@ -37,6 +37,7 @@ import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder; import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult; import java.nio.charset.CoderResult;
import java.nio.charset.CodingErrorAction; import java.nio.charset.CodingErrorAction;
import java.util.HexFormat;
import sun.nio.cs.UTF_8; import sun.nio.cs.UTF_8;
@ -47,6 +48,8 @@ import sun.nio.cs.UTF_8;
public final class ParseUtil { public final class ParseUtil {
private static final HexFormat HEX_UPPERCASE = HexFormat.of().withUpperCase();
private ParseUtil() {} private ParseUtil() {}
/** /**
@ -515,15 +518,9 @@ public final class ParseUtil {
} }
} }
private static final char[] hexDigits = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
private static void appendEscape(StringBuilder sb, byte b) { private static void appendEscape(StringBuilder sb, byte b) {
sb.append('%'); sb.append('%');
sb.append(hexDigits[(b >> 4) & 0x0f]); HEX_UPPERCASE.toHexDigits(sb, b);
sb.append(hexDigits[(b >> 0) & 0x0f]);
} }
// Tell whether the given character is permitted by the given mask pair // Tell whether the given character is permitted by the given mask pair

10
src/java.base/unix/classes/sun/nio/fs/UnixUriUtils.java
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@ -30,6 +30,7 @@ import java.io.File;
import java.net.URI; import java.net.URI;
import java.net.URISyntaxException; import java.net.URISyntaxException;
import java.util.Arrays; import java.util.Arrays;
import java.util.HexFormat;
/** /**
* Unix specific Path <--> URI conversion * Unix specific Path <--> URI conversion
@ -102,14 +103,14 @@ class UnixUriUtils {
byte[] path = up.toAbsolutePath().asByteArray(); byte[] path = up.toAbsolutePath().asByteArray();
StringBuilder sb = new StringBuilder("file:///"); StringBuilder sb = new StringBuilder("file:///");
assert path[0] == '/'; assert path[0] == '/';
HexFormat hex = HexFormat.of().withUpperCase();
for (int i=1; i<path.length; i++) { for (int i=1; i<path.length; i++) {
char c = (char)(path[i] & 0xff); char c = (char)(path[i] & 0xff);
if (match(c, L_PATH, H_PATH)) { if (match(c, L_PATH, H_PATH)) {
sb.append(c); sb.append(c);
} else { } else {
sb.append('%'); sb.append('%');
sb.append(hexDigits[(c >> 4) & 0x0f]); hex.toHexDigits(sb, (byte)c);
sb.append(hexDigits[(c) & 0x0f]);
} }
} }
@ -242,9 +243,4 @@ class UnixUriUtils {
// All valid path characters // All valid path characters
private static final long L_PATH = L_PCHAR | lowMask(";/"); private static final long L_PATH = L_PCHAR | lowMask(";/");
private static final long H_PATH = H_PCHAR | highMask(";/"); private static final long H_PATH = H_PCHAR | highMask(";/");
private static final char[] hexDigits = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
} }

22
src/java.naming/share/classes/com/sun/jndi/ldap/Filter.java
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -189,24 +189,6 @@ final class Filter {
} }
/**
* convert character 'c' that represents a hexadecimal digit to an integer.
* if 'c' is not a hexadecimal digit [0-9A-Fa-f], -1 is returned.
* otherwise the converted value is returned.
*/
private static int hexchar2int( byte c ) {
if ( c >= '0' && c <= '9' ) {
return( c - '0' );
}
if ( c >= 'A' && c <= 'F' ) {
return( c - 'A' + 10 );
}
if ( c >= 'a' && c <= 'f' ) {
return( c - 'a' + 10 );
}
return( -1 );
}
// called by the LdapClient.compare method // called by the LdapClient.compare method
static byte[] unescapeFilterValue(byte[] orig, int start, int end) static byte[] unescapeFilterValue(byte[] orig, int start, int end)
throws NamingException { throws NamingException {
@ -225,7 +207,7 @@ final class Filter {
ch = orig[i]; ch = orig[i];
if (escape) { if (escape) {
// Try LDAP V3 escape (\xx) // Try LDAP V3 escape (\xx)
if ((ival = hexchar2int(ch)) < 0) { if ((ival = Character.digit(ch, 16)) < 0) {
/** /**
* If there is no hex char following a '\' when * If there is no hex char following a '\' when

31
src/java.naming/share/classes/com/sun/jndi/toolkit/dir/SearchFilter.java
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -27,6 +27,7 @@ package com.sun.jndi.toolkit.dir;
import javax.naming.*; import javax.naming.*;
import javax.naming.directory.*; import javax.naming.directory.*;
import java.util.Enumeration; import java.util.Enumeration;
import java.util.HexFormat;
import java.util.StringTokenizer; import java.util.StringTokenizer;
import java.util.Vector; import java.util.Vector;
import java.util.Locale; import java.util.Locale;
@ -466,26 +467,6 @@ public class SearchFilter implements AttrFilter {
return answer; return answer;
} }
// Writes the hex representation of a byte to a StringBuffer.
private static void hexDigit(StringBuffer buf, byte x) {
char c;
c = (char) ((x >> 4) & 0xf);
if (c > 9)
c = (char) ((c-10) + 'A');
else
c = (char)(c + '0');
buf.append(c);
c = (char) (x & 0xf);
if (c > 9)
c = (char)((c-10) + 'A');
else
c = (char)(c + '0');
buf.append(c);
}
/** /**
* Returns the string representation of an object (such as an attr value). * Returns the string representation of an object (such as an attr value).
* If obj is a byte array, encode each item as \xx, where xx is hex encoding * If obj is a byte array, encode each item as \xx, where xx is hex encoding
@ -506,13 +487,9 @@ public class SearchFilter implements AttrFilter {
if (obj instanceof byte[]) { if (obj instanceof byte[]) {
// binary data must be encoded as \hh where hh is a hex char // binary data must be encoded as \hh where hh is a hex char
HexFormat hex = HexFormat.of().withUpperCase().withPrefix("\\");
byte[] bytes = (byte[])obj; byte[] bytes = (byte[])obj;
StringBuffer b1 = new StringBuffer(bytes.length*3); return hex.formatHex(bytes);
for (int i = 0; i < bytes.length; i++) {
b1.append('\\');
hexDigit(b1, bytes[i]);
}
return b1.toString();
} }
if (!(obj instanceof String)) { if (!(obj instanceof String)) {
str = obj.toString(); str = obj.toString();

23
src/java.net.http/share/classes/jdk/internal/net/http/common/Utils.java
View File

@ -59,6 +59,7 @@ import java.text.Normalizer;
import java.util.Arrays; import java.util.Arrays;
import java.util.Collection; import java.util.Collection;
import java.util.Collections; import java.util.Collections;
import java.util.HexFormat;
import java.util.List; import java.util.List;
import java.util.Set; import java.util.Set;
import java.util.TreeSet; import java.util.TreeSet;
@ -1085,17 +1086,6 @@ public final class Utils {
// -- toAsciiString-like support to encode path and query URI segments // -- toAsciiString-like support to encode path and query URI segments
private static final char[] hexDigits = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
private static void appendEscape(StringBuilder sb, byte b) {
sb.append('%');
sb.append(hexDigits[(b >> 4) & 0x0f]);
sb.append(hexDigits[(b >> 0) & 0x0f]);
}
// Encodes all characters >= \u0080 into escaped, normalized UTF-8 octets, // Encodes all characters >= \u0080 into escaped, normalized UTF-8 octets,
// assuming that s is otherwise legal // assuming that s is otherwise legal
// //
@ -1123,13 +1113,16 @@ public final class Utils {
assert false : x; assert false : x;
} }
HexFormat format = HexFormat.of().withUpperCase();
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
while (bb.hasRemaining()) { while (bb.hasRemaining()) {
int b = bb.get() & 0xff; int b = bb.get() & 0xff;
if (b >= 0x80) if (b >= 0x80) {
appendEscape(sb, (byte)b); sb.append('%');
else format.toHexDigits(sb, (byte)b);
sb.append((char)b); } else {
sb.append((char) b);
}
} }
return sb.toString(); return sb.toString();
} }

12
test/jdk/java/lang/StringBuffer/Supplementary.java
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -28,6 +28,8 @@
* @summary Unit tests for supplementary character support (JSR-204) * @summary Unit tests for supplementary character support (JSR-204)
*/ */
import java.util.HexFormat;
public class Supplementary { public class Supplementary {
public static void main(String[] args) { public static void main(String[] args) {
@ -401,15 +403,13 @@ public class Supplementary {
} }
private static String toHexString(String s) { private static String toHexString(String s) {
StringBuffer sb = new StringBuffer(); HexFormat format = HexFormat.of();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) { for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i); char c = s.charAt(i);
sb.append(" 0x"); sb.append(" 0x");
if (c < 0x10) sb.append('0'); sb.append(format.toHexDigits(c));
if (c < 0x100) sb.append('0');
if (c < 0x1000) sb.append('0');
sb.append(Integer.toHexString(c));
} }
sb.append(' '); sb.append(' ');
return sb.toString(); return sb.toString();

756
test/jdk/java/util/HexFormat/HexFormatTest.java Normal file
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@ -0,0 +1,756 @@
/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.CharBuffer;
import java.util.Arrays;
import java.util.HexFormat;
import java.util.Locale;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertSame;
import static org.testng.Assert.assertThrows;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.expectThrows;
/*
* @test
* @summary Check HexFormat formatting and parsing
* @run testng/othervm -Xmx4G HexFormatTest
*/
@Test
public class HexFormatTest {
static final Class<NullPointerException> NPE = NullPointerException.class;
@DataProvider(name = "HexFormattersParsers")
Object[][] hexFormattersParsers() {
return new Object[][]{
{"", "", "", true,
HexFormat.of().withUpperCase()},
{", ", "#", "L", false,
HexFormat.ofDelimiter(", ").withPrefix("#").withSuffix("L")},
{"", "", "", false,
HexFormat.of().withPrefix("").withSuffix("")},
{".", "", "", false,
HexFormat.ofDelimiter(".").withPrefix("").withSuffix("")},
{", ", "0x", "", true,
HexFormat.ofDelimiter(", ").withUpperCase().withPrefix("0x")},
{"\u0202", "\u0203", "\u0204", false,
HexFormat.ofDelimiter("\u0202").withPrefix("\u0203").withSuffix("\u0204")},
{"\u0202", "", "", false,
HexFormat.ofDelimiter("\u0202")},
};
}
@DataProvider(name = "HexStringsThrowing")
Object[][] HexStringsThrowing() {
return new Object[][]{
{"0", ":", "", ""}, // wrong string length
{"01:", ":", "", ""}, // wrong string length
{"01:0", ":", "", ""}, // wrong string length
{"0", ",", "", ""}, // wrong length and separator
{"01:", ",", "", ""}, // wrong length and separator
{"01:0", ",", "", ""}, // wrong length and separator
{"01:00", ",", "", ""}, // wrong separator
{"00]", ",", "[", "]"}, // missing prefix
{"[00", ",", "[", "]"}, // missing suffix
{"]", ",", "[", "]"}, // missing prefix
{"[", ",", "[", "]"}, // missing suffix
{"00", ",", "abc", ""}, // Prefix longer than string
{"01", ",", "", "def"}, // Suffix longer than string
{"abc00,", ",", "abc", ""}, // Prefix and delim but not another value
{"01def,", ",", "", "def"}, // Suffix and delim but not another value
};
}
@DataProvider(name = "BadBytesThrowing")
Object[][] badBytesThrowing() {
return new Object[][]{
{new byte[1], 0, 2}, // bad toIndex
{new byte[1], 1, 2}, // bad fromIndex + toIndex
{new byte[1], -1, 2}, // bad fromIndex
{new byte[1], -1, 1}, // bad fromIndex
{new byte[1], 0, -1}, // bad toIndex
{new byte[1], 1, -1}, // bad toIndex
};
}
@DataProvider(name = "BadParseHexThrowing")
Object[][] badParseHexThrowing() {
return new Object[][]{
{"a", 0, 2, IndexOutOfBoundsException.class}, // bad toIndex
{"b", 1, 2, IndexOutOfBoundsException.class}, // bad toIndex
{"a", -1, 2, IndexOutOfBoundsException.class}, // bad fromIndex
{"b", -1, 1, IndexOutOfBoundsException.class}, // bad fromIndex
{"a", 0, -1, IndexOutOfBoundsException.class}, // bad toIndex
{"b", 1, -1, IndexOutOfBoundsException.class}, // bad fromIndex + toIndex
{"76543210", 0, 7, IllegalArgumentException.class}, // odd number of digits
{"zz00", 0, 4, IllegalArgumentException.class}, // non-hex digits
{"00zz", 0, 4, IllegalArgumentException.class}, // non-hex digits
};
}
@DataProvider(name = "BadFromHexDigitsThrowing")
Object[][] badHexDigitsThrowing() {
return new Object[][]{
{"a", 0, 2, IndexOutOfBoundsException.class}, // bad toIndex
{"b", 1, 2, IndexOutOfBoundsException.class}, // bad fromIndex + toIndex
{"a", -1, 2, IndexOutOfBoundsException.class}, // bad toIndex
{"b", -1, 1, IndexOutOfBoundsException.class}, // bad fromIndex + toIndex
{"a", 0, -1, IndexOutOfBoundsException.class}, // bad toIndex
{"b", 1, -1, IndexOutOfBoundsException.class}, // bad fromIndex + toIndex
};
}
static byte[] genBytes(int origin, int len) {
byte[] bytes = new byte[len];
for (int i = 0; i < len; i++)
bytes[i] = (byte) (origin + i);
return bytes;
}
@Test
static void testToHex() {
HexFormat hex = HexFormat.of();
for (int i = 0; i < 32; i++) {
char c = hex.toLowHexDigit((byte)i);
String expected = Integer.toHexString(i & 0xf);
assertEquals(c, expected.charAt(0), "toHex formatting");
}
}
@Test
static void testToHexDigits() {
HexFormat hex = HexFormat.of();
for (int i = 0; i < 256; i++) {
String actual = hex.toHexDigits((byte)i);
int expected = hex.fromHexDigits(actual);
assertEquals(expected, i, "fromHexDigits");
assertEquals(actual.charAt(0), hex.toHighHexDigit((byte)i),
"first char mismatch");
assertEquals(actual.charAt(1), hex.toLowHexDigit((byte)i),
"second char mismatch");
}
}
@Test
static void testIsHexDigit() {
HexFormat hex = HexFormat.of();
for (int i = 0; i < 0x3ff; i++) {
boolean actual = hex.isHexDigit(i);
boolean expected = Character.digit(i, 16) >= 0;
assertEquals(actual, expected, "isHexDigit: " + i);
}
}
@Test
static void testFromHexDigit() {
HexFormat hex = HexFormat.of();
String chars = "0123456789ABCDEF0123456789abcdef";
for (int i = 0; i < chars.length(); i++) {
int v = hex.fromHexDigit(chars.charAt(i));
assertEquals(v, i & 0xf, "fromHex decode");
}
}
@Test
static void testFromHexInvalid() {
HexFormat hex = HexFormat.of();
for (int i = 0; i < 65536; i++) {
char ch = (char)i;
if (ch > 0xff || Character.digit(ch, 16) < 0) {
assertFalse(hex.isHexDigit(ch), "isHexDigit incorrect for '" + ch + "' = " + i);
expectThrows(NumberFormatException.class,
() -> hex.fromHexDigit(ch));
}
}
}
@Test
static void testAppendHexByteWithStringBuilder() {
HexFormat hex = HexFormat.of();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 256; i++) {
sb.setLength(0);
StringBuilder sb1 = hex.toHexDigits(sb, (byte)i);
assertSame(sb1, sb, "toHexDigits returned different StringBuilder");
assertEquals(sb.length(), 2, "wrong length after append: " + i);
assertEquals(sb.charAt(0), hex.toHighHexDigit((byte)i), "MSB converted wrong");
assertEquals(sb.charAt(1), hex.toLowHexDigit((byte)i), "LSB converted wrong");
assertEquals(hex.fromHexDigits(sb), i, "hex.format(sb, byte) wrong");
}
}
@Test
static void testAppendHexByteWithCharBuffer() {
HexFormat hex = HexFormat.of();
CharBuffer cb = CharBuffer.allocate(256);
for (int i = 1; i <= 128; i++) {
CharBuffer cb1 = hex.toHexDigits(cb, (byte)i);
assertTrue(cb1 == cb);
assertEquals(cb.position(), i * 2);
}
assertEquals(cb.remaining(), 0);
}
@Test
static void testAppendHexByteWithCharArrayWriter() {
HexFormat hex = HexFormat.of();
CharArrayWriter caw = new CharArrayWriter();
for (int i = 1; i <= 128; i++) {
CharArrayWriter caw1 = hex.toHexDigits(caw, (byte)i);
assertTrue(caw1 == caw);
assertEquals(caw.size(), i * 2);
}
}
@Test
static void testFromHexPairInvalid() {
HexFormat hex = HexFormat.of();
// An assortment of invalid characters
String chars = "-0--0-";
for (int i = 0; i < chars.length(); i += 2) {
final int ndx = i;
Throwable ex = expectThrows(NumberFormatException.class,
() -> hex.fromHexDigits(chars.subSequence(ndx, ndx+2)));
System.out.println(ex);
}
}
@Test(dataProvider = "HexStringsThrowing")
static void testToBytesThrowing(String value, String sep, String prefix, String suffix) {
HexFormat hex = HexFormat.ofDelimiter(sep).withPrefix(prefix).withSuffix(suffix);
Throwable ex = expectThrows(IllegalArgumentException.class,
() -> {
byte[] v = hex.parseHex(value);
System.out.println("str: " + value + ", actual: " + v + ", bytes: " +
Arrays.toString(v));
});
System.out.println("ex: " + ex);
}
@Test
static void testFactoryNPE() {
assertThrows(NPE, () -> HexFormat.ofDelimiter(null));
assertThrows(NPE, () -> HexFormat.of().withDelimiter(null));
assertThrows(NPE, () -> HexFormat.of().withPrefix(null));
assertThrows(NPE, () -> HexFormat.of().withSuffix(null));
}
@Test
static void testFormatHexNPE() {
assertThrows(NPE, () -> HexFormat.of().formatHex(null));
assertThrows(NPE, () -> HexFormat.of().formatHex(null, 0, 1));
assertThrows(NPE, () -> HexFormat.of().formatHex(null, null));
assertThrows(NPE, () -> HexFormat.of().formatHex(null, null, 0, 0));
StringBuilder sb = new StringBuilder();
assertThrows(NPE, () -> HexFormat.of().formatHex(sb, null));
assertThrows(NPE, () -> HexFormat.of().formatHex(sb, null, 0, 1));
}
@Test
static void testParseHexNPE() {
assertThrows(NPE, () -> HexFormat.of().parseHex(null));
assertThrows(NPE, () -> HexFormat.of().parseHex((String)null, 0, 0));
assertThrows(NPE, () -> HexFormat.of().parseHex((char[])null, 0, 0));
}
@Test
static void testFromHexNPE() {
assertThrows(NPE, () -> HexFormat.of().fromHexDigits(null));
assertThrows(NPE, () -> HexFormat.of().fromHexDigits(null, 0, 0));
assertThrows(NPE, () -> HexFormat.of().fromHexDigitsToLong(null));
assertThrows(NPE, () -> HexFormat.of().fromHexDigitsToLong(null, 0, 0));
}
@Test
static void testToHexDigitsNPE() {
assertThrows(NPE, () -> HexFormat.of().toHexDigits(null, (byte)0));
}
@Test(dataProvider = "BadParseHexThrowing")
static void badParseHex(String string, int offset, int length,
Class<? extends Throwable> exClass) {
assertThrows(exClass,
() -> HexFormat.of().parseHex(string, offset, length));
char[] chars = string.toCharArray();
assertThrows(exClass,
() -> HexFormat.of().parseHex(chars, offset, length));
}
@Test(dataProvider = "BadFromHexDigitsThrowing")
static void badFromHexDigits(String string, int fromIndex, int toIndex,
Class<? extends Throwable> exClass) {
assertThrows(exClass,
() -> HexFormat.of().fromHexDigits(string, fromIndex, toIndex));
assertThrows(exClass,
() -> HexFormat.of().fromHexDigitsToLong(string, fromIndex, toIndex));
}
// Verify IAE for strings that are too long for the target primitive type
// or the number of requested digits is too large.
@Test
static void wrongNumberDigits() {
assertThrows(IllegalArgumentException.class,
() -> HexFormat.of().fromHexDigits("9876543210"));
assertThrows(IllegalArgumentException.class,
() -> HexFormat.of().fromHexDigits("9876543210", 0, 9));
assertThrows(IllegalArgumentException.class,
() -> HexFormat.of().fromHexDigitsToLong("98765432109876543210"));
assertThrows(IllegalArgumentException.class,
() -> HexFormat.of().fromHexDigitsToLong("98765432109876543210", 0, 17));
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatter(String delimiter, String prefix, String suffix,
boolean uppercase,
HexFormat hex) {
byte[] expected = genBytes('A', 15);
String res = hex.formatHex(expected);
assertTrue(res.startsWith(prefix), "Prefix not found");
assertTrue(res.endsWith(suffix), "Suffix not found");
int expectedLen = expected.length * (2 + prefix.length() +
delimiter.length() + suffix.length()) - delimiter.length();
assertEquals(res.length(), expectedLen, "String length");
if (expected.length > 1) {
// check prefix and suffix is present for each hex pair
for (int i = 0; i < expected.length; i++) {
int valueChars = prefix.length() + 2 + suffix.length();
int offset = i * (valueChars + delimiter.length());
String value = res.substring(offset, offset + valueChars);
assertTrue(value.startsWith(prefix), "wrong prefix");
assertTrue(value.endsWith(suffix), "wrong suffix");
// Check case of digits
String cc = value.substring(prefix.length(), prefix.length() + 2);
assertEquals(cc,
(uppercase) ? cc.toUpperCase(Locale.ROOT) : cc.toLowerCase(Locale.ROOT),
"Case mismatch");
if (i < expected.length - 1 && !delimiter.isEmpty()) {
// Check the delimiter is present for each pair except the last
assertEquals(res.substring(offset + valueChars,
offset + valueChars + delimiter.length()), delimiter);
}
}
}
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexString(String unused1, String unused2, String unused3,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
String s = hex.formatHex(expected);
System.out.println(" formatted: " + s);
byte[] actual = hex.parseHex(s);
System.out.println(" parsed as: " + Arrays.toString(actual));
int mismatch = Arrays.mismatch(expected, actual);
assertEquals(actual, expected, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testParseHexStringRange(String delimiter, String prefix, String suffix,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
String s = hex.formatHex(expected);
// Parse values 2, 3, 4 from the generated string
int low = 2;
int high = 5;
int stride = prefix.length() + 2 + suffix.length() + delimiter.length();
System.out.println(" formatted subrange: " +
s.substring(low * stride, high * stride - delimiter.length()));
byte[] actual = hex.parseHex(s, low * stride,
high * stride - delimiter.length());
System.out.println(" parsed as: " + Arrays.toString(actual));
assertEquals(actual.length, (high - low), "array length");
int mismatch = Arrays.mismatch(expected, low, high, actual, 0, high - low);
assertEquals(mismatch, -1, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testParseHexEmptyString(String delimiter, String prefix, String suffix,
boolean unused4, HexFormat hex) {
byte[] actual = hex.parseHex("");
assertEquals(actual.length, 0, "empty string parse");
actual = hex.parseHex("abc", 0, 0);
assertEquals(actual.length, 0, "empty string range parse");
actual = hex.parseHex(new char[1], 0, 0);
assertEquals(actual.length, 0, "empty char array subrange empty parse");
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexRangeString(String unused1, String unused2, String unused3,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
int low = 1;
int high = expected.length - 2;
String s = hex.formatHex(expected, low, high);
System.out.println(" formatted: " + s);
byte[] actual = hex.parseHex(s);
System.out.println(" parsed as: " + Arrays.toString(actual));
int mismatch = Arrays.mismatch(expected, low, high, actual, 0, high - low);
assertEquals(mismatch, -1, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexAppendable(String unused1, String unused2, String unused3,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
StringBuilder sb = new StringBuilder();
StringBuilder s = hex.formatHex(sb, expected);
assertEquals(s, sb, "formatHex returned unknown StringBuilder");
System.out.println(" formatted: " + s);
byte[] actual = hex.parseHex(s.toString());
System.out.println(" parsed as: " + Arrays.toString(actual));
int mismatch = Arrays.mismatch(expected, actual);
assertEquals(actual, expected, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexRangeAppendable(String unused1, String unused2, String unused3,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
int low = 1;
int high = expected.length - 2;
StringBuilder sb = new StringBuilder();
StringBuilder s = hex.formatHex(sb, expected, low, high);
assertEquals(s, sb, "formatHex returned unknown StringBuilder");
System.out.println(" formatted: " + s);
byte[] actual = hex.parseHex(s.toString());
System.out.println(" parsed as: " + Arrays.toString(actual));
byte[] sub = Arrays.copyOfRange(expected, low, high);
System.out.println("actual: " + Arrays.toString(actual));
System.out.println("sub : " + Arrays.toString(sub));
int mismatch = Arrays.mismatch(expected, low, high, actual, 0, high - low);
assertEquals(actual, sub, "format/parse cycle failed, mismatch: " + mismatch);
assertEquals(mismatch, -1, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexCharArray(String unused1, String unused2, String unused3,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
String s = hex.formatHex(expected);
System.out.println(" formatted: " + s);
char[] chars = s.toCharArray();
byte[] actual = hex.parseHex(chars, 0, chars.length);
System.out.println(" parsed as: " + Arrays.toString(actual));
int mismatch = Arrays.mismatch(expected, actual);
assertEquals(actual, expected, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatHexCharArrayIndexed(String delimiter, String prefix, String suffix,
boolean unused4, HexFormat hex) {
byte[] expected = genBytes('A', 15);
String s = hex.formatHex(expected);
System.out.println(" formatted: " + s);
// Parse values 2, 3, 4 from the generated string
int low = 2;
int high = 5;
int stride = prefix.length() + 2 + suffix.length() + delimiter.length();
System.out.println(" formatted subrange: " +
s.substring(low * stride, high * stride - delimiter.length()));
char[] chars = s.toCharArray();
byte[] actual = hex.parseHex(chars, low * stride,
high * stride - delimiter.length());
System.out.println(" parsed as: " + Arrays.toString(actual));
assertEquals(actual.length, (high - low), "array length");
int mismatch = Arrays.mismatch(expected, low, high, actual, 0, high - low);
assertEquals(mismatch, -1, "format/parse cycle failed, mismatch: " + mismatch);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatterToString(String delimiter, String prefix, String suffix,
boolean uppercase,
HexFormat hex) {
String actual = String.format(
"uppercase: %s, delimiter: \"%s\", prefix: \"%s\", suffix: \"%s\"",
uppercase, escapeNL(delimiter), escapeNL(prefix), escapeNL(suffix));
System.out.println(" hex: " + actual);
assertEquals(actual, hex.toString(), "Formatter toString mismatch");
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatterParameterMethods(String delimiter, String prefix, String suffix,
boolean uppercase,
HexFormat hex) {
assertEquals(hex.delimiter(), delimiter);
assertEquals(hex.prefix(), prefix);
assertEquals(hex.suffix(), suffix);
assertEquals(hex.isUpperCase(), uppercase);
}
@Test(dataProvider="HexFormattersParsers")
static void testFormatterTestEquals(String delimiter, String prefix, String suffix,
boolean uppercase,
HexFormat expected) {
HexFormat actual = HexFormat.of()
.withDelimiter(delimiter)
.withPrefix(prefix)
.withSuffix(suffix);
actual = uppercase ? actual.withUpperCase() : actual.withLowerCase();
assertEquals(actual.delimiter(), delimiter, "delimiter");
assertEquals(actual.prefix(), prefix, "prefix");
assertEquals(actual.suffix(), suffix, "suffix");
assertEquals(actual.isUpperCase(), uppercase, "uppercase");
assertTrue(actual.equals(expected), "equals method");
assertEquals(actual.hashCode(), expected.hashCode(), "hashCode");
assertTrue(actual.equals(actual)); // equals self
assertFalse(actual.equals(null)); // never equals null
}
@Test(dataProvider="HexFormattersParsers")
static void testZeroLength(String delimiter, String prefix, String suffix, boolean uppercase,
HexFormat hex) {
// Test formatting of zero length byte arrays, should produce no output
StringBuilder sb = new StringBuilder();
assertEquals(hex.formatHex(new byte[0]), "", "Zero length");
assertEquals(hex.formatHex(new byte[0], 0, 0), "", "Zero length");
hex.formatHex(sb, new byte[0]);
assertEquals(sb.length(), 0, "length should not change");
hex.formatHex(sb, new byte[0], 0, 0);
assertEquals(sb.length(), 0, "length should not change");
}
private static String escapeNL(String string) {
return string.replace("\n", "\\n")
.replace("\r", "\\r");
}
@Test
static void testfromHexDigitsToInt() {
HexFormat hex = HexFormat.of();
String allHex = "76543210";
final int orig = 0x76543210;
for (int digits = 0; digits <= 8; digits++) {
String s = hex.toHexDigits(orig, digits);
long actual = hex.fromHexDigits(s, 0, digits);
System.out.printf(" digits: %2d, formatted: \"%s\", parsed as: 0x%08x%n",
digits, s, actual);
assertEquals(s, allHex.substring(8 - digits, 8));
long expected = (digits < 8) ? orig & ~(0xffffffff << (4 * digits)) : orig;
assertEquals(actual, expected);
}
}
@Test
static void testfromHexDigitsToLong() {
HexFormat hex = HexFormat.of();
String allHex = "fedcba9876543210";
final long orig = 0xfedcba9876543210L;
for (int digits = 0; digits <= 16; digits++) {
String s = hex.toHexDigits(orig, digits);
long actual = hex.fromHexDigitsToLong(s, 0, digits);
System.out.printf(" digits: %2d, formatted: \"%s\", parsed as: 0x%016xL%n",
digits, s, actual);
assertEquals(s, allHex.substring(16 - digits, 16));
long expected = (digits < 16) ? orig & ~(0xffffffffffffffffL << (4 * digits)) : orig;
assertEquals(actual, expected);
}
}
@Test
static void testToHexDigitsLong() {
HexFormat hex = HexFormat.of();
String allHex = "fedcba9876543210";
final long expected = 0xfedcba9876543210L;
String s = hex.toHexDigits(expected);
long actual = hex.fromHexDigitsToLong(s);
System.out.printf(" formatted: \"%s\", parsed as: 0x%016xL%n", s, actual);
assertEquals(s, allHex);
assertEquals(actual, expected);
}
@Test(dataProvider="HexFormattersParsers")
static void testIOException(String delimiter, String prefix, String suffix, boolean uppercase,
HexFormat hex) {
Appendable throwingAppendable = new ThrowingAppendable();
assertThrows(UncheckedIOException.class,
() -> hex.formatHex(throwingAppendable, new byte[1]));
assertThrows(UncheckedIOException.class,
() -> hex.formatHex(throwingAppendable, new byte[1], 0, 1));
assertThrows(UncheckedIOException.class,
() -> hex.toHexDigits(throwingAppendable, (byte)1));
}
@Test(dataProvider="HexFormattersParsers")
static void testOOME(String delimiter, String prefix, String suffix, boolean uppercase,
HexFormat hex) {
// compute the size of byte array that will exceed the buffer
long valueChars = prefix.length() + 2 + suffix.length();
long stride = valueChars + delimiter.length();
long max = Integer.MAX_VALUE & 0xFFFFFFFFL;
long len = max / stride;
long remainder = max - ((len - 1) * stride);
if (remainder > valueChars) {
len++;
remainder -= valueChars;
}
try {
byte[] bytes = new byte[(int) len];
Throwable ex = expectThrows(OutOfMemoryError.class,
() -> hex.formatHex(bytes));
System.out.println("ex: " + ex);
} catch (OutOfMemoryError oome) {
System.out.printf("OOME: total mem: %08x, free mem: %08x, max mem: %08x%n",
Runtime.getRuntime().totalMemory(),
Runtime.getRuntime().freeMemory(),
Runtime.getRuntime().maxMemory());
throw oome;
}
}
/**
* Example code from the HexFormat javadoc.
* Showing simple usage of the API using "assert" to express the correct results
* when shown in the javadoc.
* The additional TestNG asserts verify the correctness of the same code.
*/
@Test
private static void samples() {
{
// Primitive formatting and parsing.
HexFormat hex = HexFormat.of();
byte b = 127;
String byteStr = hex.toHexDigits(b);
System.out.println(" " + byteStr);
byte byteVal = (byte)hex.fromHexDigits(byteStr);
assert(byteStr.equals("7f"));
assert(b == byteVal);
assertTrue(byteStr.equals("7f"));
assertTrue(b == byteVal);
char c = 'A';
String charStr = hex.toHexDigits(c);
System.out.println(" " + charStr);
int charVal = hex.fromHexDigits(charStr);
assert(c == charVal);
assertTrue(c == charVal);
int i = 12345;
String intStr = hex.toHexDigits(i);
System.out.println(" " + intStr);
int intVal = hex.fromHexDigits(intStr);
assert(i == intVal);
assertTrue(i == intVal);
long l = Long.MAX_VALUE;
String longStr = hex.toHexDigits(l, 16);
long longVal = hex.fromHexDigitsToLong(longStr, 0, 16);
System.out.println(" " + longStr + ", " + longVal);
assert(l == longVal);
assertTrue(l == longVal);
}
{
// RFC 4752 Fingerprint
HexFormat formatFingerprint = HexFormat.ofDelimiter(":").withUpperCase();
byte[] bytes = {0, 1, 2, 3, 124, 125, 126, 127};
String str = formatFingerprint.formatHex(bytes);
System.out.println(" Formatted: " + str);
byte[] parsed = formatFingerprint.parseHex(str);
System.out.println(" Parsed: " + Arrays.toString(parsed));
assert(Arrays.equals(bytes, parsed));
assertTrue(Arrays.equals(bytes, parsed));
}
{
// Comma separated formatting
HexFormat commaFormat = HexFormat.ofDelimiter(",");
byte[] bytes = {0, 1, 2, 3, 124, 125, 126, 127};
String str = commaFormat.formatHex(bytes);
System.out.println(" Formatted: " + str);
byte[] parsed = commaFormat.parseHex(str);
System.out.println(" Parsed: " + Arrays.toString(parsed));
assert(Arrays.equals(bytes, parsed));
assertTrue(Arrays.equals(bytes, parsed));
}
{
// Text formatting
HexFormat commaFormat = HexFormat.ofDelimiter(", ").withPrefix("#");
byte[] bytes = {0, 1, 2, 3, 124, 125, 126, 127};
String str = commaFormat.formatHex(bytes);
System.out.println(" Formatted: " + str);
byte[] parsed = commaFormat.parseHex(str);
System.out.println(" Parsed: " + Arrays.toString(parsed));
assert(Arrays.equals(bytes, parsed));
assertTrue(Arrays.equals(bytes, parsed));
}
}
/**
* A test implementation of Appendable that throws IOException on all methods.
*/
static class ThrowingAppendable implements Appendable {
@Override
public Appendable append(CharSequence csq) throws IOException {
throw new IOException(".append(CharSequence) always throws");
}
@Override
public Appendable append(CharSequence csq, int start, int end) throws IOException {
throw new IOException(".append(CharSequence, start, end) always throws");
}
@Override
public Appendable append(char c) throws IOException {
throw new IOException(".append(char) always throws");
}
}
}

27
test/jdk/java/util/Locale/ThaiGov.java
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2007, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -33,36 +33,11 @@ import java.text.*;
public class ThaiGov { public class ThaiGov {
char[] hex = {'0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'A', 'B',
'C', 'D', 'E', 'F'};
ThaiGov() { ThaiGov() {
System.out.println("ThaiGov locale test..."); System.out.println("ThaiGov locale test...");
} }
String toHex(String str) {
StringBuffer buff = new StringBuffer();
int y=0;
for(int x=0; x < str.length(); ++x) {
buff.append("\\u");
buff.append(toHex(str.charAt(x)));
}
return buff.toString();
}
String toHex(char ch) {
StringBuffer buff = new StringBuffer();
buff.append(hex[ch>>12]);
buff.append(hex[(ch>>8) & 0x0F]);
buff.append(hex[(ch>>4) & 0x0F]);
buff.append(hex[ch & 0x0F]);
return buff.toString();
}
void numberTest() throws RuntimeException { void numberTest() throws RuntimeException {
final String strExpected = "\u0E51\u0E52\u002C\u0E53\u0E54\u0E55\u002C\u0E56\u0E57\u0E58\u002E\u0E52\u0E53\u0E54"; final String strExpected = "\u0E51\u0E52\u002C\u0E53\u0E54\u0E55\u002C\u0E56\u0E57\u0E58\u002E\u0E52\u0E53\u0E54";
final double value = 12345678.234; final double value = 12345678.234;