5029431: (bf) Add absolute bulk put and get methods
Reviewed-by: alanb, darcy, chegar, rriggs
/*
* Copyright (c) 2000, 2019, 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.
*/
/* Type-specific source code for unit test
*
* Regenerate the BasicX classes via genBasic.sh whenever this file changes.
* We check in the generated source files so that the test tree can be used
* independently of the rest of the source tree.
*/
#warn This file is preprocessed before being compiled
import java.nio.*;
public class Basic$Type$
extends Basic
{
private static final $type$[] VALUES = {
$Fulltype$.MIN_VALUE,
($type$) -1,
($type$) 0,
($type$) 1,
$Fulltype$.MAX_VALUE,
#if[float]
$Fulltype$.NEGATIVE_INFINITY,
$Fulltype$.POSITIVE_INFINITY,
$Fulltype$.NaN,
($type$) -0.0,
#end[float]
#if[double]
$Fulltype$.NEGATIVE_INFINITY,
$Fulltype$.POSITIVE_INFINITY,
$Fulltype$.NaN,
($type$) -0.0,
#end[double]
};
private static void relGet($Type$Buffer b) {
int n = b.capacity();
for (int i = 0; i < n; i++)
ck(b, (long)b.get(), (long)(($type$)ic(i)));
b.rewind();
}
private static void relGet($Type$Buffer b, int start) {
int n = b.remaining();
for (int i = start; i < n; i++)
ck(b, (long)b.get(), (long)(($type$)ic(i)));
b.rewind();
}
private static void absGet($Type$Buffer b) {
int n = b.capacity();
for (int i = 0; i < n; i++)
ck(b, (long)b.get(), (long)(($type$)ic(i)));
b.rewind();
}
private static void bulkGet($Type$Buffer b) {
int n = b.capacity();
$type$[] a = new $type$[n + 7];
b.get(a, 7, n);
for (int i = 0; i < n; i++) {
ck(b, (long)a[i + 7], (long)(($type$)ic(i)));
}
}
private static void absBulkGet($Type$Buffer b) {
int n = b.capacity();
int len = n - 7*2;
$type$[] a = new $type$[n + 7];
b.position(42);
b.get(7, a, 7, len);
ck(b, b.position() == 42);
for (int i = 0; i < len; i++) {
ck(b, (long)a[i + 7], (long)(($type$)ic(i)));
}
}
private static void relPut($Type$Buffer b) {
int n = b.capacity();
b.clear();
for (int i = 0; i < n; i++)
b.put(($type$)ic(i));
b.flip();
}
private static void absPut($Type$Buffer b) {
int n = b.capacity();
b.clear();
for (int i = 0; i < n; i++)
b.put(i, ($type$)ic(i));
b.limit(n);
b.position(0);
}
private static void bulkPutArray($Type$Buffer b) {
int n = b.capacity();
b.clear();
$type$[] a = new $type$[n + 7];
for (int i = 0; i < n; i++)
a[i + 7] = ($type$)ic(i);
b.put(a, 7, n);
b.flip();
}
private static void bulkPutBuffer($Type$Buffer b) {
int n = b.capacity();
b.clear();
$Type$Buffer c = $Type$Buffer.allocate(n + 7);
c.position(7);
for (int i = 0; i < n; i++)
c.put(($type$)ic(i));
c.flip();
c.position(7);
b.put(c);
b.flip();
try {
b.put(b);
fail("IllegalArgumentException expected for put into same buffer");
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected from"
+ " put into same buffer");
}
}
}
private static void absBulkPutArray($Type$Buffer b) {
int n = b.capacity();
b.clear();
int lim = n - 7;
int len = lim - 7;
b.limit(lim);
$type$[] a = new $type$[len + 7];
for (int i = 0; i < len; i++)
a[i + 7] = ($type$)ic(i);
b.position(42);
b.put(7, a, 7, len);
ck(b, b.position() == 42);
}
//6231529
private static void callReset($Type$Buffer b) {
b.position(0);
b.mark();
b.duplicate().reset();
b.asReadOnlyBuffer().reset();
}
#if[byte]
#else[byte]
// 6221101-6234263
private static void putBuffer() {
final int cap = 10;
$Type$Buffer direct1 = ByteBuffer.allocateDirect(cap).as$Type$Buffer();
$Type$Buffer nondirect1 = ByteBuffer.allocate(cap).as$Type$Buffer();
direct1.put(nondirect1);
$Type$Buffer direct2 = ByteBuffer.allocateDirect(cap).as$Type$Buffer();
$Type$Buffer nondirect2 = ByteBuffer.allocate(cap).as$Type$Buffer();
nondirect2.put(direct2);
$Type$Buffer direct3 = ByteBuffer.allocateDirect(cap).as$Type$Buffer();
$Type$Buffer direct4 = ByteBuffer.allocateDirect(cap).as$Type$Buffer();
direct3.put(direct4);
$Type$Buffer nondirect3 = ByteBuffer.allocate(cap).as$Type$Buffer();
$Type$Buffer nondirect4 = ByteBuffer.allocate(cap).as$Type$Buffer();
nondirect3.put(nondirect4);
}
#end[byte]
#if[char]
private static void bulkPutString($Type$Buffer b) {
int n = b.capacity();
b.clear();
StringBuilder sb = new StringBuilder(n + 7);
sb.append("1234567");
for (int i = 0; i < n; i++)
sb.append((char)ic(i));
b.put(sb.toString(), 7, 7 + n);
b.flip();
}
#end[char]
private static void checkSlice($Type$Buffer b, $Type$Buffer slice) {
ck(slice, 0, slice.position());
ck(slice, b.remaining(), slice.limit());
ck(slice, b.remaining(), slice.capacity());
if (b.isDirect() != slice.isDirect())
fail("Lost direction", slice);
if (b.isReadOnly() != slice.isReadOnly())
fail("Lost read-only", slice);
}
#if[byte]
private static void checkBytes(ByteBuffer b, byte[] bs) {
int n = bs.length;
int p = b.position();
if (b.order() == ByteOrder.BIG_ENDIAN) {
for (int i = 0; i < n; i++) {
ck(b, b.get(), bs[i]);
}
} else {
for (int i = n - 1; i >= 0; i--) {
ck(b, b.get(), bs[i]);
}
}
b.position(p);
}
private static void compact(Buffer b) {
try {
Class<?> cl = b.getClass();
java.lang.reflect.Method m = cl.getDeclaredMethod("compact");
m.setAccessible(true);
m.invoke(b);
} catch (Exception e) {
fail(e.getMessage(), b);
}
}
private static void checkInvalidMarkException(final Buffer b) {
tryCatch(b, InvalidMarkException.class, () -> {
b.mark();
compact(b);
b.reset();
});
}
private static void testViews(int level, ByteBuffer b, boolean direct) {
ShortBuffer sb = b.asShortBuffer();
BasicShort.test(level, sb, direct);
checkBytes(b, new byte[] { 0, (byte)ic(0) });
checkInvalidMarkException(sb);
CharBuffer cb = b.asCharBuffer();
BasicChar.test(level, cb, direct);
checkBytes(b, new byte[] { 0, (byte)ic(0) });
checkInvalidMarkException(cb);
IntBuffer ib = b.asIntBuffer();
BasicInt.test(level, ib, direct);
checkBytes(b, new byte[] { 0, 0, 0, (byte)ic(0) });
checkInvalidMarkException(ib);
LongBuffer lb = b.asLongBuffer();
BasicLong.test(level, lb, direct);
checkBytes(b, new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte)ic(0) });
checkInvalidMarkException(lb);
FloatBuffer fb = b.asFloatBuffer();
BasicFloat.test(level, fb, direct);
checkBytes(b, new byte[] { 0x42, (byte)0xc2, 0, 0 });
checkInvalidMarkException(fb);
DoubleBuffer db = b.asDoubleBuffer();
BasicDouble.test(level, db, direct);
checkBytes(b, new byte[] { 0x40, 0x58, 0x40, 0, 0, 0, 0, 0 });
checkInvalidMarkException(db);
}
private static void testHet(int level, ByteBuffer b) {
int p = b.position();
b.limit(b.capacity());
show(level, b);
out.print(" put:");
b.putChar((char)1);
b.putChar((char)Character.MAX_VALUE);
out.print(" char");
b.putShort((short)1);
b.putShort((short)Short.MAX_VALUE);
out.print(" short");
b.putInt(1);
b.putInt(Integer.MAX_VALUE);
out.print(" int");
b.putLong((long)1);
b.putLong((long)Long.MAX_VALUE);
out.print(" long");
b.putFloat((float)1);
b.putFloat((float)Float.MIN_VALUE);
b.putFloat((float)Float.MAX_VALUE);
out.print(" float");
b.putDouble((double)1);
b.putDouble((double)Double.MIN_VALUE);
b.putDouble((double)Double.MAX_VALUE);
out.print(" double");
out.println();
b.limit(b.position());
b.position(p);
show(level, b);
out.print(" get:");
ck(b, b.getChar(), 1);
ck(b, b.getChar(), Character.MAX_VALUE);
out.print(" char");
ck(b, b.getShort(), 1);
ck(b, b.getShort(), Short.MAX_VALUE);
out.print(" short");
ck(b, b.getInt(), 1);
ck(b, b.getInt(), Integer.MAX_VALUE);
out.print(" int");
ck(b, b.getLong(), 1);
ck(b, b.getLong(), Long.MAX_VALUE);
out.print(" long");
ck(b, (long)b.getFloat(), 1);
ck(b, (long)b.getFloat(), (long)Float.MIN_VALUE);
ck(b, (long)b.getFloat(), (long)Float.MAX_VALUE);
out.print(" float");
ck(b, (long)b.getDouble(), 1);
ck(b, (long)b.getDouble(), (long)Double.MIN_VALUE);
ck(b, (long)b.getDouble(), (long)Double.MAX_VALUE);
out.print(" double");
out.println();
}
private static void testAlign(final ByteBuffer b, boolean direct) {
// index out-of bounds
catchIllegalArgument(b, () -> b.alignmentOffset(-1, (short) 1));
// unit size values
catchIllegalArgument(b, () -> b.alignmentOffset(0, (short) 0));
for (int us = 1; us < 65; us++) {
int _us = us;
if ((us & (us - 1)) != 0) {
// unit size not a power of two
catchIllegalArgument(b, () -> b.alignmentOffset(0, _us));
} else {
if (direct || us <= 8) {
b.alignmentOffset(0, us);
} else {
// unit size > 8 with non-direct buffer
tryCatch(b, UnsupportedOperationException.class,
() -> b.alignmentOffset(0, _us));
}
}
}
// Probe for long misalignment at index zero for a newly created buffer
ByteBuffer empty =
direct ? ByteBuffer.allocateDirect(0) : ByteBuffer.allocate(0);
int longMisalignmentAtZero = empty.alignmentOffset(0, 8);
if (direct) {
// Freshly created direct byte buffers should be aligned at index 0
// for ref and primitive values (see Unsafe.allocateMemory)
if (longMisalignmentAtZero != 0) {
fail("Direct byte buffer misaligned at index 0"
+ " for ref and primitive values "
+ longMisalignmentAtZero);
}
} else {
// For heap byte buffers misalignment may occur on 32-bit systems
// where Unsafe.ARRAY_BYTE_BASE_OFFSET % 8 == 4 and not 0
// Note the GC will preserve alignment of the base address of the
// array
if (jdk.internal.misc.Unsafe.ARRAY_BYTE_BASE_OFFSET % 8
!= longMisalignmentAtZero) {
fail("Heap byte buffer misaligned at index 0"
+ " for ref and primitive values "
+ longMisalignmentAtZero);
}
}
// Ensure test buffer is correctly aligned at index 0
if (b.alignmentOffset(0, 8) != longMisalignmentAtZero)
fail("Test input buffer not correctly aligned at index 0", b);
// Test misalignment values
for (int us : new int[]{1, 2, 4, 8}) {
for (int i = 0; i < us * 2; i++) {
int am = b.alignmentOffset(i, us);
int expectedAm = (longMisalignmentAtZero + i) % us;
if (am != expectedAm) {
String f = "b.alignmentOffset(%d, %d) == %d incorrect, expected %d";
fail(String.format(f, i, us, am, expectedAm));
}
}
}
// Created aligned slice to test against
int ap = 8 - longMisalignmentAtZero;
int al = b.limit() - b.alignmentOffset(b.limit(), 8);
ByteBuffer ab = b.position(ap).limit(al).
slice();
if (ab.limit() == 0) {
fail("Test input buffer not sufficiently sized to cover" +
" an aligned region for all values", b);
}
if (ab.alignmentOffset(0, 8) != 0)
fail("Aligned test input buffer not correctly aligned at index 0", ab);
for (int us : new int[]{1, 2, 4, 8}) {
for (int p = 1; p < 16; p++) {
int l = ab.limit() - p;
ByteBuffer as = ab.slice().position(p).limit(l).
alignedSlice(us);
ck(as, 0, as.position());
ck(as, as.capacity(), as.limit());
if (b.isDirect() != as.isDirect())
fail("Lost direction", as);
if (b.isReadOnly() != as.isReadOnly())
fail("Lost read-only", as);
if (as.alignmentOffset(0, us) != 0)
fail("Buffer not correctly aligned at index 0", as);
if (as.alignmentOffset(as.limit(), us) != 0)
fail("Buffer not correctly aligned at limit", as);
int p_mod = ab.alignmentOffset(p, us);
int l_mod = ab.alignmentOffset(l, us);
// Round up position
p = (p_mod > 0) ? p + (us - p_mod) : p;
// Round down limit
l = l - l_mod;
int ec = l - p;
if (as.limit() != ec) {
fail("Buffer capacity incorrect, expected: " + ec, as);
}
}
}
}
#end[byte]
private static void fail(String problem,
$Type$Buffer xb, $Type$Buffer yb,
$type$ x, $type$ y) {
fail(problem + String.format(": x=%s y=%s", x, y), xb, yb);
}
private static void catchNullArgument(Buffer b, Runnable thunk) {
tryCatch(b, NullPointerException.class, thunk);
}
private static void catchIllegalArgument(Buffer b, Runnable thunk) {
tryCatch(b, IllegalArgumentException.class, thunk);
}
private static void catchReadOnlyBuffer(Buffer b, Runnable thunk) {
tryCatch(b, ReadOnlyBufferException.class, thunk);
}
private static void catchIndexOutOfBounds(Buffer b, Runnable thunk) {
tryCatch(b, IndexOutOfBoundsException.class, thunk);
}
private static void catchIndexOutOfBounds($type$[] t, Runnable thunk) {
tryCatch(t, IndexOutOfBoundsException.class, thunk);
}
private static void tryCatch(Buffer b, Class<?> ex, Runnable thunk) {
boolean caught = false;
try {
thunk.run();
} catch (Throwable x) {
if (ex.isAssignableFrom(x.getClass())) {
caught = true;
} else {
String s = x.getMessage();
if (s == null)
s = x.getClass().getName();
fail(s + " not expected");
}
}
if (!caught) {
fail(ex.getName() + " not thrown", b);
}
}
private static void tryCatch($type$[] t, Class<?> ex, Runnable thunk) {
tryCatch($Type$Buffer.wrap(t), ex, thunk);
}
public static void test(int level, final $Type$Buffer b, boolean direct) {
show(level, b);
if (direct != b.isDirect())
fail("Wrong direction", b);
// Gets and puts
relPut(b);
relGet(b);
absGet(b);
bulkGet(b);
absPut(b);
relGet(b);
absGet(b);
bulkGet(b);
bulkPutArray(b);
relGet(b);
bulkPutBuffer(b);
relGet(b);
absBulkPutArray(b);
absBulkGet(b);
#if[char]
bulkPutString(b);
relGet(b);
b.position(1);
b.limit(7);
ck(b, b.toString().equals("bcdefg"));
// CharSequence ops
b.position(2);
ck(b, b.charAt(1), 'd');
CharBuffer c = b.subSequence(1, 4);
ck(c, c.capacity(), b.capacity());
ck(c, c.position(), b.position()+1);
ck(c, c.limit(), b.position()+4);
ck(c, b.subSequence(1, 4).toString().equals("def"));
// 4938424
b.position(4);
ck(b, b.charAt(1), 'f');
ck(b, b.subSequence(1, 3).toString().equals("fg"));
// String ops
// 7190219
b.clear();
int pos = b.position();
tryCatch(b, BufferOverflowException.class, () ->
b.put(String.valueOf(new char[b.capacity() + 1]), 0, b.capacity() + 1)
);
ck(b, b.position(), pos);
relGet(b);
#end[char]
// Compact
relPut(b);
b.position(13);
b.compact();
b.flip();
relGet(b, 13);
// Exceptions
relPut(b);
b.limit(b.capacity() / 2);
b.position(b.limit());
tryCatch(b, BufferUnderflowException.class, () -> b.get());
tryCatch(b, BufferOverflowException.class, () -> b.put(($type$)42));
// The index must be non-negative and less than the buffer's limit.
catchIndexOutOfBounds(b, () -> b.get(b.limit()));
catchIndexOutOfBounds(b, () -> b.get(-1));
catchIndexOutOfBounds(b, () -> b.put(b.limit(), ($type$)42));
tryCatch(b, InvalidMarkException.class,
() -> b.position(0).mark().compact().reset());
try {
b.position(b.limit() + 1);
fail("IllegalArgumentException expected for position beyond limit");
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " position beyond limit");
}
}
try {
b.position(-1);
fail("IllegalArgumentException expected for negative position");
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " negative position");
}
}
try {
b.limit(b.capacity() + 1);
fail("IllegalArgumentException expected for limit beyond capacity");
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " limit beyond capacity");
}
}
try {
b.limit(-1);
fail("IllegalArgumentException expected for negative limit");
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " negative limit");
}
}
// Exceptions in absolute bulk operations
catchNullArgument(b, () -> b.get(7, null, 0, 42));
catchNullArgument(b, () -> b.put(7, ($type$[])null, 0, 42));
$type$[] tmpa = new $type$[42];
catchIndexOutOfBounds(b, () -> b.get(7, tmpa, -1, 42));
catchIndexOutOfBounds(b, () -> b.get(7, tmpa, 42, 1));
catchIndexOutOfBounds(b, () -> b.get(7, tmpa, 41, -1));
catchIndexOutOfBounds(b, () -> b.get(-1, tmpa, 0, 1));
catchIndexOutOfBounds(b, () -> b.get(b.limit(), tmpa, 0, 1));
catchIndexOutOfBounds(b, () -> b.get(b.limit() - 41, tmpa, 0, 42));
catchIndexOutOfBounds(b, () -> b.put(7, tmpa, -1, 42));
catchIndexOutOfBounds(b, () -> b.put(7, tmpa, 42, 1));
catchIndexOutOfBounds(b, () -> b.put(7, tmpa, 41, -1));
catchIndexOutOfBounds(b, () -> b.put(-1, tmpa, 0, 1));
catchIndexOutOfBounds(b, () -> b.put(b.limit(), tmpa, 0, 1));
catchIndexOutOfBounds(b, () -> b.put(b.limit() - 41, tmpa, 0, 42));
// Values
b.clear();
b.put(($type$)0);
b.put(($type$)-1);
b.put(($type$)1);
b.put($Fulltype$.MAX_VALUE);
b.put($Fulltype$.MIN_VALUE);
#if[float]
b.put(-Float.MAX_VALUE);
b.put(-Float.MIN_VALUE);
b.put(Float.NEGATIVE_INFINITY);
b.put(Float.POSITIVE_INFINITY);
b.put(Float.NaN);
b.put(0.91697687f); // Changes value if incorrectly swapped
#end[float]
#if[double]
b.put(-Double.MAX_VALUE);
b.put(-Double.MIN_VALUE);
b.put(Double.NEGATIVE_INFINITY);
b.put(Double.POSITIVE_INFINITY);
b.put(Double.NaN);
b.put(0.5121609353879392); // Changes value if incorrectly swapped
#end[double]
b.flip();
ck(b, b.get(), 0);
ck(b, b.get(), ($type$)-1);
ck(b, b.get(), 1);
ck(b, b.get(), $Fulltype$.MAX_VALUE);
ck(b, b.get(), $Fulltype$.MIN_VALUE);
#if[float]
$type$ v;
ck(b, b.get(), -Float.MAX_VALUE);
ck(b, b.get(), -Float.MIN_VALUE);
ck(b, b.get(), Float.NEGATIVE_INFINITY);
ck(b, b.get(), Float.POSITIVE_INFINITY);
if (Float.floatToRawIntBits(v = b.get()) !=
Float.floatToRawIntBits(Float.NaN)) {
fail(b, (long)Float.NaN, (long)v);
}
ck(b, b.get(), 0.91697687f);
#end[float]
#if[double]
$type$ v;
ck(b, b.get(), -Double.MAX_VALUE);
ck(b, b.get(), -Double.MIN_VALUE);
ck(b, b.get(), Double.NEGATIVE_INFINITY);
ck(b, b.get(), Double.POSITIVE_INFINITY);
if (Double.doubleToRawLongBits(v = b.get())
!= Double.doubleToRawLongBits(Double.NaN)) {
fail(b, (long)Double.NaN, (long)v);
}
ck(b, b.get(), 0.5121609353879392);
#end[double]
// Comparison
b.rewind();
$Type$Buffer b2 = $Type$Buffer.allocate(b.capacity());
b2.put(b);
b2.flip();
b.position(2);
b2.position(2);
if (!b.equals(b2)) {
for (int i = 2; i < b.limit(); i++) {
$type$ x = b.get(i);
$type$ y = b2.get(i);
if (x != y
#if[double]
|| Double.compare(x, y) != 0
#end[double]
#if[float]
|| Float.compare(x, y) != 0
#end[float]
) {
out.println("[" + i + "] " + x + " != " + y);
}
}
fail("Identical buffers not equal", b, b2);
}
if (b.compareTo(b2) != 0) {
fail("Comparison to identical buffer != 0", b, b2);
}
b.limit(b.limit() + 1);
b.position(b.limit() - 1);
b.put(($type$)99);
b.rewind();
b2.rewind();
if (b.equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.compareTo(b2) <= 0)
fail("Comparison to shorter buffer <= 0", b, b2);
b.limit(b.limit() - 1);
b.put(2, ($type$)42);
if (b.equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.compareTo(b2) <= 0)
fail("Comparison to lesser buffer <= 0", b, b2);
// Check equals and compareTo with interesting values
for ($type$ x : VALUES) {
$Type$Buffer xb = $Type$Buffer.wrap(new $type$[] { x });
if (xb.compareTo(xb) != 0) {
fail("compareTo not reflexive", xb, xb, x, x);
}
if (!xb.equals(xb)) {
fail("equals not reflexive", xb, xb, x, x);
}
for ($type$ y : VALUES) {
$Type$Buffer yb = $Type$Buffer.wrap(new $type$[] { y });
if (xb.compareTo(yb) != - yb.compareTo(xb)) {
fail("compareTo not anti-symmetric",
xb, yb, x, y);
}
if ((xb.compareTo(yb) == 0) != xb.equals(yb)) {
fail("compareTo inconsistent with equals",
xb, yb, x, y);
}
if (xb.compareTo(yb) != $Fulltype$.compare(x, y)) {
#if[float]
if (x == 0.0 && y == 0.0) continue;
#end[float]
#if[double]
if (x == 0.0 && y == 0.0) continue;
#end[double]
fail("Incorrect results for $Type$Buffer.compareTo",
xb, yb, x, y);
}
if (xb.equals(yb) != ((x == y) || ((x != x) && (y != y)))) {
fail("Incorrect results for $Type$Buffer.equals",
xb, yb, x, y);
}
}
}
// Sub, dup
relPut(b);
relGet(b.duplicate());
b.position(13);
relGet(b.duplicate(), 13);
relGet(b.duplicate().slice(), 13);
relGet(b.slice(), 13);
relGet(b.slice().duplicate(), 13);
// Slice
b.position(5);
$Type$Buffer sb = b.slice();
checkSlice(b, sb);
b.position(0);
$Type$Buffer sb2 = sb.slice();
checkSlice(sb, sb2);
if (!sb.equals(sb2))
fail("Sliced slices do not match", sb, sb2);
if ((sb.hasArray()) && (sb.arrayOffset() != sb2.arrayOffset())) {
fail("Array offsets do not match: "
+ sb.arrayOffset() + " != " + sb2.arrayOffset(), sb, sb2);
}
#if[byte]
// Views
b.clear();
b.order(ByteOrder.BIG_ENDIAN);
testViews(level + 1, b, direct);
for (int i = 1; i <= 9; i++) {
b.position(i);
show(level + 1, b);
testViews(level + 2, b, direct);
}
b.position(0);
b.order(ByteOrder.LITTLE_ENDIAN);
testViews(level + 1, b, direct);
// Heterogeneous accessors
b.order(ByteOrder.BIG_ENDIAN);
for (int i = 0; i <= 9; i++) {
b.position(i);
testHet(level + 1, b);
}
b.order(ByteOrder.LITTLE_ENDIAN);
b.position(3);
testHet(level + 1, b);
#end[byte]
// Read-only views
b.rewind();
final $Type$Buffer rb = b.asReadOnlyBuffer();
if (!b.equals(rb))
fail("Buffer not equal to read-only view", b, rb);
show(level + 1, rb);
catchReadOnlyBuffer(b, () -> relPut(rb));
catchReadOnlyBuffer(b, () -> absPut(rb));
catchReadOnlyBuffer(b, () -> bulkPutArray(rb));
catchReadOnlyBuffer(b, () -> bulkPutBuffer(rb));
catchReadOnlyBuffer(b, () -> absBulkPutArray(rb));
// put($Type$Buffer) should not change source position
final $Type$Buffer src = $Type$Buffer.allocate(1);
catchReadOnlyBuffer(b, () -> rb.put(src));
ck(src, src.position(), 0);
catchReadOnlyBuffer(b, () -> rb.compact());
#if[byte]
catchReadOnlyBuffer(b, () -> rb.putChar((char)1));
catchReadOnlyBuffer(b, () -> rb.putChar(0, (char)1));
catchReadOnlyBuffer(b, () -> rb.putShort((short)1));
catchReadOnlyBuffer(b, () -> rb.putShort(0, (short)1));
catchReadOnlyBuffer(b, () -> rb.putInt(1));
catchReadOnlyBuffer(b, () -> rb.putInt(0, 1));
catchReadOnlyBuffer(b, () -> rb.putLong((long)1));
catchReadOnlyBuffer(b, () -> rb.putLong(0, (long)1));
catchReadOnlyBuffer(b, () -> rb.putFloat((float)1));
catchReadOnlyBuffer(b, () -> rb.putFloat(0, (float)1));
catchReadOnlyBuffer(b, () -> rb.putDouble((double)1));
catchReadOnlyBuffer(b, () -> rb.putDouble(0, (double)1));
#end[byte]
#if[char]
// 7199551
catchReadOnlyBuffer(b, () -> rb.put(new String(new char[rb.remaining() + 1])));
catchReadOnlyBuffer(b, () -> rb.append(new String(new char[rb.remaining() + 1])));
#end[char]
if (rb.getClass().getName().startsWith("java.nio.Heap")) {
catchReadOnlyBuffer(b, () -> rb.array());
catchReadOnlyBuffer(b, () -> rb.arrayOffset());
if (rb.hasArray()) {
fail("Read-only heap buffer's backing array is accessible", rb);
}
}
// Bulk puts from read-only buffers
b.clear();
rb.rewind();
b.put(rb);
#if[byte]
// For byte buffers, test both the direct and non-direct cases
$Type$Buffer ob
= (b.isDirect()
? $Type$Buffer.allocate(rb.capacity())
: $Type$Buffer.allocateDirect(rb.capacity()));
rb.rewind();
ob.put(rb);
#end[byte]
relPut(b); // Required by testViews
#if[byte]
// Test alignment
testAlign(b, direct);
#end[byte]
}
#if[char]
private static void testStr() {
final String s = "abcdefghijklm";
int start = 3;
int end = 9;
final CharBuffer b = CharBuffer.wrap(s, start, end);
show(0, b);
ck(b, b.toString().equals(s.substring(start, end)));
ck(b, b.toString().equals("defghi"));
ck(b, b.isReadOnly());
catchReadOnlyBuffer(b, () -> b.put('x'));
ck(b, start, b.position());
ck(b, end, b.limit());
ck(b, s.length(), b.capacity());
b.position(6);
ck(b, b.subSequence(0,3).toString().equals("ghi"));
// absolute bulk get
char[] c = new char[end + 1 - (start - 1) + 1]; // [start - 1, end + 1]
b.limit(end + 2);
b.get(start - 1, c, 0, c.length);
for (int i = 0; i < c.length; i++)
ck(b, c[i], s.charAt(start - 1 + i));
// The index, relative to the position, must be non-negative and
// smaller than remaining().
catchIndexOutOfBounds(b, () -> b.charAt(-1));
catchIndexOutOfBounds(b, () -> b.charAt(b.remaining()));
// The index must be non-negative and less than the buffer's limit.
catchIndexOutOfBounds(b, () -> b.get(b.limit()));
catchIndexOutOfBounds(b, () -> b.get(-1));
// The start must be non-negative and no larger than remaining().
catchIndexOutOfBounds(b, () -> b.subSequence(-1, b.remaining()));
catchIndexOutOfBounds(b, () -> b.subSequence(b.remaining() + 1, b.remaining()));
// The end must be no smaller than start and no larger than
// remaining().
catchIndexOutOfBounds(b, () -> b.subSequence(2, 1));
catchIndexOutOfBounds(b, () -> b.subSequence(0, b.remaining() + 1));
// The offset must be non-negative and no larger than <array.length>.
catchIndexOutOfBounds(b, () -> $Type$Buffer.wrap(s, -1, s.length()));
catchIndexOutOfBounds(b, () -> $Type$Buffer.wrap(s, s.length() + 1, s.length()));
catchIndexOutOfBounds(b, () -> $Type$Buffer.wrap(s, 1, 0));
catchIndexOutOfBounds(b, () -> $Type$Buffer.wrap(s, 0, s.length() + 1));
}
#end[char]
public static void test(final $type$ [] ba) {
int offset = 47;
int length = 900;
final $Type$Buffer b = $Type$Buffer.wrap(ba, offset, length);
show(0, b);
ck(b, b.capacity(), ba.length);
ck(b, b.position(), offset);
ck(b, b.limit(), offset + length);
// The offset must be non-negative and no larger than <array.length>.
catchIndexOutOfBounds(ba, () -> $Type$Buffer.wrap(ba, -1, ba.length));
catchIndexOutOfBounds(ba, () -> $Type$Buffer.wrap(ba, ba.length + 1, ba.length));
catchIndexOutOfBounds(ba, () -> $Type$Buffer.wrap(ba, 0, -1));
catchIndexOutOfBounds(ba, () -> $Type$Buffer.wrap(ba, 0, ba.length + 1));
// A NullPointerException will be thrown if the array is null.
tryCatch(ba, NullPointerException.class,
() -> $Type$Buffer.wrap(($type$ []) null, 0, 5));
tryCatch(ba, NullPointerException.class,
() -> $Type$Buffer.wrap(($type$ []) null));
}
private static void testAllocate() {
// An IllegalArgumentException will be thrown for negative capacities.
catchIllegalArgument((Buffer) null, () -> $Type$Buffer.allocate(-1));
try {
$Type$Buffer.allocate(-1);
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " attempt to allocate negative capacity buffer");
}
}
#if[byte]
catchIllegalArgument((Buffer) null, () -> $Type$Buffer.allocateDirect(-1));
try {
$Type$Buffer.allocateDirect(-1);
} catch (IllegalArgumentException e) {
if (e.getMessage() == null) {
fail("Non-null IllegalArgumentException message expected for"
+ " attempt to allocate negative capacity direct buffer");
}
}
#end[byte]
}
public static void test() {
testAllocate();
test(0, $Type$Buffer.allocate(7 * 1024), false);
test(0, $Type$Buffer.wrap(new $type$[7 * 1024], 0, 7 * 1024), false);
test(new $type$[1024]);
#if[byte]
$Type$Buffer b = $Type$Buffer.allocateDirect(7 * 1024);
for (b.position(0); b.position() < b.limit(); )
ck(b, b.get(), 0);
test(0, b, true);
#end[byte]
#if[char]
testStr();
#end[char]
callReset($Type$Buffer.allocate(10));
#if[byte]
#else[byte]
putBuffer();
#end[byte]
}
}