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/* Copyright (c) 2007 Timothy Wall, All Rights Reserved
*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
package com.sun.jna;
import junit.framework.TestCase;
import com.sun.jna.ptr.ByteByReference;
import com.sun.jna.ptr.DoubleByReference;
import com.sun.jna.ptr.FloatByReference;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.LongByReference;
import com.sun.jna.ptr.NativeLongByReference;
import com.sun.jna.ptr.PointerByReference;
import com.sun.jna.ptr.ShortByReference;
/** Exercise a range of native methods.
*
* @author twall@users.sf.net
*/
public class ByReferenceArgumentsTest extends TestCase {
public static interface TestLibrary extends Library {
void incrementInt8ByReference(ByteByReference b);
void incrementInt16ByReference(ShortByReference s);
void incrementInt32ByReference(IntByReference i);
void incrementNativeLongByReference(NativeLongByReference l);
void incrementInt64ByReference(LongByReference l);
void complementFloatByReference(FloatByReference f);
void complementDoubleByReference(DoubleByReference d);
void setPointerByReferenceNull(PointerByReference p);
}
TestLibrary lib;
@Override
protected void setUp() {
lib = Native.load("testlib", TestLibrary.class);
}
@Override
protected void tearDown() {
lib = null;
}
public void testByteByReference() {
ByteByReference bref = new ByteByReference();
lib.incrementInt8ByReference(bref);
assertEquals("Byte argument not modified", 1, bref.getValue());
}
public void testShortByReference() {
ShortByReference sref = new ShortByReference();
lib.incrementInt16ByReference(sref);
assertEquals("Short argument not modified", 1, sref.getValue());
}
public void testIntByReference() {
IntByReference iref = new IntByReference();
lib.incrementInt32ByReference(iref);
assertEquals("Int argument not modified", 1, iref.getValue());
}
public void testNativeLongByReference() {
NativeLongByReference iref = new NativeLongByReference();
lib.incrementNativeLongByReference(iref);
assertEquals("Native long argument not modified",
new NativeLong(1), iref.getValue());
}
public void testLongByReference() {
LongByReference lref = new LongByReference();
lib.incrementInt64ByReference(lref);
assertEquals("Long argument not modified", 1, lref.getValue());
}
public void testFloatByReference() {
FloatByReference fref = new FloatByReference(1f);
lib.complementFloatByReference(fref);
assertEquals("Float argument not modified", -1f, fref.getValue(), 0.0);
}
public void testDoubleByReference() {
DoubleByReference dref = new DoubleByReference(1d);
lib.complementDoubleByReference(dref);
assertEquals("Int argument not modified", -1d, dref.getValue(), 0.0);
}
public void testPointerByReference() {
PointerByReference pref = new PointerByReference();
assertNull("Default pointer should be null", pref.getValue());
pref = new PointerByReference(new Memory(16));
assertNotNull("Explicit pointer should not be null", pref.getValue());
lib.setPointerByReferenceNull(pref);
assertNull("Default pointer should be NULL after call", pref.getValue());
}
public static void main(java.lang.String[] argList) {
junit.textui.TestRunner.run(ByReferenceArgumentsTest.class);
}
}
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