/* Copyright (c) 2007 Timothy Wall, All Rights Reserved
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* <p/>
* This library 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
* Lesser General Public License for more details.
*/
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.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 incrementInt64ByReference(LongByReference l);
void complementFloatByReference(FloatByReference f);
void complementDoubleByReference(DoubleByReference d);
void setPointerByReferenceNull(PointerByReference p);
}
TestLibrary lib;
protected void setUp() {
lib = (TestLibrary)Native.loadLibrary("testlib", TestLibrary.class);
}
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 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);
}
}