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/* Copyright (c) 2007 Wayne Meissner, 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 java.util.Arrays;
import java.util.List;
import junit.framework.TestCase;
import com.sun.jna.VarArgsTest.TestLibrary.TestStructure;
public class VarArgsTest extends TestCase {
final int MAGIC32 = 0x12345678;
public static interface TestLibrary extends Library {
public static class TestStructure extends Structure {
public int magic = 0;
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("magic");
}
}
public int addVarArgs(String fmt, Number... args);
public int addSeveralFixedArgsAndVarArgs(int a, int b, int c, int d, int nArgs, Integer... args);
public String returnStringVarArgs(String fmt, Object... args);
public void modifyStructureVarArgs(String fmt, Object... args);
public String returnStringVarArgs2(String fmt, String... args);
}
TestLibrary lib;
@Override
protected void setUp() {
lib = Native.load("testlib", TestLibrary.class);
}
@Override
protected void tearDown() {
lib = null;
}
public void testIntVarArgs() {
int arg1 = 1;
int arg2 = 2;
assertEquals("32-bit integer varargs not added correctly", arg1 + arg2,
lib.addVarArgs("dd", arg1, arg2));
}
public void testByteVarArgs() {
byte arg1 = 1;
byte arg2 = 2;
assertEquals("8-bit byte varargs not added correctly", arg1 + arg2,
lib.addVarArgs("cc", arg1, arg2));
}
public void testShortVarArgs() {
short arg1 = 1;
short arg2 = 2;
assertEquals("16-bit integer varargs not added correctly", arg1 + arg2,
lib.addVarArgs("ss", arg1, arg2));
}
public void testLongVarArgs() {
long arg1 = 1;
long arg2 = 2;
assertEquals("64-bit integer varargs not added correctly", arg1 + arg2,
lib.addVarArgs("ll", arg1, arg2));
}
public void testFloatVarArgs() {
float arg1 = 1;
float arg2 = 2;
assertEquals("float varargs not added correctly", (int)arg1 + (int)arg2,
lib.addVarArgs("ff", arg1, arg2));
}
public void testDoubleVarArgs() {
double arg1 = 1;
double arg2 = 2;
assertEquals("double varargs not added correctly", (int)arg1 + (int)arg2,
lib.addVarArgs("gg", arg1, arg2));
}
public void testStringVarArgs() {
Object[] args = new Object[] { "Test" };
assertEquals("Did not return correct string", args[0],
lib.returnStringVarArgs("", args));
}
public void testStringVarArgsFull() {
Object[] args = new Object[] { "Test" };
assertEquals("Did not return correct string", args[0],
lib.returnStringVarArgs2("", "Test"));
}
public void testSeveralFixedAndVarArgs() {
int fixedarg1 = 1;
int fixedarg2 = 2;
int fixedarg3 = 3;
int fixedarg4 = 4;
int vararg1 = 100;
int vararg2 = 200;
int expected = fixedarg1 + fixedarg2 + fixedarg3 + fixedarg4 + vararg1 + vararg2;
int result = lib.addSeveralFixedArgsAndVarArgs(fixedarg1, fixedarg2, fixedarg3, fixedarg4,
2, vararg1, vararg2);
assertEquals("varargs not passed correctly with multiple fixed args",
expected, result);
}
public void testAppendNullToVarargs() {
Number[] args = new Number[] { Integer.valueOf(1) };
assertEquals("No trailing NULL was appended to varargs list",
1, lib.addVarArgs("dd", args));
}
public void testModifyStructureInVarargs() {
TestStructure arg1 = new TestStructure();
TestStructure[] varargs = new TestStructure[] { new TestStructure() };
lib.modifyStructureVarArgs("ss", arg1, varargs[0]);
assertEquals("Structure memory not read in fixed arg w/varargs",
MAGIC32, arg1.magic);
assertEquals("Structure memory not read in varargs",
MAGIC32, varargs[0].magic);
}
public static void main(String[] args) {
junit.textui.TestRunner.run(VarArgsTest.class);
}
}
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