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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.Collections;
import java.util.List;
import junit.framework.TestCase;
//@SuppressWarnings("unused")
public class TypeMapperTest extends TestCase {
private static final String UNICODE = "[\0444]";
public static interface TestLibrary extends Library {
int returnInt32Argument(boolean b);
int returnInt32Argument(String s);
int returnInt32Argument(Number n);
WString returnWStringArgument(String s);
String returnWStringArgument(WString s);
}
public void testBooleanToIntArgumentConversion() {
final int MAGIC = 0xABEDCF23;
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(Boolean.class, new ToNativeConverter() {
@Override
public Object toNative(Object arg, ToNativeContext ctx) {
return Integer.valueOf(Boolean.TRUE.equals(arg) ? MAGIC : 0);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert Boolean argument to Int", MAGIC, lib.returnInt32Argument(true));
}
public void testStringToIntArgumentConversion() {
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(String.class, new ToNativeConverter() {
@Override
public Object toNative(Object arg, ToNativeContext ctx) {
return Integer.valueOf((String) arg, 16);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
final int MAGIC = 0x7BEDCF23;
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert String argument to Int", MAGIC,
lib.returnInt32Argument(Integer.toHexString(MAGIC)));
}
public void testStringToWStringArgumentConversion() {
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(String.class, new ToNativeConverter() {
@Override
public Object toNative(Object arg, ToNativeContext ctx) {
return new WString(arg.toString());
}
@Override
public Class<?> nativeType() {
return WString.class;
}
});
final String MAGIC = "magic" + UNICODE;
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert String argument to WString", new WString(MAGIC),
lib.returnWStringArgument(MAGIC));
}
public void testCharSequenceToIntArgumentConversion() {
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(CharSequence.class, new ToNativeConverter() {
@Override
public Object toNative(Object arg, ToNativeContext ctx) {
return Integer.valueOf(((CharSequence)arg).toString(), 16);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
final int MAGIC = 0x7BEDCF23;
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert String argument to Int", MAGIC, lib.returnInt32Argument(Integer.toHexString(MAGIC)));
}
public void testNumberToIntArgumentConversion() {
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(Double.class, new ToNativeConverter() {
@Override
public Object toNative(Object arg, ToNativeContext ctx) {
return Integer.valueOf(((Double)arg).intValue());
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
final int MAGIC = 0x7BEDCF23;
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert Double argument to Int", MAGIC,
lib.returnInt32Argument(Double.valueOf(MAGIC)));
}
public void testWStringToStringResultConversion() throws Exception {
final String MAGIC = "magic" + UNICODE;
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addFromNativeConverter(String.class, new FromNativeConverter() {
@Override
public Object fromNative(Object value, FromNativeContext ctx) {
if (value == null) {
return null;
}
return value.toString();
}
@Override
public Class<?> nativeType() {
return WString.class;
}
});
TestLibrary lib = Native.load("testlib", TestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert WString result to String", MAGIC, lib.returnWStringArgument(new WString(MAGIC)));
}
public static interface BooleanTestLibrary extends Library {
boolean returnInt32Argument(boolean b);
}
public void testIntegerToBooleanResultConversion() throws Exception {
final int MAGIC = 0xABEDCF23;
DefaultTypeMapper mapper = new DefaultTypeMapper();
mapper.addToNativeConverter(Boolean.class, new ToNativeConverter() {
@Override
public Object toNative(Object value, ToNativeContext ctx) {
return Integer.valueOf(Boolean.TRUE.equals(value) ? MAGIC : 0);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
mapper.addFromNativeConverter(Boolean.class, new FromNativeConverter() {
@Override
public Object fromNative(Object value, FromNativeContext context) {
return Boolean.valueOf(((Integer) value).intValue() == MAGIC);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
});
BooleanTestLibrary lib = Native.load("testlib", BooleanTestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Failed to convert integer return to boolean TRUE", true, lib.returnInt32Argument(true));
assertEquals("Failed to convert integer return to boolean FALSE", false, lib.returnInt32Argument(false));
}
public static interface StructureTestLibrary extends Library {
public static class TestStructure extends Structure {
public TestStructure(TypeMapper mapper) {
super(mapper);
}
public boolean data;
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("data");
}
}
}
public void testStructureConversion() throws Exception {
DefaultTypeMapper mapper = new DefaultTypeMapper();
TypeConverter converter = new TypeConverter() {
@Override
public Object toNative(Object value, ToNativeContext ctx) {
return Integer.valueOf(Boolean.TRUE.equals(value) ? 1 : 0);
}
@Override
public Object fromNative(Object value, FromNativeContext context) {
return Boolean.valueOf(((Integer)value).intValue() == 1);
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
};
mapper.addTypeConverter(Boolean.class, converter);
Native.load("testlib", StructureTestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
StructureTestLibrary.TestStructure s = new StructureTestLibrary.TestStructure(mapper);
assertEquals("Wrong native size", 4, s.size());
s.data = true;
s.write();
assertEquals("Wrong value written", 1, s.getPointer().getInt(0));
s.getPointer().setInt(0, 0);
s.read();
assertFalse("Wrong value read", s.data);
}
public static enum Enumeration {
STATUS_0(0), STATUS_1(1), STATUS_ERROR(-1);
private final int code;
Enumeration(int code) { this.code = code; }
public int getCode() { return code; }
public static Enumeration fromCode(int code) {
switch(code) {
case 0:
return STATUS_0;
case 1:
return STATUS_1;
default:
return STATUS_ERROR;
}
}
}
public static interface EnumerationTestLibrary extends Library {
Enumeration returnInt32Argument(Enumeration arg);
@Structure.FieldOrder({"field"})
class MinTestStructure extends Structure {
public Enumeration field;
}
MinTestStructure testStructurePointerArgument(MinTestStructure s);
}
public void testEnumConversion() throws Exception {
DefaultTypeMapper mapper = new DefaultTypeMapper();
TypeConverter converter = new TypeConverter() {
@Override
public Object toNative(Object value, ToNativeContext ctx) {
if(value == null) {
// NULL needs to be explicityl handled for size calculation
// in structure use
return Enumeration.STATUS_ERROR.getCode();
} else {
return ((Enumeration)value).getCode();
}
}
@Override
public Object fromNative(Object value, FromNativeContext context) {
return Enumeration.fromCode(((Integer)value));
}
@Override
public Class<?> nativeType() {
return Integer.class;
}
};
mapper.addTypeConverter(Enumeration.class, converter);
EnumerationTestLibrary lib = Native.load("testlib", EnumerationTestLibrary.class, Collections.singletonMap(Library.OPTION_TYPE_MAPPER, mapper));
assertEquals("Enumeration improperly converted", Enumeration.STATUS_0, lib.returnInt32Argument(Enumeration.STATUS_0));
assertEquals("Enumeration improperly converted", Enumeration.STATUS_1, lib.returnInt32Argument(Enumeration.STATUS_1));
EnumerationTestLibrary.MinTestStructure struct = new EnumerationTestLibrary.MinTestStructure();
struct.field = Enumeration.STATUS_0;
assertEquals("Enumeration in structure improperly converted", Enumeration.STATUS_0, lib.testStructurePointerArgument(struct).field);
struct.field = Enumeration.STATUS_1;
assertEquals("Enumeration in structure improperly converted", Enumeration.STATUS_1, lib.testStructurePointerArgument(struct).field);
}
public static void main(String[] args) {
junit.textui.TestRunner.run(TypeMapperTest.class);
}
}
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