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CoreFoundationTest.java
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CoreFoundationTest.java
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/*
* Copyright (c) 2019 Daniel Widdis
*
* 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.platform.mac;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import org.junit.Test;
import com.sun.jna.Memory;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.platform.mac.CoreFoundation.CFAllocatorRef;
import com.sun.jna.platform.mac.CoreFoundation.CFArrayRef;
import com.sun.jna.platform.mac.CoreFoundation.CFDataRef;
import com.sun.jna.platform.mac.CoreFoundation.CFIndex;
import com.sun.jna.platform.mac.CoreFoundation.CFMutableDictionaryRef;
import com.sun.jna.platform.mac.CoreFoundation.CFNumberRef;
import com.sun.jna.platform.mac.CoreFoundation.CFNumberType;
import com.sun.jna.platform.mac.CoreFoundation.CFStringRef;
import com.sun.jna.platform.mac.CoreFoundation.CFTypeRef;
import com.sun.jna.ptr.DoubleByReference;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.LongByReference;
import com.sun.jna.ptr.PointerByReference;
public class CoreFoundationTest {
private static final CoreFoundation CF = CoreFoundation.INSTANCE;
@Test
public void testCFStringRef() throws UnsupportedEncodingException {
// Generate strings with different UTF8 byte lengths
byte[] pound = { (byte) 0xc2, (byte) 0xa3 };
byte[] euro = { (byte) 0xe2, (byte) 0x82, (byte) 0xac };
byte[] smileEmoji = { (byte) 0xf0, (byte) 0x9f, (byte) 0x98, (byte) 0x83 };
String[] testStrings = new String[4];
testStrings[0] = "ascii";
testStrings[1] = new String(pound, StandardCharsets.UTF_8);
testStrings[2] = new String(euro, StandardCharsets.UTF_8);
testStrings[3] = new String(smileEmoji, StandardCharsets.UTF_8);
for (String utf8Str : testStrings) {
CFStringRef cfStr = CFStringRef.createCFString(utf8Str);
// Length matches length of char array
// 2 for code points > 0xffff, 1 otherwise
assertEquals(utf8Str.length(), CF.CFStringGetLength(cfStr).intValue());
assertEquals(utf8Str, cfStr.stringValue());
assertEquals(CoreFoundation.STRING_TYPE_ID, cfStr.getTypeID());
byte[] utf8Arr = utf8Str.getBytes("UTF-8");
Memory mem = new Memory(utf8Arr.length + 1);
mem.clear();
assertNotEquals(0,
CF.CFStringGetCString(cfStr, mem, new CFIndex(mem.size()), CoreFoundation.kCFStringEncodingUTF8));
byte[] utf8Bytes = mem.getByteArray(0, (int) mem.size() - 1);
assertArrayEquals(utf8Arr, utf8Bytes);
// Essentially a toString, can't rely on format but should contain the string
CFStringRef desc = CF.CFCopyDescription(cfStr);
assertTrue(desc.stringValue().contains(utf8Str));
desc.release();
cfStr.release();
}
CFStringRef cfEmpty = CFStringRef.createCFString("");
assertTrue(cfEmpty.stringValue().equals(""));
cfEmpty.release();
}
@Test
public void testCFNumberRef() {
LongByReference max = new LongByReference(Long.MAX_VALUE);
CFNumberRef cfMax = CF.CFNumberCreate(null, CFNumberType.kCFNumberLongLongType.typeIndex(), max);
assertEquals(Long.MAX_VALUE, cfMax.longValue());
assertEquals(CoreFoundation.NUMBER_TYPE_ID, cfMax.getTypeID());
cfMax.release();
IntByReference zero = new IntByReference(0);
IntByReference one = new IntByReference(1);
CFNumberRef cfZero = CF.CFNumberCreate(null, CFNumberType.kCFNumberIntType.typeIndex(), zero);
CFNumberRef cfOne = CF.CFNumberCreate(null, CFNumberType.kCFNumberIntType.typeIndex(), one);
assertEquals(0, cfZero.intValue());
assertEquals(1, cfOne.intValue());
cfZero.release();
cfOne.release();
}
@Test
public void testCFRetainCount() {
DoubleByReference pi = new DoubleByReference(Math.PI);
DoubleByReference e = new DoubleByReference(Math.E);
CFNumberRef cfE = CF.CFNumberCreate(null, CFNumberType.kCFNumberDoubleType.typeIndex(), e);
CFNumberRef cfPi = CF.CFNumberCreate(null, CFNumberType.kCFNumberDoubleType.typeIndex(), pi);
assertEquals(1, CF.CFGetRetainCount(cfE).intValue());
assertEquals(1, CF.CFGetRetainCount(cfPi).intValue());
cfE.retain();
cfPi.retain();
cfPi.retain();
assertEquals(2, CF.CFGetRetainCount(cfE).intValue());
assertEquals(3, CF.CFGetRetainCount(cfPi).intValue());
List<? extends CFTypeRef> irrationalReferences = Arrays.asList(cfE, cfPi);
for (CFTypeRef value : irrationalReferences) {
value.release();
}
assertEquals(1, CF.CFGetRetainCount(cfE).intValue());
assertEquals(2, CF.CFGetRetainCount(cfPi).intValue());
cfPi.release();
assertEquals(1, CF.CFGetRetainCount(cfPi).intValue());
cfE.release();
cfPi.release();
}
@Test
public void testCFArray() {
CFNumberRef[] refArray = new CFNumberRef[3];
int size = Native.getNativeSize(CFNumberRef.class);
Memory contiguousArray = new Memory(size * refArray.length);
for (int i = 0; i < refArray.length; i++) {
refArray[i] = CF.CFNumberCreate(null, CoreFoundation.CFNumberType.kCFNumberIntType.typeIndex(),
new IntByReference(i));
contiguousArray.setPointer(i * size, refArray[i].getPointer());
}
CFArrayRef cfPtrArray = CF.CFArrayCreate(null, contiguousArray, new CFIndex(refArray.length), null);
assertEquals(CoreFoundation.ARRAY_TYPE_ID, cfPtrArray.getTypeID());
assertEquals(refArray.length, cfPtrArray.getCount());
for (int i = 0; i < refArray.length; i++) {
Pointer result = cfPtrArray.getValueAtIndex(i);
try {
new CFStringRef(result);
fail("Should have thrown a ClassCastExcpetion.");
} catch (ClassCastException expected) {
assertEquals("Unable to cast to CFString. Type ID: CFNumber", expected.getMessage());
}
CFNumberRef numRef = new CFNumberRef(result);
assertEquals(i, numRef.intValue());
}
for (int i = 0; i < refArray.length; i++) {
refArray[i].release();
}
cfPtrArray.release();
}
@Test
public void testCFData() {
int size = 128;
// Create some random bytes
byte[] randomBytes = new byte[size];
new Random().nextBytes(randomBytes);
// Fill native memory with them
Memory nativeBytes = new Memory(size);
nativeBytes.write(0, randomBytes, 0, randomBytes.length);
// Create a CF reference to the data
CFDataRef cfData = CF.CFDataCreate(null, nativeBytes, new CFIndex(size));
assertEquals(CoreFoundation.DATA_TYPE_ID, cfData.getTypeID());
int dataSize = cfData.getLength();
assertEquals(size, dataSize);
// Read it back out and convert to an array
Pointer bytes = cfData.getBytePtr();
byte[] dataBytes = bytes.getByteArray(0, dataSize);
assertArrayEquals(randomBytes, dataBytes);
cfData.release();
}
@Test
public void testCFDictionary() {
CFAllocatorRef alloc = CF.CFAllocatorGetDefault();
CFMutableDictionaryRef dict = CF.CFDictionaryCreateMutable(alloc, new CFIndex(2), null, null);
assertEquals(CoreFoundation.DICTIONARY_TYPE_ID, dict.getTypeID());
CFStringRef oneStr = CFStringRef.createCFString("one");
// Key does not exist, returns null
assertEquals(0L, dict.getCount());
assertFalse(dict.getValueIfPresent(oneStr, null));
Pointer cfNull = dict.getValue(oneStr);
assertNull(cfNull);
// Store and retrieve null value
dict.setValue(oneStr, null);
assertTrue(dict.getValueIfPresent(oneStr, null));
Pointer cfNullValue = dict.getValue(oneStr);
assertNull(cfNullValue);
// Store (replace the null) and retrieve integer value
IntByReference one = new IntByReference(1);
CFNumberRef cfOne = CF.CFNumberCreate(null, CFNumberType.kCFNumberIntType.typeIndex(), one);
dict.setValue(oneStr, cfOne);
assertEquals(1L, dict.getCount());
assertTrue(dict.getValueIfPresent(oneStr, null));
Pointer result = dict.getValue(oneStr);
CFNumberRef numRef = new CFNumberRef(result);
assertEquals(1, numRef.intValue());
PointerByReference resultPtr = new PointerByReference();
assertTrue(dict.getValueIfPresent(oneStr, resultPtr));
numRef = new CFNumberRef(resultPtr.getValue());
assertEquals(1, numRef.intValue());
// Test non-CF type as key
IntByReference onePtr = new IntByReference(1);
dict.setValue(onePtr, oneStr);
result = dict.getValue(onePtr);
CFStringRef strRef = new CFStringRef(result);
assertEquals("one", strRef.stringValue());
assertEquals(2L, dict.getCount());
oneStr.release();
cfOne.release();
dict.release();
}
}