public void testCustomStringEncoding() throws Exception {
final String ENCODING = System.getProperty("file.encoding");
// Keep stuff within the extended ASCII range so we work with more
// limited native encodings
String UNICODE = "Un \u00e9l\u00e9ment gr\u00e2ce \u00e0 l'index";
if (!UNICODE.equals(new String(UNICODE.getBytes()))) {
// If the extended characters aren't encodable in the default
// encoding, punt and use straight ASCII
UNICODE = "";
for (char ch = 1; ch < 128; ch++) {
UNICODE += ch;
}
}
final String UNICODEZ = UNICODE + "\0more stuff";
byte[] customEncoded = Native.getBytes(UNICODE, ENCODING);
byte[] expected = UNICODE.getBytes(ENCODING);
for (int i = 0; i < Math.min(customEncoded.length, expected.length); i++) {
assertEquals(
"Improperly encoded (" + ENCODING + ") from Java at " + i, expected[i], customEncoded[i]);
}
assertEquals(
"Wrong number of encoded characters (" + ENCODING + ")",
expected.length,
customEncoded.length);
String result = Native.toString(customEncoded, ENCODING);
assertEquals("Improperly decoded from native bytes (" + ENCODING + ")", UNICODE, result);
assertEquals(
"Should truncate bytes at NUL terminator",
UNICODE,
Native.toString(UNICODEZ.getBytes(ENCODING), ENCODING));
}
public void testDefaultStringEncoding() throws Exception {
final String UNICODE = "\u0444\u043b\u0441\u0432\u0443";
final String UNICODEZ = UNICODE + "\0more stuff";
byte[] utf8 = Native.getBytes(UNICODE);
byte[] expected = UNICODE.getBytes(Native.DEFAULT_ENCODING);
for (int i = 0; i < Math.min(utf8.length, expected.length); i++) {
assertEquals("Improperly encoded at " + i, expected[i], utf8[i]);
}
assertEquals("Wrong number of encoded characters", expected.length, utf8.length);
String result = Native.toString(utf8);
assertEquals("Improperly decoded", UNICODE, result);
assertEquals(
"Should truncate bytes at NUL terminator",
UNICODE,
Native.toString(UNICODEZ.getBytes(Native.DEFAULT_ENCODING)));
}
@Nullable
public static String toStringViaUTF8(ID cfString) {
if (cfString.intValue() == 0) return null;
int lengthInChars = myFoundationLibrary.CFStringGetLength(cfString);
int potentialLengthInBytes = 3 * lengthInChars + 1; // UTF8 fully escaped 16 bit chars, plus nul
byte[] buffer = new byte[potentialLengthInBytes];
byte ok =
myFoundationLibrary.CFStringGetCString(
cfString, buffer, buffer.length, FoundationLibrary.kCFStringEncodingUTF8);
if (ok == 0) throw new RuntimeException("Could not convert string");
return Native.toString(buffer);
}
public void testWideStringConversion() {
char[] buf = (getName() + NUL).toCharArray();
assertEquals("Wide C string improperly converted", getName(), Native.toString(buf));
}
public void testStringConversionWithEncoding() throws Exception {
byte[] buf = (getName() + UNICODE + NUL).getBytes("utf8");
assertEquals(
"Encoded C string improperly converted", getName() + UNICODE, Native.toString(buf, "utf8"));
}
public void testStringConversion() {
byte[] buf = (getName() + NUL).getBytes();
assertEquals("C string improperly converted", getName(), Native.toString(buf));
}
public void testByteArrayToString() {
byte[] buf = {'a', 'b', 'c', '\0', 'd', 'e'};
assertEquals("Wrong String generated", "abc", Native.toString(buf));
}