public void testDecodeTooManyErrors()
{
var matrix = BitMatrix.parse(""
+ "X X . X . . . X X . . . X . . X X X . X . X X X X X . \n"
+ "X X . . X X . . . . . X X . . . X X . . . X . X . . X \n"
+ "X . . . X X . . X X X . X X . X X X X . X X . . X . . \n"
+ ". . . . X . X X . . X X . X X . X . X X X X . X . . X \n"
+ "X X X . . X X X X X . . . . . X X . . . X . X . X . X \n"
+ "X X . . . . . . . . X . . . X . X X X . X . . X . . . \n"
+ "X X . . X . . . . . X X . . . . . X . . . . X . . X X \n"
+ ". . . X . X . X . . . . . X X X X X X . . . . . . X X \n"
+ "X . . . X . X X X X X X . . X X X . X . X X X X X X . \n"
+ "X . . X X X . X X X X X X X X X X X X X . . . X . X X \n"
+ ". . . . X X . . . X . . . . . . . X X . . . X X . X . \n"
+ ". . . X X X . . X X . X X X X X . X . . X . . . . . . \n"
+ "X . . . . X . X . X . X . . . X . X . X X . X X . X X \n"
+ "X . X . . X . X . X . X . X . X . X . . . . . X . X X \n"
+ "X . X X X . . X . X . X . . . X . X . X X X . . . X X \n"
+ "X X X X X X X X . X . X X X X X . X . X . X . X X X . \n"
+ ". . . . . . . X . X . . . . . . . X X X X . . . X X X \n"
+ "X X . . X . . X . X X X X X X X X X X X X X . . X . X \n"
+ "X X X . X X X X . . X X X X . . X . . . . X . . X X X \n"
+ ". . . . X . X X X . . . . X X X X . . X X X X . . . . \n"
+ ". . X . . X . X . . . X . X X . X X . X . . . X . X . \n"
+ "X X . . X . . X X X X X X X . . X . X X X X X X X . . \n"
+ "X . X X . . X X . . . . . X . . . . . . X X . X X X . \n"
+ "X . . X X . . X X . X . X . . . . X . X . . X . . X . \n"
+ "X . X . X . . X . X X X X X X X X . X X X X . . X X . \n"
+ "X X X X . . . X . . X X X . X X . . X . . . . X X X . \n"
+ "X X . X . X . . . X . X . . . . X X . X . . X X . . . \n",
"X ", ". ");
var r = new AztecDetectorResult(matrix, NO_POINTS, true, 16, 4);
Assert.That(new Decoder().decode(r), Is.Null);
}
public void testAztecResultECI()
{
BitMatrix matrix = BitMatrix.parse(
" X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
" X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X \n" +
"X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X \n" +
" X X X X X X X X X X X X X \n" +
" X X X \n" +
"X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X \n" +
" X X X X X X X X X X X \n" +
"X X X X X X X X \n",
"X ", " ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, false, 15, 1);
DecoderResult result = new Decoder().decode(r);
Assert.AreEqual("Français", result.Text);
}
private static void testWriter(String data,
Encoding encoding,
int eccPercent,
bool compact,
int layers,
bool disableEci)
{
// Perform an encode-decode round-trip because it can be lossy.
var hints = new Dictionary <EncodeHintType, Object>()
;
if (encoding != null)
{
hints[EncodeHintType.CHARACTER_SET] = encoding.WebName.ToUpper();
}
if (disableEci)
{
hints[EncodeHintType.DISABLE_ECI] = true;
}
hints[EncodeHintType.ERROR_CORRECTION] = eccPercent;
var writer = new AztecWriter();
var matrix = writer.encode(data, BarcodeFormat.AZTEC, 0, 0, hints);
var aztec = Internal.Encoder.encode(data, eccPercent, Internal.Encoder.DEFAULT_AZTEC_LAYERS, encoding, disableEci);
Assert.AreEqual(compact, aztec.isCompact, "Unexpected symbol format (compact)");
Assert.AreEqual(layers, aztec.Layers, "Unexpected nr. of layers");
var matrix2 = aztec.Matrix;
Assert.AreEqual(matrix, matrix2);
var r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
var res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
// Check error correction by introducing up to eccPercent/2 errors
int ecWords = aztec.CodeWords * eccPercent / 100 / 2;
var random = getPseudoRandom();
for (int i = 0; i < ecWords; i++)
{
// don't touch the core
int x = random.Next(1) > 0
? random.Next(aztec.Layers * 2)
: matrix.Width - 1 - random.Next(aztec.Layers * 2);
int y = random.Next(1) > 0
? random.Next(aztec.Layers * 2)
: matrix.Height - 1 - random.Next(aztec.Layers * 2);
matrix.flip(x, y);
}
r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
}
private static void testWriter(String data,
String charset,
int eccPercent,
bool compact,
int layers)
{
// 1. Perform an encode-decode round-trip because it can be lossy.
// 2. Aztec Decoder currently always decodes the data with a LATIN-1 charset:
var byteData = Encoding.GetEncoding(charset).GetBytes(data);
var expectedData = LATIN_1.GetString(byteData, 0, byteData.Length);
var hints = new Dictionary <EncodeHintType, Object>()
;
hints[EncodeHintType.CHARACTER_SET] = charset;
hints[EncodeHintType.ERROR_CORRECTION] = eccPercent;
var writer = new AztecWriter();
var matrix = writer.encode(data, BarcodeFormat.AZTEC, 0, 0, hints);
var aztec = Internal.Encoder.encode(Encoding.GetEncoding(charset).GetBytes(data), eccPercent, Internal.Encoder.DEFAULT_AZTEC_LAYERS);
Assert.AreEqual(compact, aztec.isCompact, "Unexpected symbol format (compact)");
Assert.AreEqual(layers, aztec.Layers, "Unexpected nr. of layers");
var matrix2 = aztec.Matrix;
Assert.AreEqual(matrix, matrix2);
var r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
var res = new Internal.Decoder().decode(r);
Assert.AreEqual(expectedData, res.Text);
// Check error correction by introducing up to eccPercent/2 errors
int ecWords = aztec.CodeWords * eccPercent / 100 / 2;
var random = getPseudoRandom();
for (int i = 0; i < ecWords; i++)
{
// don't touch the core
int x = random.Next(1) > 0
? random.Next(aztec.Layers * 2)
: matrix.Width - 1 - random.Next(aztec.Layers * 2);
int y = random.Next(1) > 0
? random.Next(aztec.Layers * 2)
: matrix.Height - 1 - random.Next(aztec.Layers * 2);
matrix.flip(x, y);
}
r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
res = new Internal.Decoder().decode(r);
Assert.AreEqual(expectedData, res.Text);
}
public void testAztecResult()
{
BitMatrix matrix = BitMatrix.parse(
"X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X X \n" +
" X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X X \n" +
" X X X X X X X X \n" +
" X X X X X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X \n" +
"X X X X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X \n" +
"X X X X X X X X X X X X X X \n" +
" X X X X X X X X X X X X X \n",
"X ", " ");
AztecDetectorResult r = new AztecDetectorResult(matrix, NO_POINTS, false, 30, 2);
DecoderResult result = new Decoder().decode(r);
Assert.AreEqual("88888TTTTTTTTTTTTTTTTTTTTTTTTTTTTTT", result.Text);
Assert.AreEqual(
new byte[]
{
245, 85, 85, 117, 107, 90, 214, 181, 173, 107,
90, 214, 181, 173, 107, 90, 214, 181, 173, 107,
90, 214, 176
},
result.RawBytes);
Assert.AreEqual(180, result.NumBits);
}
private static void testEncodeDecode(String data, bool compact, int layers)
{
AztecCode aztec = Internal.Encoder.encode(LATIN_1.GetBytes(data), 25);
Assert.AreEqual(compact, aztec.isCompact, "Unexpected symbol format (compact)");
Assert.AreEqual(layers, aztec.Layers, "Unexpected nr. of layers");
BitMatrix matrix = aztec.Matrix;
AztecDetectorResult r =
new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
DecoderResult res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
// Check error correction by introducing a few minor errors
Random random = getPseudoRandom();
matrix.flip(random.Next(matrix.Width), random.Next(2));
matrix.flip(random.Next(matrix.Width), matrix.Height - 2 + random.Next(2));
matrix.flip(random.Next(2), random.Next(matrix.Height));
matrix.flip(matrix.Width - 2 + random.Next(2), random.Next(matrix.Height));
r = new AztecDetectorResult(matrix, NO_POINTS, aztec.isCompact, aztec.CodeWords, aztec.Layers);
res = new Internal.Decoder().decode(r);
Assert.AreEqual(data, res.Text);
}
