public void TestDecode()
{
Bitmap bm = GetBitmapFromResource("Libdmtx.TestImages.Test001.png");
DecodeOptions opt = new DecodeOptions();
DmtxDecoded[] decodeResults = Dmtx.Decode(bm, opt);
Assert.AreEqual(1, decodeResults.Length);
string data = Encoding.ASCII.GetString(decodeResults[0].Data).TrimEnd('\0');
Assert.AreEqual("Test", data);
}
public void TestDecodeWithCallback()
{
List <DmtxDecoded> decodeResults = new List <DmtxDecoded>();
Bitmap bm = GetBitmapFromResource("Libdmtx.TestImages.Test002.png");
DecodeOptions opt = new DecodeOptions();
Dmtx.Decode(bm, opt, d => decodeResults.Add(d));
Assert.AreEqual(2, decodeResults.Count);
string data1 = Encoding.ASCII.GetString(decodeResults[0].Data).TrimEnd('\0');
Assert.AreEqual("Test1", data1);
string data2 = Encoding.ASCII.GetString(decodeResults[1].Data).TrimEnd('\0');
Assert.AreEqual("Test2", data2);
}
public void TestDecodeWithCallbackThrowException()
{
Bitmap bm = GetBitmapFromResource("Libdmtx.TestImages.Test002.png");
DecodeOptions opt = new DecodeOptions();
int callCount = 0;
try {
Dmtx.Decode(bm, opt, d => {
callCount++;
throw new Exception("Test Exception");
});
Assert.Fail("Should have gotten an exception.");
} catch (Exception ex) {
Assert.AreEqual(1, callCount);
Assert.AreEqual("Test Exception", ex.Message);
}
}
public void TestStrideAndPadding()
{
EncodeOptions encodeOptions = new EncodeOptions {
MarginSize = 2,
ModuleSize = 2
};
DmtxEncoded encoded = Dmtx.Encode(Encoding.ASCII.GetBytes("t"), encodeOptions);
Bitmap bm = encoded.Bitmap;
// make sure we have an image who's stride is not divisable by 3
int stride;
ExecuteBitmapToByteArray(bm, out stride);
if (stride % 3 == 0)
{
bm = BitmapIncreaseCanvas(bm, bm.Width + 1, bm.Height, Color.White);
ExecuteBitmapToByteArray(bm, out stride);
}
Assert.AreNotEqual(0, stride % 3, "Stride was divisable by 3 which doesn't make a very good test");
DecodeOptions opt = new DecodeOptions();
Bitmap diagnoseImage;
DmtxDecoded[] decodedImages = Dmtx.Decode(bm, opt, DiagnosticImageStyles.Default, out diagnoseImage);
//diagnoseImage.Save("c:/temp/diagnose.bmp", ImageFormat.Bmp);
Assert.AreEqual(24.0, diagnoseImage.Width, 1.0);
Assert.AreEqual(24.0, diagnoseImage.Height, 1.0);
Assert.AreEqual(1, decodedImages.Length, "Didn't find barcode");
// make sure the left line is straight up and down (not skewed)
for (int y = 4; y < diagnoseImage.Height - 4; y++)
{
Color clrLeft = diagnoseImage.GetPixel(1, y);
Color clrRight = diagnoseImage.GetPixel(3, y);
Assert.AreEqual(1.0, clrLeft.GetBrightness(), 0.01, "at location [1, " + y + "]");
Assert.AreEqual(0.698, clrRight.GetBrightness(), 0.01, "at location [3, " + y + "]");
}
}