public void ExtractTest(string msg, string bitmapName)
{
var stegoBitmapPath = BitmapsDir + bitmapName + StegoSuffix + BitmapExt;
var pixels = Stego.ReadBitmap(stegoBitmapPath);
var expectedMsgBytes = Stego.Extract(pixels, msg.Length);
var actualMsgBytes = new byte[msg.Length];
Extract(pixels, actualMsgBytes, msg.Length);
CollectionAssert.AreEqual(expectedMsgBytes, actualMsgBytes);
}
public void EmbedTest(string msg, string bitmapName)
{
var msgBytes = Encoding.ASCII.GetBytes(msg);
var bitmapPath = BitmapsDir + bitmapName + BitmapExt;
var stegoBitmapPath = BitmapsDir + bitmapName + StegoSuffix + BitmapExt;
var pixels = Stego.ReadBitmap(bitmapPath);
var expectedPixels = Stego.Embed(pixels, msgBytes);
Stego.WriteBitmap(expectedPixels, bitmapPath, stegoBitmapPath);
Embed(pixels, msgBytes, msgBytes.Length);
CollectionAssert.AreEqual(expectedPixels, pixels);
}
