package mtf import ( diff "0dev.org/diff" "bytes" "io" "testing" ) func TestMTF(t *testing.T) { var ( data []byte = []byte{1, 1, 0, 0} input *bytes.Reader = bytes.NewReader(data) encoder io.Reader = Encoder(input) decoder io.Reader = Decoder(encoder) output bytes.Buffer ) io.Copy(&output, decoder) processed := output.Bytes() delta := diff.Diff(diff.D{Len1: len(data), Len2: len(processed), EqualFunc: func(i, j int) bool { return data[i] == processed[j] }}) if len(delta.Added) > 0 || len(delta.Removed) > 0 { t.Error("Differences detected ", delta, processed) } }