// Run roundtrip tests from Brotli repository
func TestRoundtrip(T *testing.T) {
inputs := []string{
"testdata/alice29.txt",
"testdata/asyoulik.txt",
"testdata/lcet10.txt",
"testdata/plrabn12.txt",
"enc/encode.cc",
"shared/dictionary.h",
"dec/decode.c",
}
for _, file := range inputs {
input, err := ioutil.ReadFile(file)
if err != nil {
T.Error(err)
}
for _, quality := range []int{1, 6, 9, 11} {
T.Logf("Roundtrip testing %s at quality %d", file, quality)
params := enc.NewBrotliParams()
params.SetQuality(quality)
bro, err := enc.CompressBuffer(params, input, nil)
if err != nil {
T.Error(err)
}
T.Logf(" Compressed from %d to %d bytes, %.1f%%", len(input), len(bro), (float32(len(bro))/float32(len(input)))*100)
unbro, err := dec.DecompressBuffer(bro, nil)
if err != nil {
T.Error(err)
}
if len(input) != len(unbro) {
T.Errorf("Length of decompressed output (%d) doesn't match input (%d)", len(unbro), len(input))
}
if !bytes.Equal(input, unbro) {
T.Error(" Input does not match decompressed output")
}
}
}
}
func testCompress(s []byte, T *testing.T) {
T.Logf("Compressing: %s\n", s)
params := enc.NewBrotliParams()
buffer1 := make([]byte, len(s)*2)
encoded, cerr := enc.CompressBuffer(params, s, buffer1)
if cerr != nil {
T.Error(cerr)
}
buffer2 := make([]byte, len(s))
decoded, derr := dec.DecompressBuffer(encoded, buffer2)
if derr != nil {
T.Error(derr)
}
if !bytes.Equal(s, decoded) {
T.Logf("Decompressed: %s\n", decoded)
T.Error("Decoded output does not match original input")
}
}