Function TestEncoder_SmallDict

zstd/dict_test.go:148–286

(t *testing.T)

}

func TestEncoder_SmallDict(t *testing.T) {
	// All files have CRC
	zr := testCreateZipReader("testdata/dict-tests-small.zip", t)
	var dicts [][]byte
	var encs []*Encoder
	var noDictEncs []*Encoder
	var encNames []string

	for _, tt := range zr.File {
		if !strings.HasSuffix(tt.Name, ".dict") {
			continue
		}
		func() {
			r, err := tt.Open()
			if err != nil {
				t.Fatal(err)
			}
			defer r.Close()
			in, err := io.ReadAll(r)
			if err != nil {
				t.Fatal(err)
			}
			dicts = append(dicts, in)
			for level := SpeedFastest; level < speedLast; level++ {
				if isRaceTest && level >= SpeedBestCompression {
					break
				}
				enc, err := NewWriter(nil, WithEncoderConcurrency(1), WithEncoderDict(in), WithEncoderLevel(level), WithWindowSize(1<<17))
				if err != nil {
					t.Fatal(err)
				}
				encs = append(encs, enc)
				encNames = append(encNames, fmt.Sprint("level-", level.String(), "-dict-", len(dicts)))

				enc, err = NewWriter(nil, WithEncoderConcurrency(1), WithEncoderLevel(level), WithWindowSize(1<<17))
				if err != nil {
					t.Fatal(err)
				}
				noDictEncs = append(noDictEncs, enc)
			}
		}()
	}
	dec, err := NewReader(nil, WithDecoderConcurrency(1), WithDecoderDicts(dicts...))
	if err != nil {
		t.Fatal(err)
		return
	}
	defer dec.Close()
	for i, tt := range zr.File {
		if testing.Short() && i > 100 {
			break
		}
		if !strings.HasSuffix(tt.Name, ".zst") {
			continue
		}
		r, err := tt.Open()
		if err != nil {
			t.Fatal(err)