Function TestCompress4XReuseActually

huff0/compress_test.go:433–469

(t *testing.T)

}

func TestCompress4XReuseActually(t *testing.T) {
	rng := rand.NewSource(0x1337)
	var s Scratch
	s.Reuse = ReusePolicyAllow
	for i := range 255 {
		if testing.Short() && i > 10 {
			break
		}
		t.Run(fmt.Sprint("test-", i), func(t *testing.T) {
			buf0 := make([]byte, BlockSizeMax)
			for j := range buf0 {
				buf0[j] = byte(rng.Int63() & 7)
			}

			tbSz, dSz, reSz, _ := EstimateSizes(buf0, &s)
			b, re, err := Compress4X(buf0, &s)
			if err != nil {
				t.Fatal(err)
			}
			if b == nil {
				t.Error("got no output")
				return
			}
			if len(s.OutData) == 0 {
				t.Error("got no data output")
			}
			if re && i == 0 {
				t.Error("Claimed to have re-used on first loop.")
			}
			if !re && i > 0 {
				t.Error("Expected table to be reused")
			}
			t.Logf("Estimate: table %d, got %d, data %d, got %d, reuse: %d", tbSz, len(s.OutTable), dSz, len(s.OutData), reSz)
			t.Logf("%s: %d -> %d bytes (%.2f:1) %t (table: %d bytes)", t.Name(), len(buf0), len(b), float64(len(buf0))/float64(len(b)), re, len(s.OutTable))
		})
	}
}
func TestCompress1XReuse(t *testing.T) {
	for _, test := range testfiles {
		t.Run(test.name, func(t *testing.T) {