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package zstd
import (
"bytes"
"encoding/json"
"io"
"os"
"strings"
"testing"
)
func TestHeader_Decode(t *testing.T) {
zr := testCreateZipReader("testdata/headers.zip", t)
// Regenerate golden data...
const regen = false
golden := make(map[string]Header)
if !regen {
b, err := os.ReadFile("testdata/headers-want.json.zst")
if err != nil {
t.Fatal(err)
}
dec, err := NewReader(nil)
if err != nil {
t.Fatal(err)
}
defer dec.Close()
b, err = dec.DecodeAll(b, nil)
if err != nil {
t.Fatal(err)
}
err = json.Unmarshal(b, &golden)
if err != nil {
t.Fatal(err)
}
}
for i, tt := range zr.File {
if !strings.HasSuffix(t.Name(), "") {
continue
}
if testing.Short() && i > 100 {
break
}
t.Run(tt.Name, func(t *testing.T) {
r, err := tt.Open()
if err != nil {
t.Error(err)
return
}
defer r.Close()
b, err := io.ReadAll(r)
if err != nil {
t.Error(err)
return
}
want, ok := golden[tt.Name]
var got Header
err = got.Decode(b)
if err != nil {
if ok {
t.Errorf("got unexpected error %v", err)
}
return
}
if regen {
// errored entries are not set
golden[tt.Name] = got
return
}
if !ok {
t.Errorf("want error, got result: %v", got)
}
if want != got {
t.Errorf("header mismatch:\nwant %#v\ngot %#v", want, got)
}
})
}
if regen {
w, err := os.Create("testdata/headers-want.json.zst")
if err != nil {
t.Fatal(err)
}
defer w.Close()
enc, err := NewWriter(w, WithEncoderLevel(SpeedBestCompression))
if err != nil {
t.Fatal(err)
}
b, err := json.Marshal(golden)
if err != nil {
t.Fatal(err)
}
enc.ReadFrom(bytes.NewBuffer(b))
enc.Close()
t.SkipNow()
}
}
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