route/vendor/github.com/ulikunitz/xz/lzma/decoder_test.go

60 lines
1.3 KiB
Go
Raw Normal View History

2017-12-02 23:34:35 +00:00
// Copyright 2014-2017 Ulrich Kunitz. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package lzma
import (
"bufio"
"io"
"io/ioutil"
"os"
"testing"
)
func TestDecoder(t *testing.T) {
filename := "fox.lzma"
want := "The quick brown fox jumps over the lazy dog.\n"
for i := 0; i < 2; i++ {
f, err := os.Open(filename)
if err != nil {
t.Fatalf("os.Open(%q) error %s", filename, err)
}
p := make([]byte, 13)
_, err = io.ReadFull(f, p)
if err != nil {
t.Fatalf("io.ReadFull error %s", err)
}
props, err := PropertiesForCode(p[0])
if err != nil {
t.Fatalf("p[0] error %s", err)
}
state := newState(props)
const capacity = 0x800000
dict, err := newDecoderDict(capacity)
if err != nil {
t.Fatalf("newDecoderDict: error %s", err)
}
size := int64(-1)
if i > 0 {
size = int64(len(want))
}
br := bufio.NewReader(f)
r, err := newDecoder(br, state, dict, size)
if err != nil {
t.Fatalf("newDecoder error %s", err)
}
bytes, err := ioutil.ReadAll(r)
if err != nil {
t.Fatalf("[%d] ReadAll error %s", i, err)
}
if err = f.Close(); err != nil {
t.Fatalf("Close error %s", err)
}
got := string(bytes)
if got != want {
t.Fatalf("read %q; but want %q", got, want)
}
}
}