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// Copyright (c) 2011 CZ.NIC z.s.p.o. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// blame: jnml, labs.nic.cz
package storage
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
)
func newfile(t *testing.T) (string, string, Accessor) {
dir, err := ioutil.TempDir("", "test-storage-")
if err != nil {
panic(err)
}
name := filepath.Join(dir, "test.tmp")
f, err := NewFile(name, os.O_CREATE|os.O_TRUNC|os.O_RDWR, 0666)
if err != nil {
t.Fatal("newfile", err)
}
return dir, name, f
}
func readfile(t *testing.T, name string) (b []byte) {
var err error
if b, err = ioutil.ReadFile(name); err != nil {
t.Fatal("readfile")
}
return
}
func newcache(t *testing.T) (dir, name string, c *Cache) {
dir, name, f := newfile(t)
var err error
if c, err = NewCache(f, 1<<20, nil); err != nil {
t.Fatal("newCache", err)
}
return
}
func TestCache0(t *testing.T) {
dir, name, c := newcache(t)
defer os.RemoveAll(dir)
if err := c.Close(); err != nil {
t.Fatal(10, err)
}
if b := readfile(t, name); len(b) != 0 {
t.Fatal(20, len(b), 0)
}
}
func TestCache1(t *testing.T) {
dir, name, c := newcache(t)
defer os.RemoveAll(dir)
if n, err := c.WriteAt([]byte{0xa5}, 0); n != 1 {
t.Fatal(20, n, err)
}
if err := c.Close(); err != nil {
t.Fatal(10, err)
}
b := readfile(t, name)
if len(b) != 1 {
t.Fatal(30, len(b), 1)
}
if b[0] != 0xa5 {
t.Fatal(40, b[0], 0xa5)
}
}
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