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// Copyright 2016 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package nodefs
import (
"io/ioutil"
"os"
"testing"
"time"
"github.com/hanwen/go-fuse/fuse"
)
const testTtl = 100 * time.Millisecond
func setupMemNodeTest(t *testing.T) (wd string, root Node, clean func()) {
tmp, err := ioutil.TempDir("", "go-fuse-memnode_test")
if err != nil {
t.Fatalf("TempDir failed: %v", err)
}
back := tmp + "/backing"
os.Mkdir(back, 0700)
root = NewMemNodeFSRoot(back)
mnt := tmp + "/mnt"
os.Mkdir(mnt, 0700)
connector := NewFileSystemConnector(root,
&Options{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
Debug: VerboseTest(),
})
state, err := fuse.NewServer(connector.RawFS(), mnt, &fuse.MountOptions{Debug: VerboseTest()})
if err != nil {
t.Fatal("NewServer", err)
}
// Unthreaded, but in background.
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
return mnt, root, func() {
state.Unmount()
os.RemoveAll(tmp)
}
}
func TestMemNodeFsWrite(t *testing.T) {
wd, _, clean := setupMemNodeTest(t)
defer clean()
want := "hello"
err := ioutil.WriteFile(wd+"/test", []byte(want), 0644)
if err != nil {
t.Fatalf("WriteFile failed: %v", err)
}
content, err := ioutil.ReadFile(wd + "/test")
if string(content) != want {
t.Fatalf("content mismatch: got %q, want %q", content, want)
}
}
func TestMemNodeFsBasic(t *testing.T) {
wd, _, clean := setupMemNodeTest(t)
defer clean()
err := ioutil.WriteFile(wd+"/test", []byte{42}, 0644)
if err != nil {
t.Fatalf("WriteFile failed: %v", err)
}
fi, err := os.Lstat(wd + "/test")
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
if fi.Size() != 1 {
t.Errorf("Size after write incorrect: got %d want 1", fi.Size())
}
entries, err := ioutil.ReadDir(wd)
if len(entries) != 1 || entries[0].Name() != "test" {
t.Fatalf("Readdir got %v, expected 1 file named 'test'", entries)
}
}
func TestMemNodeSetattr(t *testing.T) {
wd, _, clean := setupMemNodeTest(t)
defer clean()
f, err := os.OpenFile(wd+"/test", os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
t.Fatalf("OpenFile failed: %v", err)
}
defer f.Close()
err = f.Truncate(4096)
if err != nil {
t.Fatalf("Truncate failed: %v", err)
}
fi, err := f.Stat()
if err != nil {
t.Fatalf("Stat failed: %v", err)
}
if fi.Size() != 4096 {
t.Errorf("Size should be 4096 after Truncate: %d", fi.Size())
}
}
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