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// Copyright 2019 the u-root 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 cp
import (
"errors"
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
"testing"
"golang.org/x/sys/unix"
)
var (
testdata = []byte("This is a test string")
)
func TestCopySimple(t *testing.T) {
var err error
tmpdirDst := t.TempDir()
tmpdirSrc := t.TempDir()
srcfiles := make([]*os.File, 2)
dstfiles := make([]*os.File, 2)
for iterator := range srcfiles {
srcfiles[iterator], err = os.CreateTemp(tmpdirSrc, "file-to-copy"+fmt.Sprintf("%d", iterator))
if err != nil {
t.Errorf("failed to create temp file: %q", err)
}
if _, err = srcfiles[iterator].Write(testdata); err != nil {
t.Errorf("failed to write testdata to file")
}
dstfiles[iterator], err = os.CreateTemp(tmpdirDst, "file-to-copy"+fmt.Sprintf("%d", iterator))
if err != nil {
t.Errorf("failed to create temp file: %q", err)
}
}
sl := filepath.Join(tmpdirDst, "test-symlink")
if err := os.Symlink(srcfiles[1].Name(), sl); err != nil {
t.Errorf("creating symlink failed")
}
for _, tt := range []struct {
name string
srcfile string
dstfile string
opt Options
wantErr error
}{
{
name: "Success",
srcfile: srcfiles[0].Name(),
dstfile: dstfiles[0].Name(),
opt: Default,
},
{
name: "SrcDstDirctoriesSuccess",
srcfile: tmpdirSrc,
dstfile: tmpdirDst,
},
{
name: "SrcNotExist",
srcfile: "file-does-not-exist",
dstfile: dstfiles[0].Name(),
wantErr: fs.ErrNotExist,
},
{
name: "DstIsDirectory",
srcfile: srcfiles[0].Name(),
dstfile: tmpdirDst,
wantErr: unix.EISDIR,
},
{
name: "CopySymlink",
srcfile: sl,
dstfile: dstfiles[1].Name(),
opt: Options{
NoFollowSymlinks: false,
},
},
{
name: "CopySymlinkFollow",
srcfile: sl,
dstfile: filepath.Join(tmpdirDst, "followed-symlink"),
opt: Options{
NoFollowSymlinks: true,
},
},
} {
t.Run(tt.name, func(t *testing.T) {
err := Copy(tt.srcfile, tt.dstfile)
if !errors.Is(err, tt.wantErr) {
t.Errorf("Test %q failed. Want: %q, Got: %q", tt.name, tt.wantErr, err)
}
})
// After every test with NoFollowSymlink we have to delete the created symlink.
if strings.Contains(tt.dstfile, "symlink") {
os.Remove(tt.dstfile)
}
t.Run(tt.name, func(t *testing.T) {
if err := tt.opt.Copy(tt.srcfile, tt.dstfile); !errors.Is(err, tt.wantErr) {
t.Errorf("%q failed. Want: %q, Got: %q", tt.name, tt.wantErr, err)
}
})
// After every test with NoFollowSymlink we have to delete the created symlink.
if strings.Contains(tt.dstfile, "symlink") {
os.Remove(tt.dstfile)
}
t.Run(tt.name, func(t *testing.T) {
if err := tt.opt.CopyTree(tt.srcfile, tt.dstfile); !errors.Is(err, tt.wantErr) {
t.Errorf("Test %q failed. Want: %q, Got: %q", tt.name, tt.wantErr, err)
}
})
// After every test with NoFollowSymlink we have to delete the created symlink.
if strings.Contains(tt.dstfile, "symlink") {
os.Remove(tt.dstfile)
}
t.Run(tt.name, func(t *testing.T) {
if err := CopyTree(tt.srcfile, tt.dstfile); !errors.Is(err, tt.wantErr) {
t.Errorf("Test %q failed. Want: %q, Got: %q", tt.name, tt.wantErr, err)
}
})
// After every test with NoFollowSymlink we have to delete the created symlink.
if strings.Contains(tt.dstfile, "symlink") {
os.Remove(tt.dstfile)
}
}
}
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