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package datafs
import (
"fmt"
"io"
"io/fs"
"os"
"path/filepath"
"runtime"
"testing"
"github.com/hack-pad/hackpadfs"
"github.com/hack-pad/hackpadfs/mem"
osfs "github.com/hack-pad/hackpadfs/os"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
tfs "gotest.tools/v3/fs"
)
func TestWDFS_ReadOps(t *testing.T) {
wd, _ := os.Getwd()
t.Cleanup(func() {
_ = os.Chdir(wd)
})
_ = os.Chdir("/")
memfs, _ := mem.NewFS()
_ = memfs.Mkdir("tmp", 0o777)
_ = hackpadfs.WriteFullFile(memfs, "tmp/foo", []byte("hello world"), 0o777)
_ = hackpadfs.WriteFullFile(memfs, "tmp/one.txt", []byte("one"), 0o644)
_ = hackpadfs.WriteFullFile(memfs, "tmp/two.txt", []byte("two"), 0o644)
_ = hackpadfs.WriteFullFile(memfs, "tmp/three.txt", []byte("three"), 0o644)
_ = memfs.Mkdir("tmp/sub", 0o777)
_ = hackpadfs.WriteFullFile(memfs, "tmp/sub/bar", []byte("goodnight moon"), 0o777)
fsys := WrapWdFS(memfs).(*wdFS)
f, err := fsys.Open("/tmp/foo")
require.NoError(t, err)
b, err := io.ReadAll(f)
require.NoError(t, err)
assert.Equal(t, "hello world", string(b))
fi, err := fs.Stat(fsys, "/tmp/sub/bar")
require.NoError(t, err)
assert.True(t, fi.Mode().IsRegular())
b, err = fs.ReadFile(fsys, "/tmp/sub/bar")
require.NoError(t, err)
assert.Equal(t, "goodnight moon", string(b))
des, err := fs.ReadDir(fsys, "/tmp")
require.NoError(t, err)
assert.Len(t, des, 5)
// note the relative path here, a requirement of fsys.Sub
subfs, err := fs.Sub(fsys, "tmp/sub")
require.NoError(t, err)
b, err = fs.ReadFile(subfs, "bar")
require.NoError(t, err)
assert.Equal(t, "goodnight moon", string(b))
}
func TestWDFS_WriteOps(t *testing.T) {
// this test is backed by the real filesystem so we can test permissions
// and have some confidence it'll run on Windows
tmpDir := tfs.NewDir(t, "gomplate-wdfs-test")
tmpPath := tmpDir.Path()
vol := filepath.VolumeName(tmpPath)
if vol != "" {
tmpPath = tmpPath[len(vol):]
} else if tmpPath[0] == '/' {
vol = "/"
tmpPath = tmpPath[1:]
}
var osfsys fs.FS
var err error
if vol != "/" {
osfsys, err = osfs.NewFS().SubVolume(vol)
require.NoError(t, err)
} else {
osfsys = osfs.NewFS()
}
osfsys, err = hackpadfs.Sub(osfsys, tmpPath)
require.NoError(t, err)
fsys := &wdFS{
vol: vol,
fsys: osfsys,
}
err = fsys.Mkdir("/tmp", 0o700)
require.NoError(t, err, "failed to create /tmp: %q", tmpDir.Path())
// use os.Stat to make sure the directory was created in the right place
fi, err := os.Stat(filepath.Join(vol, tmpPath, "tmp"))
require.NoError(t, err)
assert.True(t, fi.Mode().IsDir())
err = hackpadfs.WriteFullFile(fsys, "/tmp/foo", []byte("hello world"), 0o600)
require.NoError(t, err)
err = hackpadfs.WriteFullFile(fsys, "/tmp/one.txt", []byte("one"), 0o644)
require.NoError(t, err)
err = hackpadfs.WriteFullFile(fsys, "/tmp/two.txt", []byte("two"), 0o644)
require.NoError(t, err)
err = hackpadfs.WriteFullFile(fsys, "/tmp/three.txt", []byte("three"), 0o644)
require.NoError(t, err)
err = fsys.MkdirAll("/tmp/sub", 0o777)
require.NoError(t, err)
err = hackpadfs.WriteFullFile(fsys, "/tmp/sub/bar", []byte("goodnight moon"), 0o777)
require.NoError(t, err)
b, err := fs.ReadFile(fsys, "/tmp/foo")
require.NoError(t, err)
assert.Equal(t, "hello world", string(b))
b, err = fs.ReadFile(fsys, "/tmp/sub/bar")
require.NoError(t, err)
assert.Equal(t, "goodnight moon", string(b))
err = fsys.Chmod("/tmp/foo", 0o444)
require.NoError(t, err)
// check permissions
fi, err = fsys.Stat("/tmp/foo")
require.NoError(t, err)
assert.True(t, fi.Mode().IsRegular())
assert.Equal(t, "0444", fmt.Sprintf("%#o", fi.Mode().Perm()))
// now delete it
err = fsys.Remove("/tmp/foo")
require.NoError(t, err)
// and check that it's gone
_, err = fsys.Stat("/tmp/foo")
require.ErrorIs(t, err, fs.ErrNotExist)
// make sure we can write to a subfs
subfs, err := fs.Sub(fsys, "tmp")
require.NoError(t, err)
require.NotNil(t, subfs)
// this is no longer a wdFS so we need to make sure not to use absolute
// paths - the path is relative to the root of the subfs
err = hackpadfs.WriteFullFile(subfs, "foo", []byte("hello world"), 0o600)
require.NoError(t, err)
b, err = fs.ReadFile(subfs, "foo")
require.NoError(t, err)
assert.Equal(t, "hello world", string(b))
}
func skipWindows(t *testing.T) {
t.Helper()
if runtime.GOOS == osWindows {
t.Skip("skipping non-Windows test")
}
}
func skipNonWindows(t *testing.T) {
t.Helper()
if runtime.GOOS != osWindows {
t.Skip("skipping Windows test")
}
}
func TestResolveLocalPath_NonWindows(t *testing.T) {
skipWindows(t)
wd, _ := os.Getwd()
fsys := &wdFS{vol: "/", fsys: osfs.NewFS()}
wd = wd[1:]
testdata := []struct {
path string
expected string
}{
{"/tmp/foo", "tmp/foo"},
{"tmp/foo", wd + "/tmp/foo"},
{"./tmp/foo", wd + "/tmp/foo"},
{"tmp/../foo", wd + "/foo"},
{"/", "."},
}
for _, td := range testdata {
t.Run(td.path, func(t *testing.T) {
root, path, err := ResolveLocalPath(fsys, td.path)
require.NoError(t, err)
assert.Equal(t, "/", root)
assert.Equal(t, td.expected, path)
})
}
}
func TestResolveLocalPath_Windows(t *testing.T) {
skipNonWindows(t)
wd, _ := os.Getwd()
volname := filepath.VolumeName(wd)
wd = filepath.ToSlash(wd)
fsys := &wdFS{vol: volname, fsys: osfs.NewFS()}
wd = wd[len(volname)+1:]
testdata := []struct {
path string
expRoot string
expected string
}{
{"C:/tmp/foo", "C:", "tmp/foo"},
{"D:\\tmp\\foo", "D:", "tmp/foo"},
{"/tmp/foo", volname, "tmp/foo"},
{"tmp/foo", volname, wd + "/tmp/foo"},
{"./tmp/foo", volname, wd + "/tmp/foo"},
{"tmp/../foo", volname, wd + "/foo"},
}
for _, td := range testdata {
t.Run(td.path, func(t *testing.T) {
root, path, err := ResolveLocalPath(fsys, td.path)
require.NoError(t, err)
assert.Equal(t, td.expRoot, root)
assert.Equal(t, td.expected, path)
})
}
}
func TestWdFS_ResolveLocalPath_NonWindows(t *testing.T) {
skipWindows(t)
wd, _ := os.Getwd()
wd = wd[1:]
testdata := []struct {
path string
expected string
}{
{"/tmp/foo", "tmp/foo"},
{"tmp/foo", wd + "/tmp/foo"},
{"./tmp/foo", wd + "/tmp/foo"},
{"tmp/../foo", wd + "/foo"},
{"/", "."},
}
for _, td := range testdata {
root, path, err := resolveLocalPath("/", td.path)
require.NoError(t, err)
assert.Equal(t, "/", root)
assert.Equal(t, td.expected, path)
}
}
func TestWdFS_ResolveLocalPath_Windows(t *testing.T) {
skipNonWindows(t)
wd, _ := os.Getwd()
volname := filepath.VolumeName(wd)
wd = filepath.ToSlash(wd)
wd = wd[len(volname)+1:]
testdata := []struct {
path string
expRoot string
expected string
}{
{"C:/tmp/foo", "C:", "tmp/foo"},
{`D:\tmp\foo`, "D:", "tmp/foo"},
{"/tmp/foo", volname, "tmp/foo"},
{"tmp/foo", volname, wd + "/tmp/foo"},
{"./tmp/foo", volname, wd + "/tmp/foo"},
{"tmp/../foo", volname, wd + "/foo"},
{`\\?\C:\tmp\foo`, "C:", "tmp/foo"},
{`\\somehost\share\foo\bar`, "//somehost/share", "foo/bar"},
{`//?/C:/tmp/foo`, "C:", "tmp/foo"},
{`//somehost/share/foo/bar`, "//somehost/share", "foo/bar"},
}
for _, td := range testdata {
t.Run(td.path, func(t *testing.T) {
root, path, err := resolveLocalPath(volname, td.path)
require.NoError(t, err)
assert.Equal(t, td.expRoot, root)
assert.Equal(t, td.expected, path)
})
}
}
func TestWin32PathType(t *testing.T) {
testdata := []struct {
path string
expected winPathtype
}{
{"", winPathUnknown},
{`\`, winPathRooted},
{`\\`, winPathUncAbsolute},
{`x`, winPathRelative},
{`x:`, winPathDriveRelative},
{"C:/tmp/foo", winPathDriveAbsolute},
{`D:\tmp\foo`, winPathDriveAbsolute},
{"/tmp/foo", winPathRooted},
{"tmp/foo", winPathRelative},
{"./tmp/foo", winPathRelative},
{"tmp/../foo", winPathRelative},
{`\\?\C:\tmp\foo`, winPathLocalDevice},
{`\\somehost\share\foo\bar`, winPathUncAbsolute},
{`//./C:/tmp/foo`, winPathLocalDevice},
{`//./pipe/foo`, winPathLocalDevice},
{`//./COM2`, winPathLocalDevice},
{`\\.`, winPathRootLocalDevice},
{`//?`, winPathRootLocalDevice},
{`/??/C:/`, winPathNT},
{`/??/UNC/server/foo`, winPathNT},
}
for _, td := range testdata {
t.Run(td.path, func(t *testing.T) {
assert.Equal(t, td.expected, win32PathType(td.path))
})
}
}
|
