github.com/ericjee/storage@v1.12.13/drivers/graphtest/testutil_unix.go (about)

     1  // +build linux freebsd
     2  
     3  package graphtest
     4  
     5  import (
     6  	"io/ioutil"
     7  	"os"
     8  	"path"
     9  	"syscall"
    10  	"testing"
    11  
    12  	"github.com/containers/storage/drivers"
    13  	"github.com/stretchr/testify/assert"
    14  	"github.com/stretchr/testify/require"
    15  	"golang.org/x/sys/unix"
    16  )
    17  
    18  func verifyFile(t testing.TB, path string, mode os.FileMode, uid, gid uint32) {
    19  	fi, err := os.Stat(path)
    20  	require.NoError(t, err)
    21  
    22  	actual := fi.Mode()
    23  	assert.Equal(t, mode&os.ModeType, actual&os.ModeType, path)
    24  	assert.Equal(t, mode&os.ModePerm, actual&os.ModePerm, path)
    25  	assert.Equal(t, mode&os.ModeSticky, actual&os.ModeSticky, path)
    26  	assert.Equal(t, mode&os.ModeSetuid, actual&os.ModeSetuid, path)
    27  	assert.Equal(t, mode&os.ModeSetgid, actual&os.ModeSetgid, path)
    28  
    29  	if stat, ok := fi.Sys().(*syscall.Stat_t); ok {
    30  		assert.Equal(t, uid, stat.Uid, path)
    31  		assert.Equal(t, gid, stat.Gid, path)
    32  	}
    33  }
    34  
    35  func createBase(t testing.TB, driver graphdriver.Driver, name string) {
    36  	// We need to be able to set any perms
    37  	oldmask := unix.Umask(0)
    38  	defer unix.Umask(oldmask)
    39  
    40  	err := driver.CreateReadWrite(name, "", nil)
    41  	require.NoError(t, err)
    42  
    43  	dir, err := driver.Get(name, graphdriver.MountOpts{})
    44  	require.NoError(t, err)
    45  	defer driver.Put(name)
    46  
    47  	subdir := path.Join(dir, "a subdir")
    48  	require.NoError(t, os.Mkdir(subdir, 0705|os.ModeSticky))
    49  	require.NoError(t, os.Chown(subdir, 1, 2))
    50  
    51  	file := path.Join(dir, "a file")
    52  	err = ioutil.WriteFile(file, []byte("Some data"), 0222|os.ModeSetuid)
    53  	require.NoError(t, err)
    54  }
    55  
    56  func verifyBase(t testing.TB, driver graphdriver.Driver, name string) {
    57  	dir, err := driver.Get(name, graphdriver.MountOpts{})
    58  	require.NoError(t, err)
    59  	defer driver.Put(name)
    60  
    61  	subdir := path.Join(dir, "a subdir")
    62  	verifyFile(t, subdir, 0705|os.ModeDir|os.ModeSticky, 1, 2)
    63  
    64  	file := path.Join(dir, "a file")
    65  	verifyFile(t, file, 0222|os.ModeSetuid, 0, 0)
    66  
    67  	files, err := readDir(dir)
    68  	require.NoError(t, err)
    69  	assert.Len(t, files, 2)
    70  }