package cephfs import ( "fmt" "os" "path" "testing" "github.com/stretchr/testify/assert" ) func TestChangeDir(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) dir1 := mount.CurrentDir() assert.NotNil(t, dir1) err := mount.MakeDir("/asdf", 0755) assert.NoError(t, err) err = mount.ChangeDir("/asdf") assert.NoError(t, err) dir2 := mount.CurrentDir() assert.NotNil(t, dir2) assert.NotEqual(t, dir1, dir2) assert.Equal(t, dir1, "/") assert.Equal(t, dir2, "/asdf") err = mount.ChangeDir("/") assert.NoError(t, err) err = mount.RemoveDir("/asdf") assert.NoError(t, err) } func TestRemoveDir(t *testing.T) { useMount(t) dirname := "one" localPath := path.Join(CephMountDir, dirname) mount := fsConnect(t) defer fsDisconnect(t, mount) err := mount.MakeDir(dirname, 0755) assert.NoError(t, err) err = mount.SyncFs() assert.NoError(t, err) // os.Stat the actual mounted location to verify Makedir/RemoveDir _, err = os.Stat(localPath) assert.NoError(t, err) err = mount.RemoveDir(dirname) assert.NoError(t, err) _, err = os.Stat(localPath) assert.EqualError(t, err, fmt.Sprintf("stat %s: no such file or directory", localPath)) } func TestLink(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) t.Run("rootDirOperations", func(t *testing.T) { // Root dir, both as source and destination. err := mount.Link("/", "/") // Error directory operations are not allowed. assert.Error(t, err) dir1 := "myDir1" assert.NoError(t, mount.MakeDir(dir1, 0755)) defer func() { assert.NoError(t, mount.RemoveDir(dir1)) }() // Creating link for a directory. err = mount.Link(dir1, "/") // Error, directory operations not allowed. assert.Error(t, err) }) // Non-root directory operations. fname := "testFile.txt" dir2 := "myDir2" assert.NoError(t, mount.MakeDir(dir2, 0755)) defer func() { assert.NoError(t, mount.RemoveDir(dir2)) }() t.Run("dirAsSource", func(t *testing.T) { err := mount.Link(dir2, fname) // Error, directory operations not allowed. assert.Error(t, err) }) t.Run("dirAsDestination", func(t *testing.T) { f1, err := mount.Open(fname, os.O_WRONLY|os.O_CREATE, 0666) assert.NotNil(t, f1) assert.NoError(t, err) defer func() { assert.NoError(t, f1.Close()) assert.NoError(t, mount.Unlink(fname)) }() err = mount.Link(fname, dir2) // Error, destination exists. assert.Error(t, err) }) // File operations. t.Run("sourceDoesNotExist", func(t *testing.T) { fname := "notExist.txt" err := mount.Link(fname, "hardlnk") // Error, file does not exist. assert.Error(t, err) }) t.Run("sourceExistsSuccess", func(t *testing.T) { useMount(t) fname1 := "TestFile1.txt" f1, err := mount.Open(fname1, os.O_WRONLY|os.O_CREATE, 0666) assert.NotNil(t, f1) assert.NoError(t, err) defer func() { assert.NoError(t, f1.Close()) assert.NoError(t, mount.Unlink(fname1)) }() err = mount.Link(fname1, "hardlnk") defer func() { assert.NoError(t, mount.Unlink("hardlnk")) }() // No error, normal link operation. assert.NoError(t, err) // Verify that link got created. _, err = os.Stat(path.Join(CephMountDir, "hardlnk")) assert.NoError(t, err) }) t.Run("destExistsError", func(t *testing.T) { // Create hard link when destination exists. fname2 := "TestFile2.txt" fname3 := "TestFile3.txt" f2, err := mount.Open(fname2, os.O_WRONLY|os.O_CREATE, 0666) assert.NotNil(t, f2) assert.NoError(t, err) defer func() { assert.NoError(t, f2.Close()) assert.NoError(t, mount.Unlink(fname2)) }() f3, err := mount.Open(fname3, os.O_WRONLY|os.O_CREATE, 0666) assert.NotNil(t, f3) assert.NoError(t, err) defer func() { assert.NoError(t, f3.Close()) assert.NoError(t, mount.Unlink(fname3)) }() err = mount.Link(fname2, fname3) // Error, destination already exists. assert.Error(t, err) }) } func TestUnlink(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) t.Run("fileUnlink", func(t *testing.T) { fname := "TestFile.txt" err := mount.Unlink(fname) // Error, file does not exist. assert.Error(t, err) f, err := mount.Open(fname, os.O_WRONLY|os.O_CREATE, 0666) assert.NotNil(t, f) assert.NoError(t, err) defer func() { assert.NoError(t, f.Close()) assert.NoError(t, mount.Unlink(fname)) }() assert.NoError(t, mount.Link(fname, "hardlnk")) err = mount.Unlink("hardlnk") // No Error, link will be removed. assert.NoError(t, err) }) t.Run("dirUnlink", func(t *testing.T) { dirname := "/a" err := mount.MakeDir(dirname, 0755) assert.NoError(t, err) defer func() { assert.NoError(t, mount.RemoveDir(dirname)) }() err = mount.Unlink(dirname) // Error, not permitted on directory. assert.Error(t, err) }) } func TestSymlink(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) // File operations. t.Run("sourceDoesNotExistSuccess", func(t *testing.T) { useMount(t) fname1 := "TestFile1.txt" err := mount.Symlink(fname1, "Symlnk1") // No Error, symlink works even if source file doesn't exist. assert.NoError(t, err) _, err = os.Stat(path.Join(CephMountDir, "Symlnk1")) // Error, source is not there. assert.Error(t, err) localPath := path.Join(CephMountDir, fname1) _, err = os.Stat(localPath) // Error, source file is still not there. assert.Error(t, err) }) t.Run("symlinkExistsError", func(t *testing.T) { fname1 := "TestFile1.txt" f1, err := mount.Open(fname1, os.O_RDWR|os.O_CREATE, 0666) assert.NoError(t, err) assert.NotNil(t, f1) defer func() { assert.NoError(t, f1.Close()) assert.NoError(t, mount.Unlink(fname1)) }() err = mount.Symlink(fname1, "Symlnk1") // Error, Symlink1 exists. assert.Error(t, err) defer func() { assert.NoError(t, mount.Unlink("Symlnk1")) }() }) t.Run("sourceExistsSuccess", func(t *testing.T) { useMount(t) fname2 := "TestFile2.txt" f2, err := mount.Open(fname2, os.O_RDWR|os.O_CREATE, 0666) assert.NoError(t, err) assert.NotNil(t, f2) defer func() { assert.NoError(t, f2.Close()) assert.NoError(t, mount.Unlink(fname2)) }() err = mount.Symlink(fname2, "Symlnk2") assert.NoError(t, err) defer func() { assert.NoError(t, mount.Unlink("Symlnk2")) }() _, err = os.Stat(path.Join(CephMountDir, "Symlnk2")) assert.NoError(t, err) }) // Directory operations. t.Run("rootDirOps", func(t *testing.T) { err := mount.Symlink("/", "/") assert.Error(t, err) err = mount.Symlink("/", "someDir") assert.NoError(t, err) err = mount.Symlink("someFile", "/") // Error, permission denied. assert.Error(t, err) }) t.Run("nonRootDir", func(t *testing.T) { useMount(t) // 1. Create a directory. // 2. Create a symlink to that directory. // 3. Create a file inside symlink. // 4. Ensure that it is not a directory. dirname := "mydir" err := mount.MakeDir(dirname, 0755) assert.NoError(t, err) defer func() { assert.NoError(t, mount.RemoveDir(dirname)) }() err = mount.Symlink(dirname, "symlnk") assert.NoError(t, err) defer func() { assert.NoError(t, mount.Unlink("symlnk")) }() fname := "symlnk/file" f1, err := mount.Open(fname, os.O_RDWR|os.O_CREATE, 0666) assert.NoError(t, err) assert.NotNil(t, f1) defer func() { assert.NoError(t, f1.Close()) assert.NoError(t, mount.Unlink(fname)) }() var fileInfo os.FileInfo fileInfo, err = os.Stat(path.Join(CephMountDir, "symlnk/file")) assert.NoError(t, err) assert.Equal(t, fileInfo.IsDir(), false) }) } func TestReadlink(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) t.Run("regularFile", func(t *testing.T) { fname := "file1.txt" f1, err := mount.Open(fname, os.O_RDWR|os.O_CREATE, 0666) assert.NoError(t, err) assert.NotNil(t, f1) defer func() { assert.NoError(t, f1.Close()) assert.NoError(t, mount.Unlink(fname)) }() buf, err := mount.Readlink(fname) // Error, given path is not symbolic link. assert.Error(t, err) assert.Equal(t, buf, "") }) t.Run("symLink", func(t *testing.T) { path1 := "path1" path2 := "path2" assert.NoError(t, mount.Symlink(path1, path2)) defer func() { assert.NoError(t, mount.Unlink(path2)) }() buf, err := mount.Readlink(path2) assert.NoError(t, err) assert.Equal(t, buf, path1) }) t.Run("hardLink", func(t *testing.T) { path3 := "path3" path4 := "path4" p, err := mount.Open(path3, os.O_RDWR|os.O_CREATE, 0666) assert.NoError(t, err) assert.NotNil(t, p) defer func() { assert.NoError(t, p.Close()) assert.NoError(t, mount.Unlink(path3)) }() assert.NoError(t, mount.Link(path3, path4)) defer func() { assert.NoError(t, mount.Unlink(path4)) }() buf, err := mount.Readlink(path4) // Error, path4 is not symbolic link. assert.Error(t, err) assert.Equal(t, buf, "") }) } func TestStatx(t *testing.T) { mount := fsConnect(t) defer fsDisconnect(t, mount) dirname := "statme" assert.NoError(t, mount.MakeDir(dirname, 0755)) st, err := mount.Statx(dirname, StatxBasicStats, 0) assert.NoError(t, err) assert.NotNil(t, st) assert.Equal(t, uint16(0755), st.Mode&0777) assert.NoError(t, mount.RemoveDir(dirname)) st, err = mount.Statx(dirname, StatxBasicStats, 0) assert.Error(t, err) assert.Nil(t, st) assert.Equal(t, errNoEntry, err) }