t.Fatalf("failed to find created user: %v", err)
	}

	// Test Set + Update with Association OpCreate
	assocOp := clause.Association{
		Association: "Pets",
		Type:        clause.OpCreate,
		Set: []clause.Assignment{
			{Column: clause.Column{Name: "name"}, Value: "test-pet"},
		},
	}

package ioutil

import (
	"io"
	"os"
)

// AppendFile - appends the file "src" to the file "dst"
func AppendFile(dst string, src string, osync bool) error {
	flags := os.O_WRONLY | os.O_APPEND | os.O_CREATE
	if osync {
		flags |= os.O_SYNC
	}
	appendFile, err := os.OpenFile(dst, flags, 0o666)
	if err != nil {
		return err
	}
	defer appendFile.Close()

	srcFile, err := os.Open(src)
	if err != nil {

type AssociationOpType int

const (
	OpUnlink AssociationOpType = iota // Unlink association
	OpDelete                          // Delete association records
	OpUpdate                          // Update association records
	OpCreate                          // Create association records with assignments
)

// Association represents an association operation
type Association struct {
	Association string            // Association name

	"github.com/minio/minio/internal/lock"
)

// AppendFile - appends the file "src" to the file "dst"
func AppendFile(dst string, src string, osync bool) error {
	appendFile, err := lock.Open(dst, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0o666)
	if err != nil {
		return err
	}
	defer appendFile.Close()

	srcFile, err := lock.Open(src, os.O_RDONLY, 0o666)
	if err != nil {
		return err
	}
	defer srcFile.Close()

	if err != nil {
		t.Fatal(err)
	}

	// unlock the file
	if err = l.Close(); err != nil {
		t.Fatal(err)
	}

	// try lock the unlocked file
	dupl, err := LockedOpenFile(f.Name(), os.O_WRONLY|os.O_CREATE, 0o600)
	if err != nil {
		t.Errorf("err = %v, want %v", err, nil)
	}

	// blocking on locked file
	locked := make(chan struct{}, 1)
	go func() {

	// See https://github.com/golang/go/issues/23795 or
	// https://issuetracker.google.com/issues/73230216.
	lockPath := filepath.Join(os.TempDir(), "go_android_exec-adb-lock")
	lock, err := os.OpenFile(lockPath, os.O_CREATE|os.O_RDWR, 0666)
	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

	operations := []struct {
		Type     clause.AssociationOpType
		TypeName string
	}{
		{clause.OpUnlink, "OpUnlink"},
		{clause.OpDelete, "OpDelete"},
		{clause.OpUpdate, "OpUpdate"},
		{clause.OpCreate, "OpCreate"},
	}

	for _, op := range operations {
		assoc := clause.Association{
			Association: "Orders",
			Type:        op.Type,
		}

		if assoc.Type != op.Type {

		}
	}

	go w.listen()

	return w, nil
}

func newFile(path string) (*os.File, error) {
	return os.OpenFile(path, os.O_WRONLY|os.O_TRUNC|os.O_CREATE|os.O_SYNC, 0o666)

	//
	// The lock file is never deleted, to avoid concurrent locks on distinct
	// files with the same path.
	lockName := filepath.Join(os.TempDir(), "go_ios_exec-"+deviceID+".lock")
	lock, err = os.OpenFile(lockName, os.O_CREATE|os.O_RDONLY, 0666)
	if err != nil {
		return 1, err
	}
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 1, err
	}

	err = runOnSimulator(appdir)
	if err != nil {

	// Create top level directories if they don't exist.
	// with mode 0o777 mkdir honors system umask.
	mkdirAll(pathutil.Dir(filePath), 0o777, s.drivePath) // don't need to fail here

	w, err := s.openFileDirect(filePath, os.O_CREATE|os.O_WRONLY|os.O_EXCL)
	if err != nil {
		return err
	}
	_, err = w.Write(alignedBuf)
	w.Close()
	if err != nil {
		if isSysErrInvalidArg(err) {
			err = errUnsupportedDisk
		}
	}