mirror of https://github.com/restic/restic.git
68 lines
1.4 KiB
Go
68 lines
1.4 KiB
Go
package fs_test
|
|
|
|
import (
|
|
"errors"
|
|
"flag"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"testing"
|
|
)
|
|
|
|
var childHelpers = map[string]func(){}
|
|
|
|
type childProcess struct {
|
|
name string
|
|
fn func()
|
|
}
|
|
|
|
var _ flag.Value = (*childProcess)(nil)
|
|
|
|
func (c *childProcess) String() string {
|
|
return c.name
|
|
}
|
|
|
|
func (c *childProcess) Set(s string) error {
|
|
fn, ok := childHelpers[s]
|
|
if !ok {
|
|
return errors.New("helper not found")
|
|
}
|
|
c.name = s
|
|
c.fn = fn
|
|
return nil
|
|
}
|
|
|
|
var childMode childProcess
|
|
|
|
func init() {
|
|
flag.Var(&childMode, "fuse.internal.child", "internal use only")
|
|
}
|
|
|
|
// childCmd prepares a test function to be run in a subprocess, with
|
|
// childMode set to true. Caller must still call Run or Start.
|
|
//
|
|
// Re-using the test executable as the subprocess is useful because
|
|
// now test executables can e.g. be cross-compiled, transferred
|
|
// between hosts, and run in settings where the whole Go development
|
|
// environment is not installed.
|
|
func childCmd(childName string) (*exec.Cmd, error) {
|
|
// caller may set cwd, so we can't rely on relative paths
|
|
executable, err := filepath.Abs(os.Args[0])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
cmd := exec.Command(executable, "-fuse.internal.child="+childName)
|
|
cmd.Stdout = os.Stdout
|
|
cmd.Stderr = os.Stderr
|
|
return cmd, nil
|
|
}
|
|
|
|
func TestMain(m *testing.M) {
|
|
flag.Parse()
|
|
if childMode.fn != nil {
|
|
childMode.fn()
|
|
os.Exit(0)
|
|
}
|
|
os.Exit(m.Run())
|
|
}
|