libgocryptfs/internal/syscallcompat/main_test.go

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package syscallcompat
import (
"fmt"
"io/ioutil"
"os"
"testing"
)
var tmpDir string
var tmpDirFd int
func TestMain(m *testing.M) {
origWd, err := os.Getwd()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
parent := "/tmp/gocryptfs-test-parent"
err = os.MkdirAll(parent, 0700)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
tmpDir, err = ioutil.TempDir(parent, "syscallcompat")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
dirf, err := os.Open(tmpDir)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer dirf.Close()
tmpDirFd = int(dirf.Fd())
// Run the tests
r := m.Run()
// Check that we are in the same directory again (the emulated syscalls
// use Fchdir a lot)
cwd, _ := os.Getwd()
if cwd != origWd {
fmt.Printf("working dir has changed from %q to %q", origWd, cwd)
os.Exit(1)
}
os.Exit(r)
}