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moby--moby/pkg/reexec/reexec_test.go
Naveed Jamil 7e03cebff4 Added Test Case Coverage for PKG/REEXEC
Signed-off-by: Naveed Jamil <naveed.jamil@tenpearls.com>
2017-06-09 12:08:04 +05:00

53 lines
1.1 KiB
Go

package reexec
import (
"os"
"os/exec"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func init() {
Register("reexec", func() {
panic("Return Error")
})
Init()
}
func TestRegister(t *testing.T) {
defer func() {
if r := recover(); r != nil {
require.Equal(t, `reexec func already registered under name "reexec"`, r)
}
}()
Register("reexec", func() {})
}
func TestCommand(t *testing.T) {
cmd := Command("reexec")
w, err := cmd.StdinPipe()
require.NoError(t, err, "Error on pipe creation: %v", err)
defer w.Close()
err = cmd.Start()
require.NoError(t, err, "Error on re-exec cmd: %v", err)
err = cmd.Wait()
require.EqualError(t, err, "exit status 2")
}
func TestNaiveSelf(t *testing.T) {
if os.Getenv("TEST_CHECK") == "1" {
os.Exit(2)
}
cmd := exec.Command(naiveSelf(), "-test.run=TestNaiveSelf")
cmd.Env = append(os.Environ(), "TEST_CHECK=1")
err := cmd.Start()
require.NoError(t, err, "Unable to start command")
err = cmd.Wait()
require.EqualError(t, err, "exit status 2")
os.Args[0] = "mkdir"
assert.NotEqual(t, naiveSelf(), os.Args[0])
}