containernetworking-plugins/pkg/ip/ipforward_linux_test.go
Shengjing Zhu 59f9976017 pkg/ip: don't write to /proc/sys if ipforward enabled
This enables setup in a container env like systemd nspawn
where /proc/sys is mouted as read only.

Signed-off-by: Shengjing Zhu <i@zhsj.me>
2018-01-18 01:52:49 +08:00

32 lines
794 B
Go

package ip
import (
"io/ioutil"
"os"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("IpforwardLinux", func() {
It("echo1 must not write the file if content is 1", func() {
file, err := ioutil.TempFile(os.TempDir(), "containernetworking")
defer os.Remove(file.Name())
err = echo1(file.Name())
Expect(err).NotTo(HaveOccurred())
statBefore, err := file.Stat()
Expect(err).NotTo(HaveOccurred())
// take a duration here, otherwise next file modification operation time
// will be same as previous one.
time.Sleep(100 * time.Millisecond)
err = echo1(file.Name())
Expect(err).NotTo(HaveOccurred())
statAfter, err := file.Stat()
Expect(err).NotTo(HaveOccurred())
Expect(statBefore.ModTime()).To(Equal(statAfter.ModTime()))
})
})