})
AfterEach(func() {
cmd, err := gexec.Start(exec.Command(
"sh", "-c", `
ip netns exec netns1 ip link del veth1
ip netns delete netns1
`,
), GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(cmd, "5s").Should(gexec.Exit(0))
})
It("Gets statistics from the interface", func() {
link := devices.Link{}
beforeStat, err := link.Statistics("veth0")
Expect(err).ToNot(HaveOccurred())
cmd, err := gexec.Start(exec.Command(
"sh", "-c", `
ping -c 10 -s 80 10.1.1.1
`,
), GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(cmd, "15s").Should(gexec.Exit(0))
afterStat, err := link.Statistics("veth0")
Expect(err).ToNot(HaveOccurred())
// size of ping packet is 42 + payload_size (80 bytes)
// there could be additional arp messages transferred and recieved
// so check for range instead of absolute values
