100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
// Copyright 2016 CNI authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main_test
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import (
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"fmt"
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"net"
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"os"
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"os/exec"
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"strings"
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"github.com/appc/cni/pkg/ns"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/onsi/gomega/gbytes"
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"github.com/onsi/gomega/gexec"
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)
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var _ = Describe("Loopback", func() {
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var (
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networkNS string
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containerID string
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command *exec.Cmd
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environ []string
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)
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BeforeEach(func() {
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command = exec.Command(pathToLoPlugin)
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containerID = "some-container-id"
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networkNS = makeNetworkNS(containerID)
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environ = []string{
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fmt.Sprintf("CNI_CONTAINERID=%s", containerID),
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fmt.Sprintf("CNI_NETNS=%s", networkNS),
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fmt.Sprintf("CNI_IFNAME=%s", "this is ignored"),
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fmt.Sprintf("CNI_ARGS=%s", "none"),
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fmt.Sprintf("CNI_PATH=%s", "/some/test/path"),
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}
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command.Stdin = strings.NewReader("this doesn't matter")
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})
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AfterEach(func() {
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Expect(removeNetworkNS(networkNS)).To(Succeed())
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})
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Context("when given a network namespace", func() {
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It("sets the lo device to UP", func() {
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command.Env = append(environ, fmt.Sprintf("CNI_COMMAND=%s", "ADD"))
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session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)
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Expect(err).NotTo(HaveOccurred())
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Eventually(session).Should(gbytes.Say(`{.*}`))
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Eventually(session).Should(gexec.Exit(0))
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var lo *net.Interface
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err = ns.WithNetNSPath(networkNS, true, func(hostNS *os.File) error {
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var err error
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lo, err = net.InterfaceByName("lo")
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return err
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})
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Expect(err).NotTo(HaveOccurred())
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Expect(lo.Flags & net.FlagUp).To(Equal(net.FlagUp))
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})
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It("sets the lo device to DOWN", func() {
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command.Env = append(environ, fmt.Sprintf("CNI_COMMAND=%s", "DEL"))
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session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)
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Expect(err).NotTo(HaveOccurred())
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Eventually(session).Should(gbytes.Say(``))
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Eventually(session).Should(gexec.Exit(0))
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var lo *net.Interface
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err = ns.WithNetNSPath(networkNS, true, func(hostNS *os.File) error {
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var err error
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lo, err = net.InterfaceByName("lo")
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return err
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})
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Expect(err).NotTo(HaveOccurred())
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Expect(lo.Flags & net.FlagUp).NotTo(Equal(net.FlagUp))
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})
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})
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})
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