114 lines
3.2 KiB
Go
114 lines
3.2 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/exec"
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"strings"
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. "github.com/onsi/ginkgo/v2"
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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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"github.com/containernetworking/plugins/pkg/ns"
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"github.com/containernetworking/plugins/pkg/testutils"
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)
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func generateConfig(cniVersion string) *strings.Reader {
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return strings.NewReader(fmt.Sprintf(`{ "name": "loopback-test", "cniVersion": "%s" }`, cniVersion))
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}
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var _ = Describe("Loopback", func() {
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var (
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networkNS ns.NetNS
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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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var err error
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networkNS, err = testutils.NewNS()
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Expect(err).NotTo(HaveOccurred())
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environ = []string{
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fmt.Sprintf("CNI_CONTAINERID=%s", "dummy"),
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fmt.Sprintf("CNI_NETNS=%s", networkNS.Path()),
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fmt.Sprintf("CNI_IFNAME=%s", "lo"),
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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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})
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AfterEach(func() {
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Expect(networkNS.Close()).To(Succeed())
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Expect(testutils.UnmountNS(networkNS)).To(Succeed())
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})
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for _, ver := range testutils.AllSpecVersions {
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// Redefine ver inside for scope so real value is picked up by each dynamically defined It()
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// See Gingkgo's "Patterns for dynamically generating tests" documentation.
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ver := ver
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Context("when given a network namespace", func() {
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It(fmt.Sprintf("[%s] sets the lo device to UP", ver), func() {
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command.Stdin = generateConfig(ver)
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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 = networkNS.Do(func(ns.NetNS) 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(fmt.Sprintf("[%s] sets the lo device to DOWN", ver), func() {
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command.Stdin = generateConfig(ver)
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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 = networkNS.Do(func(ns.NetNS) 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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})
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