mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-10-22 20:39:41 +00:00
ce37ac146d
As recommended by `golint`, renamed the `vcMock` package to `vcmock`. Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
697 lines
18 KiB
Go
697 lines
18 KiB
Go
// Copyright (c) 2017 Intel Corporation
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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
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import (
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"flag"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"testing"
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vc "github.com/kata-containers/runtime/virtcontainers"
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vcAnnotations "github.com/kata-containers/runtime/virtcontainers/pkg/annotations"
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"github.com/kata-containers/runtime/virtcontainers/pkg/oci"
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"github.com/kata-containers/runtime/virtcontainers/pkg/vcmock"
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"github.com/stretchr/testify/assert"
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"github.com/urfave/cli"
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)
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func TestExecCLIFunction(t *testing.T) {
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assert := assert.New(t)
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flagSet := &flag.FlagSet{}
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app := cli.NewApp()
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ctx := cli.NewContext(app, flagSet, nil)
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fn, ok := startCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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// no container-id in the Metadata
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err := fn(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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// pass container-id
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flagSet = flag.NewFlagSet("container-id", flag.ContinueOnError)
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flagSet.Parse([]string{"xyz"})
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ctx = cli.NewContext(app, flagSet, nil)
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err = fn(ctx)
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assert.Error(err)
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assert.True(vcmock.IsMockError(err))
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}
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func TestExecuteErrors(t *testing.T) {
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assert := assert.New(t)
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flagSet := flag.NewFlagSet("", 0)
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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// missing container id
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err := execute(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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// ListPod error
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flagSet.Parse([]string{testContainerID})
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err = execute(ctx)
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assert.Error(err)
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assert.True(vcmock.IsMockError(err))
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// Config path missing in annotations
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, vc.State{}, vc.State{}, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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err = execute(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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// Container not running
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations = map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, vc.State{}, vc.State{}, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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err = execute(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func TestExecuteErrorReadingProcessJson(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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// non-existent path
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processPath := filepath.Join(tmpdir, "process.json")
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flagSet := flag.NewFlagSet("", 0)
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flagSet.String("process", processPath, "")
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flagSet.Parse([]string{testContainerID})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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// Note: flags can only be tested with the CLI command function
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func TestExecuteErrorOpeningConsole(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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consoleSock := filepath.Join(tmpdir, "console-sock")
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flagSet := flag.NewFlagSet("", 0)
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flagSet.String("console-socket", consoleSock, "")
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flagSet.Parse([]string{testContainerID})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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// Note: flags can only be tested with the CLI command function
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func testExecParamsSetup(t *testing.T, pidFilePath, consolePath string, detach bool) *flag.FlagSet {
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flagSet := flag.NewFlagSet("", 0)
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flagSet.String("pid-file", pidFilePath, "")
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flagSet.String("console", consolePath, "")
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flagSet.String("console-socket", "", "")
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flagSet.Bool("detach", detach, "")
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flagSet.String("process-label", "testlabel", "")
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flagSet.Bool("no-subreaper", false, "")
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return flagSet
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}
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func TestExecuteWithFlags(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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pidFilePath := filepath.Join(tmpdir, "pid")
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consolePath := "/dev/ptmx"
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flagSet := testExecParamsSetup(t, pidFilePath, consolePath, false)
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flagSet.String("user", "root", "")
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flagSet.String("cwd", "/home/root", "")
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flagSet.String("apparmor", "/tmp/profile", "")
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flagSet.Bool("no-new-privs", false, "")
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flagSet.Parse([]string{testContainerID, "/tmp/foo"})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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// EnterContainer error
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err = fn(ctx)
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assert.Error(err)
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assert.True(vcmock.IsMockError(err))
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testingImpl.EnterContainerFunc = func(podID, containerID string, cmd vc.Cmd) (vc.VCPod, vc.VCContainer, *vc.Process, error) {
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return &vcmock.Pod{}, &vcmock.Container{}, &vc.Process{}, nil
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}
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defer func() {
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testingImpl.EnterContainerFunc = nil
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os.Remove(pidFilePath)
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}()
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// Process not running error
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err = fn(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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os.Remove(pidFilePath)
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// Process ran and exited successfully
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testingImpl.EnterContainerFunc = func(podID, containerID string, cmd vc.Cmd) (vc.VCPod, vc.VCContainer, *vc.Process, error) {
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// create a fake container process
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workload := []string{"cat", "/dev/null"}
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command := exec.Command(workload[0], workload[1:]...)
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err := command.Start()
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assert.NoError(err, "Unable to start process %v: %s", workload, err)
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vcProcess := vc.Process{}
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vcProcess.Pid = command.Process.Pid
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return &vcmock.Pod{}, &vcmock.Container{}, &vcProcess, nil
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}
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defer func() {
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testingImpl.EnterContainerFunc = nil
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os.Remove(pidFilePath)
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}()
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// Should get an exit code when run in non-detached mode.
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err = fn(ctx)
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_, ok = err.(*cli.ExitError)
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assert.True(ok, true, "Exit code not received for fake workload process")
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}
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func TestExecuteWithFlagsDetached(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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pidFilePath := filepath.Join(tmpdir, "pid")
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consolePath := "/dev/ptmx"
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detach := true
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flagSet := testExecParamsSetup(t, pidFilePath, consolePath, detach)
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flagSet.Parse([]string{testContainerID, "/tmp/foo"})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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testingImpl.EnterContainerFunc = func(podID, containerID string, cmd vc.Cmd) (vc.VCPod, vc.VCContainer, *vc.Process, error) {
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// create a fake container process
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workload := []string{"cat", "/dev/null"}
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command := exec.Command(workload[0], workload[1:]...)
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err := command.Start()
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assert.NoError(err, "Unable to start process %v: %s", workload, err)
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vcProcess := vc.Process{}
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vcProcess.Pid = command.Process.Pid
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return &vcmock.Pod{}, &vcmock.Container{}, &vcProcess, nil
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}
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defer func() {
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testingImpl.EnterContainerFunc = nil
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os.Remove(pidFilePath)
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}()
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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assert.NoError(err)
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}
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func TestExecuteWithInvalidProcessJson(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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pidFilePath := filepath.Join(tmpdir, "pid")
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consolePath := "/dev/ptmx"
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detach := false
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flagSet := testExecParamsSetup(t, pidFilePath, consolePath, detach)
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processPath := filepath.Join(tmpdir, "process.json")
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flagSet.String("process", processPath, "")
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f, err := os.OpenFile(processPath, os.O_RDWR|os.O_CREATE, testFileMode)
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assert.NoError(err)
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// invalidate the JSON
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_, err = f.WriteString("{")
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assert.NoError(err)
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f.Close()
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defer os.Remove(processPath)
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flagSet.Parse([]string{testContainerID})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodSandbox),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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assert.Error(err)
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assert.False(vcmock.IsMockError(err))
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}
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func TestExecuteWithValidProcessJson(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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pidFilePath := filepath.Join(tmpdir, "pid")
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consolePath := "/dev/ptmx"
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flagSet := testExecParamsSetup(t, pidFilePath, consolePath, false)
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processPath := filepath.Join(tmpdir, "process.json")
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flagSet.String("process", processPath, "")
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flagSet.Parse([]string{testContainerID, "/tmp/foo"})
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ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
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configPath := testConfigSetup(t)
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configJSON, err := readOCIConfigJSON(configPath)
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assert.NoError(err)
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annotations := map[string]string{
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vcAnnotations.ContainerTypeKey: string(vc.PodContainer),
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vcAnnotations.ConfigJSONKey: configJSON,
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}
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state := vc.State{
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State: vc.StateRunning,
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}
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testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
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return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
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}
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defer func() {
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testingImpl.ListPodFunc = nil
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}()
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processJSON := `{
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"consoleSize": {
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"height": 15,
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"width": 15
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},
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"terminal": true,
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"user": {
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"uid": 0,
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"gid": 0
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},
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"args": [
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"sh"
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],
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"env": [
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"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
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"TERM=xterm"
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],
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"cwd": "/"
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}`
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f, err := os.OpenFile(processPath, os.O_RDWR|os.O_CREATE, testFileMode)
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assert.NoError(err)
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_, err = f.WriteString(processJSON)
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assert.NoError(err)
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f.Close()
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defer os.Remove(processPath)
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workload := []string{"cat", "/dev/null"}
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testingImpl.EnterContainerFunc = func(podID, containerID string, cmd vc.Cmd) (vc.VCPod, vc.VCContainer, *vc.Process, error) {
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// create a fake container process
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command := exec.Command(workload[0], workload[1:]...)
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err := command.Start()
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assert.NoError(err, "Unable to start process %v: %s", workload, err)
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vcProcess := vc.Process{}
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vcProcess.Pid = command.Process.Pid
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return &vcmock.Pod{}, &vcmock.Container{}, &vcProcess, nil
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}
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defer func() {
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testingImpl.EnterContainerFunc = nil
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os.Remove(pidFilePath)
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}()
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fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
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assert.True(ok)
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err = fn(ctx)
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exitErr, ok := err.(*cli.ExitError)
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assert.True(ok, true, "Exit code not received for fake workload process")
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assert.Equal(exitErr.ExitCode(), 0, "Exit code should have been 0 for fake workload %s", workload)
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}
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func TestExecuteWithInvalidEnvironment(t *testing.T) {
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assert := assert.New(t)
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tmpdir, err := ioutil.TempDir("", "")
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assert.NoError(err)
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defer os.RemoveAll(tmpdir)
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processPath := filepath.Join(tmpdir, "process.json")
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flagSet := flag.NewFlagSet("", 0)
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flagSet.String("process", processPath, "")
|
|
flagSet.Parse([]string{testContainerID})
|
|
ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
|
|
|
|
configPath := testConfigSetup(t)
|
|
configJSON, err := readOCIConfigJSON(configPath)
|
|
assert.NoError(err)
|
|
|
|
annotations := map[string]string{
|
|
vcAnnotations.ContainerTypeKey: string(vc.PodContainer),
|
|
vcAnnotations.ConfigJSONKey: configJSON,
|
|
}
|
|
|
|
state := vc.State{
|
|
State: vc.StateRunning,
|
|
}
|
|
|
|
testingImpl.ListPodFunc = func() ([]vc.PodStatus, error) {
|
|
return newSingleContainerPodStatusList(testPodID, testContainerID, state, state, annotations), nil
|
|
}
|
|
|
|
defer func() {
|
|
testingImpl.ListPodFunc = nil
|
|
}()
|
|
|
|
processJSON := `{
|
|
"env": [
|
|
"TERM="
|
|
]
|
|
}`
|
|
|
|
f, err := os.OpenFile(processPath, os.O_RDWR|os.O_CREATE, testFileMode)
|
|
assert.NoError(err)
|
|
|
|
_, err = f.WriteString(processJSON)
|
|
assert.NoError(err)
|
|
f.Close()
|
|
|
|
defer os.Remove(processPath)
|
|
|
|
fn, ok := execCLICommand.Action.(func(context *cli.Context) error)
|
|
assert.True(ok)
|
|
|
|
// vcAnnotations.EnvVars error due to incorrect environment
|
|
err = fn(ctx)
|
|
assert.Error(err)
|
|
assert.False(vcmock.IsMockError(err))
|
|
}
|
|
|
|
func TestGenerateExecParams(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
tmpdir, err := ioutil.TempDir("", "")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(tmpdir)
|
|
|
|
pidFilePath := filepath.Join(tmpdir, "pid")
|
|
consolePath := "/dev/ptmx"
|
|
consoleSocket := "/tmp/console-sock"
|
|
processLabel := "testlabel"
|
|
user := "root"
|
|
cwd := "cwd"
|
|
apparmor := "apparmorProf"
|
|
|
|
flagSet := flag.NewFlagSet("", 0)
|
|
flagSet.String("pid-file", pidFilePath, "")
|
|
flagSet.String("console", consolePath, "")
|
|
flagSet.String("console-socket", consoleSocket, "")
|
|
flagSet.String("process-label", processLabel, "")
|
|
|
|
flagSet.String("user", user, "")
|
|
flagSet.String("cwd", cwd, "")
|
|
flagSet.String("apparmor", apparmor, "")
|
|
|
|
ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
|
|
process := &oci.CompatOCIProcess{}
|
|
params, err := generateExecParams(ctx, process)
|
|
assert.NoError(err)
|
|
|
|
assert.Equal(params.pidFile, pidFilePath)
|
|
assert.Equal(params.console, consolePath)
|
|
assert.Equal(params.consoleSock, consoleSocket)
|
|
assert.Equal(params.processLabel, processLabel)
|
|
assert.Equal(params.noSubreaper, false)
|
|
assert.Equal(params.detach, false)
|
|
|
|
assert.Equal(params.ociProcess.Terminal, false)
|
|
assert.Equal(params.ociProcess.User.UID, uint32(0))
|
|
assert.Equal(params.ociProcess.User.GID, uint32(0))
|
|
assert.Equal(params.ociProcess.Cwd, cwd)
|
|
assert.Equal(params.ociProcess.ApparmorProfile, apparmor)
|
|
}
|
|
|
|
func TestGenerateExecParamsWithProcessJsonFile(t *testing.T) {
|
|
assert := assert.New(t)
|
|
|
|
tmpdir, err := ioutil.TempDir("", "")
|
|
assert.NoError(err)
|
|
defer os.RemoveAll(tmpdir)
|
|
|
|
pidFilePath := filepath.Join(tmpdir, "pid")
|
|
consolePath := "/dev/ptmx"
|
|
consoleSocket := "/tmp/console-sock"
|
|
detach := true
|
|
processLabel := "testlabel"
|
|
|
|
flagSet := flag.NewFlagSet("", 0)
|
|
flagSet.String("pid-file", pidFilePath, "")
|
|
flagSet.String("console", consolePath, "")
|
|
flagSet.String("console-socket", consoleSocket, "")
|
|
flagSet.Bool("detach", detach, "")
|
|
flagSet.String("process-label", processLabel, "")
|
|
|
|
processPath := filepath.Join(tmpdir, "process.json")
|
|
flagSet.String("process", processPath, "")
|
|
|
|
flagSet.Parse([]string{testContainerID})
|
|
ctx := cli.NewContext(cli.NewApp(), flagSet, nil)
|
|
|
|
processJSON := `{
|
|
"consoleSize": {
|
|
"height": 15,
|
|
"width": 15
|
|
},
|
|
"terminal": true,
|
|
"user": {
|
|
"uid": 0,
|
|
"gid": 0
|
|
},
|
|
"args": [
|
|
"sh"
|
|
],
|
|
"env": [
|
|
"TERM=xterm",
|
|
"foo=bar"
|
|
],
|
|
"cwd": "/"
|
|
}`
|
|
|
|
f, err := os.OpenFile(processPath, os.O_RDWR|os.O_CREATE, testFileMode)
|
|
assert.NoError(err)
|
|
|
|
_, err = f.WriteString(processJSON)
|
|
assert.NoError(err)
|
|
f.Close()
|
|
|
|
defer os.Remove(processPath)
|
|
|
|
process := &oci.CompatOCIProcess{}
|
|
params, err := generateExecParams(ctx, process)
|
|
assert.NoError(err)
|
|
|
|
assert.Equal(params.pidFile, pidFilePath)
|
|
assert.Equal(params.console, consolePath)
|
|
assert.Equal(params.consoleSock, consoleSocket)
|
|
assert.Equal(params.processLabel, processLabel)
|
|
assert.Equal(params.noSubreaper, false)
|
|
assert.Equal(params.detach, detach)
|
|
|
|
assert.Equal(params.ociProcess.Terminal, true)
|
|
assert.Equal(params.ociProcess.ConsoleSize.Height, uint(15))
|
|
assert.Equal(params.ociProcess.ConsoleSize.Width, uint(15))
|
|
assert.Equal(params.ociProcess.User.UID, uint32(0))
|
|
assert.Equal(params.ociProcess.User.GID, uint32(0))
|
|
assert.Equal(params.ociProcess.Cwd, "/")
|
|
assert.Equal(params.ociProcess.Env[0], "TERM=xterm")
|
|
assert.Equal(params.ociProcess.Env[1], "foo=bar")
|
|
}
|