293 lines
7.1 KiB
Go
293 lines
7.1 KiB
Go
package command
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import (
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"bytes"
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"fmt"
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"strings"
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"testing"
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"github.com/hashicorp/nomad/helper/uuid"
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"github.com/hashicorp/nomad/nomad/mock"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/hashicorp/nomad/testutil"
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"github.com/mitchellh/cli"
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"github.com/posener/complete"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// static check
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var _ cli.Command = &AllocExecCommand{}
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func TestAllocExecCommand_Fails(t *testing.T) {
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t.Parallel()
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srv, client, url := testServer(t, true, nil)
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defer srv.Shutdown()
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cases := []struct {
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name string
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args []string
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expectedError string
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}{
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{
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"misuse",
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[]string{"bad"},
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commandErrorText(&AllocExecCommand{}),
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},
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{
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"connection failure",
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[]string{"-address=nope", "26470238-5CF2-438F-8772-DC67CFB0705C", "/bin/bash"},
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"Error querying allocation",
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},
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{
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"not found alloc",
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[]string{"-address=" + url, "26470238-5CF2-438F-8772-DC67CFB0705C", "/bin/bash"},
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"No allocation(s) with prefix or id",
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},
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{
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"not found job",
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[]string{"-address=" + url, "-job", "example", "/bin/bash"},
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`job "example" doesn't exist`,
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},
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{
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"too short allocis",
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[]string{"-address=" + url, "2", "/bin/bash"},
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"Alloc ID must contain at least two characters",
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},
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{
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"missing command",
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[]string{"-address=" + url, "26470238-5CF2-438F-8772-DC67CFB0705C"},
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"A command is required",
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},
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{
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"long escaped char",
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[]string{"-address=" + url, "-e", "long_escape", "26470238-5CF2-438F-8772-DC67CFB0705C", "/bin/bash"},
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"a single character",
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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ui := cli.NewMockUi()
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cmd := &AllocExecCommand{Meta: Meta{Ui: ui}}
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code := cmd.Run(c.args)
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require.Equal(t, 1, code)
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require.Contains(t, ui.ErrorWriter.String(), c.expectedError)
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ui.ErrorWriter.Reset()
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ui.OutputWriter.Reset()
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})
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}
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// Wait for a node to be ready
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testutil.WaitForResult(func() (bool, error) {
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nodes, _, err := client.Nodes().List(nil)
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if err != nil {
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return false, err
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}
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for _, node := range nodes {
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if _, ok := node.Drivers["mock_driver"]; ok &&
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node.Status == structs.NodeStatusReady {
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return true, nil
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}
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}
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return false, fmt.Errorf("no ready nodes")
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}, func(err error) {
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require.NoError(t, err)
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})
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t.Run("non existent task", func(t *testing.T) {
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ui := cli.NewMockUi()
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cmd := &AllocExecCommand{Meta: Meta{Ui: ui}}
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jobID := "job1_sfx"
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job1 := testJob(jobID)
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resp, _, err := client.Jobs().Register(job1, nil)
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require.NoError(t, err)
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code := waitForSuccess(ui, client, fullId, t, resp.EvalID)
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require.Zero(t, code, "status code not zero")
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// get an alloc id
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allocId1 := ""
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if allocs, _, err := client.Jobs().Allocations(jobID, false, nil); err == nil {
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if len(allocs) > 0 {
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allocId1 = allocs[0].ID
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}
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}
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require.NotEmpty(t, allocId1, "unable to find allocation")
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// by alloc
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require.Equal(t, 1, cmd.Run([]string{"-address=" + url, "-task=nonexistenttask1", allocId1, "/bin/bash"}))
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require.Contains(t, ui.ErrorWriter.String(), "Could not find task named: nonexistenttask1")
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ui.ErrorWriter.Reset()
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// by jobID
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require.Equal(t, 1, cmd.Run([]string{"-address=" + url, "-task=nonexistenttask2", "-job", jobID, "/bin/bash"}))
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require.Contains(t, ui.ErrorWriter.String(), "Could not find task named: nonexistenttask2")
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ui.ErrorWriter.Reset()
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})
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}
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func TestAllocExecCommand_AutocompleteArgs(t *testing.T) {
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assert := assert.New(t)
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t.Parallel()
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srv, _, url := testServer(t, true, nil)
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defer srv.Shutdown()
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ui := cli.NewMockUi()
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cmd := &AllocExecCommand{Meta: Meta{Ui: ui, flagAddress: url}}
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// Create a fake alloc
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state := srv.Agent.Server().State()
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a := mock.Alloc()
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assert.Nil(state.UpsertAllocs(1000, []*structs.Allocation{a}))
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prefix := a.ID[:5]
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args := complete.Args{Last: prefix}
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predictor := cmd.AutocompleteArgs()
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res := predictor.Predict(args)
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assert.Equal(1, len(res))
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assert.Equal(a.ID, res[0])
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}
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func TestAllocExecCommand_Run(t *testing.T) {
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t.Parallel()
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srv, client, url := testServer(t, true, nil)
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defer srv.Shutdown()
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// Wait for a node to be ready
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testutil.WaitForResult(func() (bool, error) {
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nodes, _, err := client.Nodes().List(nil)
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if err != nil {
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return false, err
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}
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for _, node := range nodes {
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if _, ok := node.Drivers["mock_driver"]; ok &&
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node.Status == structs.NodeStatusReady {
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return true, nil
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}
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}
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return false, fmt.Errorf("no ready nodes")
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}, func(err error) {
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require.NoError(t, err)
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})
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jobID := uuid.Generate()
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job := testJob(jobID)
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job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
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"run_for": "10s",
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"exec_command": map[string]interface{}{
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"run_for": "1ms",
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"exit_code": 21,
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"stdout_string": "sample stdout output\n",
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"stderr_string": "sample stderr output\n",
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},
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}
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resp, _, err := client.Jobs().Register(job, nil)
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require.NoError(t, err)
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evalUi := cli.NewMockUi()
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code := waitForSuccess(evalUi, client, fullId, t, resp.EvalID)
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require.Equal(t, 0, code, "failed to get status - output: %v", evalUi.ErrorWriter.String())
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allocId := ""
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testutil.WaitForResult(func() (bool, error) {
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allocs, _, err := client.Jobs().Allocations(jobID, false, nil)
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if err != nil {
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return false, fmt.Errorf("failed to get allocations: %v", err)
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}
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if len(allocs) < 0 {
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return false, fmt.Errorf("no allocations yet")
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}
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alloc := allocs[0]
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if alloc.ClientStatus != "running" {
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return false, fmt.Errorf("alloc is not running yet: %v", alloc.ClientStatus)
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}
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allocId = alloc.ID
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return true, nil
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}, func(err error) {
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require.NoError(t, err)
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})
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cases := []struct {
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name string
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command string
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stdin string
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stdout string
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stderr string
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exitCode int
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}{
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{
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name: "basic stdout/err",
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command: "simplecommand",
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stdin: "",
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stdout: "sample stdout output",
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stderr: "sample stderr output",
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exitCode: 21,
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},
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{
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name: "notty: streamining input",
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command: "showinput",
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stdin: "hello from stdin",
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stdout: "TTY: false\nStdin:\nhello from stdin",
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exitCode: 0,
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},
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}
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for _, c := range cases {
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t.Run("by id: "+c.name, func(t *testing.T) {
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ui := cli.NewMockUi()
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var stdout, stderr bufferCloser
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cmd := &AllocExecCommand{
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Meta: Meta{Ui: ui},
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Stdin: strings.NewReader(c.stdin),
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Stdout: &stdout,
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Stderr: &stderr,
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}
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code = cmd.Run([]string{"-address=" + url, allocId, c.command})
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assert.Equal(t, c.exitCode, code)
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assert.Equal(t, c.stdout, strings.TrimSpace(stdout.String()))
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assert.Equal(t, c.stderr, strings.TrimSpace(stderr.String()))
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})
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t.Run("by job: "+c.name, func(t *testing.T) {
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ui := cli.NewMockUi()
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var stdout, stderr bufferCloser
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cmd := &AllocExecCommand{
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Meta: Meta{Ui: ui},
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Stdin: strings.NewReader(c.stdin),
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Stdout: &stdout,
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Stderr: &stderr,
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}
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code = cmd.Run([]string{"-address=" + url, "-job", jobID, c.command})
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assert.Equal(t, c.exitCode, code)
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assert.Equal(t, c.stdout, strings.TrimSpace(stdout.String()))
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assert.Equal(t, c.stderr, strings.TrimSpace(stderr.String()))
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})
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}
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}
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type bufferCloser struct {
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bytes.Buffer
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}
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func (b *bufferCloser) Close() error {
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return nil
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}
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