280 lines
6.6 KiB
Go
280 lines
6.6 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/ci"
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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/shoenig/test/must"
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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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ci.Parallel(t)
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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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"alloc id missing",
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[]string{},
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`An allocation ID is required`,
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},
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{
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"alloc id too short",
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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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"alloc not found",
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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 "26470238-5CF2-438F-8772-DC67CFB0705C"`,
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},
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{
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"alloc not found with odd-length prefix",
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[]string{"-address=" + url, "26470238-5CF", "/bin/bash"},
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`No allocation(s) with prefix or id "26470238-5CF"`,
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},
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{
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"job id missing",
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[]string{"-job"},
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`A job ID is required`,
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},
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{
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"job not found",
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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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"command missing",
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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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"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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"escape char too long",
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[]string{"-address=" + url, "-e", "es", "26470238-5CF2-438F-8772-DC67CFB0705C", "/bin/bash"},
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`-e requires 'none' or 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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must.One(t, code)
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out := ui.ErrorWriter.String()
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must.StrContains(t, out, 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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waitForNodes(t, client)
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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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must.NoError(t, err)
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code := waitForSuccess(ui, client, fullId, t, resp.EvalID)
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must.Zero(t, code)
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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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must.NotEq(t, "", allocId1)
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// by alloc
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code = cmd.Run([]string{"-address=" + url, "-task=nonexistenttask1", allocId1, "/bin/bash"})
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must.One(t, code)
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out := ui.ErrorWriter.String()
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must.StrContains(t, out, "Could not find task named: nonexistenttask1")
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ui.ErrorWriter.Reset()
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// by jobID
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code = cmd.Run([]string{"-address=" + url, "-task=nonexistenttask2", "-job", jobID, "/bin/bash"})
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must.One(t, code)
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out = ui.ErrorWriter.String()
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must.StrContains(t, out, "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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ci.Parallel(t)
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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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must.NoError(t, state.UpsertAllocs(structs.MsgTypeTestSetup, 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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must.Len(t, 1, res)
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must.Eq(t, a.ID, res[0])
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}
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func TestAllocExecCommand_Run(t *testing.T) {
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ci.Parallel(t)
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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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waitForNodes(t, client)
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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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must.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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must.Zero(t, code)
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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) { must.NoError(t, err) })
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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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must.Eq(t, c.exitCode, code)
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must.Eq(t, c.stdout, strings.TrimSpace(stdout.String()))
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must.Eq(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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must.Eq(t, c.exitCode, code)
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must.Eq(t, c.stdout, strings.TrimSpace(stdout.String()))
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must.Eq(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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