open-nomad/command/helpers_test.go

329 lines
6.5 KiB
Go

package command
import (
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"reflect"
"strings"
"testing"
"time"
"github.com/hashicorp/nomad/api"
"github.com/hashicorp/nomad/helper"
"github.com/hashicorp/nomad/helper/flatmap"
"github.com/kr/pretty"
"github.com/mitchellh/cli"
)
func TestHelpers_FormatKV(t *testing.T) {
t.Parallel()
in := []string{"alpha|beta", "charlie|delta", "echo|"}
out := formatKV(in)
expect := "alpha = beta\n"
expect += "charlie = delta\n"
expect += "echo = <none>"
if out != expect {
t.Fatalf("expect: %s, got: %s", expect, out)
}
}
func TestHelpers_FormatList(t *testing.T) {
t.Parallel()
in := []string{"alpha|beta||delta"}
out := formatList(in)
expect := "alpha beta <none> delta"
if out != expect {
t.Fatalf("expect: %s, got: %s", expect, out)
}
}
func TestHelpers_NodeID(t *testing.T) {
t.Parallel()
srv, _, _ := testServer(t, false, nil)
defer srv.Shutdown()
meta := Meta{Ui: new(cli.MockUi)}
client, err := meta.Client()
if err != nil {
t.FailNow()
}
// This is because there is no client
if _, err := getLocalNodeID(client); err == nil {
t.Fatalf("getLocalNodeID() should fail")
}
}
func TestHelpers_LineLimitReader_NoTimeLimit(t *testing.T) {
t.Parallel()
helloString := `hello
world
this
is
a
test`
noLines := "jskdfhjasdhfjkajkldsfdlsjkahfkjdsafa"
cases := []struct {
Input string
Output string
Lines int
SearchLimit int
}{
{
Input: helloString,
Output: helloString,
Lines: 6,
SearchLimit: 1000,
},
{
Input: helloString,
Output: `world
this
is
a
test`,
Lines: 5,
SearchLimit: 1000,
},
{
Input: helloString,
Output: `test`,
Lines: 1,
SearchLimit: 1000,
},
{
Input: helloString,
Output: "",
Lines: 0,
SearchLimit: 1000,
},
{
Input: helloString,
Output: helloString,
Lines: 6,
SearchLimit: 1, // Exceed the limit
},
{
Input: noLines,
Output: noLines,
Lines: 10,
SearchLimit: 1000,
},
{
Input: noLines,
Output: noLines,
Lines: 10,
SearchLimit: 2,
},
}
for i, c := range cases {
in := ioutil.NopCloser(strings.NewReader(c.Input))
limit := NewLineLimitReader(in, c.Lines, c.SearchLimit, 0)
outBytes, err := ioutil.ReadAll(limit)
if err != nil {
t.Fatalf("case %d failed: %v", i, err)
}
out := string(outBytes)
if out != c.Output {
t.Fatalf("case %d: got %q; want %q", i, out, c.Output)
}
}
}
type testReadCloser struct {
data chan []byte
}
func (t *testReadCloser) Read(p []byte) (n int, err error) {
select {
case b, ok := <-t.data:
if !ok {
return 0, io.EOF
}
return copy(p, b), nil
case <-time.After(10 * time.Millisecond):
return 0, nil
}
}
func (t *testReadCloser) Close() error {
close(t.data)
return nil
}
func TestHelpers_LineLimitReader_TimeLimit(t *testing.T) {
t.Parallel()
// Create the test reader
in := &testReadCloser{data: make(chan []byte)}
// Set up the reader such that it won't hit the line/buffer limit and could
// only terminate if it hits the time limit
limit := NewLineLimitReader(in, 1000, 1000, 100*time.Millisecond)
expected := []byte("hello world")
resultCh := make(chan struct{})
go func() {
outBytes, err := ioutil.ReadAll(limit)
if err != nil {
t.Fatalf("ReadAll failed: %v", err)
}
if reflect.DeepEqual(outBytes, expected) {
close(resultCh)
return
}
}()
// Send the data
in.data <- expected
in.Close()
select {
case <-resultCh:
case <-time.After(1 * time.Second):
t.Fatalf("did not exit by time limit")
}
}
const (
job = `job "job1" {
type = "service"
datacenters = [ "dc1" ]
group "group1" {
count = 1
task "task1" {
driver = "exec"
resources = {}
}
restart{
attempts = 10
mode = "delay"
interval = "15s"
}
}
}`
)
var (
expectedApiJob = &api.Job{
ID: helper.StringToPtr("job1"),
Name: helper.StringToPtr("job1"),
Type: helper.StringToPtr("service"),
Datacenters: []string{"dc1"},
TaskGroups: []*api.TaskGroup{
{
Name: helper.StringToPtr("group1"),
Count: helper.IntToPtr(1),
RestartPolicy: &api.RestartPolicy{
Attempts: helper.IntToPtr(10),
Interval: helper.TimeToPtr(15 * time.Second),
Mode: helper.StringToPtr("delay"),
},
Tasks: []*api.Task{
{
Driver: "exec",
Name: "task1",
Resources: &api.Resources{},
},
},
},
},
}
)
// Test APIJob with local jobfile
func TestJobGetter_LocalFile(t *testing.T) {
t.Parallel()
fh, err := ioutil.TempFile("", "nomad")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.Remove(fh.Name())
_, err = fh.WriteString(job)
if err != nil {
t.Fatalf("err: %s", err)
}
j := &JobGetter{}
aj, err := j.ApiJob(fh.Name())
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(expectedApiJob, aj) {
eflat := flatmap.Flatten(expectedApiJob, nil, false)
aflat := flatmap.Flatten(aj, nil, false)
t.Fatalf("got:\n%v\nwant:\n%v", aflat, eflat)
}
}
// Test StructJob with jobfile from HTTP Server
func TestJobGetter_HTTPServer(t *testing.T) {
t.Parallel()
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, job)
})
go http.ListenAndServe("127.0.0.1:12345", nil)
// Wait until HTTP Server starts certainly
time.Sleep(100 * time.Millisecond)
j := &JobGetter{}
aj, err := j.ApiJob("http://127.0.0.1:12345/")
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(expectedApiJob, aj) {
for _, d := range pretty.Diff(expectedApiJob, aj) {
t.Logf(d)
}
t.Fatalf("Unexpected file")
}
}
func TestPrettyTimeDiff(t *testing.T) {
test_cases := []struct {
d time.Duration
exp string
}{
{-740 * time.Second, "12m20s ago"},
{-12 * time.Minute, "12m ago"},
{-60 * time.Minute, "1h ago"},
{-80 * time.Minute, "1h20m ago"},
{-6 * time.Hour, "6h ago"},
{-22165 * time.Second, "6h9m ago"},
{-100 * time.Hour, "4d4h ago"},
{-438000 * time.Minute, "10mo4d ago"},
{-20460 * time.Hour, "2y4mo ago"},
}
for _, tc := range test_cases {
t2 := time.Now().Add(tc.d)
out := prettyTimeDiff(t2, time.Now())
if out != tc.exp {
t.Fatalf("expected :%v but got :%v", tc.exp, out)
}
}
var t1 time.Time
out := prettyTimeDiff(t1, time.Now())
if out != "" {
t.Fatalf("Expected empty output but got:%v", out)
}
}