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|
package units
import (
"fmt"
"math"
"strconv"
"testing"
)
func ExampleParseUlimit() {
fmt.Println(ParseUlimit("nofile=512:1024"))
fmt.Println(ParseUlimit("nofile=1024"))
fmt.Println(ParseUlimit("cpu=2:4"))
fmt.Println(ParseUlimit("cpu=6"))
}
func TestParseUlimitValid(t *testing.T) {
u1 := &Ulimit{"nofile", 1024, 512}
if u2, _ := ParseUlimit("nofile=512:1024"); *u1 != *u2 {
t.Fatalf("expected %q, but got %q", u1, u2)
}
}
func TestParseUlimitInvalidLimitType(t *testing.T) {
if _, err := ParseUlimit("notarealtype=1024:1024"); err == nil {
t.Fatalf("expected error on invalid ulimit type")
}
}
func TestParseUlimitBadFormat(t *testing.T) {
if _, err := ParseUlimit("nofile:1024:1024"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile="); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile=:"); err == nil {
t.Fatal("expected error on bad syntax")
}
if _, err := ParseUlimit("nofile=:1024"); err == nil {
t.Fatal("expected error on bad syntax")
}
}
func TestParseUlimitHardLessThanSoft(t *testing.T) {
if _, err := ParseUlimit("nofile=1024:1"); err == nil {
t.Fatal("expected error on hard limit less than soft limit")
}
if _, err := ParseUlimit("nofile=-1:1024"); err == nil {
t.Fatal("expected error on hard limit less than soft limit")
}
}
func TestParseUlimitUnlimited(t *testing.T) {
tt := []struct {
in string
expected Ulimit
}{
{
in: "nofile=-1",
expected: Ulimit{Name: "nofile", Soft: -1, Hard: -1},
},
{
in: "nofile=1024",
expected: Ulimit{Name: "nofile", Soft: 1024, Hard: 1024},
},
{
in: "nofile=1024:-1",
expected: Ulimit{Name: "nofile", Soft: 1024, Hard: -1},
},
{
in: "nofile=-1:-1",
expected: Ulimit{Name: "nofile", Soft: -1, Hard: -1},
},
}
for _, tc := range tt {
t.Run(tc.in, func(t *testing.T) {
u, err := ParseUlimit(tc.in)
if err != nil {
t.Fatalf("unexpected error when setting unlimited hard limit: %v", err)
}
if u.Name != tc.expected.Name {
t.Fatalf("unexpected name. expected %s, got %s", tc.expected.Name, u.Name)
}
if u.Soft != tc.expected.Soft {
t.Fatalf("unexpected soft limit. expected %d, got %d", tc.expected.Soft, u.Soft)
}
if u.Hard != tc.expected.Hard {
t.Fatalf("unexpected hard limit. expected %d, got %d", tc.expected.Hard, u.Hard)
}
})
}
}
func TestParseUlimitInvalidValueType(t *testing.T) {
if _, err := ParseUlimit("nofile=asdf"); err == nil {
t.Fatal("expected error on bad value type, but got no error")
} else if _, ok := err.(*strconv.NumError); !ok {
t.Fatalf("expected error on bad value type, but got `%s`", err)
}
if _, err := ParseUlimit("nofile=1024:asdf"); err == nil {
t.Fatal("expected error on bad value type, but got no error")
} else if _, ok := err.(*strconv.NumError); !ok {
t.Fatalf("expected error on bad value type, but got `%s`", err)
}
}
func TestParseUlimitTooManyValueArgs(t *testing.T) {
if _, err := ParseUlimit("nofile=1024:1:50"); err == nil {
t.Fatalf("expected error on more than two value arguments")
}
}
func TestUlimitStringOutput(t *testing.T) {
u := &Ulimit{"nofile", 1024, 512}
if s := u.String(); s != "nofile=512:1024" {
t.Fatal("expected String to return nofile=512:1024, but got", s)
}
}
func TestGetRlimit(t *testing.T) {
tt := []struct {
ulimit Ulimit
rlimit Rlimit
}{
{Ulimit{"core", 10, 12}, Rlimit{rlimitCore, 10, 12}},
{Ulimit{"cpu", 1, 10}, Rlimit{rlimitCPU, 1, 10}},
{Ulimit{"data", 5, 0}, Rlimit{rlimitData, 5, 0}},
{Ulimit{"fsize", 2, 2}, Rlimit{rlimitFsize, 2, 2}},
{Ulimit{"locks", 0, 0}, Rlimit{rlimitLocks, 0, 0}},
{Ulimit{"memlock", 10, 10}, Rlimit{rlimitMemlock, 10, 10}},
{Ulimit{"msgqueue", 9, 1}, Rlimit{rlimitMsgqueue, 9, 1}},
{Ulimit{"nice", 9, 9}, Rlimit{rlimitNice, 9, 9}},
{Ulimit{"nofile", 4, 100}, Rlimit{rlimitNofile, 4, 100}},
{Ulimit{"nproc", 5, 5}, Rlimit{rlimitNproc, 5, 5}},
{Ulimit{"rss", 0, 5}, Rlimit{rlimitRss, 0, 5}},
{Ulimit{"rtprio", 100, 65}, Rlimit{rlimitRtprio, 100, 65}},
{Ulimit{"rttime", 55, 102}, Rlimit{rlimitRttime, 55, 102}},
{Ulimit{"sigpending", 14, 20}, Rlimit{rlimitSigpending, 14, 20}},
{Ulimit{"stack", 1, 1}, Rlimit{rlimitStack, 1, 1}},
{Ulimit{"stack", -1, -1}, Rlimit{rlimitStack, math.MaxUint64, math.MaxUint64}},
}
for _, te := range tt {
res, err := te.ulimit.GetRlimit()
if err != nil {
t.Errorf("expected not to fail: %s", err)
}
if res.Type != te.rlimit.Type {
t.Errorf("expected Type to be %d but got %d",
te.rlimit.Type, res.Type)
}
if res.Soft != te.rlimit.Soft {
t.Errorf("expected Soft to be %d but got %d",
te.rlimit.Soft, res.Soft)
}
if res.Hard != te.rlimit.Hard {
t.Errorf("expected Hard to be %d but got %d",
te.rlimit.Hard, res.Hard)
}
}
}
func TestGetRlimitBadUlimitName(t *testing.T) {
name := "bla"
uLimit := Ulimit{name, 0, 0}
if _, err := uLimit.GetRlimit(); err == nil {
t.Error("expected error on bad Ulimit name")
}
}
|
