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// Copyright (c) 2022, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package cli
import (
"runtime"
"strconv"
"testing"
"github.com/sylabs/singularity/v4/internal/pkg/cgroups"
)
func Test_getBlkioLimits(t *testing.T) {
tests := []struct {
name string
blkioWeight int
blkioWeightDevice []string
wantBlkio bool
wantError bool
blkioCheck func(t *testing.T, b *cgroups.LinuxBlockIO)
}{
{
name: "None",
wantBlkio: false,
wantError: false,
},
{
name: "GoodWeight",
blkioWeight: 123,
wantBlkio: true,
wantError: false,
blkioCheck: func(t *testing.T, b *cgroups.LinuxBlockIO) {
if b.Weight == nil {
t.Fatalf("weight not set")
}
if *b.Weight != 123 {
t.Errorf("expected 123, got %d", *b.Weight)
}
},
},
{
name: "WeightTooLow",
blkioWeight: 1,
wantBlkio: false,
wantError: true,
},
{
name: "WeightTooHigh",
blkioWeight: 1000000,
wantBlkio: false,
wantError: true,
},
{
name: "GoodWeightDevice",
blkioWeightDevice: []string{"/dev/zero:123"},
wantBlkio: true,
wantError: false,
blkioCheck: func(t *testing.T, b *cgroups.LinuxBlockIO) {
if len(b.WeightDevice) != 1 {
t.Errorf("expected 1 device entry, got %d", len(b.WeightDevice))
}
if b.WeightDevice[0].Major != 1 {
t.Errorf("expected major 1 , got %d", b.WeightDevice[0].Major)
}
if b.WeightDevice[0].Minor != 5 {
t.Errorf("expected minor 5 , got %d", b.WeightDevice[0].Minor)
}
if b.WeightDevice[0].Weight == nil {
t.Fatalf("weight not set")
}
if *b.WeightDevice[0].Weight != 123 {
t.Errorf("expected weight 123 , got %d", *b.WeightDevice[0].Weight)
}
},
},
{
name: "WeightDeviceBadPath",
blkioWeightDevice: []string{"/not/a/file:123"},
wantBlkio: false,
wantError: true,
},
{
name: "WeightDeviceNotDevice",
blkioWeightDevice: []string{"/etc/hosts:123"},
wantBlkio: false,
wantError: true,
},
{
name: "WeightDeviceWeightTooLow",
blkioWeightDevice: []string{"/dev/zero:1"},
wantBlkio: false,
wantError: true,
},
{
name: "WeightDeviceWeightTooHigh",
blkioWeightDevice: []string{"/dev/zero:100000"},
wantBlkio: false,
wantError: true,
},
{
name: "MultipleWeightDevice",
blkioWeightDevice: []string{"/dev/zero:123", "/dev/null:123"},
wantBlkio: true,
wantError: false,
blkioCheck: func(t *testing.T, b *cgroups.LinuxBlockIO) {
if len(b.WeightDevice) != 2 {
t.Errorf("expected 2 device entries, got %d", len(b.WeightDevice))
}
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
blkioWeight = tt.blkioWeight
blkioWeightDevice = tt.blkioWeightDevice
blkio, err := getBlkioLimits()
if err != nil && !tt.wantError {
t.Errorf("unexpected error: %s", err)
}
if err == nil && tt.wantError {
t.Errorf("unexpected success: %s", err)
}
if tt.wantBlkio && blkio == nil {
t.Errorf("expected blkio struct, got nil")
}
if !tt.wantBlkio && blkio != nil {
t.Errorf("expected nil, got %v", blkio)
}
if tt.blkioCheck != nil && blkio != nil {
tt.blkioCheck(t, blkio)
}
})
}
}
func Test_getCpuLimits(t *testing.T) {
tests := []struct {
name string
cpuShares int
cpusetCPUs string
cpusetMems string
cpus string
wantCPU bool
wantError bool
cpuCheck func(t *testing.T, c *cgroups.LinuxCPU)
}{
{
name: "None",
wantCPU: false,
wantError: false,
},
{
name: "GoodShares",
cpuShares: 123,
wantCPU: true,
wantError: false,
cpuCheck: func(t *testing.T, c *cgroups.LinuxCPU) {
s := c.Shares
if s == nil {
t.Fatalf("shares not set")
}
if *s != 123 {
t.Errorf("expected 123, got %d", *s)
}
},
},
{
name: "GoodCpuset",
cpusetCPUs: "1-4",
cpusetMems: "1-4",
wantCPU: true,
wantError: false,
cpuCheck: func(t *testing.T, c *cgroups.LinuxCPU) {
if c.Cpus != "1-4" {
t.Errorf("expected 1-4, got %s", c.Cpus)
}
if c.Mems != "1-4" {
t.Errorf("expected 1-4, got %s", c.Mems)
}
},
},
{
name: "GoodCpus",
cpus: "0.5",
wantCPU: true,
wantError: false,
cpuCheck: func(t *testing.T, c *cgroups.LinuxCPU) {
if c.Period == nil {
t.Fatalf("period not set")
}
if *c.Period != 100000 {
t.Errorf("period should always be 100000 (us), got %d", *c.Period)
}
if c.Quota == nil {
t.Fatalf("quota not set")
}
if *c.Quota != 50000 {
t.Errorf("quota should be 50000 (us), got %d", *c.Quota)
}
},
},
{
name: "CpusInvalid",
cpus: "abc",
wantCPU: false,
wantError: true,
},
{
name: "CpusTooLow",
cpus: "0.001",
wantCPU: false,
wantError: true,
},
{
name: "CpusTooHigh",
cpus: strconv.Itoa(runtime.NumCPU() + 1),
wantCPU: false,
wantError: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
cpuShares = tt.cpuShares
cpuSetCPUs = tt.cpusetCPUs
cpuSetMems = tt.cpusetMems
cpus = tt.cpus
cpu, err := getCPULimits()
if err != nil && !tt.wantError {
t.Errorf("unexpected error: %s", err)
}
if err == nil && tt.wantError {
t.Errorf("unexpected success: %s", err)
}
if tt.wantCPU && cpu == nil {
t.Errorf("expected cpu struct, got nil")
}
if !tt.wantCPU && cpu != nil {
t.Errorf("expected nil, got %v", cpu)
}
if tt.cpuCheck != nil && cpu != nil {
tt.cpuCheck(t, cpu)
}
})
}
}
func Test_getMemoryLimits(t *testing.T) {
tests := []struct {
name string
memory string
memoryReservation string
memorySwap string
oomKillDisable bool
wantMem bool
wantError bool
memCheck func(t *testing.T, m *cgroups.LinuxMemory)
}{
{
name: "None",
wantMem: false,
wantError: false,
},
{
name: "InvalidMemory",
memory: "abc",
wantMem: false,
wantError: true,
},
{
name: "NegativeMemory",
memory: "-1",
wantMem: false,
wantError: true,
},
{
name: "NumericMemory",
memory: "1073741824",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Limit == nil {
t.Fatalf("limit not set")
}
if *m.Limit != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Limit)
}
},
},
{
name: "SuffixMemory",
memory: "1024M",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Limit == nil {
t.Fatalf("limit not set")
}
if *m.Limit != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Limit)
}
},
},
{
name: "InvalidMemoryReservation",
memory: "abc",
wantMem: false,
wantError: true,
},
{
name: "NegativeMemoryReservation",
memory: "-1",
wantMem: false,
wantError: true,
},
{
name: "NumericMemoryReservation",
memoryReservation: "1073741824",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Reservation == nil {
t.Fatalf("reservation not set")
}
if *m.Reservation != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Reservation)
}
},
},
{
name: "SuffixMemoryReservation",
memoryReservation: "1024M",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Reservation == nil {
t.Fatalf("reservation not set")
}
if *m.Reservation != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Reservation)
}
},
},
{
name: "NumericMemorySwap",
memorySwap: "1073741824",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Swap == nil {
t.Fatalf("swap not set")
}
if *m.Swap != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Swap)
}
},
},
{
name: "SuffixMemorySwap",
memorySwap: "1024M",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Swap == nil {
t.Fatalf("swap not set")
}
if *m.Swap != 1073741824 {
t.Errorf("expected 1073741824, got %d", *m.Swap)
}
},
},
{
name: "UnlimitedMemorySwap",
memorySwap: "-1",
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.Swap == nil {
t.Fatalf("swap not set")
}
if *m.Swap != -1 {
t.Errorf("expected -1, got %d", *m.Swap)
}
},
},
{
name: "OomKillDsiable",
oomKillDisable: true,
wantMem: true,
wantError: false,
memCheck: func(t *testing.T, m *cgroups.LinuxMemory) {
if m.DisableOOMKiller == nil {
t.Fatalf("DisableOOMKiller not set")
}
if *m.DisableOOMKiller != true {
t.Errorf("DisableOOMKiller not true")
}
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
memory = tt.memory
memoryReservation = tt.memoryReservation
memorySwap = tt.memorySwap
oomKillDisable = tt.oomKillDisable
mem, err := getMemoryLimits()
if err != nil && !tt.wantError {
t.Errorf("unexpected error: %s", err)
}
if err == nil && tt.wantError {
t.Errorf("unexpected success: %s", err)
}
if tt.wantMem && mem == nil {
t.Errorf("expected mem struct, got nil")
}
if !tt.wantMem && mem != nil {
t.Errorf("expected nil, got %v", mem)
}
if tt.memCheck != nil && mem != nil {
tt.memCheck(t, mem)
}
})
}
}
func Test_getPidsLimits(t *testing.T) {
tests := []struct {
name string
pidsLimit int
wantPids bool
wantError bool
pidsCheck func(t *testing.T, p *cgroups.LinuxPids)
}{
{
name: "None",
wantPids: false,
wantError: false,
},
{
name: "GoodPidsLimit",
pidsLimit: 123,
wantPids: true,
wantError: false,
pidsCheck: func(t *testing.T, p *cgroups.LinuxPids) {
if p.Limit != 123 {
t.Errorf("expected 123, got %d", p.Limit)
}
},
},
{
name: "UnlimitedPidsLimit",
pidsLimit: -1,
wantPids: true,
wantError: false,
pidsCheck: func(t *testing.T, p *cgroups.LinuxPids) {
if p.Limit != -1 {
t.Errorf("expected -1, got %d", p.Limit)
}
},
},
{
name: "InvalidPidsLimit",
pidsLimit: -99,
wantPids: false,
wantError: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
pidsLimit = tt.pidsLimit
pids, err := getPidsLimits()
if err != nil && !tt.wantError {
t.Errorf("unexpected error: %s", err)
}
if err == nil && tt.wantError {
t.Errorf("unexpected success: %s", err)
}
if tt.wantPids && pids == nil {
t.Errorf("expected cpu struct, got nil")
}
if !tt.wantPids && pids != nil {
t.Errorf("expected nil, got %v", pids)
}
if tt.pidsCheck != nil && pids != nil {
tt.pidsCheck(t, pids)
}
})
}
}
|
