135 lines
3.6 KiB
Go
135 lines
3.6 KiB
Go
package fs
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import (
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"testing"
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"github.com/docker/libcontainer/cgroups"
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)
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const (
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memoryStatContents = `cache 512
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rss 1024`
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memoryUsageContents = "2048\n"
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memoryMaxUsageContents = "4096\n"
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memoryFailcnt = "100\n"
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)
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func TestMemoryStats(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": memoryStatContents,
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"memory.usage_in_bytes": memoryUsageContents,
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"memory.max_usage_in_bytes": memoryMaxUsageContents,
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"memory.failcnt": memoryFailcnt,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err != nil {
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t.Fatal(err)
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}
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expectedStats := cgroups.MemoryStats{Usage: 2048, MaxUsage: 4096, Failcnt: 100, Stats: map[string]uint64{"cache": 512, "rss": 1024}}
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expectMemoryStatEquals(t, expectedStats, actualStats.MemoryStats)
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}
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func TestMemoryStatsNoStatFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.usage_in_bytes": memoryUsageContents,
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"memory.max_usage_in_bytes": memoryMaxUsageContents,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestMemoryStatsNoUsageFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": memoryStatContents,
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"memory.max_usage_in_bytes": memoryMaxUsageContents,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err == nil {
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t.Fatal("Expected failure")
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}
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}
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func TestMemoryStatsNoMaxUsageFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": memoryStatContents,
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"memory.usage_in_bytes": memoryUsageContents,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err == nil {
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t.Fatal("Expected failure")
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}
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}
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func TestMemoryStatsBadStatFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": "rss rss",
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"memory.usage_in_bytes": memoryUsageContents,
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"memory.max_usage_in_bytes": memoryMaxUsageContents,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err == nil {
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t.Fatal("Expected failure")
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}
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}
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func TestMemoryStatsBadUsageFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": memoryStatContents,
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"memory.usage_in_bytes": "bad",
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"memory.max_usage_in_bytes": memoryMaxUsageContents,
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err == nil {
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t.Fatal("Expected failure")
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}
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}
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func TestMemoryStatsBadMaxUsageFile(t *testing.T) {
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helper := NewCgroupTestUtil("memory", t)
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defer helper.cleanup()
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helper.writeFileContents(map[string]string{
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"memory.stat": memoryStatContents,
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"memory.usage_in_bytes": memoryUsageContents,
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"memory.max_usage_in_bytes": "bad",
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})
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memory := &MemoryGroup{}
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actualStats := *cgroups.NewStats()
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err := memory.GetStats(helper.CgroupPath, &actualStats)
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if err == nil {
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t.Fatal("Expected failure")
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}
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}
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