runc/cgroups/fs/memory_test.go

124 lines
3.1 KiB
Go

package fs
import (
"testing"
)
const (
memoryStatContents = `cache 512
rss 1024`
memoryUsageContents = "2048\n"
memoryMaxUsageContents = "4096\n"
)
func TestMemoryStats(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": memoryStatContents,
"memory.usage_in_bytes": memoryUsageContents,
"memory.max_usage_in_bytes": memoryMaxUsageContents,
})
memory := &memoryGroup{}
stats, err := memory.Stats(helper.CgroupData)
if err != nil {
t.Fatal(err)
}
expectedStats := map[string]float64{"cache": 512.0, "rss": 1024.0, "usage_in_bytes": 2048.0, "max_usage_in_bytes": 4096.0}
expectStats(t, expectedStats, stats)
}
func TestMemoryStatsNoStatFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.usage_in_bytes": memoryUsageContents,
"memory.max_usage_in_bytes": memoryMaxUsageContents,
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}
func TestMemoryStatsNoUsageFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": memoryStatContents,
"memory.max_usage_in_bytes": memoryMaxUsageContents,
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}
func TestMemoryStatsNoMaxUsageFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": memoryStatContents,
"memory.usage_in_bytes": memoryUsageContents,
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}
func TestMemoryStatsBadStatFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": "rss rss",
"memory.usage_in_bytes": memoryUsageContents,
"memory.max_usage_in_bytes": memoryMaxUsageContents,
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}
func TestMemoryStatsBadUsageFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": memoryStatContents,
"memory.usage_in_bytes": "bad",
"memory.max_usage_in_bytes": memoryMaxUsageContents,
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}
func TestMemoryStatsBadMaxUsageFile(t *testing.T) {
helper := NewCgroupTestUtil("memory", t)
defer helper.cleanup()
helper.writeFileContents(map[string]string{
"memory.stat": memoryStatContents,
"memory.usage_in_bytes": memoryUsageContents,
"memory.max_usage_in_bytes": "bad",
})
memory := &memoryGroup{}
_, err := memory.Stats(helper.CgroupData)
if err == nil {
t.Fatal("Expected failure")
}
}