func StorageDriverTestRetrieveZeroRecentStats(driver storage.StorageDriver, t *testing.T) {
defer driver.Close()
N := 100
memTrace := make([]uint64, N)
cpuTrace := make([]uint64, N)
for i := 0; i < N; i++ {
memTrace[i] = uint64(i + 1)
cpuTrace[i] = uint64(1)
}
ref := info.ContainerReference{
Name: "container",
}
trace := buildTrace(cpuTrace, memTrace, 1*time.Second)
for _, stats := range trace {
driver.AddStats(ref, stats)
}
recentStats, err := driver.RecentStats(ref.Name, 0)
if err != nil {
t.Fatal(err)
}
if len(recentStats) > 0 {
t.Errorf("RecentStats() returns %v stats when requests for 0 stats", len(recentStats))
}
}
func StorageDriverTestNoRecentStats(driver storage.StorageDriver, t *testing.T) {
defer driver.Close()
nonExistContainer := "somerandomecontainer"
stats, _ := driver.RecentStats(nonExistContainer, -1)
if len(stats) > 0 {
t.Errorf("RecentStats() returns %v stats on non exist container", len(stats))
}
}
func StorageDriverTestRetrievePartialRecentStats(driver storage.StorageDriver, t *testing.T) {
defer driver.Close()
N := 100
memTrace := make([]uint64, N)
cpuTrace := make([]uint64, N)
for i := 0; i < N; i++ {
memTrace[i] = uint64(i + 1)
cpuTrace[i] = uint64(1)
}
ref := info.ContainerReference{
Name: "container",
}
trace := buildTrace(cpuTrace, memTrace, 1*time.Second)
for _, stats := range trace {
driver.AddStats(ref, stats)
}
recentStats, err := driver.RecentStats(ref.Name, 10)
if err != nil {
t.Fatal(err)
}
if len(recentStats) > 10 {
t.Fatalf("returned %v stats, not 10.", len(recentStats))
}
actualRecentStats := trace[len(trace)-len(recentStats):]
for _, r := range recentStats {
found := false
for _, s := range actualRecentStats {
if reflect.DeepEqual(s, r) {
found = true
}
}
if !found {
t.Errorf("unexpected stats %+v with memory usage %v", r, r.Memory.Usage)
}
}
}
func StorageDriverTestRetrievePartialRecentStats(driver storage.StorageDriver, t *testing.T) {
defer driver.Close()
N := 100
memTrace := make([]uint64, N)
cpuTrace := make([]uint64, N)
for i := 0; i < N; i++ {
memTrace[i] = uint64(i + 1)
cpuTrace[i] = uint64(1)
}
ref := info.ContainerReference{
Name: "container",
}
trace := buildTrace(cpuTrace, memTrace, 1*time.Second)
for _, stats := range trace {
driver.AddStats(ref, stats)
}
recentStats, err := driver.RecentStats(ref.Name, 10)
if err != nil {
t.Fatal(err)
}
if len(recentStats) == 0 {
t.Fatal("should at least store one stats")
}
if len(recentStats) > 10 {
t.Fatalf("returned %v stats, not 10.", len(recentStats))
}
actualRecentStats := trace[len(trace)-len(recentStats):]
// The returned stats should be sorted in time increasing order
for i, s := range actualRecentStats {
r := recentStats[i]
if !statsEq(s, r) {
t.Errorf("unexpected stats %+v with memory usage %v; should be %+v", r, r.Memory.Usage, s)
}
}
}