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use table test pattern and replace hardcoded values

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reinka 2024-02-13 20:05:26 +01:00 committed by Andrei Poehlmann
parent 960d7fbf09
commit 48b1576980
1 changed files with 213 additions and 194 deletions
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69
pkg/kubelet/eviction/eviction_manager_test.go
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@ -169,11 +169,6 @@ func makePIDStats(nodeAvailablePIDs string, numberOfRunningProcesses string, pod
MaxPID: &availablePIDs, MaxPID: &availablePIDs,
NumOfRunningProcesses: &NumberOfRunningProcesses, NumOfRunningProcesses: &NumberOfRunningProcesses,
}, },
SystemContainers: []statsapi.ContainerStats{
{
Name: statsapi.SystemContainerPods,
},
},
}, },
Pods: []statsapi.PodStats{}, Pods: []statsapi.PodStats{},
} }
@ -402,8 +397,8 @@ func TestPIDPressure_VerifyPodStatus(t *testing.T) {
podMaker := makePodWithPIDStats podMaker := makePodWithPIDStats
summaryStatsMaker := makePIDStats summaryStatsMaker := makePIDStats
podsToMake := []podToMake{ podsToMake := []podToMake{
{name: "below-requests"}, {},
{name: "above-requests"}, {},
} }
pods := []*v1.Pod{} pods := []*v1.Pod{}
podStats := map[*v1.Pod]statsapi.PodStats{} podStats := map[*v1.Pod]statsapi.PodStats{}
@ -924,26 +919,47 @@ func makeContainersByQOS(class v1.PodQOSClass) []v1.Container {
} }
func TestPIDPressure(t *testing.T) { func TestPIDPressure(t *testing.T) {
podMaker := makePodWithPIDStats
summaryStatsMaker := makePIDStats // Define test cases
podsToMake := []podToMake{ testCases := []struct {
name string
podsToMake []podToMake
evictPodIndex int
noPressurePIDUsage string
pressurePIDUsageWithGracePeriod string
pressurePIDUsageWithoutGracePeriod string
totalPID string
}{
{
name: "eviction due to pid pressure",
podsToMake: []podToMake{
{name: "high-priority-high-usage", priority: highPriority, pidUsage: 900}, {name: "high-priority-high-usage", priority: highPriority, pidUsage: 900},
{name: "default-priority-low-usage", priority: defaultPriority, pidUsage: 100}, {name: "default-priority-low-usage", priority: defaultPriority, pidUsage: 100},
{name: "default-priority-medium-usage", priority: defaultPriority, pidUsage: 400}, {name: "default-priority-medium-usage", priority: defaultPriority, pidUsage: 400},
{name: "low-priority-high-usage", priority: lowPriority, pidUsage: 600}, {name: "low-priority-high-usage", priority: lowPriority, pidUsage: 600},
{name: "low-priority-low-usage", priority: lowPriority, pidUsage: 50}, {name: "low-priority-low-usage", priority: lowPriority, pidUsage: 50},
},
evictPodIndex: 3, // we expect the low-priority-high-usage pod to be evicted
noPressurePIDUsage: "300",
pressurePIDUsageWithGracePeriod: "700",
pressurePIDUsageWithoutGracePeriod: "1200",
totalPID: "2000",
},
} }
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
podMaker := makePodWithPIDStats
summaryStatsMaker := makePIDStats
pods := []*v1.Pod{} pods := []*v1.Pod{}
podStats := map[*v1.Pod]statsapi.PodStats{} podStats := map[*v1.Pod]statsapi.PodStats{}
for _, podToMake := range podsToMake { for _, podToMake := range tc.podsToMake {
pod, podStat := podMaker(podToMake.name, podToMake.priority, podToMake.pidUsage) pod, podStat := podMaker(podToMake.name, podToMake.priority, podToMake.pidUsage)
pods = append(pods, pod) pods = append(pods, pod)
podStats[pod] = podStat podStats[pod] = podStat
} }
podToEvict := pods[3] podToEvict := pods[tc.evictPodIndex]
activePodsFunc := func() []*v1.Pod { activePodsFunc := func() []*v1.Pod { return pods }
return pods
}
fakeClock := testingclock.NewFakeClock(time.Now()) fakeClock := testingclock.NewFakeClock(time.Now())
podKiller := &mockPodKiller{} podKiller := &mockPodKiller{}
@ -972,7 +988,8 @@ func TestPIDPressure(t *testing.T) {
}, },
}, },
} }
summaryProvider := &fakeSummaryProvider{result: summaryStatsMaker("2000", "300", podStats)}
summaryProvider := &fakeSummaryProvider{result: summaryStatsMaker(tc.totalPID, tc.noPressurePIDUsage, podStats)}
manager := &managerImpl{ manager := &managerImpl{
clock: fakeClock, clock: fakeClock,
killPodFunc: podKiller.killPodNow, killPodFunc: podKiller.killPodNow,
@ -986,7 +1003,7 @@ func TestPIDPressure(t *testing.T) {
thresholdsFirstObservedAt: thresholdsObservedAt{}, thresholdsFirstObservedAt: thresholdsObservedAt{},
} }
// create a best effort pod to test admission // create a pod to test admission
podToAdmit, _ := podMaker("pod-to-admit", defaultPriority, 50) podToAdmit, _ := podMaker("pod-to-admit", defaultPriority, 50)
// synchronize // synchronize
@ -996,9 +1013,9 @@ func TestPIDPressure(t *testing.T) {
t.Fatalf("Manager expects no error but got %v", err) t.Fatalf("Manager expects no error but got %v", err)
} }
// we should not have disk pressure // we should not have PID pressure
if manager.IsUnderDiskPressure() { if manager.IsUnderPIDPressure() {
t.Fatalf("Manager should not report disk pressure") t.Fatalf("Manager should not report PID pressure")
} }
// try to admit our pod (should succeed) // try to admit our pod (should succeed)
@ -1008,7 +1025,7 @@ func TestPIDPressure(t *testing.T) {
// induce soft threshold for PID pressure // induce soft threshold for PID pressure
fakeClock.Step(1 * time.Minute) fakeClock.Step(1 * time.Minute)
summaryProvider.result = summaryStatsMaker("2000", "700", podStats) summaryProvider.result = summaryStatsMaker(tc.totalPID, tc.pressurePIDUsageWithGracePeriod, podStats)
_, err = manager.synchronize(diskInfoProvider, activePodsFunc) _, err = manager.synchronize(diskInfoProvider, activePodsFunc)
if err != nil { if err != nil {
@ -1057,7 +1074,7 @@ func TestPIDPressure(t *testing.T) {
// remove PID pressure by simulating increased PID availability // remove PID pressure by simulating increased PID availability
fakeClock.Step(20 * time.Minute) fakeClock.Step(20 * time.Minute)
summaryProvider.result = summaryStatsMaker("2000", "300", podStats) // Simulate increased PID availability summaryProvider.result = summaryStatsMaker(tc.totalPID, tc.noPressurePIDUsage, podStats) // Simulate increased PID availability
_, err = manager.synchronize(diskInfoProvider, activePodsFunc) _, err = manager.synchronize(diskInfoProvider, activePodsFunc)
if err != nil { if err != nil {
@ -1071,7 +1088,7 @@ func TestPIDPressure(t *testing.T) {
// re-induce PID pressure // re-induce PID pressure
fakeClock.Step(1 * time.Minute) fakeClock.Step(1 * time.Minute)
summaryProvider.result = summaryStatsMaker("2000", "1200", podStats) summaryProvider.result = summaryStatsMaker(tc.totalPID, tc.pressurePIDUsageWithoutGracePeriod, podStats)
_, err = manager.synchronize(diskInfoProvider, activePodsFunc) _, err = manager.synchronize(diskInfoProvider, activePodsFunc)
if err != nil { if err != nil {
@ -1102,7 +1119,7 @@ func TestPIDPressure(t *testing.T) {
// reduce PID pressure // reduce PID pressure
fakeClock.Step(1 * time.Minute) fakeClock.Step(1 * time.Minute)
summaryProvider.result = summaryStatsMaker("2000", "300", podStats) summaryProvider.result = summaryStatsMaker(tc.totalPID, tc.noPressurePIDUsage, podStats)
podKiller.pod = nil // reset state podKiller.pod = nil // reset state
_, err = manager.synchronize(diskInfoProvider, activePodsFunc) _, err = manager.synchronize(diskInfoProvider, activePodsFunc)
@ -1127,7 +1144,7 @@ func TestPIDPressure(t *testing.T) {
// move the clock past the transition period // move the clock past the transition period
fakeClock.Step(5 * time.Minute) fakeClock.Step(5 * time.Minute)
summaryProvider.result = summaryStatsMaker("2000", "300", podStats) summaryProvider.result = summaryStatsMaker(tc.totalPID, tc.noPressurePIDUsage, podStats)
_, err = manager.synchronize(diskInfoProvider, activePodsFunc) _, err = manager.synchronize(diskInfoProvider, activePodsFunc)
if err != nil { if err != nil {
@ -1148,6 +1165,8 @@ func TestPIDPressure(t *testing.T) {
if result := manager.Admit(&lifecycle.PodAdmitAttributes{Pod: podToAdmit}); !result.Admit { if result := manager.Admit(&lifecycle.PodAdmitAttributes{Pod: podToAdmit}); !result.Admit {
t.Fatalf("Admit pod: %v, expected: %v, actual: %v", podToAdmit, true, result.Admit) t.Fatalf("Admit pod: %v, expected: %v, actual: %v", podToAdmit, true, result.Admit)
} }
})
}
} }
func TestAdmitUnderNodeConditions(t *testing.T) { func TestAdmitUnderNodeConditions(t *testing.T) {