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Scheduler predicate test explicitly assumes that cluster add-on pods stay stable, but never check it before each test run. Adding the check for each test case.

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This commit is contained in:
Dawn Chen 2016-02-04 17:26:42 -08:00
parent b32078d89b
commit d65cab42bf
1 changed files with 12 additions and 1 deletions
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13
test/e2e/scheduler_predicates.go
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@ -179,6 +179,7 @@ func waitForStableCluster(c *client.Client) int {
var _ = Describe("SchedulerPredicates [Serial]", func() { var _ = Describe("SchedulerPredicates [Serial]", func() {
var c *client.Client var c *client.Client
var nodeList *api.NodeList var nodeList *api.NodeList
var systemPodsNo int
var totalPodCapacity int64 var totalPodCapacity int64
var RCName string var RCName string
var ns string var ns string
@ -198,6 +199,16 @@ var _ = Describe("SchedulerPredicates [Serial]", func() {
c = framework.Client c = framework.Client
ns = framework.Namespace.Name ns = framework.Namespace.Name
nodeList = ListSchedulableNodesOrDie(c) nodeList = ListSchedulableNodesOrDie(c)
// Every test case in this suite assumes that cluster add-on pods stay stable and
// cannot be run in parallel with any other test that touches Nodes or Pods.
// It is so because we need to have precise control on what's running in the cluster.
systemPods, err := c.Pods(api.NamespaceSystem).List(api.ListOptions{})
Expect(err).NotTo(HaveOccurred())
systemPodsNo = len(systemPods.Items)
err = waitForPodsRunningReady(api.NamespaceSystem, systemPodsNo, podReadyBeforeTimeout)
Expect(err).NotTo(HaveOccurred())
}) })
// This test verifies that max-pods flag works as advertised. It assumes that cluster add-on pods stay stable // This test verifies that max-pods flag works as advertised. It assumes that cluster add-on pods stay stable
@ -284,7 +295,7 @@ var _ = Describe("SchedulerPredicates [Serial]", func() {
_, found := nodeToCapacityMap[pod.Spec.NodeName] _, found := nodeToCapacityMap[pod.Spec.NodeName]
Expect(found).To(Equal(true)) Expect(found).To(Equal(true))
if pod.Status.Phase == api.PodRunning { if pod.Status.Phase == api.PodRunning {
Logf("Pod %v requesting capacity %v on Node %v", pod.Name, getRequestedCPU(pod), pod.Spec.NodeName) Logf("Pod %v requesting resource %v on Node %v", pod.Name, getRequestedCPU(pod), pod.Spec.NodeName)
nodeToCapacityMap[pod.Spec.NodeName] -= getRequestedCPU(pod) nodeToCapacityMap[pod.Spec.NodeName] -= getRequestedCPU(pod)
} }
} }