// TestSelectorUpdate ensures that from two overlapping deployments, the one that is working won't
// be marked as overlapping if its selector is updated but still overlaps with the other one.
func TestSelectorUpdate(t *testing.T) {
f := newFixture(t)
now := metav1.Now()
later := metav1.Time{Time: now.Add(time.Minute)}
selectorUpdated := metav1.Time{Time: later.Add(time.Minute)}
foo := newDeployment("foo", 1, nil, nil, nil, map[string]string{"foo": "bar"})
foo.CreationTimestamp = now
foo.Annotations = map[string]string{util.SelectorUpdateAnnotation: selectorUpdated.Format(time.RFC3339)}
bar := newDeployment("bar", 1, nil, nil, nil, map[string]string{"foo": "bar", "app": "baz"})
bar.CreationTimestamp = later
bar.Annotations = map[string]string{util.OverlapAnnotation: "foo"}
f.dLister = append(f.dLister, foo, bar)
f.objects = append(f.objects, foo, bar)
f.expectCreateRSAction(newReplicaSet(foo, "foo-rs", 1))
f.expectUpdateDeploymentStatusAction(foo)
f.expectUpdateDeploymentStatusAction(foo)
f.run(getKey(foo, t))
for _, a := range filterInformerActions(f.client.Actions()) {
action, ok := a.(core.UpdateAction)
if !ok {
continue
}
d, ok := action.GetObject().(*extensions.Deployment)
if !ok {
continue
}
if d.Name == "foo" && len(d.Annotations[util.OverlapAnnotation]) > 0 {
t.Errorf("deployment %q should not have the overlapping annotation", d.Name)
}
if d.Name == "bar" && len(d.Annotations[util.OverlapAnnotation]) == 0 {
t.Errorf("deployment %q should have the overlapping annotation", d.Name)
}
}
}
func TestSelectorUpdatedBefore(t *testing.T) {
now := metav1.Now()
later := metav1.Time{Time: now.Add(time.Minute)}
selectorUpdated := metav1.Time{Time: later.Add(time.Minute)}
selectorUpdatedLater := metav1.Time{Time: selectorUpdated.Add(time.Minute)}
tests := []struct {
name string
d1 extensions.Deployment
creationTimestamp1 *metav1.Time
selectorUpdated1 *metav1.Time
d2 extensions.Deployment
creationTimestamp2 *metav1.Time
selectorUpdated2 *metav1.Time
expected bool
}{
{
name: "d1 created before d2",
d1: generateDeployment("foo"),
creationTimestamp1: &now,
d2: generateDeployment("bar"),
creationTimestamp2: &later,
expected: true,
},
{
name: "d1 created after d2",
d1: generateDeployment("foo"),
creationTimestamp1: &later,
d2: generateDeployment("bar"),
creationTimestamp2: &now,
expected: false,
},
{
// Think of the following scenario:
// d1 is created first, d2 is created after and its selector overlaps
// with d1. d2 is marked as overlapping correctly. If d1's selector is
// updated and continues to overlap with the selector of d2 then d1 is
// now marked overlapping and d2 is cleaned up. Proved by the following
// test case. Callers of SelectorUpdatedBefore should first check for
// the existence of the overlapping annotation in any of the two deployments
// prior to comparing their timestamps and as a matter of fact this is
// now handled in `(dc *DeploymentController) handleOverlap`.
name: "d1 created before d2 but updated its selector afterwards",
d1: generateDeployment("foo"),
creationTimestamp1: &now,
selectorUpdated1: &selectorUpdated,
d2: generateDeployment("bar"),
creationTimestamp2: &later,
expected: false,
},
{
name: "d1 selector is older than d2",
d1: generateDeployment("foo"),
selectorUpdated1: &selectorUpdated,
d2: generateDeployment("bar"),
selectorUpdated2: &selectorUpdatedLater,
expected: true,
},
{
name: "d1 selector is younger than d2",
d1: generateDeployment("foo"),
selectorUpdated1: &selectorUpdatedLater,
d2: generateDeployment("bar"),
selectorUpdated2: &selectorUpdated,
expected: false,
},
}
for _, test := range tests {
t.Logf("running scenario %q", test.name)
if test.creationTimestamp1 != nil {
test.d1.CreationTimestamp = *test.creationTimestamp1
}
if test.creationTimestamp2 != nil {
test.d2.CreationTimestamp = *test.creationTimestamp2
}
if test.selectorUpdated1 != nil {
test.d1.Annotations[SelectorUpdateAnnotation] = test.selectorUpdated1.Format(time.RFC3339)
}
if test.selectorUpdated2 != nil {
test.d2.Annotations[SelectorUpdateAnnotation] = test.selectorUpdated2.Format(time.RFC3339)
}
if got := SelectorUpdatedBefore(&test.d1, &test.d2); got != test.expected {
t.Errorf("expected d1 selector to be updated before d2: %t, got: %t", test.expected, got)
}
}
}