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Svc REST: Test that Headless doesn't set IPs

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This commit is contained in:
Tim Hockin 2020-11-25 16:18:52 -08:00
parent 9ca582f3b7
commit 0dc509a0c8
1 changed files with 76 additions and 0 deletions
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76
pkg/registry/core/service/storage/storage_test.go
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@ -4830,3 +4830,79 @@ func TestCreateDryRun(t *testing.T) {
})
}
}
// Prove that create skips allocations for Headless services.
func TestCreateSkipsAllocationsForHeadless(t *testing.T) {
testCases := []struct {
name string
clusterFamilies []api.IPFamily
enableDualStack bool
svc *api.Service
expectError bool
}{{
name: "singlestack:v4_gate:off_type:ClusterIP",
clusterFamilies: []api.IPFamily{api.IPv4Protocol},
enableDualStack: false,
svc: svctest.MakeService("foo"),
}, {
name: "singlestack:v6_gate:on_type:ClusterIP",
clusterFamilies: []api.IPFamily{api.IPv6Protocol},
enableDualStack: true,
svc: svctest.MakeService("foo"),
}, {
name: "dualstack:v4v6_gate:off_type:ClusterIP",
clusterFamilies: []api.IPFamily{api.IPv4Protocol, api.IPv6Protocol},
enableDualStack: false,
svc: svctest.MakeService("foo"),
}, {
name: "dualstack:v6v4_gate:on_type:ClusterIP",
clusterFamilies: []api.IPFamily{api.IPv6Protocol, api.IPv4Protocol},
enableDualStack: true,
svc: svctest.MakeService("foo"),
}, {
name: "singlestack:v4_gate:off_type:NodePort",
clusterFamilies: []api.IPFamily{api.IPv4Protocol},
enableDualStack: false,
svc: svctest.MakeService("foo", svctest.SetTypeNodePort),
expectError: true,
}, {
name: "singlestack:v6_gate:on_type:LoadBalancer",
clusterFamilies: []api.IPFamily{api.IPv6Protocol},
enableDualStack: true,
svc: svctest.MakeService("foo", svctest.SetTypeLoadBalancer),
expectError: true,
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.IPv6DualStack, tc.enableDualStack)()
storage, _, server := newStorage(t, tc.clusterFamilies)
defer server.Terminate(t)
defer storage.Store.DestroyFunc()
// This test is ONLY headless services.
tc.svc.Spec.ClusterIP = api.ClusterIPNone
ctx := genericapirequest.NewDefaultContext()
createdObj, err := storage.Create(ctx, tc.svc, rest.ValidateAllObjectFunc, &metav1.CreateOptions{})
if tc.expectError && err != nil {
return
}
if err != nil {
t.Fatalf("unexpected error creating service: %v", err)
}
if tc.expectError && err == nil {
t.Fatalf("unexpected success creating service")
}
createdSvc := createdObj.(*api.Service)
if createdSvc.Spec.ClusterIP != "None" {
t.Errorf("expected clusterIP \"None\", got %q", createdSvc.Spec.ClusterIP)
}
if !reflect.DeepEqual(createdSvc.Spec.ClusterIPs, []string{"None"}) {
t.Errorf("expected clusterIPs [\"None\"], got %q", createdSvc.Spec.ClusterIPs)
}
})
}
}