589 lines
17 KiB
Go
589 lines
17 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package helper
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import (
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"reflect"
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"testing"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/api/core/v1"
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)
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func TestAddToNodeAddresses(t *testing.T) {
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testCases := []struct {
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existing []v1.NodeAddress
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toAdd []v1.NodeAddress
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expected []v1.NodeAddress
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}{
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{
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existing: []v1.NodeAddress{},
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toAdd: []v1.NodeAddress{},
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expected: []v1.NodeAddress{},
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},
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{
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existing: []v1.NodeAddress{},
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toAdd: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeHostName, Address: "localhost"},
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},
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expected: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeHostName, Address: "localhost"},
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},
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},
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{
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existing: []v1.NodeAddress{},
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toAdd: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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},
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expected: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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},
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},
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{
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existing: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeInternalIP, Address: "10.1.1.1"},
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},
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toAdd: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeHostName, Address: "localhost"},
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},
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expected: []v1.NodeAddress{
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{Type: v1.NodeExternalIP, Address: "1.1.1.1"},
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{Type: v1.NodeInternalIP, Address: "10.1.1.1"},
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{Type: v1.NodeHostName, Address: "localhost"},
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},
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},
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}
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for i, tc := range testCases {
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AddToNodeAddresses(&tc.existing, tc.toAdd...)
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if !apiequality.Semantic.DeepEqual(tc.expected, tc.existing) {
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t.Errorf("case[%d], expected: %v, got: %v", i, tc.expected, tc.existing)
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}
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}
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}
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func TestGetAccessModesFromString(t *testing.T) {
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modes := GetAccessModesFromString("ROX")
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if !containsAccessMode(modes, v1.ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
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}
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modes = GetAccessModesFromString("ROX,RWX")
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if !containsAccessMode(modes, v1.ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
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}
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if !containsAccessMode(modes, v1.ReadWriteMany) {
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t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteMany, modes)
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}
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modes = GetAccessModesFromString("RWO,ROX,RWX")
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if !containsAccessMode(modes, v1.ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
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}
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if !containsAccessMode(modes, v1.ReadWriteMany) {
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t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteMany, modes)
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}
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}
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func TestRemoveDuplicateAccessModes(t *testing.T) {
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modes := []v1.PersistentVolumeAccessMode{
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v1.ReadWriteOnce, v1.ReadOnlyMany, v1.ReadOnlyMany, v1.ReadOnlyMany,
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}
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modes = removeDuplicateAccessModes(modes)
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if len(modes) != 2 {
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t.Errorf("Expected 2 distinct modes in set but found %v", len(modes))
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}
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}
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func TestNodeSelectorRequirementsAsSelector(t *testing.T) {
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matchExpressions := []v1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: v1.NodeSelectorOpIn,
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Values: []string{"bar", "baz"},
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}}
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mustParse := func(s string) labels.Selector {
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out, e := labels.Parse(s)
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if e != nil {
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panic(e)
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}
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return out
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}
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tc := []struct {
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in []v1.NodeSelectorRequirement
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out labels.Selector
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expectErr bool
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}{
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{in: nil, out: labels.Nothing()},
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{in: []v1.NodeSelectorRequirement{}, out: labels.Nothing()},
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{
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in: matchExpressions,
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out: mustParse("foo in (baz,bar)"),
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},
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{
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in: []v1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: v1.NodeSelectorOpExists,
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Values: []string{"bar", "baz"},
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}},
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expectErr: true,
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},
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{
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in: []v1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: v1.NodeSelectorOpGt,
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Values: []string{"1"},
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}},
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out: mustParse("foo>1"),
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},
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{
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in: []v1.NodeSelectorRequirement{{
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Key: "bar",
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Operator: v1.NodeSelectorOpLt,
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Values: []string{"7"},
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}},
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out: mustParse("bar<7"),
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},
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}
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for i, tc := range tc {
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out, err := NodeSelectorRequirementsAsSelector(tc.in)
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if err == nil && tc.expectErr {
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t.Errorf("[%v]expected error but got none.", i)
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}
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if err != nil && !tc.expectErr {
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t.Errorf("[%v]did not expect error but got: %v", i, err)
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}
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if !reflect.DeepEqual(out, tc.out) {
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t.Errorf("[%v]expected:\n\t%+v\nbut got:\n\t%+v", i, tc.out, out)
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}
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}
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}
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func TestTolerationsTolerateTaintsWithFilter(t *testing.T) {
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testCases := []struct {
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description string
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tolerations []v1.Toleration
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taints []v1.Taint
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applyFilter taintsFilterFunc
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expectTolerated bool
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}{
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{
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description: "empty tolerations tolerate empty taints",
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tolerations: []v1.Toleration{},
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taints: []v1.Taint{},
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applyFilter: func(t *v1.Taint) bool { return true },
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expectTolerated: true,
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},
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{
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description: "non-empty tolerations tolerate empty taints",
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tolerations: []v1.Toleration{
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{
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Key: "foo",
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Operator: "Exists",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taints: []v1.Taint{},
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applyFilter: func(t *v1.Taint) bool { return true },
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expectTolerated: true,
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},
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{
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description: "tolerations match all taints, expect tolerated",
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tolerations: []v1.Toleration{
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{
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Key: "foo",
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Operator: "Exists",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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applyFilter: func(t *v1.Taint) bool { return true },
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expectTolerated: true,
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},
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{
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description: "tolerations don't match taints, but no taints apply to the filter, expect tolerated",
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tolerations: []v1.Toleration{
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{
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Key: "foo",
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Operator: "Exists",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taints: []v1.Taint{
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{
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Key: "bar",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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applyFilter: func(t *v1.Taint) bool { return false },
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expectTolerated: true,
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},
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{
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description: "no filterFunc indicated, means all taints apply to the filter, tolerations don't match taints, expect untolerated",
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tolerations: []v1.Toleration{
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{
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Key: "foo",
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Operator: "Exists",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taints: []v1.Taint{
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{
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Key: "bar",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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applyFilter: nil,
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expectTolerated: false,
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},
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{
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description: "tolerations match taints, expect tolerated",
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tolerations: []v1.Toleration{
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{
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Key: "foo",
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Operator: "Exists",
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Effect: v1.TaintEffectNoExecute,
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},
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},
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taints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoExecute,
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},
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{
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Key: "bar",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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applyFilter: func(t *v1.Taint) bool { return t.Effect == v1.TaintEffectNoExecute },
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expectTolerated: true,
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},
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}
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for _, tc := range testCases {
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if tc.expectTolerated != TolerationsTolerateTaintsWithFilter(tc.tolerations, tc.taints, tc.applyFilter) {
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filteredTaints := []v1.Taint{}
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for _, taint := range tc.taints {
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if tc.applyFilter != nil && !tc.applyFilter(&taint) {
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continue
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}
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filteredTaints = append(filteredTaints, taint)
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}
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t.Errorf("[%s] expect tolerations %+v tolerate filtered taints %+v in taints %+v", tc.description, tc.tolerations, filteredTaints, tc.taints)
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}
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}
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}
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func TestGetAvoidPodsFromNode(t *testing.T) {
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controllerFlag := true
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testCases := []struct {
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node *v1.Node
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expectValue v1.AvoidPods
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expectErr bool
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}{
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{
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node: &v1.Node{},
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expectValue: v1.AvoidPods{},
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expectErr: false,
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},
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{
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node: &v1.Node{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{
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v1.PreferAvoidPodsAnnotationKey: `
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{
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"preferAvoidPods": [
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{
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"podSignature": {
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"podController": {
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"apiVersion": "v1",
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"kind": "ReplicationController",
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"name": "foo",
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"uid": "abcdef123456",
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"controller": true
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}
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},
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"reason": "some reason",
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"message": "some message"
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}
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]
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}`,
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},
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},
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},
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expectValue: v1.AvoidPods{
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PreferAvoidPods: []v1.PreferAvoidPodsEntry{
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{
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PodSignature: v1.PodSignature{
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PodController: &metav1.OwnerReference{
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APIVersion: "v1",
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Kind: "ReplicationController",
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Name: "foo",
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UID: "abcdef123456",
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Controller: &controllerFlag,
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},
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},
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Reason: "some reason",
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Message: "some message",
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},
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},
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},
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expectErr: false,
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},
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{
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node: &v1.Node{
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// Missing end symbol of "podController" and "podSignature"
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{
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v1.PreferAvoidPodsAnnotationKey: `
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{
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"preferAvoidPods": [
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{
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"podSignature": {
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"podController": {
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"kind": "ReplicationController",
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"apiVersion": "v1"
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"reason": "some reason",
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"message": "some message"
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}
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]
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}`,
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},
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},
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},
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expectValue: v1.AvoidPods{},
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expectErr: true,
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},
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}
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for i, tc := range testCases {
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v, err := GetAvoidPodsFromNodeAnnotations(tc.node.Annotations)
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if err == nil && tc.expectErr {
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t.Errorf("[%v]expected error but got none.", i)
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}
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if err != nil && !tc.expectErr {
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t.Errorf("[%v]did not expect error but got: %v", i, err)
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}
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if !reflect.DeepEqual(tc.expectValue, v) {
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t.Errorf("[%v]expect value %v but got %v with %v", i, tc.expectValue, v, v.PreferAvoidPods[0].PodSignature.PodController.Controller)
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}
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}
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}
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func TestSysctlsFromPodAnnotation(t *testing.T) {
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type Test struct {
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annotation string
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expectValue []v1.Sysctl
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expectErr bool
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}
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for i, test := range []Test{
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{
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annotation: "",
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expectValue: nil,
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},
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{
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annotation: "foo.bar",
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expectErr: true,
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},
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{
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annotation: "=123",
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expectErr: true,
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},
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{
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annotation: "foo.bar=",
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expectValue: []v1.Sysctl{{Name: "foo.bar", Value: ""}},
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},
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{
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annotation: "foo.bar=42",
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expectValue: []v1.Sysctl{{Name: "foo.bar", Value: "42"}},
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},
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{
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annotation: "foo.bar=42,",
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expectErr: true,
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},
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{
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annotation: "foo.bar=42,abc.def=1",
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expectValue: []v1.Sysctl{{Name: "foo.bar", Value: "42"}, {Name: "abc.def", Value: "1"}},
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},
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} {
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sysctls, err := SysctlsFromPodAnnotation(test.annotation)
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if test.expectErr && err == nil {
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t.Errorf("[%v]expected error but got none", i)
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} else if !test.expectErr && err != nil {
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t.Errorf("[%v]did not expect error but got: %v", i, err)
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} else if !reflect.DeepEqual(sysctls, test.expectValue) {
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t.Errorf("[%v]expect value %v but got %v", i, test.expectValue, sysctls)
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}
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}
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}
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// TODO: remove when alpha support for affinity is removed
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func TestGetAffinityFromPodAnnotations(t *testing.T) {
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testCases := []struct {
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pod *v1.Pod
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expectErr bool
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}{
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{
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pod: &v1.Pod{},
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expectErr: false,
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},
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{
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pod: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{
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v1.AffinityAnnotationKey: `
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{"nodeAffinity": { "requiredDuringSchedulingIgnoredDuringExecution": {
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"nodeSelectorTerms": [{
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"matchExpressions": [{
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"key": "foo",
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"operator": "In",
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"values": ["value1", "value2"]
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}]
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}]
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}}}`,
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},
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},
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},
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expectErr: false,
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},
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{
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pod: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{
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v1.AffinityAnnotationKey: `
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{"nodeAffinity": { "requiredDuringSchedulingIgnoredDuringExecution": {
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"nodeSelectorTerms": [{
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"matchExpressions": [{
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"key": "foo",
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`,
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},
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},
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},
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expectErr: true,
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},
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}
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for i, tc := range testCases {
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_, err := GetAffinityFromPodAnnotations(tc.pod.Annotations)
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if err == nil && tc.expectErr {
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t.Errorf("[%v]expected error but got none.", i)
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}
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if err != nil && !tc.expectErr {
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t.Errorf("[%v]did not expect error but got: %v", i, err)
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}
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}
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}
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// TODO: remove when alpha support for topology constraints is removed
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func TestGetNodeAffinityFromAnnotations(t *testing.T) {
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testCases := []struct {
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annotations map[string]string
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expectErr bool
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}{
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{
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annotations: nil,
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expectErr: false,
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},
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{
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annotations: map[string]string{},
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expectErr: false,
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},
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{
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annotations: map[string]string{
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v1.AlphaStorageNodeAffinityAnnotation: `{
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"requiredDuringSchedulingIgnoredDuringExecution": {
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"nodeSelectorTerms": [
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{ "matchExpressions": [
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{ "key": "test-key1",
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"operator": "In",
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"values": ["test-value1", "test-value2"]
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},
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{ "key": "test-key2",
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"operator": "In",
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"values": ["test-value1", "test-value2"]
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}
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]}
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]}
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}`,
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},
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expectErr: false,
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},
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{
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annotations: map[string]string{
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v1.AlphaStorageNodeAffinityAnnotation: `[{
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|
"requiredDuringSchedulingIgnoredDuringExecution": {
|
|
"nodeSelectorTerms": [
|
|
{ "matchExpressions": [
|
|
{ "key": "test-key1",
|
|
"operator": "In",
|
|
"values": ["test-value1", "test-value2"]
|
|
},
|
|
{ "key": "test-key2",
|
|
"operator": "In",
|
|
"values": ["test-value1", "test-value2"]
|
|
}
|
|
]}
|
|
]}
|
|
}]`,
|
|
},
|
|
expectErr: true,
|
|
},
|
|
{
|
|
annotations: map[string]string{
|
|
v1.AlphaStorageNodeAffinityAnnotation: `{
|
|
"requiredDuringSchedulingIgnoredDuringExecution": {
|
|
"nodeSelectorTerms":
|
|
"matchExpressions": [
|
|
{ "key": "test-key1",
|
|
"operator": "In",
|
|
"values": ["test-value1", "test-value2"]
|
|
},
|
|
{ "key": "test-key2",
|
|
"operator": "In",
|
|
"values": ["test-value1", "test-value2"]
|
|
}
|
|
]}
|
|
}
|
|
}`,
|
|
},
|
|
expectErr: true,
|
|
},
|
|
}
|
|
|
|
for i, tc := range testCases {
|
|
_, err := GetStorageNodeAffinityFromAnnotation(tc.annotations)
|
|
if err == nil && tc.expectErr {
|
|
t.Errorf("[%v]expected error but got none.", i)
|
|
}
|
|
if err != nil && !tc.expectErr {
|
|
t.Errorf("[%v]did not expect error but got: %v", i, err)
|
|
}
|
|
}
|
|
}
|