486 lines
12 KiB
Go
486 lines
12 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 api
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import (
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"reflect"
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"strings"
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"testing"
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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/kubernetes/pkg/api/resource"
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)
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func TestConversionError(t *testing.T) {
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var i int
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var s string
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i = 3
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s = "foo"
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c := ConversionError{
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In: &i, Out: &s,
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Message: "Can't make x into y, silly",
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}
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var e error
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e = &c // ensure it implements error
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msg := e.Error()
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t.Logf("Message is %v", msg)
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for _, part := range []string{"3", "int", "string", "Can't"} {
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if !strings.Contains(msg, part) {
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t.Errorf("didn't find %v", part)
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}
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}
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}
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func TestSemantic(t *testing.T) {
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table := []struct {
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a, b interface{}
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shouldEqual bool
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}{
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{resource.MustParse("0"), resource.Quantity{}, true},
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{resource.Quantity{}, resource.MustParse("0"), true},
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{resource.Quantity{}, resource.MustParse("1m"), false},
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{
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resource.NewQuantity(5, resource.BinarySI),
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resource.NewQuantity(5, resource.DecimalSI),
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true,
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},
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{resource.MustParse("2m"), resource.MustParse("1m"), false},
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}
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for index, item := range table {
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if e, a := item.shouldEqual, Semantic.DeepEqual(item.a, item.b); e != a {
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t.Errorf("case[%d], expected %v, got %v.", index, e, a)
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}
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}
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}
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func TestIsStandardResource(t *testing.T) {
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testCases := []struct {
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input string
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output bool
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}{
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{"cpu", true},
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{"memory", true},
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{"disk", false},
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{"blah", false},
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{"x.y.z", false},
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}
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for i, tc := range testCases {
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if IsStandardResourceName(tc.input) != tc.output {
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t.Errorf("case[%d], expected: %t, got: %t", i, tc.output, !tc.output)
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}
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}
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}
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func TestAddToNodeAddresses(t *testing.T) {
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testCases := []struct {
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existing []NodeAddress
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toAdd []NodeAddress
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expected []NodeAddress
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}{
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{
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existing: []NodeAddress{},
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toAdd: []NodeAddress{},
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expected: []NodeAddress{},
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},
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{
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existing: []NodeAddress{},
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toAdd: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeHostName, Address: "localhost"},
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},
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expected: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeHostName, Address: "localhost"},
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},
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},
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{
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existing: []NodeAddress{},
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toAdd: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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},
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expected: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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},
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},
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{
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existing: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeInternalIP, Address: "10.1.1.1"},
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},
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toAdd: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeHostName, Address: "localhost"},
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},
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expected: []NodeAddress{
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{Type: NodeExternalIP, Address: "1.1.1.1"},
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{Type: NodeInternalIP, Address: "10.1.1.1"},
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{Type: 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 !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, ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", ReadOnlyMany, modes)
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}
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modes = GetAccessModesFromString("ROX,RWX")
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if !containsAccessMode(modes, ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", ReadOnlyMany, modes)
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}
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if !containsAccessMode(modes, ReadWriteMany) {
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t.Errorf("Expected mode %s, but got %+v", ReadWriteMany, modes)
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}
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modes = GetAccessModesFromString("RWO,ROX,RWX")
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if !containsAccessMode(modes, ReadOnlyMany) {
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t.Errorf("Expected mode %s, but got %+v", ReadOnlyMany, modes)
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}
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if !containsAccessMode(modes, ReadWriteMany) {
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t.Errorf("Expected mode %s, but got %+v", ReadWriteMany, modes)
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}
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}
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func TestRemoveDuplicateAccessModes(t *testing.T) {
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modes := []PersistentVolumeAccessMode{
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ReadWriteOnce, ReadOnlyMany, ReadOnlyMany, 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 := []NodeSelectorRequirement{{
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Key: "foo",
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Operator: 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 []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: []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: []NodeSelectorRequirement{{
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Key: "foo",
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Operator: 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: []NodeSelectorRequirement{{
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Key: "foo",
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Operator: 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: []NodeSelectorRequirement{{
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Key: "bar",
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Operator: 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 TestTaintToString(t *testing.T) {
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testCases := []struct {
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taint *Taint
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expectedString string
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}{
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{
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taint: &Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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expectedString: "foo=bar:NoSchedule",
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},
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{
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taint: &Taint{
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Key: "foo",
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Effect: TaintEffectNoSchedule,
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},
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expectedString: "foo:NoSchedule",
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},
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}
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for i, tc := range testCases {
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if tc.expectedString != tc.taint.ToString() {
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t.Errorf("[%v] expected taint %v converted to %s, got %s", i, tc.taint, tc.expectedString, tc.taint.ToString())
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}
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}
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}
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func TestMatchTaint(t *testing.T) {
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testCases := []struct {
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description string
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taint *Taint
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taintToMatch Taint
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expectMatch bool
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}{
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{
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description: "two taints with the same key,value,effect should match",
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taint: &Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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taintToMatch: Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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expectMatch: true,
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},
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{
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description: "two taints with the same key,effect but different value should match",
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taint: &Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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taintToMatch: Taint{
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Key: "foo",
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Value: "different-value",
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Effect: TaintEffectNoSchedule,
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},
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expectMatch: true,
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},
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{
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description: "two taints with the different key cannot match",
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taint: &Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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taintToMatch: Taint{
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Key: "different-key",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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expectMatch: false,
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},
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{
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description: "two taints with the different effect cannot match",
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taint: &Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectNoSchedule,
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},
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taintToMatch: Taint{
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Key: "foo",
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Value: "bar",
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Effect: TaintEffectPreferNoSchedule,
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},
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expectMatch: false,
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},
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}
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for _, tc := range testCases {
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if tc.expectMatch != tc.taint.MatchTaint(tc.taintToMatch) {
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t.Errorf("[%s] expect taint %s match taint %s", tc.description, tc.taint.ToString(), tc.taintToMatch.ToString())
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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 *Node
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expectValue AvoidPods
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expectErr bool
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}{
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{
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node: &Node{},
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expectValue: AvoidPods{},
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expectErr: false,
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},
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{
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node: &Node{
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ObjectMeta: ObjectMeta{
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Annotations: map[string]string{
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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: AvoidPods{
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PreferAvoidPods: []PreferAvoidPodsEntry{
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{
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PodSignature: 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: &Node{
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// Missing end symbol of "podController" and "podSignature"
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ObjectMeta: ObjectMeta{
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Annotations: map[string]string{
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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: 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 []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: []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: []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: []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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