kubernetes util_test 源码
kubernetes util_test 代码
文件路径：/pkg/api/v1/pod/util_test.go
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package pod
import (
"reflect"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/assert"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation/field"
)
func TestFindPort(t *testing.T) {
testCases := []struct {
name string
containers []v1.Container
port intstr.IntOrString
expected int
pass bool
}{{
name: "valid int, no ports",
containers: []v1.Container{{}},
port: intstr.FromInt(93),
expected: 93,
pass: true,
}, {
name: "valid int, with ports",
containers: []v1.Container{{Ports: []v1.ContainerPort{{
Name: "",
ContainerPort: 11,
Protocol: "TCP",
}, {
Name: "p",
ContainerPort: 22,
Protocol: "TCP",
}}}},
port: intstr.FromInt(93),
expected: 93,
pass: true,
}, {
name: "valid str, no ports",
containers: []v1.Container{{}},
port: intstr.FromString("p"),
expected: 0,
pass: false,
}, {
name: "valid str, one ctr with ports",
containers: []v1.Container{{Ports: []v1.ContainerPort{{
Name: "",
ContainerPort: 11,
Protocol: "UDP",
}, {
Name: "p",
ContainerPort: 22,
Protocol: "TCP",
}, {
Name: "q",
ContainerPort: 33,
Protocol: "TCP",
}}}},
port: intstr.FromString("q"),
expected: 33,
pass: true,
}, {
name: "valid str, two ctr with ports",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "",
ContainerPort: 11,
Protocol: "UDP",
}, {
Name: "p",
ContainerPort: 22,
Protocol: "TCP",
}, {
Name: "q",
ContainerPort: 33,
Protocol: "TCP",
}}}},
port: intstr.FromString("q"),
expected: 33,
pass: true,
}, {
name: "valid str, two ctr with same port",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "",
ContainerPort: 11,
Protocol: "UDP",
}, {
Name: "p",
ContainerPort: 22,
Protocol: "TCP",
}, {
Name: "q",
ContainerPort: 22,
Protocol: "TCP",
}}}},
port: intstr.FromString("q"),
expected: 22,
pass: true,
}, {
name: "valid str, invalid protocol",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "a",
ContainerPort: 11,
Protocol: "snmp",
},
}}},
port: intstr.FromString("a"),
expected: 0,
pass: false,
}, {
name: "valid hostPort",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "a",
ContainerPort: 11,
HostPort: 81,
Protocol: "TCP",
},
}}},
port: intstr.FromString("a"),
expected: 11,
pass: true,
},
{
name: "invalid hostPort",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "a",
ContainerPort: 11,
HostPort: -1,
Protocol: "TCP",
},
}}},
port: intstr.FromString("a"),
expected: 11,
pass: true,
//this should fail but passes.
},
{
name: "invalid ContainerPort",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "a",
ContainerPort: -1,
Protocol: "TCP",
},
}}},
port: intstr.FromString("a"),
expected: -1,
pass: true,
//this should fail but passes
},
{
name: "HostIP Address",
containers: []v1.Container{{}, {Ports: []v1.ContainerPort{{
Name: "a",
ContainerPort: 11,
HostIP: "192.168.1.1",
Protocol: "TCP",
},
}}},
port: intstr.FromString("a"),
expected: 11,
pass: true,
},
}
for _, tc := range testCases {
port, err := FindPort(&v1.Pod{Spec: v1.PodSpec{Containers: tc.containers}},
&v1.ServicePort{Protocol: "TCP", TargetPort: tc.port})
if err != nil && tc.pass {
t.Errorf("unexpected error for %s: %v", tc.name, err)
}
if err == nil && !tc.pass {
t.Errorf("unexpected non-error for %s: %d", tc.name, port)
}
if port != tc.expected {
t.Errorf("wrong result for %s: expected %d, got %d", tc.name, tc.expected, port)
}
}
}
func TestVisitContainers(t *testing.T) {
setAllFeatureEnabledContainersDuringTest := ContainerType(0)
testCases := []struct {
desc string
spec *v1.PodSpec
wantContainers []string
mask ContainerType
}{
{
desc: "empty podspec",
spec: &v1.PodSpec{},
wantContainers: []string{},
mask: AllContainers,
},
{
desc: "regular containers",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2"},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2"},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2"}},
},
},
wantContainers: []string{"c1", "c2"},
mask: Containers,
},
{
desc: "init containers",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2"},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2"},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2"}},
},
},
wantContainers: []string{"i1", "i2"},
mask: InitContainers,
},
{
desc: "ephemeral containers",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2"},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2"},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2"}},
},
},
wantContainers: []string{"e1", "e2"},
mask: EphemeralContainers,
},
{
desc: "all container types",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2"},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2"},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2"}},
},
},
wantContainers: []string{"i1", "i2", "c1", "c2", "e1", "e2"},
mask: AllContainers,
},
{
desc: "all feature enabled container types",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2", SecurityContext: &v1.SecurityContext{}},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2", SecurityContext: &v1.SecurityContext{}},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2"}},
},
},
wantContainers: []string{"i1", "i2", "c1", "c2", "e1", "e2"},
mask: setAllFeatureEnabledContainersDuringTest,
},
{
desc: "dropping fields",
spec: &v1.PodSpec{
Containers: []v1.Container{
{Name: "c1"},
{Name: "c2", SecurityContext: &v1.SecurityContext{}},
},
InitContainers: []v1.Container{
{Name: "i1"},
{Name: "i2", SecurityContext: &v1.SecurityContext{}},
},
EphemeralContainers: []v1.EphemeralContainer{
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: v1.EphemeralContainerCommon{Name: "e2", SecurityContext: &v1.SecurityContext{}}},
},
},
wantContainers: []string{"i1", "i2", "c1", "c2", "e1", "e2"},
mask: AllContainers,
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
if tc.mask == setAllFeatureEnabledContainersDuringTest {
tc.mask = AllFeatureEnabledContainers()
}
gotContainers := []string{}
VisitContainers(tc.spec, tc.mask, func(c *v1.Container, containerType ContainerType) bool {
gotContainers = append(gotContainers, c.Name)
if c.SecurityContext != nil {
c.SecurityContext = nil
}
return true
})
if !cmp.Equal(gotContainers, tc.wantContainers) {
t.Errorf("VisitContainers() = %+v, want %+v", gotContainers, tc.wantContainers)
}
for _, c := range tc.spec.Containers {
if c.SecurityContext != nil {
t.Errorf("VisitContainers() did not drop SecurityContext for container %q", c.Name)
}
}
for _, c := range tc.spec.InitContainers {
if c.SecurityContext != nil {
t.Errorf("VisitContainers() did not drop SecurityContext for init container %q", c.Name)
}
}
for _, c := range tc.spec.EphemeralContainers {
if c.SecurityContext != nil {
t.Errorf("VisitContainers() did not drop SecurityContext for ephemeral container %q", c.Name)
}
}
})
}
}
func TestPodSecrets(t *testing.T) {
// Stub containing all possible secret references in a pod.
// The names of the referenced secrets match struct paths detected by reflection.
pod := &v1.Pod{
Spec: v1.PodSpec{
Containers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
SecretRef: &v1.SecretEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Containers[*].EnvFrom[*].SecretRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
SecretKeyRef: &v1.SecretKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Containers[*].Env[*].ValueFrom.SecretKeyRef"}}}}}}},
ImagePullSecrets: []v1.LocalObjectReference{{
Name: "Spec.ImagePullSecrets"}},
InitContainers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
SecretRef: &v1.SecretEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.InitContainers[*].EnvFrom[*].SecretRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
SecretKeyRef: &v1.SecretKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.InitContainers[*].Env[*].ValueFrom.SecretKeyRef"}}}}}}},
Volumes: []v1.Volume{{
VolumeSource: v1.VolumeSource{
AzureFile: &v1.AzureFileVolumeSource{
SecretName: "Spec.Volumes[*].VolumeSource.AzureFile.SecretName"}}}, {
VolumeSource: v1.VolumeSource{
CephFS: &v1.CephFSVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.CephFS.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
Cinder: &v1.CinderVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.Cinder.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
FlexVolume: &v1.FlexVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.FlexVolume.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
Projected: &v1.ProjectedVolumeSource{
Sources: []v1.VolumeProjection{{
Secret: &v1.SecretProjection{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.Projected.Sources[*].Secret"}}}}}}}, {
VolumeSource: v1.VolumeSource{
RBD: &v1.RBDVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.RBD.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
Secret: &v1.SecretVolumeSource{
SecretName: "Spec.Volumes[*].VolumeSource.Secret.SecretName"}}}, {
VolumeSource: v1.VolumeSource{
Secret: &v1.SecretVolumeSource{
SecretName: "Spec.Volumes[*].VolumeSource.Secret"}}}, {
VolumeSource: v1.VolumeSource{
ScaleIO: &v1.ScaleIOVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.ScaleIO.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
ISCSI: &v1.ISCSIVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.ISCSI.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
StorageOS: &v1.StorageOSVolumeSource{
SecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.StorageOS.SecretRef"}}}}, {
VolumeSource: v1.VolumeSource{
CSI: &v1.CSIVolumeSource{
NodePublishSecretRef: &v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.CSI.NodePublishSecretRef"}}}}},
EphemeralContainers: []v1.EphemeralContainer{{
EphemeralContainerCommon: v1.EphemeralContainerCommon{
EnvFrom: []v1.EnvFromSource{{
SecretRef: &v1.SecretEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].SecretRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
SecretKeyRef: &v1.SecretKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.SecretKeyRef"}}}}}}}},
},
}
extractedNames := sets.NewString()
VisitPodSecretNames(pod, func(name string) bool {
extractedNames.Insert(name)
return true
})
// excludedSecretPaths holds struct paths to fields with "secret" in the name that are not actually references to secret API objects
excludedSecretPaths := sets.NewString(
"Spec.Volumes[*].VolumeSource.CephFS.SecretFile",
)
// expectedSecretPaths holds struct paths to fields with "secret" in the name that are references to secret API objects.
// every path here should be represented as an example in the Pod stub above, with the secret name set to the path.
expectedSecretPaths := sets.NewString(
"Spec.Containers[*].EnvFrom[*].SecretRef",
"Spec.Containers[*].Env[*].ValueFrom.SecretKeyRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].SecretRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.SecretKeyRef",
"Spec.ImagePullSecrets",
"Spec.InitContainers[*].EnvFrom[*].SecretRef",
"Spec.InitContainers[*].Env[*].ValueFrom.SecretKeyRef",
"Spec.Volumes[*].VolumeSource.AzureFile.SecretName",
"Spec.Volumes[*].VolumeSource.CephFS.SecretRef",
"Spec.Volumes[*].VolumeSource.Cinder.SecretRef",
"Spec.Volumes[*].VolumeSource.FlexVolume.SecretRef",
"Spec.Volumes[*].VolumeSource.Projected.Sources[*].Secret",
"Spec.Volumes[*].VolumeSource.RBD.SecretRef",
"Spec.Volumes[*].VolumeSource.Secret",
"Spec.Volumes[*].VolumeSource.Secret.SecretName",
"Spec.Volumes[*].VolumeSource.ScaleIO.SecretRef",
"Spec.Volumes[*].VolumeSource.ISCSI.SecretRef",
"Spec.Volumes[*].VolumeSource.StorageOS.SecretRef",
"Spec.Volumes[*].VolumeSource.CSI.NodePublishSecretRef",
)
secretPaths := collectResourcePaths(t, "secret", nil, "", reflect.TypeOf(&v1.Pod{}))
secretPaths = secretPaths.Difference(excludedSecretPaths)
if missingPaths := expectedSecretPaths.Difference(secretPaths); len(missingPaths) > 0 {
t.Logf("Missing expected secret paths:\n%s", strings.Join(missingPaths.List(), "\n"))
t.Error("Missing expected secret paths. Verify VisitPodSecretNames() is correctly finding the missing paths, then correct expectedSecretPaths")
}
if extraPaths := secretPaths.Difference(expectedSecretPaths); len(extraPaths) > 0 {
t.Logf("Extra secret paths:\n%s", strings.Join(extraPaths.List(), "\n"))
t.Error("Extra fields with 'secret' in the name found. Verify VisitPodSecretNames() is including these fields if appropriate, then correct expectedSecretPaths")
}
if missingNames := expectedSecretPaths.Difference(extractedNames); len(missingNames) > 0 {
t.Logf("Missing expected secret names:\n%s", strings.Join(missingNames.List(), "\n"))
t.Error("Missing expected secret names. Verify the pod stub above includes these references, then verify VisitPodSecretNames() is correctly finding the missing names")
}
if extraNames := extractedNames.Difference(expectedSecretPaths); len(extraNames) > 0 {
t.Logf("Extra secret names:\n%s", strings.Join(extraNames.List(), "\n"))
t.Error("Extra secret names extracted. Verify VisitPodSecretNames() is correctly extracting secret names")
}
// emptyPod is a stub containing empty object names
emptyPod := &v1.Pod{
Spec: v1.PodSpec{
Containers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
SecretRef: &v1.SecretEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: ""}}}}}},
},
}
VisitPodSecretNames(emptyPod, func(name string) bool {
t.Fatalf("expected no empty names collected, got %q", name)
return false
})
}
// collectResourcePaths traverses the object, computing all the struct paths that lead to fields with resourcename in the name.
func collectResourcePaths(t *testing.T, resourcename string, path *field.Path, name string, tp reflect.Type) sets.String {
resourcename = strings.ToLower(resourcename)
resourcePaths := sets.NewString()
if tp.Kind() == reflect.Pointer {
resourcePaths.Insert(collectResourcePaths(t, resourcename, path, name, tp.Elem()).List()...)
return resourcePaths
}
if strings.Contains(strings.ToLower(name), resourcename) {
resourcePaths.Insert(path.String())
}
switch tp.Kind() {
case reflect.Pointer:
resourcePaths.Insert(collectResourcePaths(t, resourcename, path, name, tp.Elem()).List()...)
case reflect.Struct:
// ObjectMeta is generic and therefore should never have a field with a specific resource's name;
// it contains cycles so it's easiest to just skip it.
if name == "ObjectMeta" {
break
}
for i := 0; i < tp.NumField(); i++ {
field := tp.Field(i)
resourcePaths.Insert(collectResourcePaths(t, resourcename, path.Child(field.Name), field.Name, field.Type).List()...)
}
case reflect.Interface:
t.Errorf("cannot find %s fields in interface{} field %s", resourcename, path.String())
case reflect.Map:
resourcePaths.Insert(collectResourcePaths(t, resourcename, path.Key("*"), "", tp.Elem()).List()...)
case reflect.Slice:
resourcePaths.Insert(collectResourcePaths(t, resourcename, path.Key("*"), "", tp.Elem()).List()...)
default:
// all primitive types
}
return resourcePaths
}
func TestPodConfigmaps(t *testing.T) {
// Stub containing all possible ConfigMap references in a pod.
// The names of the referenced ConfigMaps match struct paths detected by reflection.
pod := &v1.Pod{
Spec: v1.PodSpec{
Containers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
ConfigMapRef: &v1.ConfigMapEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Containers[*].EnvFrom[*].ConfigMapRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
ConfigMapKeyRef: &v1.ConfigMapKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Containers[*].Env[*].ValueFrom.ConfigMapKeyRef"}}}}}}},
EphemeralContainers: []v1.EphemeralContainer{{
EphemeralContainerCommon: v1.EphemeralContainerCommon{
EnvFrom: []v1.EnvFromSource{{
ConfigMapRef: &v1.ConfigMapEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].ConfigMapRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
ConfigMapKeyRef: &v1.ConfigMapKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.ConfigMapKeyRef"}}}}}}}},
InitContainers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
ConfigMapRef: &v1.ConfigMapEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.InitContainers[*].EnvFrom[*].ConfigMapRef"}}}},
Env: []v1.EnvVar{{
ValueFrom: &v1.EnvVarSource{
ConfigMapKeyRef: &v1.ConfigMapKeySelector{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.InitContainers[*].Env[*].ValueFrom.ConfigMapKeyRef"}}}}}}},
Volumes: []v1.Volume{{
VolumeSource: v1.VolumeSource{
Projected: &v1.ProjectedVolumeSource{
Sources: []v1.VolumeProjection{{
ConfigMap: &v1.ConfigMapProjection{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.Projected.Sources[*].ConfigMap"}}}}}}}, {
VolumeSource: v1.VolumeSource{
ConfigMap: &v1.ConfigMapVolumeSource{
LocalObjectReference: v1.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.ConfigMap"}}}}},
},
}
extractedNames := sets.NewString()
VisitPodConfigmapNames(pod, func(name string) bool {
extractedNames.Insert(name)
return true
})
// expectedPaths holds struct paths to fields with "ConfigMap" in the name that are references to ConfigMap API objects.
// every path here should be represented as an example in the Pod stub above, with the ConfigMap name set to the path.
expectedPaths := sets.NewString(
"Spec.Containers[*].EnvFrom[*].ConfigMapRef",
"Spec.Containers[*].Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].ConfigMapRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.InitContainers[*].EnvFrom[*].ConfigMapRef",
"Spec.InitContainers[*].Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.Volumes[*].VolumeSource.Projected.Sources[*].ConfigMap",
"Spec.Volumes[*].VolumeSource.ConfigMap",
)
collectPaths := collectResourcePaths(t, "ConfigMap", nil, "", reflect.TypeOf(&v1.Pod{}))
if missingPaths := expectedPaths.Difference(collectPaths); len(missingPaths) > 0 {
t.Logf("Missing expected paths:\n%s", strings.Join(missingPaths.List(), "\n"))
t.Error("Missing expected paths. Verify VisitPodConfigmapNames() is correctly finding the missing paths, then correct expectedPaths")
}
if extraPaths := collectPaths.Difference(expectedPaths); len(extraPaths) > 0 {
t.Logf("Extra paths:\n%s", strings.Join(extraPaths.List(), "\n"))
t.Error("Extra fields with resource in the name found. Verify VisitPodConfigmapNames() is including these fields if appropriate, then correct expectedPaths")
}
if missingNames := expectedPaths.Difference(extractedNames); len(missingNames) > 0 {
t.Logf("Missing expected names:\n%s", strings.Join(missingNames.List(), "\n"))
t.Error("Missing expected names. Verify the pod stub above includes these references, then verify VisitPodConfigmapNames() is correctly finding the missing names")
}
if extraNames := extractedNames.Difference(expectedPaths); len(extraNames) > 0 {
t.Logf("Extra names:\n%s", strings.Join(extraNames.List(), "\n"))
t.Error("Extra names extracted. Verify VisitPodConfigmapNames() is correctly extracting resource names")
}
// emptyPod is a stub containing empty object names
emptyPod := &v1.Pod{
Spec: v1.PodSpec{
Containers: []v1.Container{{
EnvFrom: []v1.EnvFromSource{{
ConfigMapRef: &v1.ConfigMapEnvSource{
LocalObjectReference: v1.LocalObjectReference{
Name: ""}}}}}},
},
}
VisitPodConfigmapNames(emptyPod, func(name string) bool {
t.Fatalf("expected no empty names collected, got %q", name)
return false
})
}
func newPod(now metav1.Time, ready bool, beforeSec int) *v1.Pod {
conditionStatus := v1.ConditionFalse
if ready {
conditionStatus = v1.ConditionTrue
}
return &v1.Pod{
Status: v1.PodStatus{
Conditions: []v1.PodCondition{
{
Type: v1.PodReady,
LastTransitionTime: metav1.NewTime(now.Time.Add(-1 * time.Duration(beforeSec) * time.Second)),
Status: conditionStatus,
},
},
},
}
}
func TestIsPodAvailable(t *testing.T) {
now := metav1.Now()
tests := []struct {
pod *v1.Pod
minReadySeconds int32
expected bool
}{
{
pod: newPod(now, false, 0),
minReadySeconds: 0,
expected: false,
},
{
pod: newPod(now, true, 0),
minReadySeconds: 1,
expected: false,
},
{
pod: newPod(now, true, 0),
minReadySeconds: 0,
expected: true,
},
{
pod: newPod(now, true, 51),
minReadySeconds: 50,
expected: true,
},
}
for i, test := range tests {
isAvailable := IsPodAvailable(test.pod, test.minReadySeconds, now)
if isAvailable != test.expected {
t.Errorf("[tc #%d] expected available pod: %t, got: %t", i, test.expected, isAvailable)
}
}
}
func TestIsPodTerminal(t *testing.T) {
now := metav1.Now()
tests := []struct {
podPhase v1.PodPhase
expected bool
}{
{
podPhase: v1.PodFailed,
expected: true,
},
{
podPhase: v1.PodSucceeded,
expected: true,
},
{
podPhase: v1.PodUnknown,
expected: false,
},
{
podPhase: v1.PodPending,
expected: false,
},
{
podPhase: v1.PodRunning,
expected: false,
},
{
expected: false,
},
}
for i, test := range tests {
pod := newPod(now, true, 0)
pod.Status.Phase = test.podPhase
isTerminal := IsPodTerminal(pod)
if isTerminal != test.expected {
t.Errorf("[tc #%d] expected terminal pod: %t, got: %t", i, test.expected, isTerminal)
}
}
}
func TestGetContainerStatus(t *testing.T) {
type ExpectedStruct struct {
status v1.ContainerStatus
exists bool
}
tests := []struct {
status []v1.ContainerStatus
name string
expected ExpectedStruct
desc string
}{
{
status: []v1.ContainerStatus{{Name: "test1", Ready: false, Image: "image1"}, {Name: "test2", Ready: true, Image: "image1"}},
name: "test1",
expected: ExpectedStruct{status: v1.ContainerStatus{Name: "test1", Ready: false, Image: "image1"}, exists: true},
desc: "retrieve ContainerStatus with Name=\"test1\"",
},
{
status: []v1.ContainerStatus{{Name: "test2", Ready: false, Image: "image2"}},
name: "test1",
expected: ExpectedStruct{status: v1.ContainerStatus{}, exists: false},
desc: "no matching ContainerStatus with Name=\"test1\"",
},
{
status: []v1.ContainerStatus{{Name: "test3", Ready: false, Image: "image3"}},
name: "",
expected: ExpectedStruct{status: v1.ContainerStatus{}, exists: false},
desc: "retrieve an empty ContainerStatus with container name empty",
},
{
status: nil,
name: "",
expected: ExpectedStruct{status: v1.ContainerStatus{}, exists: false},
desc: "retrieve an empty ContainerStatus with status nil",
},
}
for _, test := range tests {
resultStatus, exists := GetContainerStatus(test.status, test.name)
assert.Equal(t, test.expected.status, resultStatus, "GetContainerStatus: "+test.desc)
assert.Equal(t, test.expected.exists, exists, "GetContainerStatus: "+test.desc)
resultStatus = GetExistingContainerStatus(test.status, test.name)
assert.Equal(t, test.expected.status, resultStatus, "GetExistingContainerStatus: "+test.desc)
}
}
func TestUpdatePodCondition(t *testing.T) {
time := metav1.Now()
podStatus := v1.PodStatus{
Conditions: []v1.PodCondition{
{
Type: v1.PodReady,
Status: v1.ConditionTrue,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000)),
},
},
}
tests := []struct {
status *v1.PodStatus
conditions v1.PodCondition
expected bool
desc string
}{
{
status: &podStatus,
conditions: v1.PodCondition{
Type: v1.PodReady,
Status: v1.ConditionTrue,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000))},
expected: false,
desc: "all equal, no update",
},
{
status: &podStatus,
conditions: v1.PodCondition{
Type: v1.PodScheduled,
Status: v1.ConditionTrue,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000))},
expected: true,
desc: "not equal Type, should get updated",
},
{
status: &podStatus,
conditions: v1.PodCondition{
Type: v1.PodReady,
Status: v1.ConditionFalse,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000))},
expected: true,
desc: "not equal Status, should get updated",
},
}
for _, test := range tests {
resultStatus := UpdatePodCondition(test.status, &test.conditions)
assert.Equal(t, test.expected, resultStatus, test.desc)
}
}
func TestGetContainersReadyCondition(t *testing.T) {
time := metav1.Now()
containersReadyCondition := v1.PodCondition{
Type: v1.ContainersReady,
Status: v1.ConditionTrue,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000)),
}
tests := []struct {
desc string
podStatus v1.PodStatus
expectedCondition *v1.PodCondition
}{
{
desc: "containers ready condition exists",
podStatus: v1.PodStatus{
Conditions: []v1.PodCondition{containersReadyCondition},
},
expectedCondition: &containersReadyCondition,
},
{
desc: "containers ready condition does not exist",
podStatus: v1.PodStatus{
Conditions: []v1.PodCondition{},
},
expectedCondition: nil,
},
}
for _, test := range tests {
containersReadyCondition := GetContainersReadyCondition(test.podStatus)
assert.Equal(t, test.expectedCondition, containersReadyCondition, test.desc)
}
}
func TestIsContainersReadyConditionTrue(t *testing.T) {
time := metav1.Now()
tests := []struct {
desc string
podStatus v1.PodStatus
expected bool
}{
{
desc: "containers ready condition is true",
podStatus: v1.PodStatus{
Conditions: []v1.PodCondition{
{
Type: v1.ContainersReady,
Status: v1.ConditionTrue,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000)),
},
},
},
expected: true,
},
{
desc: "containers ready condition is false",
podStatus: v1.PodStatus{
Conditions: []v1.PodCondition{
{
Type: v1.ContainersReady,
Status: v1.ConditionFalse,
Reason: "successfully",
Message: "sync pod successfully",
LastProbeTime: time,
LastTransitionTime: metav1.NewTime(time.Add(1000)),
},
},
},
expected: false,
},
{
desc: "containers ready condition is empty",
podStatus: v1.PodStatus{
Conditions: []v1.PodCondition{},
},
expected: false,
},
}
for _, test := range tests {
isContainersReady := IsContainersReadyConditionTrue(test.podStatus)
assert.Equal(t, test.expected, isContainersReady, test.desc)
}
}
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