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Adding e2e test to ensure kubectl get output is using custom columns when desired.

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This uses etcd test data to load resources and then ensures that
kubectl get output contains a different set of columns than default.
This assumes that all future API resources will either have appropriate
kubectl get output or add an exception here.

Co-authored-by: Luis Sanchez <sanchezl@redhat.com>
This commit is contained in:
Rob Scott 2019-10-10 12:43:00 -07:00
parent ad6f30c535
commit 8ae5632859
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GPG Key ID: 05B37CFC2CDE8B85
2 changed files with 126 additions and 0 deletions
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5
test/e2e/kubectl/BUILD
View File

@ -19,15 +19,19 @@ go_library(
"//staging/src/k8s.io/api/rbac/v1:go_default_library",
"//staging/src/k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/meta:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/labels:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/net:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/rand:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/uuid:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/authentication/serviceaccount:go_default_library",
"//staging/src/k8s.io/apiserver/pkg/registry/generic/registry:go_default_library",
"//staging/src/k8s.io/client-go/dynamic:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes:go_default_library",
"//staging/src/k8s.io/kubectl/pkg/polymorphichelpers:go_default_library",
"//test/e2e/common:go_default_library",
@ -39,6 +43,7 @@ go_library(
"//test/e2e/framework/service:go_default_library",
"//test/e2e/framework/testfiles:go_default_library",
"//test/e2e/scheduling:go_default_library",
"//test/integration/etcd:go_default_library",
"//test/utils:go_default_library",
"//test/utils/crd:go_default_library",
"//test/utils/image:go_default_library",

121
test/e2e/kubectl/kubectl.go
View File

@ -46,15 +46,19 @@ import (
rbacv1 "k8s.io/api/rbac/v1"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
apierrs "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
utilnet "k8s.io/apimachinery/pkg/util/net"
"k8s.io/apimachinery/pkg/util/rand"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apiserver/pkg/authentication/serviceaccount"
genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
"k8s.io/client-go/dynamic"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubectl/pkg/polymorphichelpers"
"k8s.io/kubernetes/pkg/controller"
@ -67,6 +71,7 @@ import (
e2eservice "k8s.io/kubernetes/test/e2e/framework/service"
"k8s.io/kubernetes/test/e2e/framework/testfiles"
"k8s.io/kubernetes/test/e2e/scheduling"
"k8s.io/kubernetes/test/integration/etcd"
testutils "k8s.io/kubernetes/test/utils"
"k8s.io/kubernetes/test/utils/crd"
imageutils "k8s.io/kubernetes/test/utils/image"
@ -410,6 +415,82 @@ var _ = SIGDescribe("Kubectl client", func() {
})
})
ginkgo.Describe("kubectl get output", func() {
ginkgo.It("should contain custom columns for each resource", func() {
randString := rand.String(10)
ignoredResources := map[string]bool{
// ignored for intentionally using standard fields.
// This assumption is based on a lack of TableColumnDefinition
// in pkg/printers/internalversion/printers.go
"ClusterRole": true,
"LimitRange": true,
"PodPreset": true,
// ignored temporarily while waiting for bug fix.
"ComponentStatus": true,
"ClusterRoleBinding": true,
"ResourceQuota": true,
// ignored because no test data exists.
// Do not add anything to this list, instead add fixtures in
// the test/integration/etcd package.
"BackendConfig": true,
"NodeMetrics": true,
"PodMetrics": true,
"ScalingPolicy": true,
"VolumeSnapshotClass": true,
"VolumeSnapshotContent": true,
"VolumeSnapshot": true,
// A CRD created by other e2e tests without any test data.
"Noxu": true,
}
apiGroups, err := c.Discovery().ServerPreferredResources()
framework.ExpectNoError(err)
testableResources := etcd.GetEtcdStorageDataForNamespace(f.Namespace.Name)
for _, group := range apiGroups {
for _, resource := range group.APIResources {
if !verbsContain(resource.Verbs, "get") || ignoredResources[resource.Kind] || strings.HasPrefix(resource.Name, "e2e-test") {
continue
}
// compute gvr
gv, err := schema.ParseGroupVersion(group.GroupVersion)
framework.ExpectNoError(err)
gvr := gv.WithResource(resource.Name)
// assert test data exists
testData := testableResources[gvr]
gomega.ExpectWithOffset(1, testData).ToNot(gomega.BeZero(), "No test data available for %s", gvr)
// create test resource
mapping := &meta.RESTMapping{
Resource: gvr,
GroupVersionKind: gv.WithKind(resource.Kind),
}
if resource.Namespaced {
mapping.Scope = meta.RESTScopeNamespace
} else {
mapping.Scope = meta.RESTScopeRoot
}
client, obj, err := etcd.JSONToUnstructured(testData.Stub, f.Namespace.Name, mapping, f.DynamicClient)
framework.ExpectNoError(err)
if resource.Kind != "APIService" && resource.Kind != "CustomResourceDefinition" {
obj.SetName(obj.GetName() + randString)
}
createObjValidateOutputAndCleanup(client, obj, resource)
}
}
})
})
ginkgo.Describe("Simple pod", func() {
var podYaml string
ginkgo.BeforeEach(func() {
@ -2482,3 +2563,43 @@ waitLoop:
// Reaching here means that one of more checks failed multiple times. Assuming its not a race condition, something is broken.
framework.Failf("Timed out after %v seconds waiting for %s pods to reach valid state", framework.PodStartTimeout.Seconds(), testname)
}
// verbsContain returns true if the provided list of verbs contain the provided
// verb string.
func verbsContain(verbs metav1.Verbs, str string) bool {
for _, v := range verbs {
if v == str {
return true
}
}
return false
}
// deleteObj deletes an Object with the provided client and name.
func deleteObj(client dynamic.ResourceInterface, name string) {
err := client.Delete(name, &metav1.DeleteOptions{})
framework.ExpectNoError(err)
}
// createObjValidateOutputAndCleanup creates an object using the provided client
// and then verifies that the kubectl get output provides custom columns. Once
// the test has completed, it deletes the object.
func createObjValidateOutputAndCleanup(client dynamic.ResourceInterface, obj *unstructured.Unstructured, resource metav1.APIResource) {
_, err := client.Create(obj, metav1.CreateOptions{})
framework.ExpectNoError(err)
defer deleteObj(client, obj.GetName())
// get test resource
output := framework.RunKubectlOrDie("get", resource.Name, "--all-namespaces")
if output == "" {
framework.Failf("No stdout from kubectl get for %s (likely need to define test resources)", resource.Name)
}
splitOutput := strings.SplitN(output, "\n", 2)
fields := strings.Fields(splitOutput[0])
if resource.Namespaced {
framework.ExpectNotEqual(fields, []string{"NAMESPACE", "NAME", "CREATED", "AT"}, fmt.Sprintf("expected non-default fields for namespaced resource: %s", resource.Name))
} else {
framework.ExpectNotEqual(fields, []string{"NAME", "AGE"}, fmt.Sprintf("expected non-default fields for resource: %s", resource.Name))
}
}