fixtodo: add unit test for function FetchConfigFromFileOrCluster

This commit is contained in:
hangaoshuai 2018-07-16 09:32:15 +08:00
parent c861ceb41a
commit c0cc3ee82f
3 changed files with 207 additions and 2 deletions

View File

@ -40,6 +40,7 @@ go_library(
go_test(
name = "go_default_test",
srcs = [
"cluster_test.go",
"common_test.go",
"masterconfig_test.go",
"nodeconfig_test.go",
@ -52,7 +53,12 @@ go_test(
"//cmd/kubeadm/app/apis/kubeadm/v1alpha3:go_default_library",
"//cmd/kubeadm/app/constants:go_default_library",
"//cmd/kubeadm/app/util:go_default_library",
"//cmd/kubeadm/app/util/apiclient:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes/fake:go_default_library",
"//vendor/github.com/pmezard/go-difflib/difflib:go_default_library",
],
)

View File

@ -28,8 +28,6 @@ import (
"k8s.io/kubernetes/cmd/kubeadm/app/constants"
)
// TODO: Add unit tests for this file
// FetchConfigFromFileOrCluster fetches configuration required for upgrading your cluster from a file (which has precedence) or a ConfigMap in the cluster
func FetchConfigFromFileOrCluster(client clientset.Interface, w io.Writer, logPrefix, cfgPath string) (*kubeadmapi.InitConfiguration, error) {
// Load the configuration from a file or the cluster

View File

@ -0,0 +1,201 @@
/*
Copyright 2018 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 config
import (
"fmt"
"os"
"strings"
"testing"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
clientsetfake "k8s.io/client-go/kubernetes/fake"
"k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
)
func TestFetchConfigFromFileOrCluster(t *testing.T) {
var tests = []struct {
name string
cfgPath string
testCfg *kubeadmapi.InitConfiguration
expectErr string
}{
{
name: "fetch valid config from configMap",
testCfg: &kubeadmapi.InitConfiguration{
KubernetesVersion: "v1.10.3",
API: kubeadm.API{
AdvertiseAddress: "1.2.3.4",
BindPort: 6443,
},
Etcd: kubeadm.Etcd{
Local: &kubeadm.LocalEtcd{
DataDir: "/some/path",
},
},
Networking: kubeadm.Networking{
ServiceSubnet: "10.96.0.1/12",
DNSDomain: "cluster.local",
PodSubnet: "10.0.1.15/16",
},
CertificatesDir: "/some/other/cert/dir",
BootstrapTokens: []kubeadm.BootstrapToken{
{
Token: &kubeadm.BootstrapTokenString{
ID: "abcdef",
Secret: "abcdef0123456789",
},
},
},
NodeRegistration: kubeadm.NodeRegistrationOptions{
Name: "node-foo",
CRISocket: "/var/run/custom-cri.sock",
},
},
},
{
name: "fetch invalid config from configMap",
testCfg: &kubeadmapi.InitConfiguration{
KubernetesVersion: "v1.10.3",
API: kubeadm.API{
AdvertiseAddress: "1.2.3.4",
BindPort: 6443,
},
Etcd: kubeadm.Etcd{
Local: &kubeadm.LocalEtcd{
DataDir: "/some/path",
},
},
Networking: kubeadm.Networking{
ServiceSubnet: "10.96.0.1/12",
DNSDomain: "cluster.local",
PodSubnet: "10.0.1.15",
},
CertificatesDir: "/some/other/cert/dir",
BootstrapTokens: []kubeadm.BootstrapToken{
{
Token: &kubeadm.BootstrapTokenString{
ID: "abcdef",
Secret: "abcdef0123456789",
},
},
},
NodeRegistration: kubeadm.NodeRegistrationOptions{
Name: "node-foo",
CRISocket: "/var/run/custom-cri.sock",
},
},
expectErr: "couldn't parse subnet",
},
{
name: "fetch valid config from cfgPath",
cfgPath: "testdata/conversion/master/v1alpha2.yaml",
testCfg: &kubeadmapi.InitConfiguration{
KubernetesVersion: "v1.10.3",
API: kubeadm.API{
AdvertiseAddress: "1.2.3.4",
BindPort: 6443,
},
Etcd: kubeadm.Etcd{
Local: &kubeadm.LocalEtcd{
DataDir: "/some/path",
},
},
Networking: kubeadm.Networking{
ServiceSubnet: "10.96.0.1/12",
DNSDomain: "cluster.local",
PodSubnet: "10.0.1.15",
},
CertificatesDir: "/some/other/cert/dir",
BootstrapTokens: []kubeadm.BootstrapToken{
{
Token: &kubeadm.BootstrapTokenString{
ID: "abcdef",
Secret: "abcdef0123456789",
},
},
},
NodeRegistration: kubeadm.NodeRegistrationOptions{
Name: "node-foo",
CRISocket: "/var/run/custom-cri.sock",
},
},
},
{
name: "fetch invalid config from cfgPath",
cfgPath: "testdata/validation/invalid_mastercfg.yaml",
expectErr: "was not of the form",
},
{
name: "fetch config from not exist cfgPath",
cfgPath: "testdata231/defaulting/master/defaulted.yaml",
expectErr: "no such file or directory",
},
{
name: "fetch config when no configMap and no cfgPath",
expectErr: "not found",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
client := clientsetfake.NewSimpleClientset()
if tt.testCfg != nil {
err := createConfigMapWithCfg(tt.testCfg, client)
if err != nil {
t.Errorf("UploadConfiguration failed err: %v", err)
}
}
_, err := FetchConfigFromFileOrCluster(client, os.Stdout, "upgrade/config", tt.cfgPath)
if len(tt.expectErr) == 0 {
if err != nil {
t.Fatalf("expected no err, but got err: %v", err)
}
} else if !strings.Contains(err.Error(), tt.expectErr) {
t.Errorf("expected contain err: %v, but got err: %v", tt.expectErr, err)
}
})
}
}
// createConfigMapWithCfg create a ConfigMap with InitConfiguration for TestFetchConfigFromFileOrCluster
func createConfigMapWithCfg(cfgToCreate *kubeadmapi.InitConfiguration, client clientset.Interface) error {
cfgYaml, err := MarshalKubeadmConfigObject(cfgToCreate)
if err != nil {
fmt.Println("err", err.Error())
return err
}
err = apiclient.CreateOrUpdateConfigMap(client, &v1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: kubeadmconstants.InitConfigurationConfigMap,
Namespace: metav1.NamespaceSystem,
},
Data: map[string]string{
kubeadmconstants.InitConfigurationConfigMapKey: string(cfgYaml),
},
})
if err != nil {
return err
}
return nil
}