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kubeadm: add test coverage to join.go
Included tests: - TestNewValidJoin
This commit is contained in:
Lubomir I. Ivanov
@@ -81,16 +81,19 @@ go_library(
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go_test(
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name = "go_default_test",
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srcs = [
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"join_test.go",
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"reset_test.go",
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"token_test.go",
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"version_test.go",
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],
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embed = [":go_default_library"],
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deps = [
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"//cmd/kubeadm/app/apis/kubeadm:go_default_library",
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"//cmd/kubeadm/app/apis/kubeadm/v1alpha1:go_default_library",
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"//cmd/kubeadm/app/apis/kubeadm/validation:go_default_library",
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"//cmd/kubeadm/app/constants:go_default_library",
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"//cmd/kubeadm/app/preflight:go_default_library",
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"//pkg/api/legacyscheme:go_default_library",
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"//vendor/github.com/ghodss/yaml:go_default_library",
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"//vendor/k8s.io/api/core/v1:go_default_library",
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"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
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187
cmd/kubeadm/app/cmd/join_test.go
Normal file
187
cmd/kubeadm/app/cmd/join_test.go
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@@ -0,0 +1,187 @@
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/*
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Copyright 2018 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 cmd
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
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kubeadmapiext "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1alpha1"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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)
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const (
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testConfig = `apiVersion: v1
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clusters:
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- cluster:
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certificate-authority-data:
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server: localhost:9008
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name: prod
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contexts:
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- context:
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cluster: prod
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namespace: default
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user: default-service-account
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name: default
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current-context: default
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kind: Config
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preferences: {}
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users:
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- name: kubernetes-admin
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user:
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client-certificate-data:
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client-key-data:
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`
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)
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func TestNewValidJoin(t *testing.T) {
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// create temp directory
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tmpDir, err := ioutil.TempDir("", "kubeadm-join-test")
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if err != nil {
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t.Errorf("Unable to create temporary directory: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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// create config file
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configFilePath := filepath.Join(tmpDir, "test-config-file")
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cfgFile, err := os.Create(configFilePath)
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if err != nil {
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t.Errorf("Unable to create file %q: %v", configFilePath, err)
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}
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defer cfgFile.Close()
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testCases := []struct {
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name string
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args []string
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skipPreFlight bool
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cfgPath string
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configToWrite string
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featureGatesString string
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ignorePreflightErrors []string
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testJoinValidate bool
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testJoinRun bool
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cmdPersistentFlags map[string]string
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nodeConfig *kubeadm.NodeConfiguration
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expectedError bool
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}{
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{
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name: "invalid: missing config file",
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skipPreFlight: true,
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cfgPath: "missing-path-to-a-config",
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expectedError: true,
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},
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{
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name: "invalid: incorrect config file",
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skipPreFlight: true,
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cfgPath: configFilePath,
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configToWrite: "bad-config-contents",
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expectedError: true,
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},
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{
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name: "invalid: fail at preflight.RunJoinNodeChecks()",
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skipPreFlight: false,
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cfgPath: configFilePath,
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configToWrite: testConfig,
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expectedError: true,
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},
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{
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name: "invalid: incorrect ignorePreflight argument",
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skipPreFlight: true,
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cfgPath: configFilePath,
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configToWrite: testConfig,
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ignorePreflightErrors: []string{"some-unsupported-preflight-arg"},
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expectedError: true,
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},
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{
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name: "invalid: incorrect featureGatesString",
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featureGatesString: "bad-feature-gate-string",
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expectedError: true,
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},
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{
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name: "invalid: fail Join.Validate() with wrong flags",
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skipPreFlight: true,
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cfgPath: configFilePath,
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configToWrite: testConfig,
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testJoinValidate: true,
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cmdPersistentFlags: map[string]string{
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"config": "some-config",
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"node-name": "some-node-name",
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},
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expectedError: true,
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},
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{
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name: "invalid: fail Join.Validate() with wrong node configuration",
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skipPreFlight: true,
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cfgPath: configFilePath,
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configToWrite: testConfig,
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testJoinValidate: true,
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expectedError: true,
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},
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{
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name: "invalid: fail Join.Run() with invalid node config",
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skipPreFlight: true,
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cfgPath: configFilePath,
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configToWrite: testConfig,
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testJoinRun: true,
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expectedError: true,
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},
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}
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var out bytes.Buffer
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cfg := &kubeadmapiext.NodeConfiguration{}
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legacyscheme.Scheme.Default(cfg)
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errorFormat := "Test case %q: NewValidJoin expected error: %v, saw: %v, error: %v"
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for _, tc := range testCases {
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if _, err = cfgFile.WriteString(tc.configToWrite); err != nil {
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t.Fatalf("Unable to write file %q: %v", tc.cfgPath, err)
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}
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join, err := NewValidJoin(cfg, tc.args, tc.skipPreFlight, tc.cfgPath, tc.featureGatesString, tc.ignorePreflightErrors)
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cmd := NewCmdJoin(&out)
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if tc.cmdPersistentFlags != nil {
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for key, value := range tc.cmdPersistentFlags {
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cmd.PersistentFlags().Set(key, value)
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}
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}
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if tc.nodeConfig != nil {
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join.cfg = tc.nodeConfig
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}
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// test Join.Run()
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if err == nil && tc.testJoinRun {
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err = join.Run(&out)
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if (err != nil) != tc.expectedError {
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t.Fatalf(errorFormat, tc.name, tc.expectedError, (err != nil), err)
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}
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// test Join.Validate()
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} else if err == nil && tc.testJoinValidate {
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if err = join.Validate(cmd); (err != nil) != tc.expectedError {
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t.Fatalf(errorFormat, tc.name, tc.expectedError, (err != nil), err)
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}
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// check error for NewValidJoin()
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} else if (err != nil) != tc.expectedError {
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t.Fatalf(errorFormat, tc.name, tc.expectedError, (err != nil), err)
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}
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}
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}
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