cd1ad5646e
This integration test allows us to detect if a given feature gate will panic kubeadm. This builds on the assumption that a golang panic makes the process exit with the code 2. These tests are not trying to check if the init process succeeds or not, their only purpose is to ensure that the exit code of the `kubeadm init` invocation is not 2, thus, reflecting a golang panic. Some refactors had to be made to the test code, so we return the exit code along with stdout and stderr.
139 lines
3.8 KiB
Go
139 lines
3.8 KiB
Go
/*
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Copyright 2017 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 kubeadm
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import (
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"encoding/json"
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"regexp"
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"testing"
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"sigs.k8s.io/yaml"
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)
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const (
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ShortExpectedRegex = "^v.+\n$"
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NormalExpectedRegex = "^kubeadm version: &version\\.Info{Major:\".+\", Minor:\".+\", GitVersion:\".+\", GitCommit:\".+\", GitTreeState:\".+\", BuildDate:\".+\", GoVersion:\".+\", Compiler:\".+\", Platform:\".+\"}\n$"
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)
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var (
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VersionInfo = []string{"major", "minor", "gitVersion", "gitCommit", "gitTreeState", "buildDate", "goVersion", "compiler", "platform"}
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)
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func TestCmdVersion(t *testing.T) {
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if *kubeadmCmdSkip {
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t.Log("kubeadm cmd tests being skipped")
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t.Skip()
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}
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var versionTest = []struct {
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name string
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args string
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regex string
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expected bool
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}{
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{"invalid output option", "--output=valid", "", false},
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{"short output", "--output=short", ShortExpectedRegex, true},
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{"default output", "", NormalExpectedRegex, true},
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}
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kubeadmPath := getKubeadmPath()
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for _, rt := range versionTest {
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t.Run(rt.name, func(t *testing.T) {
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stdout, _, _, actual := RunCmd(kubeadmPath, "version", rt.args)
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if (actual == nil) != rt.expected {
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t.Errorf(
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"failed CmdVersion running 'kubeadm version %s' with an error: %v\n\texpected: %t\n\t actual: %t",
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rt.args,
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actual,
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rt.expected,
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(actual == nil),
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)
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}
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if rt.expected {
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matched, err := regexp.MatchString(rt.regex, stdout)
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if err != nil {
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t.Fatalf("encountered an error while trying to match 'kubeadm version %s' stdout: %v", rt.args, err)
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}
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if !matched {
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t.Errorf("'kubeadm version %s' stdout did not match expected regex; wanted: [%q], got: [%s]", rt.args, rt.regex, stdout)
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}
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}
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})
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}
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}
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func TestCmdVersionOutputJsonOrYaml(t *testing.T) {
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if *kubeadmCmdSkip {
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t.Log("kubeadm cmd tests being skipped")
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t.Skip()
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}
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var versionTest = []struct {
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name string
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args string
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format string
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expected bool
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}{
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{"json output", "--output=json", "json", true},
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{"yaml output", "--output=yaml", "yaml", true},
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}
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kubeadmPath := getKubeadmPath()
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for _, rt := range versionTest {
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t.Run(rt.name, func(t *testing.T) {
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stdout, _, _, actual := RunCmd(kubeadmPath, "version", rt.args)
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if (actual == nil) != rt.expected {
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t.Errorf(
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"failed CmdVersion running 'kubeadm version %s' with an error: %v\n\texpected: %t\n\t actual: %t",
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rt.args,
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actual,
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rt.expected,
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(actual == nil),
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)
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}
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if rt.expected {
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var obj interface{}
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switch rt.format {
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case "json":
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err := json.Unmarshal([]byte(stdout), &obj)
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if err != nil {
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t.Errorf("failed to parse json from 'kubeadm version %s': %s", rt.args, err)
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}
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case "yaml":
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err := yaml.Unmarshal([]byte(stdout), &obj)
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if err != nil {
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t.Errorf("failed to parse yaml from 'kubeadm version %s': %s", rt.args, err)
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}
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}
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m := obj.(map[string]interface{})
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if m["clientVersion"] == nil {
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t.Errorf("failed to get the information of clientVersion from 'kubeadm version %s'", rt.args)
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}
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info := m["clientVersion"].(map[string]interface{})
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for _, key := range VersionInfo {
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if len(info[key].(string)) == 0 {
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t.Errorf("failed to get the information of %s from 'kubeadm version %s'", key, rt.args)
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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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