mirror of https://github.com/k3s-io/k3s
121 lines
2.9 KiB
Go
121 lines
2.9 KiB
Go
/*
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Copyright 2014 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 util
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import (
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"fmt"
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"math/rand"
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"net"
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"net/http"
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"net/http/httptest"
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"strconv"
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"testing"
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"time"
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etcd "github.com/coreos/etcd/client"
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"github.com/stretchr/testify/assert"
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)
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const validEtcdVersion = "etcd 2.0.9"
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func TestIsEtcdNotFound(t *testing.T) {
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try := func(err error, isNotFound bool) {
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if IsEtcdNotFound(err) != isNotFound {
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t.Errorf("Expected %#v to return %v, but it did not", err, isNotFound)
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}
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}
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try(&etcd.Error{Code: 101}, false)
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try(nil, false)
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try(fmt.Errorf("some other kind of error"), false)
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}
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func TestGetEtcdVersion_ValidVersion(t *testing.T) {
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testServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, validEtcdVersion)
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}))
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defer testServer.Close()
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var version string
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var err error
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if version, err = GetEtcdVersion(testServer.URL); err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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assert.Equal(t, validEtcdVersion, version, "Unexpected version")
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assert.Nil(t, err)
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}
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func TestGetEtcdVersion_ErrorStatus(t *testing.T) {
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testServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusServiceUnavailable)
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}))
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defer testServer.Close()
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_, err := GetEtcdVersion(testServer.URL)
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assert.NotNil(t, err)
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}
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func TestGetEtcdVersion_NotListening(t *testing.T) {
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portIsOpen := func(port int) bool {
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conn, err := net.DialTimeout("tcp", "127.0.0.1:"+strconv.Itoa(port), 1*time.Second)
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if err == nil {
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conn.Close()
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return true
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}
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return false
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}
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port := rand.Intn((1 << 16) - 1)
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for tried := 0; portIsOpen(port); tried++ {
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if tried >= 10 {
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t.Fatal("Couldn't find a closed TCP port to continue testing")
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}
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port++
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}
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_, err := GetEtcdVersion("http://127.0.0.1:" + strconv.Itoa(port))
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assert.NotNil(t, err)
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}
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func TestEtcdHealthCheck(t *testing.T) {
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tests := []struct {
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data string
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expectErr bool
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}{
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{
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data: "{\"health\": \"true\"}",
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expectErr: false,
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},
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{
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data: "{\"health\": \"false\"}",
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expectErr: true,
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},
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{
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data: "invalid json",
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expectErr: true,
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},
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}
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for _, test := range tests {
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err := EtcdHealthCheck([]byte(test.data))
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if err != nil && !test.expectErr {
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t.Errorf("unexpected error: %v", err)
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}
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if err == nil && test.expectErr {
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t.Error("unexpected non-error")
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}
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}
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}
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