mirror of
https://github.com/k3s-io/kubernetes.git
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261 lines
7.1 KiB
Go
261 lines
7.1 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 logs
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import (
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"bytes"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
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)
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func TestLogOptions(t *testing.T) {
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var (
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line = int64(8)
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bytes = int64(64)
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timestamp = metav1.Now()
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sinceseconds = int64(10)
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)
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for c, test := range []struct {
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apiOpts *v1.PodLogOptions
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expect *LogOptions
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}{
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{ // empty options
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apiOpts: &v1.PodLogOptions{},
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expect: &LogOptions{tail: -1, bytes: -1},
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},
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{ // test tail lines
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apiOpts: &v1.PodLogOptions{TailLines: &line},
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expect: &LogOptions{tail: line, bytes: -1},
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},
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{ // test limit bytes
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apiOpts: &v1.PodLogOptions{LimitBytes: &bytes},
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expect: &LogOptions{tail: -1, bytes: bytes},
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},
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{ // test since timestamp
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apiOpts: &v1.PodLogOptions{SinceTime: ×tamp},
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expect: &LogOptions{tail: -1, bytes: -1, since: timestamp.Time},
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},
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{ // test since seconds
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apiOpts: &v1.PodLogOptions{SinceSeconds: &sinceseconds},
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expect: &LogOptions{tail: -1, bytes: -1, since: timestamp.Add(-10 * time.Second)},
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},
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} {
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t.Logf("TestCase #%d: %+v", c, test)
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opts := NewLogOptions(test.apiOpts, timestamp.Time)
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assert.Equal(t, test.expect, opts)
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}
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}
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func TestParseLog(t *testing.T) {
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timestamp, err := time.Parse(timeFormatIn, "2016-10-20T18:39:20.57606443Z")
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assert.NoError(t, err)
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msg := &logMessage{}
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for c, test := range []struct {
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line string
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msg *logMessage
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err bool
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}{
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{ // Docker log format stdout
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line: `{"log":"docker stdout test log","stream":"stdout","time":"2016-10-20T18:39:20.57606443Z"}` + "\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stdout,
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log: []byte("docker stdout test log"),
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},
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},
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{ // Docker log format stderr
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line: `{"log":"docker stderr test log","stream":"stderr","time":"2016-10-20T18:39:20.57606443Z"}` + "\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stderr,
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log: []byte("docker stderr test log"),
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},
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},
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{ // CRI log format stdout
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line: "2016-10-20T18:39:20.57606443Z stdout F cri stdout test log\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stdout,
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log: []byte("cri stdout test log\n"),
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},
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},
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{ // CRI log format stderr
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line: "2016-10-20T18:39:20.57606443Z stderr F cri stderr test log\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stderr,
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log: []byte("cri stderr test log\n"),
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},
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},
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{ // Unsupported Log format
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line: "unsupported log format test log\n",
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msg: &logMessage{},
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err: true,
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},
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{ // Partial CRI log line
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line: "2016-10-20T18:39:20.57606443Z stdout P cri stdout partial test log\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stdout,
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log: []byte("cri stdout partial test log"),
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},
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},
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{ // Partial CRI log line with multiple log tags.
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line: "2016-10-20T18:39:20.57606443Z stdout P:TAG1:TAG2 cri stdout partial test log\n",
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msg: &logMessage{
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timestamp: timestamp,
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stream: runtimeapi.Stdout,
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log: []byte("cri stdout partial test log"),
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},
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},
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} {
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t.Logf("TestCase #%d: %+v", c, test)
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parse, err := getParseFunc([]byte(test.line))
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if test.err {
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assert.Error(t, err)
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continue
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}
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assert.NoError(t, err)
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err = parse([]byte(test.line), msg)
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assert.NoError(t, err)
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assert.Equal(t, test.msg, msg)
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}
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}
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func TestWriteLogs(t *testing.T) {
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timestamp := time.Unix(1234, 43210)
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log := "abcdefg\n"
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for c, test := range []struct {
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stream runtimeapi.LogStreamType
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since time.Time
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timestamp bool
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expectStdout string
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expectStderr string
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}{
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{ // stderr log
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stream: runtimeapi.Stderr,
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expectStderr: log,
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},
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{ // stdout log
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stream: runtimeapi.Stdout,
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expectStdout: log,
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},
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{ // since is after timestamp
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stream: runtimeapi.Stdout,
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since: timestamp.Add(1 * time.Second),
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},
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{ // timestamp enabled
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stream: runtimeapi.Stderr,
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timestamp: true,
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expectStderr: timestamp.Format(timeFormatOut) + " " + log,
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},
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} {
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t.Logf("TestCase #%d: %+v", c, test)
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msg := &logMessage{
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timestamp: timestamp,
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stream: test.stream,
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log: []byte(log),
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}
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stdoutBuf := bytes.NewBuffer(nil)
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stderrBuf := bytes.NewBuffer(nil)
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w := newLogWriter(stdoutBuf, stderrBuf, &LogOptions{since: test.since, timestamp: test.timestamp, bytes: -1})
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err := w.write(msg)
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assert.NoError(t, err)
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assert.Equal(t, test.expectStdout, stdoutBuf.String())
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assert.Equal(t, test.expectStderr, stderrBuf.String())
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}
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}
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func TestWriteLogsWithBytesLimit(t *testing.T) {
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timestamp := time.Unix(1234, 4321)
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timestampStr := timestamp.Format(timeFormatOut)
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log := "abcdefg\n"
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for c, test := range []struct {
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stdoutLines int
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stderrLines int
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bytes int
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timestamp bool
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expectStdout string
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expectStderr string
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}{
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{ // limit bytes less than one line
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stdoutLines: 3,
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bytes: 3,
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expectStdout: "abc",
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},
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{ // limit bytes across lines
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stdoutLines: 3,
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bytes: len(log) + 3,
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expectStdout: "abcdefg\nabc",
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},
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{ // limit bytes more than all lines
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stdoutLines: 3,
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bytes: 3 * len(log),
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expectStdout: "abcdefg\nabcdefg\nabcdefg\n",
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},
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{ // limit bytes for stderr
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stderrLines: 3,
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bytes: len(log) + 3,
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expectStderr: "abcdefg\nabc",
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},
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{ // limit bytes for both stdout and stderr, stdout first.
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stdoutLines: 1,
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stderrLines: 2,
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bytes: len(log) + 3,
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expectStdout: "abcdefg\n",
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expectStderr: "abc",
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},
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{ // limit bytes with timestamp
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stdoutLines: 3,
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timestamp: true,
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bytes: len(timestampStr) + 1 + len(log) + 2,
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expectStdout: timestampStr + " " + log + timestampStr[:2],
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},
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} {
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t.Logf("TestCase #%d: %+v", c, test)
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msg := &logMessage{
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timestamp: timestamp,
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log: []byte(log),
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}
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stdoutBuf := bytes.NewBuffer(nil)
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stderrBuf := bytes.NewBuffer(nil)
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w := newLogWriter(stdoutBuf, stderrBuf, &LogOptions{timestamp: test.timestamp, bytes: int64(test.bytes)})
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for i := 0; i < test.stdoutLines; i++ {
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msg.stream = runtimeapi.Stdout
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if err := w.write(msg); err != nil {
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assert.EqualError(t, err, errMaximumWrite.Error())
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}
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}
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for i := 0; i < test.stderrLines; i++ {
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msg.stream = runtimeapi.Stderr
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if err := w.write(msg); err != nil {
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assert.EqualError(t, err, errMaximumWrite.Error())
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}
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}
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assert.Equal(t, test.expectStdout, stdoutBuf.String())
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assert.Equal(t, test.expectStderr, stderrBuf.String())
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}
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}
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