259 lines
7.1 KiB
Go
259 lines
7.1 KiB
Go
/*
|
|
Copyright The containerd 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 io
|
|
|
|
import (
|
|
"bytes"
|
|
"io/ioutil"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
|
|
|
|
cioutil "github.com/containerd/containerd/pkg/ioutil"
|
|
)
|
|
|
|
func TestRedirectLogs(t *testing.T) {
|
|
// defaultBufSize is even number
|
|
const maxLen = defaultBufSize * 4
|
|
for desc, test := range map[string]struct {
|
|
input string
|
|
stream StreamType
|
|
maxLen int
|
|
tag []runtime.LogTag
|
|
content []string
|
|
}{
|
|
"stdout log": {
|
|
input: "test stdout log 1\ntest stdout log 2\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
"test stdout log 1",
|
|
"test stdout log 2",
|
|
},
|
|
},
|
|
"stderr log": {
|
|
input: "test stderr log 1\ntest stderr log 2\n",
|
|
stream: Stderr,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
"test stderr log 1",
|
|
"test stderr log 2",
|
|
},
|
|
},
|
|
"log ends without newline": {
|
|
input: "test stderr log 1\ntest stderr log 2",
|
|
stream: Stderr,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagPartial,
|
|
},
|
|
content: []string{
|
|
"test stderr log 1",
|
|
"test stderr log 2",
|
|
},
|
|
},
|
|
"log length equal to buffer size": {
|
|
input: strings.Repeat("a", defaultBufSize) + "\n" + strings.Repeat("a", defaultBufSize) + "\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize),
|
|
strings.Repeat("a", defaultBufSize),
|
|
},
|
|
},
|
|
"log length longer than buffer size": {
|
|
input: strings.Repeat("a", defaultBufSize*2+10) + "\n" + strings.Repeat("a", defaultBufSize*2+20) + "\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize*2+10),
|
|
strings.Repeat("a", defaultBufSize*2+20),
|
|
},
|
|
},
|
|
"log length equal to max length": {
|
|
input: strings.Repeat("a", maxLen) + "\n" + strings.Repeat("a", maxLen) + "\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", maxLen),
|
|
strings.Repeat("a", maxLen),
|
|
},
|
|
},
|
|
"log length exceed max length by 1": {
|
|
input: strings.Repeat("a", maxLen+1) + "\n" + strings.Repeat("a", maxLen+1) + "\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", maxLen),
|
|
"a",
|
|
strings.Repeat("a", maxLen),
|
|
"a",
|
|
},
|
|
},
|
|
"log length longer than max length": {
|
|
input: strings.Repeat("a", maxLen*2) + "\n" + strings.Repeat("a", maxLen*2+1) + "\n",
|
|
stream: Stdout,
|
|
maxLen: maxLen,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", maxLen),
|
|
strings.Repeat("a", maxLen),
|
|
strings.Repeat("a", maxLen),
|
|
strings.Repeat("a", maxLen),
|
|
"a",
|
|
},
|
|
},
|
|
"max length shorter than buffer size": {
|
|
input: strings.Repeat("a", defaultBufSize*3/2+10) + "\n" + strings.Repeat("a", defaultBufSize*3/2+20) + "\n",
|
|
stream: Stdout,
|
|
maxLen: defaultBufSize / 2,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", 10),
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", defaultBufSize*1/2),
|
|
strings.Repeat("a", 20),
|
|
},
|
|
},
|
|
"log length longer than max length, and (maxLen % defaultBufSize != 0)": {
|
|
input: strings.Repeat("a", defaultBufSize*2+10) + "\n" + strings.Repeat("a", defaultBufSize*2+20) + "\n",
|
|
stream: Stdout,
|
|
maxLen: defaultBufSize * 3 / 2,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
runtime.LogTagPartial,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize*3/2),
|
|
strings.Repeat("a", defaultBufSize*1/2+10),
|
|
strings.Repeat("a", defaultBufSize*3/2),
|
|
strings.Repeat("a", defaultBufSize*1/2+20),
|
|
},
|
|
},
|
|
"no limit if max length is 0": {
|
|
input: strings.Repeat("a", defaultBufSize*10+10) + "\n" + strings.Repeat("a", defaultBufSize*10+20) + "\n",
|
|
stream: Stdout,
|
|
maxLen: 0,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize*10+10),
|
|
strings.Repeat("a", defaultBufSize*10+20),
|
|
},
|
|
},
|
|
"no limit if max length is negative": {
|
|
input: strings.Repeat("a", defaultBufSize*10+10) + "\n" + strings.Repeat("a", defaultBufSize*10+20) + "\n",
|
|
stream: Stdout,
|
|
maxLen: -1,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize*10+10),
|
|
strings.Repeat("a", defaultBufSize*10+20),
|
|
},
|
|
},
|
|
"log length longer than buffer size with tailing \\r\\n": {
|
|
input: strings.Repeat("a", defaultBufSize-1) + "\r\n" + strings.Repeat("a", defaultBufSize-1) + "\r\n",
|
|
stream: Stdout,
|
|
maxLen: -1,
|
|
tag: []runtime.LogTag{
|
|
runtime.LogTagFull,
|
|
runtime.LogTagFull,
|
|
},
|
|
content: []string{
|
|
strings.Repeat("a", defaultBufSize-1),
|
|
strings.Repeat("a", defaultBufSize-1),
|
|
},
|
|
},
|
|
} {
|
|
t.Logf("TestCase %q", desc)
|
|
rc := ioutil.NopCloser(strings.NewReader(test.input))
|
|
buf := bytes.NewBuffer(nil)
|
|
wc := cioutil.NewNopWriteCloser(buf)
|
|
redirectLogs("test-path", rc, wc, test.stream, test.maxLen)
|
|
output := buf.String()
|
|
lines := strings.Split(output, "\n")
|
|
lines = lines[:len(lines)-1] // Discard empty string after last \n
|
|
assert.Len(t, lines, len(test.content))
|
|
for i := range lines {
|
|
fields := strings.SplitN(lines[i], string([]byte{delimiter}), 4)
|
|
require.Len(t, fields, 4)
|
|
_, err := time.Parse(timestampFormat, fields[0])
|
|
assert.NoError(t, err)
|
|
assert.EqualValues(t, test.stream, fields[1])
|
|
assert.Equal(t, string(test.tag[i]), fields[2])
|
|
assert.Equal(t, test.content[i], fields[3])
|
|
}
|
|
}
|
|
}
|