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daemon_test.go
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daemon_test.go
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/*
* Copyright (c) 2022, MegaEase
* All rights reserved.
*
* 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:https://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 daemon
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/megaease/easeprobe/global"
"github.com/stretchr/testify/assert"
)
func testPIDFile(pidfile string, t *testing.T) {
c, err := NewPIDFile(pidfile)
if err != nil {
t.Fatalf("Could not create the pid file, %v", err)
}
_, err = c.CheckPIDFile()
if err == nil {
t.Fatalf("Could not found the pid file, %v", err)
}
if err := c.RemovePIDFile(); err != nil {
t.Fatalf("Could not remove the pid file, %v", err)
}
}
func TestPIDFileNotExist(t *testing.T) {
pidfile := filepath.Join(global.GetWorkDir(), global.DefaultPIDFile)
testPIDFile(pidfile, t)
}
func TestPIDFileExist(t *testing.T) {
path := filepath.Join(global.GetWorkDir(), global.DefaultPIDFile)
ioutil.WriteFile(path, []byte("1"), 0644)
testPIDFile(path, t)
}
func TestPIDFileDir(t *testing.T) {
pidfile := global.GetWorkDir()
testPIDFile(pidfile, t)
}
func TestPIDFileSymLink(t *testing.T) {
path := filepath.Join(global.GetWorkDir(), "test")
target := "test.txt"
os.MkdirAll(path, 0755)
ioutil.WriteFile(filepath.Join(path, "test.txt"), []byte("Hello\n"), 0644)
symlink := filepath.Join(path, "easeprobe.pid")
os.Symlink(target, symlink)
c, err := NewPIDFile(symlink)
if err != nil {
t.Fatalf("Could not create the pid file, %v", err)
}
_, err = c.CheckPIDFile()
if err == nil {
t.Fatalf("Could not found the pid file, %v", err)
}
buf, err := ioutil.ReadFile(filepath.Join(path, "test.txt"))
if err != nil {
t.Fatalf("Could not read the pid file, %v", err)
}
assert.Equal(t, "Hello\n", string(buf))
if err := c.RemovePIDFile(); err != nil {
t.Fatalf("Could not remove the pid file, %v", err)
}
os.RemoveAll(path)
}