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// Copyright 2012-2018 The NATS 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 test
import (
"fmt"
"io/ioutil"
"os"
"testing"
)
func TestPidFile(t *testing.T) {
opts := DefaultTestOptions
tmpDir, err := ioutil.TempDir("", "_gnatsd")
if err != nil {
t.Fatal("Could not create tmp dir")
}
defer os.RemoveAll(tmpDir)
file, err := ioutil.TempFile(tmpDir, "gnatsd:pid_")
if err != nil {
t.Fatalf("Unable to create temp file: %v", err)
}
file.Close()
opts.PidFile = file.Name()
s := RunServer(&opts)
s.Shutdown()
buf, err := ioutil.ReadFile(opts.PidFile)
if err != nil {
t.Fatalf("Could not read pid_file: %v", err)
}
if len(buf) <= 0 {
t.Fatal("Expected a non-zero length pid_file")
}
pid := 0
fmt.Sscanf(string(buf), "%d", &pid)
if pid != os.Getpid() {
t.Fatalf("Expected pid to be %d, got %d\n", os.Getpid(), pid)
}
}
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