/usr/share/gocode/src/github.com/tendermint/go-autofile/autofile_test.go is in golang-github-tendermint-go-autofile-dev 0.0~20170129~0git48b17de-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | package autofile
import (
. "github.com/tendermint/go-common"
"os"
"sync/atomic"
"syscall"
"testing"
"time"
)
func TestSIGHUP(t *testing.T) {
// First, create an AutoFile writing to a tempfile dir
file, name := Tempfile("sighup_test")
err := file.Close()
if err != nil {
t.Fatalf("Error creating tempfile: %v", err)
}
// Here is the actual AutoFile
af, err := OpenAutoFile(name)
if err != nil {
t.Fatalf("Error creating autofile: %v", err)
}
// Write to the file.
_, err = af.Write([]byte("Line 1\n"))
if err != nil {
t.Fatalf("Error writing to autofile: %v", err)
}
_, err = af.Write([]byte("Line 2\n"))
if err != nil {
t.Fatalf("Error writing to autofile: %v", err)
}
// Move the file over
err = os.Rename(name, name+"_old")
if err != nil {
t.Fatalf("Error moving autofile: %v", err)
}
// Send SIGHUP to self.
oldSighupCounter := atomic.LoadInt32(&sighupCounter)
syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
// Wait a bit... signals are not handled synchronously.
for atomic.LoadInt32(&sighupCounter) == oldSighupCounter {
time.Sleep(time.Millisecond * 10)
}
// Write more to the file.
_, err = af.Write([]byte("Line 3\n"))
if err != nil {
t.Fatalf("Error writing to autofile: %v", err)
}
_, err = af.Write([]byte("Line 4\n"))
if err != nil {
t.Fatalf("Error writing to autofile: %v", err)
}
err = af.Close()
if err != nil {
t.Fatalf("Error closing autofile")
}
// Both files should exist
if body := MustReadFile(name + "_old"); string(body) != "Line 1\nLine 2\n" {
t.Errorf("Unexpected body %s", body)
}
if body := MustReadFile(name); string(body) != "Line 3\nLine 4\n" {
t.Errorf("Unexpected body %s", body)
}
}
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