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75 lines
1.7 KiB
75 lines
1.7 KiB
// nolint: goimports
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package autofile
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import (
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"os"
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"sync/atomic"
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"syscall"
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"testing"
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"time"
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. "github.com/tendermint/tmlibs/common"
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)
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func TestSIGHUP(t *testing.T) {
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// First, create an AutoFile writing to a tempfile dir
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file, name := Tempfile("sighup_test")
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err := file.Close()
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if err != nil {
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t.Fatalf("Error creating tempfile: %v", err)
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}
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// Here is the actual AutoFile
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af, err := OpenAutoFile(name)
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if err != nil {
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t.Fatalf("Error creating autofile: %v", err)
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}
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// Write to the file.
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_, err = af.Write([]byte("Line 1\n"))
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if err != nil {
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t.Fatalf("Error writing to autofile: %v", err)
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}
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_, err = af.Write([]byte("Line 2\n"))
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if err != nil {
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t.Fatalf("Error writing to autofile: %v", err)
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}
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// Move the file over
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err = os.Rename(name, name+"_old")
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if err != nil {
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t.Fatalf("Error moving autofile: %v", err)
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}
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// Send SIGHUP to self.
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oldSighupCounter := atomic.LoadInt32(&sighupCounter)
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syscall.Kill(syscall.Getpid(), syscall.SIGHUP)
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// Wait a bit... signals are not handled synchronously.
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for atomic.LoadInt32(&sighupCounter) == oldSighupCounter {
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time.Sleep(time.Millisecond * 10)
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}
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// Write more to the file.
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_, err = af.Write([]byte("Line 3\n"))
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if err != nil {
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t.Fatalf("Error writing to autofile: %v", err)
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}
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_, err = af.Write([]byte("Line 4\n"))
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if err != nil {
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t.Fatalf("Error writing to autofile: %v", err)
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}
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err = af.Close()
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if err != nil {
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t.Fatalf("Error closing autofile")
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}
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// Both files should exist
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if body := MustReadFile(name + "_old"); string(body) != "Line 1\nLine 2\n" {
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t.Errorf("Unexpected body %s", body)
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}
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if body := MustReadFile(name); string(body) != "Line 3\nLine 4\n" {
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t.Errorf("Unexpected body %s", body)
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}
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}
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