Claude
f9b8770303
Test / test (push) Canceled after 0s
Test / fuzz (./compat, FuzzParseFormat) (push) Canceled after 0s
Test / fuzz (./formatter, FuzzFormatJSON) (push) Canceled after 0s
Test / fuzz (./formatter, FuzzFormatTextPolicy) (push) Canceled after 0s
Test / fuzz (./sanitizer, FuzzSanitize) (push) Canceled after 0s
Test / fuzz (./sanitizer, FuzzSerializerJSON) (push) Canceled after 0s
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
//go:build linux || freebsd || darwin
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package log
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import (
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"os"
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"path/filepath"
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"strings"
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"syscall"
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"testing"
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"time"
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)
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// A symlink or FIFO planted at the log path is neither followed nor allowed to
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// block the processor; a FIFO that opens is still not a regular file. The
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// refusal is reported once.
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func TestReopenRefusesNonRegularPath(t *testing.T) {
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plant := map[string]func(t *testing.T, path, target string){
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"symlink": func(t *testing.T, path, target string) {
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mustNoErr(t, os.WriteFile(target, nil, 0644), "target")
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mustNoErr(t, os.Symlink(target, path), "symlink")
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},
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"fifo": func(t *testing.T, path, _ string) {
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mustNoErr(t, syscall.Mkfifo(path, 0644), "mkfifo")
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},
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"fifo with a reader": func(t *testing.T, path, _ string) {
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mustNoErr(t, syscall.Mkfifo(path, 0644), "mkfifo")
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r, err := os.OpenFile(path, os.O_RDONLY|syscall.O_NONBLOCK, 0)
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mustNoErr(t, err, "reader")
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t.Cleanup(func() { _ = r.Close() })
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},
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}
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for name, fn := range plant {
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t.Run(name, func(t *testing.T) {
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l, path, diags := followLogger(t, 0)
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logFlush(t, l, "before")
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target := filepath.Join(t.TempDir(), "target")
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mustNoErr(t, os.Remove(path), "rm")
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fn(t, path, target)
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time.Sleep(fileCheckInterval + 5*time.Millisecond)
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logFlush(t, l, "after") // a blocked processor fails the Flush
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if data, err := os.ReadFile(target); err == nil {
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equal(t, len(data), 0, "bytes written through the symlink")
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}
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equal(t, l.state.TotalReopens.Load(), uint64(0), "reopens")
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if d := diags(); len(d) != 1 || !strings.Contains(d[0], "not reopened") {
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t.Errorf("diagnostics %q", d)
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}
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})
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}
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}
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