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fix: address concurrent group output causing flaky tests (#2350)

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This commit is contained in:
Timothy Rule
2025-11-11 18:36:32 +01:00
committed by GitHub
parent c71241bcbd
commit 39c86992bd
2 changed files with 13 additions and 8 deletions
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9
internal/output/group.go
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@@ -44,10 +44,15 @@ func (gw *groupWriter) close() error {
// don't print begin/end messages if there's no buffered entries
return nil
}
if _, err := io.WriteString(gw.writer, gw.begin); err != nil {
return err
if len(gw.begin) > 0 {
// Rewrite the gw.buff with the beginning text.
s := gw.buff.String()
gw.buff.Reset()
gw.buff.WriteString(gw.begin)
gw.buff.WriteString(s)
}
gw.buff.WriteString(gw.end)
// Return the entire gw.buff to ensure the group is written atomically to stdout.
_, err := io.Copy(gw.writer, &gw.buff)
return err
}