From 1b34e1f2501b8def0a0fb4eae28bf6c19a8adde2 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Fri, 13 Mar 2026 20:52:54 +0200
Subject: Fix serverless output draining regressions

---
 integrationtests/commandutils.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'integrationtests/commandutils.go')

diff --git a/integrationtests/commandutils.go b/integrationtests/commandutils.go
index 6dfe069..86feee2 100644
--- a/integrationtests/commandutils.go
+++ b/integrationtests/commandutils.go
@@ -2,6 +2,7 @@ package integrationtests
 
 import (
 	"bufio"
+	"bytes"
 	"context"
 	"fmt"
 	"io"
@@ -36,7 +37,9 @@ func runCommand(ctx context.Context, t *testing.T, stdoutFile, cmdStr string,
 	cmd := exec.CommandContext(ctx, cmdStr, args...)
 	out, err := cmd.CombinedOutput()
 	t.Log("Done running command!", err)
-	_, _ = fd.Write(out)
+	if _, copyErr := io.Copy(fd, bytes.NewReader(out)); copyErr != nil {
+		return exitCodeFromError(err), copyErr
+	}
 
 	return exitCodeFromError(err), err
 }
-- 
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