test/e2e: improve command timeout handling

Basically commit ada4e1a8c1 for e2e tests. The timeout does not kill the
process so if it is stucked it hangs forever. So make sure we kill it
via SIGABRT.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

test/utils/utils.go

@@ -9,6 +9,7 @@ import (
 	"os/exec"
 	"runtime"
 	"strings"
+	"syscall"
 	"time"
 
 	crypto_rand "crypto/rand"
@@ -368,9 +369,15 @@ func (s *PodmanSession) WaitWithDefaultTimeout() {
 // WaitWithTimeout waits for process finished with DefaultWaitTimeout
 func (s *PodmanSession) WaitWithTimeout(timeout int) {
 	Eventually(s, timeout).Should(Exit(), func() string {
-		// in case of timeouts show output
-		return fmt.Sprintf("command timed out after %ds: %v\nSTDOUT: %s\nSTDERR: %s",
-			timeout, s.Command.Args, string(s.Out.Contents()), string(s.Err.Contents()))
+		// Note eventually does not kill the command as such the command is leaked forever without killing it
+		// Also let's use SIGABRT to create a go stack trace so in case there is a deadlock we see it.
+		s.Signal(syscall.SIGABRT)
+		// Give some time to let the command print the output so it is not printed much later
+		// in the log at the wrong place.
+		time.Sleep(1 * time.Second)
+		// As the output is logged by default there no need to dump it here.
+		return fmt.Sprintf("command timed out after %ds: %v",
+			timeout, s.Command.Args)
 	})
 	os.Stdout.Sync()
 	os.Stderr.Sync()