From 45eaef24319897f5b1679c9d1aa7d88702cce905 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jano=C5=A1=20Gulja=C5=A1?= <janos@users.noreply.github.com>
Date: Thu, 9 Aug 2018 16:15:59 +0200
Subject: cmd/swarm: solve rare cases of using the same random port in tests
 (#17352)

---
 cmd/swarm/config_test.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'cmd/swarm/config_test.go')

diff --git a/cmd/swarm/config_test.go b/cmd/swarm/config_test.go
index d5011e3a7..02198f878 100644
--- a/cmd/swarm/config_test.go
+++ b/cmd/swarm/config_test.go
@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"net"
 	"os"
 	"os/exec"
 	"testing"
@@ -559,3 +560,16 @@ func TestValidateConfig(t *testing.T) {
 		}
 	}
 }
+
+func assignTCPPort() (string, error) {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		return "", err
+	}
+	l.Close()
+	_, port, err := net.SplitHostPort(l.Addr().String())
+	if err != nil {
+		return "", err
+	}
+	return port, nil
+}
-- 
cgit v1.2.3