snapshot of https://github.com/nats-io/nats-server.git (main, 2026-09-15; blobs > 131072B omitted)

test/port_test.go

@@ -0,0 +1,52 @@
+// Copyright 2014-2019 The NATS Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package test
+
+import (
+	"net"
+	"strconv"
+	"testing"
+
+	"github.com/nats-io/nats-server/v2/server"
+)
+
+func TestResolveRandomPort(t *testing.T) {
+	opts := &server.Options{Host: "127.0.0.1", Port: server.RANDOM_PORT, NoSigs: true}
+	s := RunServer(opts)
+	defer s.Shutdown()
+
+	addr := s.Addr()
+	_, port, err := net.SplitHostPort(addr.String())
+	if err != nil {
+		t.Fatalf("Expected no error: Got %v\n", err)
+	}
+
+	portNum, err := strconv.Atoi(port)
+	if err != nil {
+		t.Fatalf("Expected no error: Got %v\n", err)
+	}
+
+	if portNum == server.DEFAULT_PORT {
+		t.Fatalf("Expected server to choose a random port\nGot: %d", server.DEFAULT_PORT)
+	}
+
+	if portNum == server.RANDOM_PORT {
+		t.Fatalf("Expected server to choose a random port\nGot: %d", server.RANDOM_PORT)
+	}
+
+	if opts.Port != portNum {
+		t.Fatalf("Options port (%d) should have been overridden by chosen random port (%d)",
+			opts.Port, portNum)
+	}
+}