pkg/transport: add NewKeepAliveListener test

pkg/transport/keepalive_listener_test.go

@@ -0,0 +1,39 @@
+/*
+   Copyright 2015 CoreOS, Inc.
+
+   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 transport
+
+import (
+	"net/http"
+	"testing"
+)
+
+// TestNewKeepAliveListener tests NewKeepAliveListener returns a listener
+// that accepts connections.
+// TODO: verify the keepalive option is set correctly
+func TestNewKeepAliveListener(t *testing.T) {
+	ln, err := NewKeepAliveListener(":0", "http", TLSInfo{})
+	if err != nil {
+		t.Fatalf("unexpected NewKeepAliveListener error: %v", err)
+	}
+
+	go http.Get("http://" + ln.Addr().String())
+	conn, err := ln.Accept()
+	if err != nil {
+		t.Fatalf("unexpected Accept error: %v", err)
+	}
+	conn.Close()
+}