[TASK] add tests for webserver (for coveralls)

websocket/server_test.go

@@ -0,0 +1,17 @@
+package websocket
+
+import (
+	"testing"
+
+	"github.com/FreifunkBremen/freifunkmanager/runtime"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStart(t *testing.T) {
+	assert := assert.New(t)
+	nodes := &runtime.Nodes{}
+	assert.Nil(clients)
+	Start(nodes)
+	assert.NotNil(clients)
+	Close()
+}