Add support for more than one listening server to one station, virtual and no virtual

config/tester.go

@@ -2,5 +2,12 @@ package config
 
 // Tester configuration
 type Tester struct {
-	Debug bool
+	Debug         bool
+	ListeningAddr string
+}
+
+// DefaultTester returns the default configuration for a tester
+// the ListeningAddr is used as virtual only when no running server is founded
+func DefaultTester() Tester {
+	return Tester{Debug: false, ListeningAddr: "iris-go.com:1993"}
 }