Implement tests for the port range.

transport/http_transport_test.go

@@ -0,0 +1,43 @@
+package transport_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/micro/go-micro/transport"
+)
+
+func TestHTTPTransport_PortRange(t *testing.T) {
+	tp := transport.NewTransport([]string{})
+
+	lsn1, err := tp.Listen(":44444-44448")
+	if err != nil {
+		t.Errorf("Did not expect an error, got %s", err)
+	}
+	expectedPort(t, "44444", lsn1)
+
+	lsn2, err := tp.Listen(":44444-44448")
+	if err != nil {
+		t.Errorf("Did not expect an error, got %s", err)
+	}
+	expectedPort(t, "44445", lsn2)
+
+	lsn, err := tp.Listen(":0")
+	if err != nil {
+		t.Errorf("Did not expect an error, got %s", err)
+	}
+
+	lsn.Close()
+	lsn1.Close()
+	lsn2.Close()
+}
+
+func expectedPort(t *testing.T, expected string, lsn transport.Listener) {
+	parts := strings.Split(lsn.Addr(), ":")
+	port := parts[len(parts)-1]
+
+	if port != expected {
+		lsn.Close()
+		t.Errorf("Expected address to be `%s`, got `%s`", expected, port)
+	}
+}