diff --git a/net/address_test.go b/net/address_test.go
index a495723fa..f8af392c4 100644
--- a/net/address_test.go
+++ b/net/address_test.go
@@ -17,6 +17,7 @@ func TestIPv4Address(t *testing.T) {
 	assert.Bool(addr.IsIPv4()).IsTrue()
 	assert.Bytes(addr.IP).Equals(ip)
 	assert.Uint16(addr.Port).Equals(port)
+	assert.String(addr.String()).Equals("1.2.3.4:80")
 }
 
 func TestIPv6Address(t *testing.T) {
@@ -35,6 +36,7 @@ func TestIPv6Address(t *testing.T) {
 	assert.Bool(addr.IsIPv6()).IsTrue()
 	assert.Bytes(addr.IP).Equals(ip)
 	assert.Uint16(addr.Port).Equals(port)
+	assert.String(addr.String()).Equals("[102:304:102:304:102:304:102:304]:443")
 }
 
 func TestDomainAddress(t *testing.T) {
@@ -48,4 +50,5 @@ func TestDomainAddress(t *testing.T) {
 	assert.Bool(addr.IsDomain()).IsTrue()
 	assert.String(addr.Domain).Equals(domain)
 	assert.Uint16(addr.Port).Equals(port)
+	assert.String(addr.String()).Equals("v2ray.com:443")
 }