package url import ( "testing" "github.com/stretchr/testify/require" ) func TestLookup(t *testing.T) { _, err := Lookup("https://www.google.com") require.NoError(t, err) } func TestLocalhost(t *testing.T) { ip, err := Lookup("http://localhost:8080/foobar") require.NoError(t, err) require.Subset(t, []string{"127.0.0.1", "::1"}, []string{ip}) }