Don't test macaddr8 on PostgreSQL 9.6

Author: kyleconroy

tests/macaddr8_test.go

@@ -0,0 +1,75 @@
+// +build !postgres9.6
+
+package tests
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/tabbed/pqtype"
+)
+
+// https://www.postgresql.org/docs/current/datatype-net-types.html#DATATYPE-MACADDR8
+func TestMacaddr8(t *testing.T) {
+	for _, addr := range []struct {
+		input  string
+		output string
+	}{
+		{
+			"08:00:2b:01:02:03:04:05",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"08-00-2b-01-02-03-04-05",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"08002b:0102030405",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"08002b-0102030405",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"0800.2b01.0203.0405",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"0800-2b01-0203-0405",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"08002b01:02030405",
+			"08:00:2b:01:02:03:04:05",
+		},
+		{
+			"08002b0102030405",
+			"08:00:2b:01:02:03:04:05",
+		},
+	} {
+		addr = addr
+		t.Run(addr.input, func(t *testing.T) {
+			var cidr pqtype.Macaddr
+			if err := db.QueryRow(fmt.Sprintf(`SELECT '%s'::macaddr8`, addr.input)).Scan(&cidr); err != nil {
+				t.Fatal(err)
+			}
+			if diff := cmp.Diff(true, cidr.Valid); diff != "" {
+				t.Errorf("valid mismatch (-want +got):\n%s", diff)
+			}
+			if diff := cmp.Diff(addr.output, cidr.Addr.String()); diff != "" {
+				t.Errorf("mismatch (-want +got):\n%s", diff)
+			}
+		})
+	}
+	t.Run("NULL", func(t *testing.T) {
+		var cidr pqtype.Macaddr
+		if err := db.QueryRow(fmt.Sprintf(`SELECT NULL::macaddr8`)).Scan(&cidr); err != nil {
+			t.Fatal(err)
+		}
+		if diff := cmp.Diff(false, cidr.Valid); diff != "" {
+			t.Errorf("valid mismatch (-want +got):\n%s", diff)
+		}
+	})
+}