Add RowScanner interface

rows_test.go

@@ -0,0 +1,30 @@
+package pgx_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/stretchr/testify/require"
+)
+
+type testRowScanner struct {
+	name string
+	age  int32
+}
+
+func (rs *testRowScanner) ScanRow(rows pgx.Rows) error {
+	return rows.Scan(&rs.name, &rs.age)
+}
+
+func TestRowScanner(t *testing.T) {
+	t.Parallel()
+
+	defaultConnTestRunner.RunTest(context.Background(), t, func(ctx context.Context, t testing.TB, conn *pgx.Conn) {
+		var s testRowScanner
+		err := conn.QueryRow(ctx, "select 'Adam' as name, 72 as height").Scan(&s)
+		require.NoError(t, err)
+		require.Equal(t, "Adam", s.name)
+		require.Equal(t, int32(72), s.age)
+	})
+}