--- /dev/null
+// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
+//
+// Copyright 2016 The Go-MySQL-Driver Authors. All rights reserved.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package mysql
+
+import (
+ "database/sql/driver"
+ "testing"
+)
+
+func TestInterpolateParams(t *testing.T) {
+ mc := &mysqlConn{
+ buf: newBuffer(nil),
+ maxAllowedPacket: maxPacketSize,
+ cfg: &Config{
+ InterpolateParams: true,
+ },
+ }
+
+ q, err := mc.interpolateParams("SELECT ?+?", []driver.Value{int64(42), "gopher"})
+ if err != nil {
+ t.Errorf("Expected err=nil, got %#v", err)
+ return
+ }
+ expected := `SELECT 42+'gopher'`
+ if q != expected {
+ t.Errorf("Expected: %q\nGot: %q", expected, q)
+ }
+}
+
+func TestInterpolateParamsTooManyPlaceholders(t *testing.T) {
+ mc := &mysqlConn{
+ buf: newBuffer(nil),
+ maxAllowedPacket: maxPacketSize,
+ cfg: &Config{
+ InterpolateParams: true,
+ },
+ }
+
+ q, err := mc.interpolateParams("SELECT ?+?", []driver.Value{int64(42)})
+ if err != driver.ErrSkip {
+ t.Errorf("Expected err=driver.ErrSkip, got err=%#v, q=%#v", err, q)
+ }
+}
+
+// We don't support placeholder in string literal for now.
+// https://github.com/go-sql-driver/mysql/pull/490
+func TestInterpolateParamsPlaceholderInString(t *testing.T) {
+ mc := &mysqlConn{
+ buf: newBuffer(nil),
+ maxAllowedPacket: maxPacketSize,
+ cfg: &Config{
+ InterpolateParams: true,
+ },
+ }
+
+ q, err := mc.interpolateParams("SELECT 'abc?xyz',?", []driver.Value{int64(42)})
+ // When InterpolateParams support string literal, this should return `"SELECT 'abc?xyz', 42`
+ if err != driver.ErrSkip {
+ t.Errorf("Expected err=driver.ErrSkip, got err=%#v, q=%#v", err, q)
+ }
+}
+
+func TestCheckNamedValue(t *testing.T) {
+ value := driver.NamedValue{Value: ^uint64(0)}
+ x := &mysqlConn{}
+ err := x.CheckNamedValue(&value)
+
+ if err != nil {
+ t.Fatal("uint64 high-bit not convertible", err)
+ }
+
+ if value.Value != "18446744073709551615" {
+ t.Fatalf("uint64 high-bit not converted, got %#v %T", value.Value, value.Value)
+ }
+}