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errors_test.go
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errors_test.go
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 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 (
"bytes"
"errors"
"log"
"testing"
)
func TestErrorsSetLogger(t *testing.T) {
previous := errLog
defer func() {
errLog = previous
}()
// set up logger
const expected = "prefix: test\n"
buffer := bytes.NewBuffer(make([]byte, 0, 64))
logger := log.New(buffer, "prefix: ", 0)
// print
SetLogger(logger)
errLog.Print("test")
// check result
if actual := buffer.String(); actual != expected {
t.Errorf("expected %q, got %q", expected, actual)
}
}
func TestErrorsStrictIgnoreNotes(t *testing.T) {
runTests(t, dsn+"&sql_notes=false", func(dbt *DBTest) {
dbt.mustExec("DROP TABLE IF EXISTS does_not_exist")
})
}
func TestMySQLErrIs(t *testing.T) {
infraErr := &MySQLError{Number: 1234, Message: "the server is on fire"}
otherInfraErr := &MySQLError{Number: 1234, Message: "the datacenter is flooded"}
if !errors.Is(infraErr, otherInfraErr) {
t.Errorf("expected errors to be the same: %+v %+v", infraErr, otherInfraErr)
}
differentCodeErr := &MySQLError{Number: 5678, Message: "the server is on fire"}
if errors.Is(infraErr, differentCodeErr) {
t.Fatalf("expected errors to be different: %+v %+v", infraErr, differentCodeErr)
}
nonMysqlErr := errors.New("not a mysql error")
if errors.Is(infraErr, nonMysqlErr) {
t.Fatalf("expected errors to be different: %+v %+v", infraErr, nonMysqlErr)
}
}