github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/pkg/binlog/event/helper_test.go (about)

     1  // Copyright 2019 PingCAP, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package event
    15  
    16  import (
    17  	"testing"
    18  	"time"
    19  
    20  	gmysql "github.com/go-mysql-org/go-mysql/mysql"
    21  	"github.com/go-mysql-org/go-mysql/replication"
    22  	"github.com/pingcap/tiflow/dm/pkg/gtid"
    23  	"github.com/pingcap/tiflow/dm/pkg/terror"
    24  	"github.com/stretchr/testify/require"
    25  )
    26  
    27  func TestGTIDsFromPreviousGTIDsEvent(t *testing.T) {
    28  	t.Parallel()
    29  	var (
    30  		header = &replication.EventHeader{
    31  			Timestamp: uint32(time.Now().Unix()),
    32  			ServerID:  11,
    33  		}
    34  		latestPos uint32 = 4
    35  	)
    36  
    37  	// invalid binlog type, QueryEvent
    38  	queryEv, err := GenQueryEvent(header, latestPos, 0, 0, 0, nil, []byte("schema"), []byte("BEGIN"))
    39  	require.Nil(t, err)
    40  	gSet, err := GTIDsFromPreviousGTIDsEvent(queryEv)
    41  	require.True(t, terror.ErrBinlogPrevGTIDEvNotValid.Equal(err))
    42  	require.Nil(t, gSet)
    43  
    44  	// valid MySQL GTIDs
    45  	gtidStr := "3ccc475b-2343-11e7-be21-6c0b84d59f30:1-14,406a3f61-690d-11e7-87c5-6c92bf46f384:1-94321383"
    46  	gSetExpect, err := gtid.ParserGTID(gmysql.MySQLFlavor, gtidStr)
    47  	require.Nil(t, err)
    48  	previousGTIDEv, err := GenPreviousGTIDsEvent(header, latestPos, gSetExpect)
    49  	require.Nil(t, err)
    50  	gSet, err = GTIDsFromPreviousGTIDsEvent(previousGTIDEv)
    51  	require.Nil(t, err)
    52  	require.Equal(t, gSetExpect, gSet)
    53  }
    54  
    55  func TestGTIDsFromMariaDBGTIDListEvent(t *testing.T) {
    56  	t.Parallel()
    57  	var (
    58  		header = &replication.EventHeader{
    59  			Timestamp: uint32(time.Now().Unix()),
    60  			ServerID:  11,
    61  		}
    62  		latestPos uint32 = 4
    63  	)
    64  
    65  	// invalid binlog type, QueryEvent
    66  	queryEv, err := GenQueryEvent(header, latestPos, 0, 0, 0, nil, []byte("schema"), []byte("BEGIN"))
    67  	require.Nil(t, err)
    68  	gSet, err := GTIDsFromMariaDBGTIDListEvent(queryEv)
    69  	require.Regexp(t, ".*should be a MariadbGTIDListEvent.*", err)
    70  	require.Nil(t, gSet)
    71  
    72  	// valid MariaDB GTIDs
    73  	gtidStr := "1-1-1,2-2-2"
    74  	gSetExpect, err := gtid.ParserGTID(gmysql.MariaDBFlavor, gtidStr)
    75  	require.Nil(t, err)
    76  	mariaGTIDListEv, err := GenMariaDBGTIDListEvent(header, latestPos, gSetExpect)
    77  	require.Nil(t, err)
    78  	gSet, err = GTIDsFromMariaDBGTIDListEvent(mariaGTIDListEv)
    79  	require.Nil(t, err)
    80  	require.Equal(t, gSetExpect, gSet)
    81  }