github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/master/shardddl/info_test.go (about)

     1  // Copyright 2020 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 shardddl
    15  
    16  import (
    17  	"testing"
    18  
    19  	"github.com/pingcap/tiflow/dm/pkg/shardddl/pessimism"
    20  	"github.com/stretchr/testify/require"
    21  )
    22  
    23  func TestInfoSlice(t *testing.T) {
    24  	var (
    25  		task          = "task"
    26  		source1       = "mysql-replica-1"
    27  		source2       = "mysql-replica-2"
    28  		source3       = "mysql-replica-3"
    29  		schema, table = "foo", "bar"
    30  		DDLs          = []string{"ALTER TABLE bar ADD COLUMN c1 INT"}
    31  		ifm           = map[string]pessimism.Info{
    32  			source3: pessimism.NewInfo(task, source3, schema, table, DDLs),
    33  			source2: pessimism.NewInfo(task, source2, schema, table, DDLs),
    34  			source1: pessimism.NewInfo(task, source1, schema, table, DDLs),
    35  		}
    36  	)
    37  
    38  	ifs := pessimismInfoMapToSlice(ifm)
    39  	require.Len(t, ifs, 3)
    40  	require.Equal(t, ifm[source1], ifs[0])
    41  	require.Equal(t, ifm[source2], ifs[1])
    42  	require.Equal(t, ifm[source3], ifs[2])
    43  }