github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/spanz/set_test.go (about)

     1  // Copyright 2022 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 spanz
    15  
    16  import (
    17  	"testing"
    18  
    19  	"github.com/pingcap/tiflow/cdc/processor/tablepb"
    20  	"github.com/stretchr/testify/require"
    21  )
    22  
    23  func TestSet(t *testing.T) {
    24  	s := NewSet()
    25  	s.Add(tablepb.Span{TableID: 1})
    26  	s.Add(tablepb.Span{TableID: 1})
    27  	s.Add(tablepb.Span{TableID: 2})
    28  	s.Add(tablepb.Span{TableID: 3})
    29  
    30  	require.Equal(t, 3, s.Size())
    31  	s.Remove(tablepb.Span{TableID: 3})
    32  	require.Equal(t, 2, s.Size())
    33  
    34  	require.True(t, s.Contain(tablepb.Span{TableID: 2}))
    35  	require.False(t, s.Contain(tablepb.Span{TableID: 5}))
    36  
    37  	require.Equal(t, []tablepb.Span{{TableID: 1}, {TableID: 2}}, s.Keys())
    38  }