github.com/matrixorigin/matrixone@v1.2.0/pkg/vm/engine/tae/catalog/node_test.go (about)

     1  // Copyright 2021 Matrix Origin
     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  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package catalog
    16  
    17  import (
    18  	"testing"
    19  	"time"
    20  
    21  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/common"
    22  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/testutils"
    23  	"github.com/stretchr/testify/assert"
    24  )
    25  
    26  type testNode struct {
    27  	val int
    28  }
    29  
    30  func newTestNode(val int) *testNode {
    31  	return &testNode{val: val}
    32  }
    33  func compareTestNode(n, on *testNode) int {
    34  	if n.val > on.val {
    35  		return 1
    36  	} else if n.val < on.val {
    37  		return -1
    38  	}
    39  	return 0
    40  }
    41  
    42  func TestDLNode(t *testing.T) {
    43  	defer testutils.AfterTest(t)()
    44  	link := common.NewGenericSortedDList(compareTestNode)
    45  	now := time.Now()
    46  	var node *common.GenericDLNode[*testNode]
    47  	nodeCnt := 10
    48  	for i := 0; i < nodeCnt; i++ {
    49  		n := link.Insert(newTestNode(i))
    50  		if i == 5 {
    51  			node = n
    52  		}
    53  	}
    54  	t.Log(time.Since(now))
    55  	cnt := 0
    56  	link.Loop(func(n *common.GenericDLNode[*testNode]) bool {
    57  		cnt++
    58  		return true
    59  	}, true)
    60  	assert.Equal(t, nodeCnt, cnt)
    61  	assert.Equal(t, 5, node.GetPayload().val)
    62  
    63  	link.Delete(node)
    64  	cnt = 0
    65  	link.Loop(func(n *common.GenericDLNode[*testNode]) bool {
    66  		t.Logf("%d", node.GetPayload().val)
    67  		cnt++
    68  		return true
    69  	}, true)
    70  	assert.Equal(t, nodeCnt-1, cnt)
    71  }