github.com/zuoyebang/bitalosdb@v1.1.1-0.20240516111551-79a8c4d8ce20/bitree/bdb/allocate_test.go (about)

     1  // Copyright 2021 The Bitalosdb author(hustxrb@163.com) and other contributors.
     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 bdb
    16  
    17  import (
    18  	"fmt"
    19  	"testing"
    20  )
    21  
    22  func TestTx_allocatePageStats(t *testing.T) {
    23  	f := newTestFreelist()
    24  	ids := []pgid{2, 3}
    25  	f.readIDs(ids)
    26  
    27  	tx := &Tx{
    28  		db: &DB{
    29  			freelist: f,
    30  			pageSize: defaultPageSize,
    31  		},
    32  		meta:  &meta{},
    33  		pages: make(map[pgid]*page),
    34  	}
    35  
    36  	prePageTotal := tx.Stats().PageCount
    37  	allocateCnt := f.free_count()
    38  	fmt.Println(allocateCnt)
    39  
    40  	if _, _, err := tx.allocate(allocateCnt); err != nil {
    41  		t.Fatal(err)
    42  	}
    43  
    44  	if tx.Stats().PageCount != prePageTotal+allocateCnt {
    45  		t.Errorf("Allocated %d but got %d page in stats", allocateCnt, tx.Stats().PageCount)
    46  	}
    47  }