github.com/bhojpur/cache@v0.0.4/pkg/memory/allocate_test.go (about)

     1  package memory
     2  
     3  // Copyright (c) 2018 Bhojpur Consulting Private Limited, India. All rights reserved.
     4  
     5  // Permission is hereby granted, free of charge, to any person obtaining a copy
     6  // of this software and associated documentation files (the "Software"), to deal
     7  // in the Software without restriction, including without limitation the rights
     8  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     9  // copies of the Software, and to permit persons to whom the Software is
    10  // furnished to do so, subject to the following conditions:
    11  
    12  // The above copyright notice and this permission notice shall be included in
    13  // all copies or substantial portions of the Software.
    14  
    15  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    16  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    17  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    18  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    19  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    20  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    21  // THE SOFTWARE.
    22  
    23  import (
    24  	"testing"
    25  )
    26  
    27  func TestTx_allocatePageStats(t *testing.T) {
    28  	f := newTestFreelist()
    29  	ids := []pgid{2, 3}
    30  	f.readIDs(ids)
    31  
    32  	tx := &Tx{
    33  		db: &DB{
    34  			freelist: f,
    35  			pageSize: defaultPageSize,
    36  		},
    37  		meta:  &meta{},
    38  		pages: make(map[pgid]*page),
    39  	}
    40  
    41  	prePageCnt := tx.Stats().PageCount
    42  	allocateCnt := f.free_count()
    43  
    44  	if _, err := tx.allocate(allocateCnt); err != nil {
    45  		t.Fatal(err)
    46  	}
    47  
    48  	if tx.Stats().PageCount != prePageCnt+allocateCnt {
    49  		t.Errorf("Allocated %d but got %d page in stats", allocateCnt, tx.Stats().PageCount)
    50  	}
    51  }