github.com/jimmyx0x/go-ethereum@v1.10.28/core/rawdb/freezer_resettable_test.go (about)

     1  // Copyright 2022 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package rawdb
    18  
    19  import (
    20  	"bytes"
    21  	"os"
    22  	"testing"
    23  
    24  	"github.com/ethereum/go-ethereum/ethdb"
    25  )
    26  
    27  func TestResetFreezer(t *testing.T) {
    28  	items := []struct {
    29  		id   uint64
    30  		blob []byte
    31  	}{
    32  		{0, bytes.Repeat([]byte{0}, 2048)},
    33  		{1, bytes.Repeat([]byte{1}, 2048)},
    34  		{2, bytes.Repeat([]byte{2}, 2048)},
    35  	}
    36  	f, _ := NewResettableFreezer(t.TempDir(), "", false, 2048, freezerTestTableDef)
    37  	defer f.Close()
    38  
    39  	f.ModifyAncients(func(op ethdb.AncientWriteOp) error {
    40  		for _, item := range items {
    41  			op.AppendRaw("test", item.id, item.blob)
    42  		}
    43  		return nil
    44  	})
    45  	for _, item := range items {
    46  		blob, _ := f.Ancient("test", item.id)
    47  		if !bytes.Equal(blob, item.blob) {
    48  			t.Fatal("Unexpected blob")
    49  		}
    50  	}
    51  
    52  	// Reset freezer
    53  	f.Reset()
    54  	count, _ := f.Ancients()
    55  	if count != 0 {
    56  		t.Fatal("Failed to reset freezer")
    57  	}
    58  	for _, item := range items {
    59  		blob, _ := f.Ancient("test", item.id)
    60  		if len(blob) != 0 {
    61  			t.Fatal("Unexpected blob")
    62  		}
    63  	}
    64  
    65  	// Fill the freezer
    66  	f.ModifyAncients(func(op ethdb.AncientWriteOp) error {
    67  		for _, item := range items {
    68  			op.AppendRaw("test", item.id, item.blob)
    69  		}
    70  		return nil
    71  	})
    72  	for _, item := range items {
    73  		blob, _ := f.Ancient("test", item.id)
    74  		if !bytes.Equal(blob, item.blob) {
    75  			t.Fatal("Unexpected blob")
    76  		}
    77  	}
    78  }
    79  
    80  func TestFreezerCleanup(t *testing.T) {
    81  	items := []struct {
    82  		id   uint64
    83  		blob []byte
    84  	}{
    85  		{0, bytes.Repeat([]byte{0}, 2048)},
    86  		{1, bytes.Repeat([]byte{1}, 2048)},
    87  		{2, bytes.Repeat([]byte{2}, 2048)},
    88  	}
    89  	datadir := t.TempDir()
    90  	f, _ := NewResettableFreezer(datadir, "", false, 2048, freezerTestTableDef)
    91  	f.ModifyAncients(func(op ethdb.AncientWriteOp) error {
    92  		for _, item := range items {
    93  			op.AppendRaw("test", item.id, item.blob)
    94  		}
    95  		return nil
    96  	})
    97  	f.Close()
    98  	os.Rename(datadir, tmpName(datadir))
    99  
   100  	// Open the freezer again, trigger cleanup operation
   101  	f, _ = NewResettableFreezer(datadir, "", false, 2048, freezerTestTableDef)
   102  	f.Close()
   103  
   104  	if _, err := os.Lstat(tmpName(datadir)); !os.IsNotExist(err) {
   105  		t.Fatal("Failed to cleanup leftover directory")
   106  	}
   107  }