github.com/cockroachdb/pebble@v0.0.0-20231214172447-ab4952c5f87b/cmd/pebble/replay_test.go (about)

     1  // Copyright 2023 The LevelDB-Go and Pebble Authors. All rights reserved. Use
     2  // of this source code is governed by a BSD-style license that can be found in
     3  // the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"testing"
    10  
    11  	"github.com/cockroachdb/pebble"
    12  	"github.com/cockroachdb/pebble/internal/cache"
    13  	"github.com/stretchr/testify/require"
    14  )
    15  
    16  func TestParseOptionsStr(t *testing.T) {
    17  	type testCase struct {
    18  		c       replayConfig
    19  		options *pebble.Options
    20  	}
    21  
    22  	testCases := []testCase{
    23  		{
    24  			c:       replayConfig{optionsString: `[Options] max_concurrent_compactions=9`},
    25  			options: &pebble.Options{MaxConcurrentCompactions: func() int { return 9 }},
    26  		},
    27  		{
    28  			c:       replayConfig{optionsString: `[Options] bytes_per_sync=90000`},
    29  			options: &pebble.Options{BytesPerSync: 90000},
    30  		},
    31  		{
    32  			c:       replayConfig{optionsString: fmt.Sprintf(`[Options] cache_size=%d`, 16<<20 /* 16MB */)},
    33  			options: &pebble.Options{Cache: cache.New(16 << 20 /* 16 MB */)},
    34  		},
    35  		{
    36  			c: replayConfig{
    37  				maxCacheSize:  16 << 20, /* 16 MB */
    38  				optionsString: fmt.Sprintf(`[Options] cache_size=%d`, int64(10<<30 /* 10 GB */)),
    39  			},
    40  			options: &pebble.Options{Cache: cache.New(16 << 20 /* 16 MB */)},
    41  		},
    42  		{
    43  			c: replayConfig{optionsString: `[Options] [Level "0"] target_file_size=222`},
    44  			options: &pebble.Options{Levels: []pebble.LevelOptions{
    45  				{TargetFileSize: 222},
    46  			}},
    47  		},
    48  		{
    49  			c: replayConfig{optionsString: `[Options] lbase_max_bytes=10  max_open_files=20  [Level "0"] target_file_size=30 [Level "1"] index_block_size=40`},
    50  			options: &pebble.Options{
    51  				LBaseMaxBytes: 10,
    52  				MaxOpenFiles:  20,
    53  				Levels: []pebble.LevelOptions{
    54  					{TargetFileSize: 30},
    55  					{IndexBlockSize: 40},
    56  				},
    57  			},
    58  		},
    59  	}
    60  
    61  	for _, tc := range testCases {
    62  		o := new(pebble.Options)
    63  		require.NoError(t, tc.c.parseCustomOptions(tc.c.optionsString, o))
    64  		o.EnsureDefaults()
    65  		got := o.String()
    66  
    67  		tc.options.EnsureDefaults()
    68  		want := tc.options.String()
    69  		require.Equal(t, want, got)
    70  		if o.Cache != nil {
    71  			o.Cache.Unref()
    72  		}
    73  		if tc.options.Cache != nil {
    74  			tc.options.Cache.Unref()
    75  		}
    76  	}
    77  }