github.com/m3db/m3@v1.5.0/src/dbnode/persist/fs/snapshot_metadata_read_write_test.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package fs
    22  
    23  import (
    24  	"os"
    25  	"path/filepath"
    26  	"testing"
    27  
    28  	"github.com/m3db/m3/src/dbnode/persist"
    29  
    30  	"github.com/pborman/uuid"
    31  	"github.com/stretchr/testify/require"
    32  )
    33  
    34  func TestSnapshotMetadataWriteAndRead(t *testing.T) {
    35  	var (
    36  		dir            = createTempDir(t)
    37  		filePathPrefix = filepath.Join(dir, "")
    38  		opts           = testDefaultOpts.
    39  				SetFilePathPrefix(filePathPrefix)
    40  		commitlogIdentifier = persist.CommitLogFile{
    41  			FilePath: "some_path",
    42  			Index:    1,
    43  		}
    44  		numMetadataFiles = 10
    45  	)
    46  	defer func() {
    47  		os.RemoveAll(dir)
    48  	}()
    49  
    50  	var (
    51  		reader = NewSnapshotMetadataReader(opts)
    52  		writer = NewSnapshotMetadataWriter(opts)
    53  	)
    54  	for i := 0; i < numMetadataFiles; i++ {
    55  		snapshotUUID := uuid.Parse("6645a373-bf82-42e7-84a6-f8452b137549")
    56  		require.NotNil(t, snapshotUUID)
    57  
    58  		var (
    59  			snapshotMetadataIdentifier = SnapshotMetadataIdentifier{
    60  				Index: int64(i),
    61  				UUID:  snapshotUUID,
    62  			}
    63  		)
    64  
    65  		err := writer.Write(SnapshotMetadataWriteArgs{
    66  			ID:                  snapshotMetadataIdentifier,
    67  			CommitlogIdentifier: commitlogIdentifier,
    68  		})
    69  		require.NoError(t, err)
    70  
    71  		snapshotMetadata, err := reader.Read(snapshotMetadataIdentifier)
    72  		require.NoError(t, err)
    73  
    74  		require.Equal(t, SnapshotMetadata{
    75  			ID:                  snapshotMetadataIdentifier,
    76  			CommitlogIdentifier: commitlogIdentifier,
    77  			MetadataFilePath: snapshotMetadataFilePathFromIdentifier(
    78  				filePathPrefix, snapshotMetadataIdentifier),
    79  			CheckpointFilePath: snapshotMetadataCheckpointFilePathFromIdentifier(
    80  				filePathPrefix, snapshotMetadataIdentifier),
    81  		}, snapshotMetadata)
    82  	}
    83  }