reflector.go/store/disk_test.go
Alex Grintsvayg e70b9af3e4
dont overallocate ram when reading blobs from disk
ReadFile checks the file size and allocates a bit more space than we
expect we'll need. ReadAll uses Go's standard resizing algo, which
doubles the underlying array each time you hit the end. So ReadAll
ends up allocating 4MB for a full blob, while ReadFile allocates
slightly over 2MB.
2020-11-27 16:18:26 -05:00

45 lines
1 KiB
Go

package store
import (
"io/ioutil"
"os"
"path"
"path/filepath"
"testing"
"github.com/lbryio/lbry.go/v2/extras/errors"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDiskStore_Get(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "reflector_test_*")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
d := NewDiskStore(tmpDir, 2)
hash := "1234567890"
data := []byte("oyuntyausntoyaunpdoyruoyduanrstjwfjyuwf")
expectedPath := path.Join(tmpDir, hash[:2], hash)
err = os.MkdirAll(filepath.Dir(expectedPath), os.ModePerm)
require.NoError(t, err)
err = ioutil.WriteFile(expectedPath, data, os.ModePerm)
require.NoError(t, err)
blob, err := d.Get(hash)
assert.NoError(t, err)
assert.EqualValues(t, data, blob)
}
func TestDiskStore_GetNonexistentBlob(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "reflector_test_*")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
d := NewDiskStore(tmpDir, 2)
blob, err := d.Get("nonexistent")
assert.Nil(t, blob)
assert.True(t, errors.Is(err, ErrBlobNotFound))
}