Files
kopia/internal/cache/content_cache_data_test.go
Julio Lopez d91a5a8f94 chore(general): enable forcetypeassert linter (#4624)
- enable `forcetypeassert` linter in non-test files
- add `//nolint` annotations
- add `testutil.EnsureType` helper for type assertions
- enable `forcetypeassert` linter in test files
2025-05-31 23:17:38 -07:00

93 lines
3.2 KiB
Go

package cache_test
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/kopia/kopia/internal/blobtesting"
"github.com/kopia/kopia/internal/cache"
"github.com/kopia/kopia/internal/gather"
"github.com/kopia/kopia/internal/testlogging"
"github.com/kopia/kopia/internal/testutil"
"github.com/kopia/kopia/repo/blob"
)
func TestContentCacheForData(t *testing.T) {
ctx := testlogging.Context(t)
underlyingData := blobtesting.DataMap{}
underlying := blobtesting.NewMapStorage(underlyingData, nil, nil)
cacheData := blobtesting.DataMap{}
cacheStorage := testutil.EnsureType[cache.Storage](t, blobtesting.NewMapStorage(cacheData, nil, nil))
dataCache, err := cache.NewContentCache(ctx, underlying, cache.Options{
Storage: cacheStorage,
HMACSecret: []byte{1, 2, 3, 4},
Sweep: cache.SweepSettings{
MaxSizeBytes: 150,
},
}, nil)
require.NoError(t, err)
var tmp gather.WriteBuffer
defer tmp.Close()
// get something we don't have in the underlying storage
require.ErrorIs(t, dataCache.GetContent(ctx, "key1", "blob1", 0, 3, &tmp), blob.ErrBlobNotFound)
require.NoError(t, underlying.PutBlob(ctx, "blob1", gather.FromSlice([]byte{1, 2, 3, 4, 5, 6}), blob.PutOptions{}))
require.NoError(t, dataCache.GetContent(ctx, "xkey1", "blob1", 0, 3, &tmp))
require.Equal(t, []byte{1, 2, 3}, tmp.ToByteSlice())
require.NoError(t, dataCache.GetContent(ctx, "xkey2", "blob1", 3, 3, &tmp))
require.Equal(t, []byte{4, 5, 6}, tmp.ToByteSlice())
// cache has 2 entries, one for each section of the blob.
require.Len(t, cacheData, 2)
// keys are mangled so that last character (which is always 0..9 a..f) is the first.
require.Contains(t, cacheData, blob.ID("key1x"))
require.Contains(t, cacheData, blob.ID("key2x"))
dataCache.Close(ctx)
// get slice with cache miss
require.NoError(t, underlying.PutBlob(ctx, "blob2", gather.FromSlice([]byte{1, 2, 3, 4, 5, 6}), blob.PutOptions{}))
require.NoError(t, dataCache.GetContent(ctx, "aaa1", "blob2", 3, 3, &tmp))
require.Equal(t, []byte{4, 5, 6}, tmp.ToByteSlice())
// even-length content IDs are not mangled
require.Len(t, cacheData, 3)
require.Contains(t, cacheData, blob.ID("aaa1"))
require.NoError(t, underlying.PutBlob(ctx, "pblob3", gather.FromSlice([]byte{1, 2, 3, 4, 5, 6}), blob.PutOptions{}))
dataCache.PrefetchBlob(ctx, "pblob3")
require.NoError(t, underlying.DeleteBlob(ctx, "pblob3"))
// make sure blob ID is properly mangled
require.Contains(t, cacheData, blob.ID("blob3p"))
require.NoError(t, dataCache.GetContent(ctx, "aaa3", "pblob3", 2, 4, &tmp))
require.Equal(t, []byte{3, 4, 5, 6}, tmp.ToByteSlice())
}
func TestContentCacheForData_Passthrough(t *testing.T) {
underlyingData := blobtesting.DataMap{}
underlying := blobtesting.NewMapStorage(underlyingData, nil, nil)
ctx := testlogging.Context(t)
dataCache, err := cache.NewContentCache(ctx, underlying, cache.Options{}, nil)
require.NoError(t, err)
require.NoError(t, underlying.PutBlob(ctx, "blob1", gather.FromSlice([]byte{1, 2, 3, 4, 5, 6}), blob.PutOptions{}))
var tmp gather.WriteBuffer
defer tmp.Close()
require.NoError(t, dataCache.GetContent(ctx, "key1", "blob1", 0, 5, &tmp))
require.Equal(t, []byte{1, 2, 3, 4, 5}, tmp.ToByteSlice())
}