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metadata_store.go
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/
metadata_store.go
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package fileset
import (
"context"
"fmt"
"testing"
"github.com/pachyderm/pachyderm/v2/src/internal/dbutil"
"github.com/pachyderm/pachyderm/v2/src/internal/pachsql"
"github.com/pachyderm/pachyderm/v2/src/internal/require"
)
var (
// ErrFileSetExists path already exists
ErrFileSetExists = fmt.Errorf("path already exists")
// ErrFileSetNotExists path does not exist
ErrFileSetNotExists = fmt.Errorf("path does not exist")
// ErrNoTTLSet no ttl set on path
ErrNoTTLSet = fmt.Errorf("no ttl set on path")
)
// MetadataStore stores filesets. A fileset is a path -> index relationship
// All filesets exist in the same keyspace and can be merged by prefix
type MetadataStore interface {
DB() *pachsql.DB
SetTx(tx *pachsql.Tx, id ID, md *Metadata) error
Get(ctx context.Context, id ID) (*Metadata, error)
GetTx(tx *pachsql.Tx, id ID) (*Metadata, error)
DeleteTx(tx *pachsql.Tx, id ID) error
Exists(ctx context.Context, id ID) (bool, error)
}
// StoreTestSuite is a suite of tests for a Store.
func StoreTestSuite(t *testing.T, newStore func(t testing.TB) MetadataStore) {
ctx := context.Background()
t.Run("SetGet", func(t *testing.T) {
x := newStore(t)
md := &Metadata{}
testID := newID()
require.NoError(t, setMetadata(ctx, x, testID, md))
actual, err := x.Get(ctx, testID)
require.NoError(t, err)
require.Equal(t, md, actual)
})
t.Run("Delete", func(t *testing.T) {
x := newStore(t)
require.NoError(t, deleteMetadata(ctx, x, newID()))
md := &Metadata{}
testID := newID()
require.NoError(t, setMetadata(ctx, x, testID, md))
require.NoError(t, deleteMetadata(ctx, x, testID))
_, err := x.Get(ctx, testID)
require.ErrorIs(t, err, ErrFileSetNotExists)
})
}
func setMetadata(ctx context.Context, mds MetadataStore, id ID, md *Metadata) error {
return dbutil.WithTx(ctx, mds.DB(), func(tx *pachsql.Tx) error {
return mds.SetTx(tx, id, md)
})
}
func deleteMetadata(ctx context.Context, mds MetadataStore, id ID) error {
return dbutil.WithTx(ctx, mds.DB(), func(tx *pachsql.Tx) error {
return mds.DeleteTx(tx, id)
})
}