mock

type ReadCloser struct {
	CloseFunc func() error
	ReadFunc  func([]byte) (int, error)
}

type ReplicaClient struct {
	GenerationsFunc       func(ctx context.Context) ([]string, error)
	DeleteGenerationFunc  func(ctx context.Context, generation string) error
	SnapshotsFunc         func(ctx context.Context, generation string) (litestream.SnapshotIterator, error)
	WriteSnapshotFunc     func(ctx context.Context, generation string, index int, r io.Reader) (litestream.SnapshotInfo, error)
	DeleteSnapshotFunc    func(ctx context.Context, generation string, index int) error
	SnapshotReaderFunc    func(ctx context.Context, generation string, index int) (io.ReadCloser, error)
	WALSegmentsFunc       func(ctx context.Context, generation string) (litestream.WALSegmentIterator, error)
	WriteWALSegmentFunc   func(ctx context.Context, pos litestream.Pos, r io.Reader) (litestream.WALSegmentInfo, error)
	DeleteWALSegmentsFunc func(ctx context.Context, a []litestream.Pos) error
	WALSegmentReaderFunc  func(ctx context.Context, pos litestream.Pos) (io.ReadCloser, error)
}

type SnapshotIterator struct {
	CloseFunc    func() error
	NextFunc     func() bool
	ErrFunc      func() error
	SnapshotFunc func() litestream.SnapshotInfo
}

type WALSegmentIterator struct {
	CloseFunc      func() error
	NextFunc       func() bool
	ErrFunc        func() error
	WALSegmentFunc func() litestream.WALSegmentInfo
}