syncthing/lib/protocol/common_test.go

// Copyright (C) 2014 The Protocol Authors.

package protocol

import (
	"io"
	"time"
)

type TestModel struct {
	data      []byte
	folder    string
	name      string
	offset    int64
	size      int
	hash      []byte
	flags     uint32
	options   []Option
	closedCh  chan struct{}
	closedErr error
}

func newTestModel() *TestModel {
	return &TestModel{
		closedCh: make(chan struct{}),
	}
}

func (t *TestModel) Index(deviceID DeviceID, folder string, files []FileInfo, flags uint32, options []Option) {
}

func (t *TestModel) IndexUpdate(deviceID DeviceID, folder string, files []FileInfo, flags uint32, options []Option) {
}

func (t *TestModel) Request(deviceID DeviceID, folder, name string, offset int64, hash []byte, flags uint32, options []Option, buf []byte) error {
	t.folder = folder
	t.name = name
	t.offset = offset
	t.size = len(buf)
	t.hash = hash
	t.flags = flags
	t.options = options
	copy(buf, t.data)
	return nil
}

func (t *TestModel) Close(deviceID DeviceID, err error) {
	t.closedErr = err
	close(t.closedCh)
}

func (t *TestModel) ClusterConfig(deviceID DeviceID, config ClusterConfigMessage) {
}

func (t *TestModel) closedError() error {
	select {
	case <-t.closedCh:
		return t.closedErr
	case <-time.After(1 * time.Second):
		return nil // Timeout
	}
}

type ErrPipe struct {
	io.PipeWriter
	written int
	max     int
	err     error
	closed  bool
}

func (e *ErrPipe) Write(data []byte) (int, error) {
	if e.closed {
		return 0, e.err
	}
	if e.written+len(data) > e.max {
		n, _ := e.PipeWriter.Write(data[:e.max-e.written])
		e.PipeWriter.CloseWithError(e.err)
		e.closed = true
		return n, e.err
	}
	return e.PipeWriter.Write(data)
}