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FakeFtp

This is a gem that allows you to test FTP implementations in ruby. It is a minimal single-client FTP server that can be bound to any arbitrary port on localhost.

Why?

We want to ensure that our code works, in a way that is agnostic to the implementation used (unlike with stubs or mocks).

How

FakeFtp is a simple FTP server that fakes out enough of the protocol to get us by, allowing us to test that files get to their intended destination rather than testing how our code does so.

Usage

To test passive upload:

require 'fake_ftp'
require 'net/ftp'

server = FakeFtp::Server.new(21212, 21213)
## 21212 is the control port, which is used by FTP for the primary connection
## 21213 is the data port, used in FTP passive mode to send file contents
server.start

ftp = Net::FTP.new
ftp.connect('127.0.0.1', 21212)
ftp.login('user', 'password')
ftp.passive = true
ftp.put('some_file.txt')
ftp.close

server.files.should include('some_file.txt')
server.file('some_file.txt').bytes.should == 25
server.file('some_file.txt').should be_passive
server.file('some_file.txt').should_not be_active

server.stop

To test active upload:

server = FakeFtp::Server.new(21212)
## 21212 is the control port, which is used by FTP for the primary connection
## 21213 is the data port, used in FTP passive mode to send file contents
server.start

ftp = Net::FTP.new
ftp.connect('127.0.0.1', 21212)
ftp.login('user', 'password')
ftp.passive = false
ftp.put('some_file.txt')
ftp.close

server.files.should include('some_file.txt')
server.file('some_file.txt').bytes.should == 25
server.file('some_file.txt').should be_active
server.file('some_file.txt').should_not be_passive

server.stop

Note that many FTP clients default to active, unless specified otherwise.

References

Contributors

Build Status

Build status

License

The MIT License

Copyright (c) 2011 Eric Saxby

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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A fake FTP server for use with RSpec

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