require 'net/ftp'
require File.expand_path('../fixtures/server', __FILE__)

describe "Net::FTP#sendcmd" do
  before(:each) do
    @server = NetFTPSpecs::DummyFTP.new
    @server.serve_once

    @ftp = Net::FTP.new
    @ftp.connect("localhost", 9921)
  end

  after(:each) do
    @ftp.quit rescue nil
    @ftp.close
    @server.stop
  end

  it "sends the passed command to the server" do
    @ftp.sendcmd("HELP")
    @ftp.last_response.should == "211 System status, or system help reply. (HELP)\n"
  end

  it "returns the server's response" do
    @ftp.sendcmd("HELP").should == "211 System status, or system help reply. (HELP)\n"
  end

  it "raises no error when the response code is 1xx, 2xx or 3xx" do
    @server.should_receive(:help).and_respond("120 Service ready in nnn minutes.")
    lambda { @ftp.sendcmd("HELP") }.should_not raise_error

    @server.should_receive(:help).and_respond("200 Command okay.")
    lambda { @ftp.sendcmd("HELP") }.should_not raise_error

    @server.should_receive(:help).and_respond("350 Requested file action pending further information.")
    lambda { @ftp.sendcmd("HELP") }.should_not raise_error
  end

  it "raises a Net::FTPTempError when the response code is 4xx" do
    @server.should_receive(:help).and_respond("421 Service not available, closing control connection.")
    lambda { @ftp.sendcmd("HELP") }.should raise_error(Net::FTPTempError)
  end

  it "raises a Net::FTPPermError when the response code is 5xx" do
    @server.should_receive(:help).and_respond("500 Syntax error, command unrecognized.")
    lambda { @ftp.sendcmd("HELP") }.should raise_error(Net::FTPPermError)
  end

  it "raises a Net::FTPProtoError when the response code is not between 1xx-5xx" do
    @server.should_receive(:help).and_respond("999 Invalid response.")
    lambda { @ftp.sendcmd("HELP") }.should raise_error(Net::FTPProtoError)
  end
end
