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# Author:: Krzysztof Wilczynski (<kwilczynski@chef.io>)
#
# Copyright:: Copyright (c) 2014 Chef Software, Inc.
#
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require 'spec_helper'
require 'ohai/util/socket_helper'
class SocketHelperMock
include Ohai::Util::SocketHelper
end
describe 'Ohai::Util::SocketHelper' do
let(:socket_helper) { SocketHelperMock.new }
before(:each) do
@socket = double('TCPSocket')
allow(@socket).to receive(:close).and_return(nil)
allow(Socket).to receive(:do_not_reverse_lookup).and_call_original
allow(TCPSocket).to receive(:new).and_return(@socket)
end
describe 'when remote node is accessible' do
it 'should return true when connection is accepted' do
expect(Socket).to receive(:do_not_reverse_lookup=).once
expect(TCPSocket).to receive(:new).with('chef.io', 42)
expect(@socket).to receive(:close).once
expect(socket_helper.tcp_port_open?('chef.io', 42)).to be true
end
end
describe 'when remote node is not accessible' do
it 'should return false when connection is refused' do
allow(TCPSocket).to receive(:new).with('getchef.com', 80).and_raise(Errno::ECONNREFUSED)
expect(Socket).to receive(:do_not_reverse_lookup=).once
expect(TCPSocket).to receive(:new).with('getchef.com', 80)
expect(@socket).not_to receive(:close)
expect(socket_helper.tcp_port_open?('getchef.com', 80)).to be false
end
it 'should return false when connection cannot be established' do
allow(TCPSocket).to receive(:new).with('opscode.com', 443).and_raise(Errno::EHOSTUNREACH)
expect(Socket).to receive(:do_not_reverse_lookup=).once
expect(TCPSocket).to receive(:new).with('opscode.com', 443)
expect(@socket).not_to receive(:close)
expect(socket_helper.tcp_port_open?('opscode.com', 443)).to be false
end
it 'should return false when it cannot resolve host name' do
# The message can be (depending on version of Ruby and underlying libraries):
# SocketError: getaddrinfo: nodename nor servname provided, or not known
# SocketError: getaddrinfo: Name or service not known
# SocketError: getaddrinfo: No such host is known.
# SocketError: getaddrinfo: Temporary failure in name resolution
allow(TCPSocket).to receive(:new).with('acme.com', 8080).and_raise(SocketError, 'getaddrinfo: Name or service not known')
expect(Socket).to receive(:do_not_reverse_lookup=).once
expect(TCPSocket).to receive(:new).with('acme.com', 8080)
expect(@socket).not_to receive(:close)
expect(socket_helper.tcp_port_open?('acme.com', 8080)).to be false
end
it 'should raise unknown SocketError exception' do
allow(TCPSocket).to receive(:new).with('NCC-1701-D', 40759).and_raise(SocketError, 'the plasma conduit time-matter field appears to be removed')
expect(Socket).to receive(:do_not_reverse_lookup=).once
expect(TCPSocket).to receive(:new).with('NCC-1701-D', 40759)
expect(@socket).not_to receive(:close)
expect {
socket_helper.tcp_port_open?('NCC-1701-D', 40759)
}.to raise_error(SocketError) {|e|
expect(e.message).to eq 'the plasma conduit time-matter field appears to be removed'
}
end
it 'should return false when a timeout occurs' do
allow(Timeout).to receive(:timeout).with(3).and_raise(Timeout::Error)
expect(Socket).not_to receive(:do_not_reverse_lookup=)
expect(TCPSocket).not_to receive(:new).with('slow.net', 22)
expect(@socket).not_to receive(:close)
expect(socket_helper.tcp_port_open?('slow.net', 22, 3)).to be false
end
end
end
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