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require_relative '../spec_helper'
require_relative '../fixtures/classes'
describe "Socket.getnameinfo" do
before :each do
@reverse_lookup = BasicSocket.do_not_reverse_lookup
BasicSocket.do_not_reverse_lookup = true
end
after :each do
BasicSocket.do_not_reverse_lookup = @reverse_lookup
end
it "gets the name information and don't resolve it" do
sockaddr = Socket.sockaddr_in 3333, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr, Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "3333"]
end
def should_be_valid_dns_name(name)
# http://stackoverflow.com/questions/106179/regular-expression-to-match-hostname-or-ip-address
# ftp://ftp.rfc-editor.org/in-notes/rfc3696.txt
# http://domainkeys.sourceforge.net/underscore.html
valid_dns = /^(([a-zA-Z0-9_]|[a-zA-Z0-9_][a-zA-Z0-9\-_]*[a-zA-Z0-9_])\.)*([A-Za-z_]|[A-Za-z_][A-Za-z0-9\-_]*[A-Za-z0-9_])\.?$/
name.should =~ valid_dns
end
it "gets the name information and resolve the host" do
sockaddr = Socket.sockaddr_in 3333, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr, Socket::NI_NUMERICSERV)
should_be_valid_dns_name(name_info[0])
name_info[1].should == 3333.to_s
end
it "gets the name information and resolves the service" do
sockaddr = Socket.sockaddr_in 9, '127.0.0.1'
name_info = Socket.getnameinfo(sockaddr)
name_info.size.should == 2
should_be_valid_dns_name(name_info[0])
# see http://www.iana.org/assignments/port-numbers
name_info[1].should == 'discard'
end
it "gets a 3-element array and doesn't resolve hostname" do
name_info = Socket.getnameinfo(["AF_INET", 3333, '127.0.0.1'], Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "3333"]
end
it "gets a 3-element array and resolves the service" do
name_info = Socket.getnameinfo ["AF_INET", 9, '127.0.0.1']
name_info[1].should == 'discard'
end
it "gets a 4-element array and doesn't resolve hostname" do
name_info = Socket.getnameinfo(["AF_INET", 3333, 'foo', '127.0.0.1'], Socket::NI_NUMERICHOST | Socket::NI_NUMERICSERV)
name_info.should == ['127.0.0.1', "3333"]
end
it "gets a 4-element array and resolves the service" do
name_info = Socket.getnameinfo ["AF_INET", 9, 'foo', '127.0.0.1']
name_info[1].should == 'discard'
end
end
describe 'Socket.getnameinfo' do
describe 'using a String as the first argument' do
before do
@addr = Socket.sockaddr_in(21, '127.0.0.1')
end
it 'raises SocketError or TypeError when using an invalid String' do
-> { Socket.getnameinfo('cats') }.should raise_error(Exception) { |e|
[SocketError, TypeError].should include(e.class)
}
end
describe 'without custom flags' do
it 'returns an Array containing the hostname and service name' do
Socket.getnameinfo(@addr).should == [SocketSpecs.hostname_reverse_lookup, 'ftp']
end
end
describe 'using NI_NUMERICHOST as the flag' do
it 'returns an Array containing the numeric hostname and service name' do
array = Socket.getnameinfo(@addr, Socket::NI_NUMERICHOST)
%w{127.0.0.1 ::1}.include?(array[0]).should == true
array[1].should == 'ftp'
end
end
end
SocketSpecs.each_ip_protocol do |family, ip_address, family_name|
before do
@hostname = SocketSpecs.hostname_reverse_lookup(ip_address)
end
describe 'using a 3 element Array as the first argument' do
before do
@addr = [family_name, 21, @hostname]
end
it 'raises ArgumentError when using an invalid Array' do
-> { Socket.getnameinfo([family_name]) }.should raise_error(ArgumentError)
end
platform_is_not :windows do
describe 'using NI_NUMERICHOST as the flag' do
it 'returns an Array containing the numeric hostname and service name' do
Socket.getnameinfo(@addr, Socket::NI_NUMERICHOST).should == [ip_address, 'ftp']
end
end
end
end
describe 'using a 4 element Array as the first argument' do
before do
@addr = [family_name, 21, ip_address, ip_address]
end
describe 'without custom flags' do
it 'returns an Array containing the hostname and service name' do
array = Socket.getnameinfo(@addr)
array.should be_an_instance_of(Array)
array[0].should == @hostname
array[1].should == 'ftp'
end
it 'uses the 3rd value as the hostname if the 4th is not present' do
addr = [family_name, 21, ip_address, nil]
array = Socket.getnameinfo(addr)
array.should be_an_instance_of(Array)
array[0].should == @hostname
array[1].should == 'ftp'
end
end
describe 'using NI_NUMERICHOST as the flag' do
it 'returns an Array containing the numeric hostname and service name' do
Socket.getnameinfo(@addr, Socket::NI_NUMERICHOST).should == [ip_address, 'ftp']
end
end
end
end
end
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