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|
# frozen_string_literal: true
begin
require "socket"
require "test/unit"
rescue LoadError
end
class TestSocket_TCPSocket < Test::Unit::TestCase
def test_inspect
TCPServer.open("localhost", 0) {|server|
assert_match(/AF_INET/, server.inspect)
TCPSocket.open("localhost", server.addr[1]) {|client|
assert_match(/AF_INET/, client.inspect)
}
}
end
def test_initialize_failure
# These addresses are chosen from TEST-NET-1, TEST-NET-2, and TEST-NET-3.
# [RFC 5737]
# They are chosen because probably they are not used as a host address.
# Anyway the addresses are used for bind() and should be failed.
# So no packets should be generated.
test_ip_addresses = [
'192.0.2.1', '192.0.2.42', # TEST-NET-1
'198.51.100.1', '198.51.100.42', # TEST-NET-2
'203.0.113.1', '203.0.113.42', # TEST-NET-3
]
begin
list = Socket.ip_address_list
rescue NotImplementedError
return
end
test_ip_addresses -= list.reject {|ai| !ai.ipv4? }.map {|ai| ai.ip_address }
if test_ip_addresses.empty?
return
end
client_addr = test_ip_addresses.first
client_port = 8000
server_addr = '127.0.0.1'
server_port = 80
begin
# Since client_addr is not an IP address of this host,
# bind() in TCPSocket.new should fail as EADDRNOTAVAIL.
t = TCPSocket.new(server_addr, server_port, client_addr, client_port)
flunk "expected SystemCallError"
rescue SystemCallError => e
assert_match "for \"#{client_addr}\" port #{client_port}", e.message
end
ensure
t.close if t && !t.closed?
end
def test_recvfrom
TCPServer.open("localhost", 0) {|svr|
th = Thread.new {
c = svr.accept
c.write "foo"
c.close
}
addr = svr.addr
TCPSocket.open(addr[3], addr[1]) {|sock|
assert_equal(["foo", nil], sock.recvfrom(0x10000))
}
th.join
}
end
def test_encoding
TCPServer.open("localhost", 0) {|svr|
th = Thread.new {
c = svr.accept
c.write "foo\r\n"
c.close
}
addr = svr.addr
TCPSocket.open(addr[3], addr[1]) {|sock|
assert_equal(true, sock.binmode?)
s = sock.gets
assert_equal("foo\r\n", s)
assert_equal(Encoding.find("ASCII-8BIT"), s.encoding)
}
th.join
}
end
def test_accept_nonblock
TCPServer.open("localhost", 0) {|svr|
assert_raise(IO::WaitReadable) { svr.accept_nonblock }
assert_equal :wait_readable, svr.accept_nonblock(exception: false)
assert_raise(IO::WaitReadable) { svr.accept_nonblock(exception: true) }
}
end
end if defined?(TCPSocket)
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