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|
# frozen_string_literal: true
require_relative '../helper'
describe 'Network' do
MemcachedManager.supported_protocols.each do |p|
describe "using the #{p} protocol" do
describe 'assuming a bad network' do
it 'handle no server available' do
dc = Dalli::Client.new 'localhost:19333'
assert_raises Dalli::RingError, message: 'No server available' do
dc.get 'foo'
end
end
describe 'with a fake server' do
it 'handle connection reset' do
memcached_mock(->(sock) { sock.close }) do
dc = Dalli::Client.new('localhost:19123')
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
end
it 'handle connection reset with unix socket' do
socket_path = MemcachedMock::UNIX_SOCKET_PATH
memcached_mock(->(sock) { sock.close }, :start_unix, socket_path) do
dc = Dalli::Client.new(socket_path)
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
end
it 'handle malformed response' do
memcached_mock(->(sock) { sock.write('123') }) do
dc = Dalli::Client.new('localhost:19123')
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
end
it 'handle socket timeouts' do
dc = Dalli::Client.new('localhost:19123', socket_timeout: 0)
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
it 'handle connect timeouts' do
memcached_mock(lambda { |sock|
sleep(0.6)
sock.close
}, :delayed_start) do
dc = Dalli::Client.new('localhost:19123')
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
end
it 'handle read timeouts' do
memcached_mock(lambda { |sock|
sleep(0.6)
sock.write('giraffe')
}) do
dc = Dalli::Client.new('localhost:19123')
assert_raises Dalli::RingError, message: 'No server available' do
dc.get('abc')
end
end
end
end
it 'opens a standard TCP connection when ssl_context is not configured' do
memcached_persistent(p) do |dc|
server = dc.send(:ring).servers.first
sock = Dalli::Socket::TCP.open(server.hostname, server.port, server.options)
assert_instance_of Dalli::Socket::TCP, sock
dc.set('abc', 123)
assert_equal(123, dc.get('abc'))
end
end
it 'opens a SSL TCP connection when there is an SSL context set' do
memcached_ssl_persistent(p) do |dc|
server = dc.send(:ring).servers.first
sock = Dalli::Socket::TCP.open(server.hostname, server.port, server.options)
assert_instance_of Dalli::Socket::SSLSocket, sock
dc.set('abc', 123)
assert_equal(123, dc.get('abc'))
# Confirm that pipelined get works, since this depends on attributes on
# the socket
assert_equal({ 'abc' => 123 }, dc.get_multi(['abc']))
end
end
it 'allow TCP connections to be configured for keepalive' do
memcached_persistent(p) do |_, port|
dc = Dalli::Client.new("localhost:#{port}", keepalive: true)
dc.set(:a, 1)
ring = dc.send(:ring)
server = ring.servers.first
socket = server.sock
optval = socket.getsockopt(Socket::SOL_SOCKET, Socket::SO_KEEPALIVE)
optval = optval.unpack 'i'
refute_equal(optval[0], 0)
end
end
end
it 'handles timeout error during pipelined get' do
with_nil_logger do
memcached(p, 19_191) do |dc|
dc.send(:ring).server_for_key('abc').sock.stub(:write, proc { raise Timeout::Error }) do
assert_empty dc.get_multi(['abc'])
end
end
end
end
it 'handles asynchronous Thread#raise' do
with_nil_logger do
memcached(p, 19_191) do |dc|
10.times do |i|
thread = Thread.new do
loop do
assert_instance_of Integer, dc.set("key:#{i}", i.to_s)
end
rescue RuntimeError
nil # expected
end
thread.join(rand(0.01..0.2))
thread.raise('Test Timeout Error')
joined_thread = thread.join(1)
refute_nil joined_thread
refute_predicate joined_thread, :alive?
assert_equal i.to_s, dc.get("key:#{i}")
end
end
end
end
it 'handles asynchronous Thread#raise during pipelined get' do
with_nil_logger do
memcached(p, 19_191) do |dc|
10.times do |i|
expected_response = 100.times.to_h { |x| ["key:#{i}:#{x}", x.to_s] }
expected_response.each do |key, val|
dc.set(key, val)
end
thread = Thread.new do
loop do
assert_equal expected_response, dc.get_multi(expected_response.keys)
end
rescue RuntimeError
nil # expected
end
thread.join(rand(0.01..0.2))
thread.raise('Test Timeout Error')
joined_thread = thread.join(1)
refute_nil joined_thread
refute_predicate joined_thread, :alive?
assert_equal expected_response, dc.get_multi(expected_response.keys)
end
end
end
end
it 'handles asynchronous Thread#kill' do
with_nil_logger do
memcached(p, 19_191) do |dc|
10.times do |i|
thread = Thread.new do
loop do
assert_instance_of Integer, dc.set("key:#{i}", i.to_s)
end
rescue RuntimeError
nil # expected
end
thread.join(rand(0.01..0.2))
thread.kill
joined_thread = thread.join(1)
refute_nil joined_thread
refute_predicate joined_thread, :alive?
assert_equal i.to_s, dc.get("key:#{i}")
end
end
end
end
it 'handles asynchronous Thread#kill during pipelined get' do
with_nil_logger do
memcached(p, 19_191) do |dc|
10.times do |i|
expected_response = 100.times.to_h { |x| ["key:#{i}:#{x}", x.to_s] }
expected_response.each do |key, val|
dc.set(key, val)
end
thread = Thread.new do
loop do
assert_equal expected_response, dc.get_multi(expected_response.keys)
end
rescue RuntimeError
nil # expected
end
thread.join(rand(0.01..0.2))
thread.kill
joined_thread = thread.join(1)
refute_nil joined_thread
refute_predicate joined_thread, :alive?
assert_equal expected_response, dc.get_multi(expected_response.keys)
end
end
end
end
it 'passes a simple smoke test on a TCP socket' do
memcached_persistent(p) do |dc, port|
resp = dc.flush
refute_nil resp
assert_equal [true, true], resp
assert op_addset_succeeds(dc.set(:foo, 'bar'))
assert_equal 'bar', dc.get(:foo)
resp = dc.get('123')
assert_nil resp
assert op_addset_succeeds(dc.set('123', 'xyz'))
resp = dc.get('123')
assert_equal 'xyz', resp
assert op_addset_succeeds(dc.set('123', 'abc'))
dc.prepend('123', '0')
dc.append('123', '0')
assert_raises Dalli::UnmarshalError do
resp = dc.get('123')
end
dc.close
dc = nil
dc = Dalli::Client.new("localhost:#{port}", digest_class: OpenSSL::Digest::SHA1)
assert op_addset_succeeds(dc.set('456', 'xyz', 0, raw: true))
resp = dc.prepend '456', '0'
assert resp
resp = dc.append '456', '9'
assert resp
resp = dc.get('456', raw: true)
assert_equal '0xyz9', resp
assert op_addset_succeeds(dc.set('456', false))
resp = dc.get('456')
refute resp
resp = dc.stats
assert_instance_of Hash, resp
dc.close
end
end
it 'passes a simple smoke test on unix socket' do
memcached_persistent(:binary, MemcachedMock::UNIX_SOCKET_PATH) do |dc, path|
resp = dc.flush
refute_nil resp
assert_equal [true], resp
assert op_addset_succeeds(dc.set(:foo, 'bar'))
assert_equal 'bar', dc.get(:foo)
resp = dc.get('123')
assert_nil resp
assert op_addset_succeeds(dc.set('123', 'xyz'))
resp = dc.get('123')
assert_equal 'xyz', resp
assert op_addset_succeeds(dc.set('123', 'abc'))
dc.prepend('123', '0')
dc.append('123', '0')
assert_raises Dalli::UnmarshalError do
resp = dc.get('123')
end
dc.close
dc = nil
dc = Dalli::Client.new(path)
assert op_addset_succeeds(dc.set('456', 'xyz', 0, raw: true))
resp = dc.prepend '456', '0'
assert resp
resp = dc.append '456', '9'
assert resp
resp = dc.get('456', raw: true)
assert_equal '0xyz9', resp
assert op_addset_succeeds(dc.set('456', false))
resp = dc.get('456')
refute resp
resp = dc.stats
assert_instance_of Hash, resp
dc.close
end
end
end
end
end
|
