6 require 'mogilefs/backend'
8 class MogileFS::Backend
11 attr_reader :timeout, :dead
12 attr_writer :lasterr, :lasterrstr, :socket
16 class TestBackend < Test::Unit::TestCase
19 @backend = MogileFS::Backend.new :hosts => ['localhost:1']
23 assert_raises ArgumentError do MogileFS::Backend.new end
24 assert_raises ArgumentError do MogileFS::Backend.new :hosts => [] end
25 assert_raises ArgumentError do MogileFS::Backend.new :hosts => [''] end
27 assert_equal ['localhost:1'], @backend.hosts
28 assert_equal 3, @backend.timeout
29 assert_equal nil, @backend.lasterr
30 assert_equal nil, @backend.lasterrstr
31 assert_equal({}, @backend.dead)
33 @backend = MogileFS::Backend.new :hosts => ['localhost:6001'], :timeout => 1
34 assert_equal 1, @backend.timeout
38 received = Tempfile.new('received')
39 tmp = TempServer.new(Proc.new do |serv, port|
40 client, client_addr = serv.accept
42 received.syswrite(client.recv(4096))
43 client.send "OK 1 you=win\r\n", 0
46 @backend.hosts = [ "127.0.0.1:#{tmp.port}" ]
48 assert_equal({'you' => 'win'},
49 @backend.do_request('go!', { 'fight' => 'team fight!' }))
51 assert_equal "go! fight=team+fight%21\r\n", received.sysread(4096)
53 TempServer.destroy_all!
56 def test_do_request_send_error
59 def socket.closed?() false end
60 def socket.send(request, flags) raise SystemCallError, 'dummy' end
62 @backend.instance_variable_set '@socket', socket
64 assert_raises MogileFS::UnreachableBackendError do
65 @backend.do_request 'go!', { 'fight' => 'team fight!' }
68 assert_equal nil, @backend.instance_variable_get('@socket')
71 def test_automatic_exception
72 assert ! MogileFS::Backend.const_defined?('PebkacError')
73 assert @backend.error('pebkac')
74 assert_equal MogileFS::Error, @backend.error('PebkacError').superclass
75 assert MogileFS::Backend.const_defined?('PebkacError')
77 assert ! MogileFS::Backend.const_defined?('PebKacError')
78 assert @backend.error('peb_kac')
79 assert_equal MogileFS::Error, @backend.error('PebKacError').superclass
80 assert MogileFS::Backend.const_defined?('PebKacError')
83 def test_size_verify_error_defined
84 # "ErrorError" just looks dumb, but we used to get it
85 # since mogilefs would send us "size_verify_error" and we'd
86 # blindly append "Error" to the exception
87 assert ! MogileFS::Backend.const_defined?('SizeVerifyErrorError')
88 assert MogileFS::Backend.const_defined?('SizeVerifyError')
91 def test_do_request_truncated
94 def socket.closed?() false end
95 def socket.send(request, flags) return request.length - 1 end
97 @backend.instance_variable_set '@socket', socket
99 assert_raises MogileFS::RequestTruncatedError do
100 @backend.do_request 'go!', { 'fight' => 'team fight!' }
104 def test_make_request
105 assert_equal "go! fight=team+fight%21\r\n",
106 @backend.make_request('go!', { 'fight' => 'team fight!' })
109 def test_parse_response
110 assert_equal({'foo' => 'bar', 'baz' => 'hoge'},
111 @backend.parse_response('OK 1 foo=bar&baz=hoge'))
115 @backend.parse_response('ERR you totally suck')
116 rescue MogileFS::Error => err
117 assert_equal 'MogileFS::Backend::YouError', err.class.to_s
118 assert_equal 'totally suck', err.message
120 assert_equal 'MogileFS::Backend::YouError', err.class.to_s
122 assert_equal 'you', @backend.lasterr
123 assert_equal 'totally suck', @backend.lasterrstr
125 assert_raises MogileFS::InvalidResponseError do
126 @backend.parse_response 'garbage'
130 def test_readable_eh_readable
131 accept = Tempfile.new('accept')
132 tmp = TempServer.new(Proc.new do |serv, port|
133 client, client_addr = serv.accept
140 @backend = MogileFS::Backend.new :hosts => [ "127.0.0.1:#{tmp.port}" ]
141 assert_equal true, @backend.readable?
142 assert_equal 1, accept.stat.size
144 TempServer.destroy_all!
147 def test_readable_eh_not_readable
148 tmp = TempServer.new(Proc.new { |serv,port| serv.accept; sleep })
149 @backend = MogileFS::Backend.new(:hosts => [ "127.0.0.1:#{tmp.port}" ],
153 rescue MogileFS::UnreadableSocketError => e
154 assert_equal "127.0.0.1:#{tmp.port} never became readable", e.message
155 rescue Exception => err
156 flunk "MogileFS::UnreadableSocketError not raised #{err} #{err.backtrace}"
158 flunk "MogileFS::UnreadableSocketError not raised"
160 TempServer.destroy_all!
165 assert_equal({}, @backend.dead)
166 assert_raises MogileFS::UnreachableBackendError do @backend.socket end
167 assert_equal(['localhost:1'], @backend.dead.keys)
170 def test_socket_robust
171 bad_accept = Tempfile.new('bad_accept')
172 accept = Tempfile.new('accept')
173 bad = Proc.new do |serv,port|
174 client, client_addr = serv.accept
175 bad_accept.syswrite('!')
177 good = Proc.new do |serv,port|
178 client, client_addr = serv.accept
188 t1 = TempServer.new(bad, ENV['TEST_DEAD_PORT'])
189 t2 = TempServer.new(good)
190 hosts = ["127.0.0.1:#{t1.port}", "127.0.0.1:#{t2.port}"]
191 @backend = MogileFS::Backend.new(:hosts => hosts.dup)
192 assert_equal({}, @backend.dead)
193 old_chld_handler = trap('CHLD', 'DEFAULT')
195 Process.waitpid(t1.pid)
196 trap('CHLD', old_chld_handler)
197 sock = @backend.socket
198 assert_equal Socket, sock.class
199 port = Socket.unpack_sockaddr_in(sock.getpeername).first
200 # p [ 'ports', "port=#{port}", "t1=#{t1.port}", "t2=#{t2.port}" ]
201 assert_equal t2.port, port
203 assert_equal '.', sock.sysread(1)
205 TempServer.destroy_all!
208 assert_equal 0, bad_accept.stat.size
209 assert_equal nr, accept.stat.size
214 tmp = TempServer.new(Proc.new do |serv,port|
215 client, client_addr = serv.accept
217 r = IO.select([client], [client])
218 client.syswrite(accept_nr.to_s)
221 @backend = MogileFS::Backend.new :hosts => [ "127.0.0.1:#{tmp.port}" ]
222 assert @backend.socket
223 assert ! @backend.socket.closed?
224 IO.select([@backend.socket])
225 resp = @backend.socket.sysread(4096)
227 assert_equal nil, @backend.instance_variable_get(:@socket)
228 assert_equal 1, resp.to_i
230 TempServer.destroy_all!
234 assert_equal({"\272z" => "\360opy", "f\000" => "\272r"},
235 @backend.url_decode("%baz=%f0opy&f%00=%bar"))
236 assert_equal({}, @backend.url_decode(''))
240 params = [["f\000", "\272r"], ["\272z", "\360opy"]]
241 assert_equal "f%00=%bar&%baz=%f0opy", @backend.url_encode(params)
244 def test_url_escape # \n for unit_diff
245 actual = (0..255).map { |c| @backend.url_escape c.chr }.join "\n"
248 expected.push(*(0..0x1f).map { |c| "%%%0.2x" % c })
250 expected.push(*(0x21..0x2b).map { |c| "%%%0.2x" % c })
251 expected.push(*%w[, - . /])
252 expected.push(*('0'..'9'))
253 expected.push(*%w[: %3b %3c %3d %3e %3f %40])
254 expected.push(*('A'..'Z'))
255 expected.push(*%w[%5b \\ %5d %5e _ %60])
256 expected.push(*('a'..'z'))
257 expected.push(*(0x7b..0xff).map { |c| "%%%0.2x" % c })
259 expected = expected.join "\n"
261 assert_equal expected, actual
264 def test_url_unescape
266 input.push(*(0..0x1f).map { |c| "%%%0.2x" % c })
268 input.push(*(0x21..0x2b).map { |c| "%%%0.2x" % c })
269 input.push(*%w[, - . /])
270 input.push(*('0'..'9'))
271 input.push(*%w[: %3b %3c %3d %3e %3f %40])
272 input.push(*('A'..'Z'))
273 input.push(*%w[%5b \\ %5d %5e _ %60])
274 input.push(*('a'..'z'))
275 input.push(*(0x7b..0xff).map { |c| "%%%0.2x" % c })
277 actual = input.map { |c| @backend.url_unescape c }.join "\n"
279 expected = (0..255).map { |c| c.chr }.join "\n"
280 expected.sub! '+', ' '
282 assert_equal expected, actual