Merge pull request #11764 from apolcyn/fix_ruby_socket_leak
Release resources more eagerly on ruby server
diff --git a/src/ruby/lib/grpc/generic/active_call.rb b/src/ruby/lib/grpc/generic/active_call.rb
index 67c984a..87b29c2 100644
--- a/src/ruby/lib/grpc/generic/active_call.rb
+++ b/src/ruby/lib/grpc/generic/active_call.rb
@@ -40,13 +40,13 @@
module GRPC
# The ActiveCall class provides simple methods for sending marshallable
# data to a call
- class ActiveCall
+ class ActiveCall # rubocop:disable Metrics/ClassLength
include Core::TimeConsts
include Core::CallOps
extend Forwardable
- attr_reader :deadline, :metadata_sent, :metadata_to_send
+ attr_reader :deadline, :metadata_sent, :metadata_to_send, :peer, :peer_cert
def_delegators :@call, :cancel, :metadata, :write_flag, :write_flag=,
- :peer, :peer_cert, :trailing_metadata
+ :trailing_metadata, :status
# client_invoke begins a client invocation.
#
@@ -100,6 +100,18 @@
fail(ArgumentError, 'Already sent md') if started && metadata_to_send
@metadata_to_send = metadata_to_send || {} unless started
@send_initial_md_mutex = Mutex.new
+
+ @output_stream_done = false
+ @input_stream_done = false
+ @call_finished = false
+ @call_finished_mu = Mutex.new
+
+ @client_call_executed = false
+ @client_call_executed_mu = Mutex.new
+
+ # set the peer now so that the accessor can still function
+ # after the server closes the call
+ @peer = call.peer
end
# Sends the initial metadata that has yet to be sent.
@@ -142,11 +154,9 @@
Operation.new(self)
end
- # finished waits until a client call is completed.
- #
- # It blocks until the remote endpoint acknowledges by sending a status.
- def finished
+ def receive_and_check_status
batch_result = @call.run_batch(RECV_STATUS_ON_CLIENT => nil)
+ set_input_stream_done
attach_status_results_and_complete_call(batch_result)
end
@@ -155,8 +165,6 @@
@call.trailing_metadata = recv_status_batch_result.status.metadata
end
@call.status = recv_status_batch_result.status
- @call.close
- op_is_done
# The RECV_STATUS in run_batch always succeeds
# Check the status for a bad status or failed run batch
@@ -193,9 +201,19 @@
}
ops[RECV_CLOSE_ON_SERVER] = nil if assert_finished
@call.run_batch(ops)
+ set_output_stream_done
+
nil
end
+ # Intended for use on server-side calls when a single request from
+ # the client is expected (i.e., unary and server-streaming RPC types).
+ def read_unary_request
+ req = remote_read
+ set_input_stream_done
+ req
+ end
+
def server_unary_response(req, trailing_metadata: {},
code: Core::StatusCodes::OK, details: 'OK')
ops = {}
@@ -211,6 +229,7 @@
ops[RECV_CLOSE_ON_SERVER] = nil
@call.run_batch(ops)
+ set_output_stream_done
end
# remote_read reads a response from the remote endpoint.
@@ -241,6 +260,8 @@
# each_remote_read passes each response to the given block or returns an
# enumerator the responses if no block is given.
+ # Used to generate the request enumerable for
+ # server-side client-streaming RPC's.
#
# == Enumerator ==
#
@@ -258,10 +279,14 @@
# @return [Enumerator] if no block was given
def each_remote_read
return enum_for(:each_remote_read) unless block_given?
- loop do
- resp = remote_read
- break if resp.nil? # the last response was received
- yield resp
+ begin
+ loop do
+ resp = remote_read
+ break if resp.nil? # the last response was received
+ yield resp
+ end
+ ensure
+ set_input_stream_done
end
end
@@ -287,13 +312,17 @@
# @return [Enumerator] if no block was given
def each_remote_read_then_finish
return enum_for(:each_remote_read_then_finish) unless block_given?
- loop do
- resp = remote_read
- if resp.nil? # the last response was received, but not finished yet
- finished
- break
+ begin
+ loop do
+ resp = remote_read
+ if resp.nil? # the last response was received
+ receive_and_check_status
+ break
+ end
+ yield resp
end
- yield resp
+ ensure
+ set_input_stream_done
end
end
@@ -305,6 +334,7 @@
# a list, multiple metadata for its key are sent
# @return [Object] the response received from the server
def request_response(req, metadata: {})
+ raise_error_if_already_executed
ops = {
SEND_MESSAGE => @marshal.call(req),
SEND_CLOSE_FROM_CLIENT => nil,
@@ -319,7 +349,15 @@
end
@metadata_sent = true
end
- batch_result = @call.run_batch(ops)
+
+ begin
+ batch_result = @call.run_batch(ops)
+ # no need to check for cancellation after a CallError because this
+ # batch contains a RECV_STATUS op
+ ensure
+ set_input_stream_done
+ set_output_stream_done
+ end
@call.metadata = batch_result.metadata
attach_status_results_and_complete_call(batch_result)
@@ -339,10 +377,20 @@
# a list, multiple metadata for its key are sent
# @return [Object] the response received from the server
def client_streamer(requests, metadata: {})
- # Metadata might have already been sent if this is an operation view
- merge_metadata_and_send_if_not_already_sent(metadata)
+ raise_error_if_already_executed
+ begin
+ merge_metadata_and_send_if_not_already_sent(metadata)
+ requests.each { |r| @call.run_batch(SEND_MESSAGE => @marshal.call(r)) }
+ rescue GRPC::Core::CallError => e
+ receive_and_check_status # check for Cancelled
+ raise e
+ rescue => e
+ set_input_stream_done
+ raise e
+ ensure
+ set_output_stream_done
+ end
- requests.each { |r| @call.run_batch(SEND_MESSAGE => @marshal.call(r)) }
batch_result = @call.run_batch(
SEND_CLOSE_FROM_CLIENT => nil,
RECV_INITIAL_METADATA => nil,
@@ -350,12 +398,11 @@
RECV_STATUS_ON_CLIENT => nil
)
+ set_input_stream_done
+
@call.metadata = batch_result.metadata
attach_status_results_and_complete_call(batch_result)
get_message_from_batch_result(batch_result)
- rescue GRPC::Core::CallError => e
- finished # checks for Cancelled
- raise e
end
# server_streamer sends one request to the GRPC server, which yields a
@@ -373,6 +420,7 @@
# a list, multiple metadata for its key are sent
# @return [Enumerator|nil] a response Enumerator
def server_streamer(req, metadata: {})
+ raise_error_if_already_executed
ops = {
SEND_MESSAGE => @marshal.call(req),
SEND_CLOSE_FROM_CLIENT => nil
@@ -384,13 +432,22 @@
end
@metadata_sent = true
end
- @call.run_batch(ops)
+
+ begin
+ @call.run_batch(ops)
+ rescue GRPC::Core::CallError => e
+ receive_and_check_status # checks for Cancelled
+ raise e
+ rescue => e
+ set_input_stream_done
+ raise e
+ ensure
+ set_output_stream_done
+ end
+
replies = enum_for(:each_remote_read_then_finish)
return replies unless block_given?
replies.each { |r| yield r }
- rescue GRPC::Core::CallError => e
- finished # checks for Cancelled
- raise e
end
# bidi_streamer sends a stream of requests to the GRPC server, and yields
@@ -421,6 +478,7 @@
# a list, multiple metadata for its key are sent
# @return [Enumerator, nil] a response Enumerator
def bidi_streamer(requests, metadata: {}, &blk)
+ raise_error_if_already_executed
# Metadata might have already been sent if this is an operation view
merge_metadata_and_send_if_not_already_sent(metadata)
bd = BidiCall.new(@call,
@@ -428,7 +486,10 @@
@unmarshal,
metadata_received: @metadata_received)
- bd.run_on_client(requests, @op_notifier, &blk)
+ bd.run_on_client(requests,
+ proc { set_input_stream_done },
+ proc { set_output_stream_done },
+ &blk)
end
# run_server_bidi orchestrates a BiDi stream processing on a server.
@@ -449,7 +510,7 @@
metadata_received: @metadata_received,
req_view: MultiReqView.new(self))
- bd.run_on_server(gen_each_reply)
+ bd.run_on_server(gen_each_reply, proc { set_input_stream_done })
end
# Waits till an operation completes
@@ -459,7 +520,8 @@
@op_notifier.wait
end
- # Signals that an operation is done
+ # Signals that an operation is done.
+ # Only relevant on the client-side (this is a no-op on the server-side)
def op_is_done
return if @op_notifier.nil?
@op_notifier.notify(self)
@@ -484,8 +546,40 @@
end
end
+ def attach_peer_cert(peer_cert)
+ @peer_cert = peer_cert
+ end
+
private
+ # To be called once the "input stream" has been completelly
+ # read through (i.e, done reading from client or received status)
+ # note this is idempotent
+ def set_input_stream_done
+ @call_finished_mu.synchronize do
+ @input_stream_done = true
+ maybe_finish_and_close_call_locked
+ end
+ end
+
+ # To be called once the "output stream" has been completelly
+ # sent through (i.e, done sending from client or sent status)
+ # note this is idempotent
+ def set_output_stream_done
+ @call_finished_mu.synchronize do
+ @output_stream_done = true
+ maybe_finish_and_close_call_locked
+ end
+ end
+
+ def maybe_finish_and_close_call_locked
+ return unless @output_stream_done && @input_stream_done
+ return if @call_finished
+ @call_finished = true
+ op_is_done
+ @call.close
+ end
+
# Starts the call if not already started
# @param metadata [Hash] metadata to be sent to the server. If a value is
# a list, multiple metadata for its key are sent
@@ -493,6 +587,15 @@
merge_metadata_to_send(metadata) && send_initial_metadata
end
+ def raise_error_if_already_executed
+ @client_call_executed_mu.synchronize do
+ if @client_call_executed
+ fail GRPC::Core::CallError, 'attempting to re-run a call'
+ end
+ @client_call_executed = true
+ end
+ end
+
def self.view_class(*visible_methods)
Class.new do
extend ::Forwardable
@@ -518,6 +621,7 @@
# server client_streamer handlers.
MultiReqView = view_class(:cancelled?, :deadline,
:each_remote_read, :metadata, :output_metadata,
+ :peer, :peer_cert,
:send_initial_metadata,
:metadata_to_send,
:merge_metadata_to_send,
diff --git a/src/ruby/lib/grpc/generic/bidi_call.rb b/src/ruby/lib/grpc/generic/bidi_call.rb
index e54cf78..9e125cd 100644
--- a/src/ruby/lib/grpc/generic/bidi_call.rb
+++ b/src/ruby/lib/grpc/generic/bidi_call.rb
@@ -62,12 +62,19 @@
# block that can be invoked with each response.
#
# @param requests the Enumerable of requests to send
- # @param op_notifier a Notifier used to signal completion
+ # @param set_input_stream_done [Proc] called back when we're done
+ # reading the input stream
+ # @param set_input_stream_done [Proc] called back when we're done
+ # sending data on the output stream
# @return an Enumerator of requests to yield
- def run_on_client(requests, op_notifier, &blk)
- @op_notifier = op_notifier
- @enq_th = Thread.new { write_loop(requests) }
- read_loop(&blk)
+ def run_on_client(requests,
+ set_input_stream_done,
+ set_output_stream_done,
+ &blk)
+ @enq_th = Thread.new do
+ write_loop(requests, set_output_stream_done: set_output_stream_done)
+ end
+ read_loop(set_input_stream_done, &blk)
end
# Begins orchestration of the Bidi stream for a server generating replies.
@@ -81,12 +88,17 @@
# produced by gen_each_reply could ignore the received_msgs
#
# @param gen_each_reply [Proc] generates the BiDi stream replies.
- def run_on_server(gen_each_reply)
+ # @param set_input_steam_done [Proc] call back to call when
+ # the reads have been completely read through.
+ def run_on_server(gen_each_reply, set_input_stream_done)
# Pass in the optional call object parameter if possible
if gen_each_reply.arity == 1
- replys = gen_each_reply.call(read_loop(is_client: false))
+ replys = gen_each_reply.call(
+ read_loop(set_input_stream_done, is_client: false))
elsif gen_each_reply.arity == 2
- replys = gen_each_reply.call(read_loop(is_client: false), @req_view)
+ replys = gen_each_reply.call(
+ read_loop(set_input_stream_done, is_client: false),
+ @req_view)
else
fail 'Illegal arity of reply generator'
end
@@ -99,22 +111,6 @@
END_OF_READS = :end_of_reads
END_OF_WRITES = :end_of_writes
- # signals that bidi operation is complete
- def notify_done
- return unless @op_notifier
- GRPC.logger.debug("bidi-notify-done: notifying #{@op_notifier}")
- @op_notifier.notify(self)
- end
-
- # signals that a bidi operation is complete (read + write)
- def finished
- @done_mutex.synchronize do
- return unless @reads_complete && @writes_complete && !@complete
- @call.close
- @complete = true
- end
- end
-
# performs a read using @call.run_batch, ensures metadata is set up
def read_using_run_batch
ops = { RECV_MESSAGE => nil }
@@ -127,7 +123,8 @@
batch_result
end
- def write_loop(requests, is_client: true)
+ # set_output_stream_done is relevant on client-side
+ def write_loop(requests, is_client: true, set_output_stream_done: nil)
GRPC.logger.debug('bidi-write-loop: starting')
count = 0
requests.each do |req|
@@ -151,23 +148,20 @@
GRPC.logger.debug("bidi-write-loop: client sent #{count}, waiting")
@call.run_batch(SEND_CLOSE_FROM_CLIENT => nil)
GRPC.logger.debug('bidi-write-loop: done')
- notify_done
- @writes_complete = true
- finished
end
GRPC.logger.debug('bidi-write-loop: finished')
rescue StandardError => e
GRPC.logger.warn('bidi-write-loop: failed')
GRPC.logger.warn(e)
- notify_done
- @writes_complete = true
- finished
raise e
+ ensure
+ set_output_stream_done.call if is_client
end
# Provides an enumerator that yields results of remote reads
- def read_loop(is_client: true)
+ def read_loop(set_input_stream_done, is_client: true)
return enum_for(:read_loop,
+ set_input_stream_done,
is_client: is_client) unless block_given?
GRPC.logger.debug('bidi-read-loop: starting')
begin
@@ -201,10 +195,10 @@
GRPC.logger.warn('bidi: read-loop failed')
GRPC.logger.warn(e)
raise e
+ ensure
+ set_input_stream_done.call
end
GRPC.logger.debug('bidi-read-loop: finished')
- @reads_complete = true
- finished
# Make sure that the write loop is done done before finishing the call.
# Note that blocking is ok at this point because we've already received
# a status
diff --git a/src/ruby/lib/grpc/generic/rpc_desc.rb b/src/ruby/lib/grpc/generic/rpc_desc.rb
index ce00975..89cf8ff 100644
--- a/src/ruby/lib/grpc/generic/rpc_desc.rb
+++ b/src/ruby/lib/grpc/generic/rpc_desc.rb
@@ -48,7 +48,7 @@
end
def handle_request_response(active_call, mth)
- req = active_call.remote_read
+ req = active_call.read_unary_request
resp = mth.call(req, active_call.single_req_view)
active_call.server_unary_response(
resp, trailing_metadata: active_call.output_metadata)
@@ -61,7 +61,7 @@
end
def handle_server_streamer(active_call, mth)
- req = active_call.remote_read
+ req = active_call.read_unary_request
replys = mth.call(req, active_call.single_req_view)
replys.each { |r| active_call.remote_send(r) }
send_status(active_call, OK, 'OK', active_call.output_metadata)
diff --git a/src/ruby/lib/grpc/generic/rpc_server.rb b/src/ruby/lib/grpc/generic/rpc_server.rb
index ef2cc0c..33b3cea 100644
--- a/src/ruby/lib/grpc/generic/rpc_server.rb
+++ b/src/ruby/lib/grpc/generic/rpc_server.rb
@@ -418,6 +418,7 @@
metadata_received: true,
started: false,
metadata_to_send: connect_md)
+ c.attach_peer_cert(an_rpc.call.peer_cert)
mth = an_rpc.method.to_sym
[c, mth]
end
diff --git a/src/ruby/spec/client_auth_spec.rb b/src/ruby/spec/client_auth_spec.rb
new file mode 100644
index 0000000..79c9192
--- /dev/null
+++ b/src/ruby/spec/client_auth_spec.rb
@@ -0,0 +1,137 @@
+# Copyright 2015 gRPC authors.
+#
+# 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 'grpc'
+
+def create_channel_creds
+ test_root = File.join(File.dirname(__FILE__), 'testdata')
+ files = ['ca.pem', 'client.key', 'client.pem']
+ creds = files.map { |f| File.open(File.join(test_root, f)).read }
+ GRPC::Core::ChannelCredentials.new(creds[0], creds[1], creds[2])
+end
+
+def client_cert
+ test_root = File.join(File.dirname(__FILE__), 'testdata')
+ cert = File.open(File.join(test_root, 'client.pem')).read
+ fail unless cert.is_a?(String)
+ cert
+end
+
+def create_server_creds
+ test_root = File.join(File.dirname(__FILE__), 'testdata')
+ p "test root: #{test_root}"
+ files = ['ca.pem', 'server1.key', 'server1.pem']
+ creds = files.map { |f| File.open(File.join(test_root, f)).read }
+ GRPC::Core::ServerCredentials.new(
+ creds[0],
+ [{ private_key: creds[1], cert_chain: creds[2] }],
+ true) # force client auth
+end
+
+# A test message
+class EchoMsg
+ def self.marshal(_o)
+ ''
+ end
+
+ def self.unmarshal(_o)
+ EchoMsg.new
+ end
+end
+
+# a test service that checks the cert of its peer
+class SslTestService
+ include GRPC::GenericService
+ rpc :an_rpc, EchoMsg, EchoMsg
+ rpc :a_client_streaming_rpc, stream(EchoMsg), EchoMsg
+ rpc :a_server_streaming_rpc, EchoMsg, stream(EchoMsg)
+ rpc :a_bidi_rpc, stream(EchoMsg), stream(EchoMsg)
+
+ def check_peer_cert(call)
+ error_msg = "want:\n#{client_cert}\n\ngot:\n#{call.peer_cert}"
+ fail(error_msg) unless call.peer_cert == client_cert
+ end
+
+ def an_rpc(req, call)
+ check_peer_cert(call)
+ req
+ end
+
+ def a_client_streaming_rpc(call)
+ check_peer_cert(call)
+ call.each_remote_read.each { |r| p r }
+ EchoMsg.new
+ end
+
+ def a_server_streaming_rpc(_, call)
+ check_peer_cert(call)
+ [EchoMsg.new, EchoMsg.new]
+ end
+
+ def a_bidi_rpc(requests, call)
+ check_peer_cert(call)
+ requests.each { |r| p r }
+ [EchoMsg.new, EchoMsg.new]
+ end
+end
+
+SslTestServiceStub = SslTestService.rpc_stub_class
+
+describe 'client-server auth' do
+ RpcServer = GRPC::RpcServer
+
+ before(:all) do
+ server_opts = {
+ poll_period: 1
+ }
+ @srv = RpcServer.new(**server_opts)
+ port = @srv.add_http2_port('0.0.0.0:0', create_server_creds)
+ @srv.handle(SslTestService)
+ @srv_thd = Thread.new { @srv.run }
+ @srv.wait_till_running
+
+ client_opts = {
+ channel_args: {
+ GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr'
+ }
+ }
+ @stub = SslTestServiceStub.new("localhost:#{port}",
+ create_channel_creds,
+ **client_opts)
+ end
+
+ after(:all) do
+ expect(@srv.stopped?).to be(false)
+ @srv.stop
+ @srv_thd.join
+ end
+
+ it 'client-server auth with unary RPCs' do
+ @stub.an_rpc(EchoMsg.new)
+ end
+
+ it 'client-server auth with client streaming RPCs' do
+ @stub.a_client_streaming_rpc([EchoMsg.new, EchoMsg.new])
+ end
+
+ it 'client-server auth with server streaming RPCs' do
+ responses = @stub.a_server_streaming_rpc(EchoMsg.new)
+ responses.each { |r| p r }
+ end
+
+ it 'client-server auth with bidi RPCs' do
+ responses = @stub.a_bidi_rpc([EchoMsg.new, EchoMsg.new])
+ responses.each { |r| p r }
+ end
+end
diff --git a/src/ruby/spec/generic/active_call_spec.rb b/src/ruby/spec/generic/active_call_spec.rb
index 72e55eb..ec0c294 100644
--- a/src/ruby/spec/generic/active_call_spec.rb
+++ b/src/ruby/spec/generic/active_call_spec.rb
@@ -473,7 +473,7 @@
server_call.remote_send('server_response')
expect(client_call.remote_read).to eq('server_response')
server_call.send_status(OK, 'status code is OK')
- expect { client_call.finished }.to_not raise_error
+ expect { client_call.receive_and_check_status }.to_not raise_error
end
it 'finishes ok if the server sends an early status response' do
@@ -490,7 +490,7 @@
expect do
call.run_batch(CallOps::SEND_CLOSE_FROM_CLIENT => nil)
end.to_not raise_error
- expect { client_call.finished }.to_not raise_error
+ expect { client_call.receive_and_check_status }.to_not raise_error
end
it 'finishes ok if SEND_CLOSE and RECV_STATUS has been sent' do
diff --git a/src/ruby/spec/generic/client_stub_spec.rb b/src/ruby/spec/generic/client_stub_spec.rb
index 09b88c7..a8653e7 100644
--- a/src/ruby/spec/generic/client_stub_spec.rb
+++ b/src/ruby/spec/generic/client_stub_spec.rb
@@ -36,6 +36,53 @@
include GRPC::Core::TimeConsts
include GRPC::Core::CallOps
+# check that methods on a finished/closed call t crash
+def check_op_view_of_finished_client_call(op_view,
+ expected_metadata,
+ expected_trailing_metadata)
+ # use read_response_stream to try to iterate through
+ # possible response stream
+ fail('need something to attempt reads') unless block_given?
+ expect do
+ resp = op_view.execute
+ yield resp
+ end.to raise_error(GRPC::Core::CallError)
+
+ expect { op_view.start_call }.to raise_error(RuntimeError)
+
+ sanity_check_values_of_accessors(op_view,
+ expected_metadata,
+ expected_trailing_metadata)
+
+ expect do
+ op_view.wait
+ op_view.cancel
+ op_view.write_flag = 1
+ end.to_not raise_error
+end
+
+def sanity_check_values_of_accessors(op_view,
+ expected_metadata,
+ expected_trailing_metadata)
+ expected_status = Struct::Status.new
+ expected_status.code = 0
+ expected_status.details = 'OK'
+ expected_status.metadata = expected_trailing_metadata
+
+ expect(op_view.status).to eq(expected_status)
+ expect(op_view.metadata).to eq(expected_metadata)
+ expect(op_view.trailing_metadata).to eq(expected_trailing_metadata)
+
+ expect(op_view.cancelled?).to be(false)
+ expect(op_view.write_flag).to be(nil)
+
+ # The deadline attribute of a call can be either
+ # a GRPC::Core::TimeSpec or a Time, which are mutually exclusive.
+ # TODO: fix so that the accessor always returns the same type.
+ expect(op_view.deadline.is_a?(GRPC::Core::TimeSpec) ||
+ op_view.deadline.is_a?(Time)).to be(true)
+end
+
describe 'ClientStub' do
let(:noop) { proc { |x| x } }
@@ -45,6 +92,7 @@
@method = 'an_rpc_method'
@pass = OK
@fail = INTERNAL
+ @metadata = { k1: 'v1', k2: 'v2' }
end
after(:each) do
@@ -107,7 +155,7 @@
end
end
- describe '#request_response' do
+ describe '#request_response', request_response: true do
before(:each) do
@sent_msg, @resp = 'a_msg', 'a_reply'
end
@@ -126,7 +174,7 @@
server_port = create_test_server
host = "localhost:#{server_port}"
th = run_request_response(@sent_msg, @resp, @pass,
- k1: 'v1', k2: 'v2')
+ expected_metadata: { k1: 'v1', k2: 'v2' })
stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
expect(get_response(stub)).to eq(@resp)
th.join
@@ -187,13 +235,24 @@
# Kill the server thread so tests can complete
th.kill
end
+
+ it 'should raise ArgumentError if metadata contains invalid values' do
+ @metadata.merge!(k3: 3)
+ server_port = create_test_server
+ host = "localhost:#{server_port}"
+ stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
+ expect do
+ get_response(stub)
+ end.to raise_error(ArgumentError,
+ /Header values must be of type string or array/)
+ end
end
describe 'without a call operation' do
def get_response(stub, credentials: nil)
puts credentials.inspect
stub.request_response(@method, @sent_msg, noop, noop,
- metadata: { k1: 'v1', k2: 'v2' },
+ metadata: @metadata,
credentials: credentials)
end
@@ -201,40 +260,62 @@
end
describe 'via a call operation' do
+ after(:each) do
+ # make sure op.wait doesn't hang, even if there's a bad status
+ @op.wait
+ end
def get_response(stub, run_start_call_first: false, credentials: nil)
- op = stub.request_response(@method, @sent_msg, noop, noop,
- return_op: true,
- metadata: { k1: 'v1', k2: 'v2' },
- deadline: from_relative_time(2),
- credentials: credentials)
- expect(op).to be_a(GRPC::ActiveCall::Operation)
- op.start_call if run_start_call_first
- result = op.execute
- op.wait # make sure wait doesn't hang
+ @op = stub.request_response(@method, @sent_msg, noop, noop,
+ return_op: true,
+ metadata: @metadata,
+ deadline: from_relative_time(2),
+ credentials: credentials)
+ expect(@op).to be_a(GRPC::ActiveCall::Operation)
+ @op.start_call if run_start_call_first
+ result = @op.execute
result
end
it_behaves_like 'request response'
- it 'sends metadata to the server ok when running start_call first' do
+ def run_op_view_metadata_test(run_start_call_first)
server_port = create_test_server
host = "localhost:#{server_port}"
- th = run_request_response(@sent_msg, @resp, @pass,
- k1: 'v1', k2: 'v2')
+
+ @server_initial_md = { 'sk1' => 'sv1', 'sk2' => 'sv2' }
+ @server_trailing_md = { 'tk1' => 'tv1', 'tk2' => 'tv2' }
+ th = run_request_response(
+ @sent_msg, @resp, @pass,
+ expected_metadata: @metadata,
+ server_initial_md: @server_initial_md,
+ server_trailing_md: @server_trailing_md)
stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
- expect(get_response(stub)).to eq(@resp)
+ expect(
+ get_response(stub,
+ run_start_call_first: run_start_call_first)).to eq(@resp)
th.join
end
+
+ it 'sends metadata to the server ok when running start_call first' do
+ run_op_view_metadata_test(true)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) { |r| p r }
+ end
+
+ it 'does not crash when used after the call has been finished' do
+ run_op_view_metadata_test(false)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) { |r| p r }
+ end
end
end
- describe '#client_streamer' do
+ describe '#client_streamer', client_streamer: true do
before(:each) do
Thread.abort_on_exception = true
server_port = create_test_server
host = "localhost:#{server_port}"
@stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
- @metadata = { k1: 'v1', k2: 'v2' }
@sent_msgs = Array.new(3) { |i| 'msg_' + (i + 1).to_s }
@resp = 'a_reply'
end
@@ -247,7 +328,8 @@
end
it 'should send metadata to the server ok' do
- th = run_client_streamer(@sent_msgs, @resp, @pass, **@metadata)
+ th = run_client_streamer(@sent_msgs, @resp, @pass,
+ expected_metadata: @metadata)
expect(get_response(@stub)).to eq(@resp)
th.join
end
@@ -278,27 +360,50 @@
end
describe 'via a call operation' do
+ after(:each) do
+ # make sure op.wait doesn't hang, even if there's a bad status
+ @op.wait
+ end
def get_response(stub, run_start_call_first: false)
- op = stub.client_streamer(@method, @sent_msgs, noop, noop,
- return_op: true, metadata: @metadata)
- expect(op).to be_a(GRPC::ActiveCall::Operation)
- op.start_call if run_start_call_first
- result = op.execute
- op.wait # make sure wait doesn't hang
+ @op = stub.client_streamer(@method, @sent_msgs, noop, noop,
+ return_op: true, metadata: @metadata)
+ expect(@op).to be_a(GRPC::ActiveCall::Operation)
+ @op.start_call if run_start_call_first
+ result = @op.execute
result
end
it_behaves_like 'client streaming'
- it 'sends metadata to the server ok when running start_call first' do
- th = run_client_streamer(@sent_msgs, @resp, @pass, **@metadata)
- expect(get_response(@stub, run_start_call_first: true)).to eq(@resp)
+ def run_op_view_metadata_test(run_start_call_first)
+ @server_initial_md = { 'sk1' => 'sv1', 'sk2' => 'sv2' }
+ @server_trailing_md = { 'tk1' => 'tv1', 'tk2' => 'tv2' }
+ th = run_client_streamer(
+ @sent_msgs, @resp, @pass,
+ expected_metadata: @metadata,
+ server_initial_md: @server_initial_md,
+ server_trailing_md: @server_trailing_md)
+ expect(
+ get_response(@stub,
+ run_start_call_first: run_start_call_first)).to eq(@resp)
th.join
end
+
+ it 'sends metadata to the server ok when running start_call first' do
+ run_op_view_metadata_test(true)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) { |r| p r }
+ end
+
+ it 'does not crash when used after the call has been finished' do
+ run_op_view_metadata_test(false)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) { |r| p r }
+ end
end
end
- describe '#server_streamer' do
+ describe '#server_streamer', server_streamer: true do
before(:each) do
@sent_msg = 'a_msg'
@replys = Array.new(3) { |i| 'reply_' + (i + 1).to_s }
@@ -328,18 +433,42 @@
server_port = create_test_server
host = "localhost:#{server_port}"
th = run_server_streamer(@sent_msg, @replys, @fail,
- k1: 'v1', k2: 'v2')
+ expected_metadata: { k1: 'v1', k2: 'v2' })
stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
e = get_responses(stub)
expect { e.collect { |r| r } }.to raise_error(GRPC::BadStatus)
th.join
end
+
+ it 'should raise ArgumentError if metadata contains invalid values' do
+ @metadata.merge!(k3: 3)
+ server_port = create_test_server
+ host = "localhost:#{server_port}"
+ stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
+ expect do
+ get_responses(stub)
+ end.to raise_error(ArgumentError,
+ /Header values must be of type string or array/)
+ end
+
+ it 'the call terminates when there is an unmarshalling error' do
+ server_port = create_test_server
+ host = "localhost:#{server_port}"
+ th = run_server_streamer(@sent_msg, @replys, @pass)
+ stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
+
+ unmarshal = proc { fail(ArgumentError, 'test unmarshalling error') }
+ expect do
+ get_responses(stub, unmarshal: unmarshal).collect { |r| r }
+ end.to raise_error(ArgumentError, 'test unmarshalling error')
+ th.join
+ end
end
describe 'without a call operation' do
- def get_responses(stub)
- e = stub.server_streamer(@method, @sent_msg, noop, noop,
- metadata: { k1: 'v1', k2: 'v2' })
+ def get_responses(stub, unmarshal: noop)
+ e = stub.server_streamer(@method, @sent_msg, noop, unmarshal,
+ metadata: @metadata)
expect(e).to be_a(Enumerator)
e
end
@@ -351,10 +480,10 @@
after(:each) do
@op.wait # make sure wait doesn't hang
end
- def get_responses(stub, run_start_call_first: false)
- @op = stub.server_streamer(@method, @sent_msg, noop, noop,
+ def get_responses(stub, run_start_call_first: false, unmarshal: noop)
+ @op = stub.server_streamer(@method, @sent_msg, noop, unmarshal,
return_op: true,
- metadata: { k1: 'v1', k2: 'v2' })
+ metadata: @metadata)
expect(@op).to be_a(GRPC::ActiveCall::Operation)
@op.start_call if run_start_call_first
e = @op.execute
@@ -364,20 +493,41 @@
it_behaves_like 'server streaming'
- it 'should send metadata to the server ok when start_call is run first' do
+ def run_op_view_metadata_test(run_start_call_first)
server_port = create_test_server
host = "localhost:#{server_port}"
- th = run_server_streamer(@sent_msg, @replys, @fail,
- k1: 'v1', k2: 'v2')
+ @server_initial_md = { 'sk1' => 'sv1', 'sk2' => 'sv2' }
+ @server_trailing_md = { 'tk1' => 'tv1', 'tk2' => 'tv2' }
+ th = run_server_streamer(
+ @sent_msg, @replys, @pass,
+ expected_metadata: @metadata,
+ server_initial_md: @server_initial_md,
+ server_trailing_md: @server_trailing_md)
stub = GRPC::ClientStub.new(host, :this_channel_is_insecure)
- e = get_responses(stub, run_start_call_first: true)
- expect { e.collect { |r| r } }.to raise_error(GRPC::BadStatus)
+ e = get_responses(stub, run_start_call_first: run_start_call_first)
+ expect(e.collect { |r| r }).to eq(@replys)
th.join
end
+
+ it 'should send metadata to the server ok when start_call is run first' do
+ run_op_view_metadata_test(true)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) do |responses|
+ responses.each { |r| p r }
+ end
+ end
+
+ it 'does not crash when used after the call has been finished' do
+ run_op_view_metadata_test(false)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) do |responses|
+ responses.each { |r| p r }
+ end
+ end
end
end
- describe '#bidi_streamer' do
+ describe '#bidi_streamer', bidi: true do
before(:each) do
@sent_msgs = Array.new(3) { |i| 'msg_' + (i + 1).to_s }
@replys = Array.new(3) { |i| 'reply_' + (i + 1).to_s }
@@ -386,7 +536,7 @@
end
shared_examples 'bidi streaming' do
- it 'supports sending all the requests first', bidi: true do
+ it 'supports sending all the requests first' do
th = run_bidi_streamer_handle_inputs_first(@sent_msgs, @replys,
@pass)
stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
@@ -395,7 +545,7 @@
th.join
end
- it 'supports client-initiated ping pong', bidi: true do
+ it 'supports client-initiated ping pong' do
th = run_bidi_streamer_echo_ping_pong(@sent_msgs, @pass, true)
stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
e = get_responses(stub)
@@ -403,18 +553,39 @@
th.join
end
- it 'supports a server-initiated ping pong', bidi: true do
+ it 'supports a server-initiated ping pong' do
th = run_bidi_streamer_echo_ping_pong(@sent_msgs, @pass, false)
stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
e = get_responses(stub)
expect(e.collect { |r| r }).to eq(@sent_msgs)
th.join
end
+
+ it 'should raise an error if the status is not ok' do
+ th = run_bidi_streamer_echo_ping_pong(@sent_msgs, @fail, false)
+ stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
+ e = get_responses(stub)
+ expect { e.collect { |r| r } }.to raise_error(GRPC::BadStatus)
+ th.join
+ end
+
+ # TODO: add test for metadata-related ArgumentError in a bidi call once
+ # issue mentioned in https://github.com/grpc/grpc/issues/10526 is fixed
+
+ it 'should send metadata to the server ok' do
+ th = run_bidi_streamer_echo_ping_pong(@sent_msgs, @pass, true,
+ expected_metadata: @metadata)
+ stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
+ e = get_responses(stub)
+ expect(e.collect { |r| r }).to eq(@sent_msgs)
+ th.join
+ end
end
describe 'without a call operation' do
def get_responses(stub)
- e = stub.bidi_streamer(@method, @sent_msgs, noop, noop)
+ e = stub.bidi_streamer(@method, @sent_msgs, noop, noop,
+ metadata: @metadata)
expect(e).to be_a(Enumerator)
e
end
@@ -428,7 +599,8 @@
end
def get_responses(stub, run_start_call_first: false)
@op = stub.bidi_streamer(@method, @sent_msgs, noop, noop,
- return_op: true)
+ return_op: true,
+ metadata: @metadata)
expect(@op).to be_a(GRPC::ActiveCall::Operation)
@op.start_call if run_start_call_first
e = @op.execute
@@ -438,27 +610,53 @@
it_behaves_like 'bidi streaming'
- it 'can run start_call before executing the call' do
- th = run_bidi_streamer_handle_inputs_first(@sent_msgs, @replys,
- @pass)
+ def run_op_view_metadata_test(run_start_call_first)
+ @server_initial_md = { 'sk1' => 'sv1', 'sk2' => 'sv2' }
+ @server_trailing_md = { 'tk1' => 'tv1', 'tk2' => 'tv2' }
+ th = run_bidi_streamer_echo_ping_pong(
+ @sent_msgs, @pass, true,
+ expected_metadata: @metadata,
+ server_initial_md: @server_initial_md,
+ server_trailing_md: @server_trailing_md)
stub = GRPC::ClientStub.new(@host, :this_channel_is_insecure)
- e = get_responses(stub, run_start_call_first: true)
- expect(e.collect { |r| r }).to eq(@replys)
+ e = get_responses(stub, run_start_call_first: run_start_call_first)
+ expect(e.collect { |r| r }).to eq(@sent_msgs)
th.join
end
+
+ it 'can run start_call before executing the call' do
+ run_op_view_metadata_test(true)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) do |responses|
+ responses.each { |r| p r }
+ end
+ end
+
+ it 'doesnt crash when op_view used after call has finished' do
+ run_op_view_metadata_test(false)
+ check_op_view_of_finished_client_call(
+ @op, @server_initial_md, @server_trailing_md) do |responses|
+ responses.each { |r| p r }
+ end
+ end
end
end
- def run_server_streamer(expected_input, replys, status, **kw)
- wanted_metadata = kw.clone
+ def run_server_streamer(expected_input, replys, status,
+ expected_metadata: {},
+ server_initial_md: {},
+ server_trailing_md: {})
+ wanted_metadata = expected_metadata.clone
wakey_thread do |notifier|
- c = expect_server_to_be_invoked(notifier)
+ c = expect_server_to_be_invoked(
+ notifier, metadata_to_send: server_initial_md)
wanted_metadata.each do |k, v|
expect(c.metadata[k.to_s]).to eq(v)
end
expect(c.remote_read).to eq(expected_input)
replys.each { |r| c.remote_send(r) }
- c.send_status(status, status == @pass ? 'OK' : 'NOK', true)
+ c.send_status(status, status == @pass ? 'OK' : 'NOK', true,
+ metadata: server_trailing_md)
end
end
@@ -472,9 +670,17 @@
end
end
- def run_bidi_streamer_echo_ping_pong(expected_inputs, status, client_starts)
+ def run_bidi_streamer_echo_ping_pong(expected_inputs, status, client_starts,
+ expected_metadata: {},
+ server_initial_md: {},
+ server_trailing_md: {})
+ wanted_metadata = expected_metadata.clone
wakey_thread do |notifier|
- c = expect_server_to_be_invoked(notifier)
+ c = expect_server_to_be_invoked(
+ notifier, metadata_to_send: server_initial_md)
+ wanted_metadata.each do |k, v|
+ expect(c.metadata[k.to_s]).to eq(v)
+ end
expected_inputs.each do |i|
if client_starts
expect(c.remote_read).to eq(i)
@@ -484,33 +690,44 @@
expect(c.remote_read).to eq(i)
end
end
- c.send_status(status, status == @pass ? 'OK' : 'NOK', true)
+ c.send_status(status, status == @pass ? 'OK' : 'NOK', true,
+ metadata: server_trailing_md)
end
end
- def run_client_streamer(expected_inputs, resp, status, **kw)
- wanted_metadata = kw.clone
+ def run_client_streamer(expected_inputs, resp, status,
+ expected_metadata: {},
+ server_initial_md: {},
+ server_trailing_md: {})
+ wanted_metadata = expected_metadata.clone
wakey_thread do |notifier|
- c = expect_server_to_be_invoked(notifier)
+ c = expect_server_to_be_invoked(
+ notifier, metadata_to_send: server_initial_md)
expected_inputs.each { |i| expect(c.remote_read).to eq(i) }
wanted_metadata.each do |k, v|
expect(c.metadata[k.to_s]).to eq(v)
end
c.remote_send(resp)
- c.send_status(status, status == @pass ? 'OK' : 'NOK', true)
+ c.send_status(status, status == @pass ? 'OK' : 'NOK', true,
+ metadata: server_trailing_md)
end
end
- def run_request_response(expected_input, resp, status, **kw)
- wanted_metadata = kw.clone
+ def run_request_response(expected_input, resp, status,
+ expected_metadata: {},
+ server_initial_md: {},
+ server_trailing_md: {})
+ wanted_metadata = expected_metadata.clone
wakey_thread do |notifier|
- c = expect_server_to_be_invoked(notifier)
+ c = expect_server_to_be_invoked(
+ notifier, metadata_to_send: server_initial_md)
expect(c.remote_read).to eq(expected_input)
wanted_metadata.each do |k, v|
expect(c.metadata[k.to_s]).to eq(v)
end
c.remote_send(resp)
- c.send_status(status, status == @pass ? 'OK' : 'NOK', true)
+ c.send_status(status, status == @pass ? 'OK' : 'NOK', true,
+ metadata: server_trailing_md)
end
end
@@ -528,13 +745,13 @@
@server.add_http2_port('0.0.0.0:0', :this_port_is_insecure)
end
- def expect_server_to_be_invoked(notifier)
+ def expect_server_to_be_invoked(notifier, metadata_to_send: nil)
@server.start
notifier.notify(nil)
recvd_rpc = @server.request_call
recvd_call = recvd_rpc.call
recvd_call.metadata = recvd_rpc.metadata
- recvd_call.run_batch(SEND_INITIAL_METADATA => nil)
+ recvd_call.run_batch(SEND_INITIAL_METADATA => metadata_to_send)
GRPC::ActiveCall.new(recvd_call, noop, noop, INFINITE_FUTURE,
metadata_received: true)
end
diff --git a/src/ruby/spec/generic/rpc_desc_spec.rb b/src/ruby/spec/generic/rpc_desc_spec.rb
index 100e9e8..be578c4 100644
--- a/src/ruby/spec/generic/rpc_desc_spec.rb
+++ b/src/ruby/spec/generic/rpc_desc_spec.rb
@@ -38,14 +38,14 @@
shared_examples 'it handles errors' do
it 'sends the specified status if BadStatus is raised' do
- expect(@call).to receive(:remote_read).once.and_return(Object.new)
+ expect(@call).to receive(:read_unary_request).once.and_return(Object.new)
expect(@call).to receive(:send_status).once.with(@bs_code, 'NOK', false,
metadata: {})
this_desc.run_server_method(@call, method(:bad_status))
end
it 'sends status UNKNOWN if other StandardErrors are raised' do
- expect(@call).to receive(:remote_read).once.and_return(Object.new)
+ expect(@call).to receive(:read_unary_request).once.and_return(Object.new)
expect(@call).to receive(:send_status).once.with(UNKNOWN,
arg_error_msg,
false, metadata: {})
@@ -53,7 +53,7 @@
end
it 'absorbs CallError with no further action' do
- expect(@call).to receive(:remote_read).once.and_raise(CallError)
+ expect(@call).to receive(:read_unary_request).once.and_raise(CallError)
blk = proc do
this_desc.run_server_method(@call, method(:fake_reqresp))
end
@@ -75,7 +75,7 @@
it 'sends a response and closes the stream if there no errors' do
req = Object.new
- expect(@call).to receive(:remote_read).once.and_return(req)
+ expect(@call).to receive(:read_unary_request).once.and_return(req)
expect(@call).to receive(:output_metadata).once.and_return(fake_md)
expect(@call).to receive(:server_unary_response).once
.with(@ok_response, trailing_metadata: fake_md)
@@ -133,7 +133,7 @@
it 'sends a response and closes the stream if there no errors' do
req = Object.new
- expect(@call).to receive(:remote_read).once.and_return(req)
+ expect(@call).to receive(:read_unary_request).once.and_return(req)
expect(@call).to receive(:remote_send).twice.with(@ok_response)
expect(@call).to receive(:output_metadata).and_return(fake_md)
expect(@call).to receive(:send_status).once.with(OK, 'OK', true,
diff --git a/src/ruby/spec/generic/rpc_server_spec.rb b/src/ruby/spec/generic/rpc_server_spec.rb
index 9633a82..e0646f4 100644
--- a/src/ruby/spec/generic/rpc_server_spec.rb
+++ b/src/ruby/spec/generic/rpc_server_spec.rb
@@ -111,6 +111,47 @@
SlowStub = SlowService.rpc_stub_class
+# a test service that hangs onto call objects
+# and uses them after the server-side call has been
+# finished
+class CheckCallAfterFinishedService
+ include GRPC::GenericService
+ rpc :an_rpc, EchoMsg, EchoMsg
+ rpc :a_client_streaming_rpc, stream(EchoMsg), EchoMsg
+ rpc :a_server_streaming_rpc, EchoMsg, stream(EchoMsg)
+ rpc :a_bidi_rpc, stream(EchoMsg), stream(EchoMsg)
+ attr_reader :server_side_call
+
+ def an_rpc(req, call)
+ fail 'shouldnt reuse service' unless @server_side_call.nil?
+ @server_side_call = call
+ req
+ end
+
+ def a_client_streaming_rpc(call)
+ fail 'shouldnt reuse service' unless @server_side_call.nil?
+ @server_side_call = call
+ # iterate through requests so call can complete
+ call.each_remote_read.each { |r| p r }
+ EchoMsg.new
+ end
+
+ def a_server_streaming_rpc(_, call)
+ fail 'shouldnt reuse service' unless @server_side_call.nil?
+ @server_side_call = call
+ [EchoMsg.new, EchoMsg.new]
+ end
+
+ def a_bidi_rpc(requests, call)
+ fail 'shouldnt reuse service' unless @server_side_call.nil?
+ @server_side_call = call
+ requests.each { |r| p r }
+ [EchoMsg.new, EchoMsg.new]
+ end
+end
+
+CheckCallAfterFinishedServiceStub = CheckCallAfterFinishedService.rpc_stub_class
+
describe GRPC::RpcServer do
RpcServer = GRPC::RpcServer
StatusCodes = GRPC::Core::StatusCodes
@@ -505,5 +546,109 @@
t.join
end
end
+
+ context 'when call objects are used after calls have completed' do
+ before(:each) do
+ server_opts = {
+ poll_period: 1
+ }
+ @srv = RpcServer.new(**server_opts)
+ alt_port = @srv.add_http2_port('0.0.0.0:0', :this_port_is_insecure)
+ @alt_host = "0.0.0.0:#{alt_port}"
+
+ @service = CheckCallAfterFinishedService.new
+ @srv.handle(@service)
+ @srv_thd = Thread.new { @srv.run }
+ @srv.wait_till_running
+ end
+
+ # check that the server-side call is still in a usable state even
+ # after it has finished
+ def check_single_req_view_of_finished_call(call)
+ common_check_of_finished_server_call(call)
+
+ expect(call.peer).to be_a(String)
+ expect(call.peer_cert).to be(nil)
+ end
+
+ def check_multi_req_view_of_finished_call(call)
+ common_check_of_finished_server_call(call)
+
+ expect do
+ call.each_remote_read.each { |r| p r }
+ end.to raise_error(GRPC::Core::CallError)
+ end
+
+ def common_check_of_finished_server_call(call)
+ expect do
+ call.merge_metadata_to_send({})
+ end.to raise_error(RuntimeError)
+
+ expect do
+ call.send_initial_metadata
+ end.to_not raise_error
+
+ expect(call.cancelled?).to be(false)
+ expect(call.metadata).to be_a(Hash)
+ expect(call.metadata['user-agent']).to be_a(String)
+
+ expect(call.metadata_sent).to be(true)
+ expect(call.output_metadata).to eq({})
+ expect(call.metadata_to_send).to eq({})
+ expect(call.deadline.is_a?(Time)).to be(true)
+ end
+
+ it 'should not crash when call used after an unary call is finished' do
+ req = EchoMsg.new
+ stub = CheckCallAfterFinishedServiceStub.new(@alt_host,
+ :this_channel_is_insecure)
+ resp = stub.an_rpc(req)
+ expect(resp).to be_a(EchoMsg)
+ @srv.stop
+ @srv_thd.join
+
+ check_single_req_view_of_finished_call(@service.server_side_call)
+ end
+
+ it 'should not crash when call used after client streaming finished' do
+ requests = [EchoMsg.new, EchoMsg.new]
+ stub = CheckCallAfterFinishedServiceStub.new(@alt_host,
+ :this_channel_is_insecure)
+ resp = stub.a_client_streaming_rpc(requests)
+ expect(resp).to be_a(EchoMsg)
+ @srv.stop
+ @srv_thd.join
+
+ check_multi_req_view_of_finished_call(@service.server_side_call)
+ end
+
+ it 'should not crash when call used after server streaming finished' do
+ req = EchoMsg.new
+ stub = CheckCallAfterFinishedServiceStub.new(@alt_host,
+ :this_channel_is_insecure)
+ responses = stub.a_server_streaming_rpc(req)
+ responses.each do |r|
+ expect(r).to be_a(EchoMsg)
+ end
+ @srv.stop
+ @srv_thd.join
+
+ check_single_req_view_of_finished_call(@service.server_side_call)
+ end
+
+ it 'should not crash when call used after a bidi call is finished' do
+ requests = [EchoMsg.new, EchoMsg.new]
+ stub = CheckCallAfterFinishedServiceStub.new(@alt_host,
+ :this_channel_is_insecure)
+ responses = stub.a_bidi_rpc(requests)
+ responses.each do |r|
+ expect(r).to be_a(EchoMsg)
+ end
+ @srv.stop
+ @srv_thd.join
+
+ check_multi_req_view_of_finished_call(@service.server_side_call)
+ end
+ end
end
end
diff --git a/src/ruby/spec/testdata/client.key b/src/ruby/spec/testdata/client.key
new file mode 100644
index 0000000..f48d073
--- /dev/null
+++ b/src/ruby/spec/testdata/client.key
@@ -0,0 +1,16 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/src/ruby/spec/testdata/client.pem b/src/ruby/spec/testdata/client.pem
new file mode 100644
index 0000000..e332091
--- /dev/null
+++ b/src/ruby/spec/testdata/client.pem
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----