From b19f181f3e01f346c7b760d75bfe58e53561ddc1 Mon Sep 17 00:00:00 2001
From: murgatroid99 <mlumish@google.com>
Date: Mon, 16 May 2016 12:21:39 -0700
Subject: [PATCH] Avoid using unspecified keyword args where possible

---
 src/ruby/lib/grpc/errors.rb               |  5 +-
 src/ruby/lib/grpc/generic/active_call.rb  | 65 ++++++++---------
 src/ruby/lib/grpc/generic/client_stub.rb  | 85 +++++++++--------------
 src/ruby/lib/grpc/generic/rpc_desc.rb     |  8 +--
 src/ruby/lib/grpc/generic/rpc_server.rb   | 19 ++---
 src/ruby/lib/grpc/generic/service.rb      | 16 ++---
 src/ruby/spec/generic/active_call_spec.rb |  5 +-
 src/ruby/spec/generic/client_stub_spec.rb | 48 +++++++------
 src/ruby/spec/generic/rpc_desc_spec.rb    |  8 +--
 src/ruby/spec/generic/rpc_server_spec.rb  | 60 ++++++----------
 10 files changed, 133 insertions(+), 186 deletions(-)

diff --git a/src/ruby/lib/grpc/errors.rb b/src/ruby/lib/grpc/errors.rb
index a1dd1e3e9d..23b2bb7e12 100644
--- a/src/ruby/lib/grpc/errors.rb
+++ b/src/ruby/lib/grpc/errors.rb
@@ -40,11 +40,12 @@ module GRPC
 
     # @param code [Numeric] the status code
     # @param details [String] the details of the exception
-    def initialize(code, details = 'unknown cause', **kw)
+    # @param metadata [Hash] the error's metadata
+    def initialize(code, details = 'unknown cause', metadata = {})
       super("#{code}:#{details}")
       @code = code
       @details = details
-      @metadata = kw
+      @metadata = metadata
     end
 
     # Converts the exception to a GRPC::Status for use in the networking
diff --git a/src/ruby/lib/grpc/generic/active_call.rb b/src/ruby/lib/grpc/generic/active_call.rb
index fd20a86144..9dc06e6b50 100644
--- a/src/ruby/lib/grpc/generic/active_call.rb
+++ b/src/ruby/lib/grpc/generic/active_call.rb
@@ -45,7 +45,7 @@ class Struct
         # raise BadStatus, propagating the metadata if present.
         md = status.metadata
         with_sym_keys = Hash[md.each_pair.collect { |x, y| [x.to_sym, y] }]
-        fail GRPC::BadStatus.new(status.code, status.details, **with_sym_keys)
+        fail GRPC::BadStatus.new(status.code, status.details, with_sym_keys)
       end
       status
     end
@@ -77,14 +77,15 @@ module GRPC
     #
     # @param call [Call] a call on which to start and invocation
     # @param q [CompletionQueue] the completion queue
-    def self.client_invoke(call, q, **kw)
+    # @param metadata [Hash] the metadata
+    def self.client_invoke(call, q, metadata = {})
       fail(TypeError, '!Core::Call') unless call.is_a? Core::Call
       unless q.is_a? Core::CompletionQueue
         fail(TypeError, '!Core::CompletionQueue')
       end
       metadata_tag = Object.new
       call.run_batch(q, metadata_tag, INFINITE_FUTURE,
-                     SEND_INITIAL_METADATA => kw)
+                     SEND_INITIAL_METADATA => metadata)
       metadata_tag
     end
 
@@ -216,13 +217,12 @@ module GRPC
     # @param details [String] details
     # @param assert_finished [true, false] when true(default), waits for
     # FINISHED.
-    #
-    # == Keyword Arguments ==
-    # any keyword arguments are treated as metadata to be sent to the server
-    # if a keyword value is a list, multiple metadata for it's key are sent
-    def send_status(code = OK, details = '', assert_finished = false, **kw)
+    # @param metadata [Hash] metadata to send to the server. If a value is a
+    # list, mulitple metadata for its key are sent
+    def send_status(code = OK, details = '', assert_finished = false,
+                    metadata: {})
       ops = {
-        SEND_STATUS_FROM_SERVER => Struct::Status.new(code, details, kw)
+        SEND_STATUS_FROM_SERVER => Struct::Status.new(code, details, metadata)
       }
       ops[RECV_CLOSE_ON_SERVER] = nil if assert_finished
       @call.run_batch(@cq, self, INFINITE_FUTURE, ops)
@@ -316,14 +316,12 @@ module GRPC
     # request_response sends a request to a GRPC server, and returns the
     # response.
     #
-    # == Keyword Arguments ==
-    # any keyword arguments are treated as metadata to be sent to the server
-    # if a keyword value is a list, multiple metadata for it's key are sent
-    #
     # @param req [Object] the request sent to the server
+    # @param metadata [Hash] metadata to be sent to the server. If a value is
+    # a list, multiple metadata for its key are sent
     # @return [Object] the response received from the server
-    def request_response(req, **kw)
-      start_call(**kw) unless @started
+    def request_response(req, metadata: {})
+      start_call(metadata) unless @started
       remote_send(req)
       writes_done(false)
       response = remote_read
@@ -342,14 +340,12 @@ module GRPC
     # array of marshallable objects; in typical case it will be an Enumerable
     # that allows dynamic construction of the marshallable objects.
     #
-    # == Keyword Arguments ==
-    # any keyword arguments are treated as metadata to be sent to the server
-    # if a keyword value is a list, multiple metadata for it's key are sent
-    #
     # @param requests [Object] an Enumerable of requests to send
+    # @param metadata [Hash] metadata to be sent to the server. If a value is
+    # a list, multiple metadata for its key are sent
     # @return [Object] the response received from the server
-    def client_streamer(requests, **kw)
-      start_call(**kw) unless @started
+    def client_streamer(requests, metadata: {})
+      start_call(metadata) unless @started
       requests.each { |r| remote_send(r) }
       writes_done(false)
       response = remote_read
@@ -370,15 +366,12 @@ module GRPC
     # it is executed with each response as the argument and no result is
     # returned.
     #
-    # == Keyword Arguments ==
-    # any keyword arguments are treated as metadata to be sent to the server
-    # if a keyword value is a list, multiple metadata for it's key are sent
-    # any keyword arguments are treated as metadata to be sent to the server.
-    #
     # @param req [Object] the request sent to the server
+    # @param metadata [Hash] metadata to be sent to the server. If a value is
+    # a list, multiple metadata for its key are sent
     # @return [Enumerator|nil] a response Enumerator
-    def server_streamer(req, **kw)
-      start_call(**kw) unless @started
+    def server_streamer(req, metadata: {})
+      start_call(metadata) unless @started
       remote_send(req)
       writes_done(false)
       replies = enum_for(:each_remote_read_then_finish)
@@ -412,14 +405,12 @@ module GRPC
     # the_call#writes_done has been called, otherwise the block will loop
     # forever.
     #
-    # == Keyword Arguments ==
-    # any keyword arguments are treated as metadata to be sent to the server
-    # if a keyword value is a list, multiple metadata for it's key are sent
-    #
     # @param requests [Object] an Enumerable of requests to send
+    # @param metadata [Hash] metadata to be sent to the server. If a value is
+    # a list, multiple metadata for its key are sent
     # @return [Enumerator, nil] a response Enumerator
-    def bidi_streamer(requests, **kw, &blk)
-      start_call(**kw) unless @started
+    def bidi_streamer(requests, metadata: {}, &blk)
+      start_call(metadata) unless @started
       bd = BidiCall.new(@call, @cq, @marshal, @unmarshal,
                         metadata_tag: @metadata_tag)
       @metadata_tag = nil  # run_on_client ensures metadata is read
@@ -458,9 +449,11 @@ module GRPC
     private
 
     # Starts the call if not already started
-    def start_call(**kw)
+    # @param metadata [Hash] metadata to be sent to the server. If a value is
+    # a list, multiple metadata for its key are sent
+    def start_call(metadata = {})
       return if @started
-      @metadata_tag = ActiveCall.client_invoke(@call, @cq, **kw)
+      @metadata_tag = ActiveCall.client_invoke(@call, @cq, metadata)
       @started = true
     end
 
diff --git a/src/ruby/lib/grpc/generic/client_stub.rb b/src/ruby/lib/grpc/generic/client_stub.rb
index 12946fe819..cddca13d17 100644
--- a/src/ruby/lib/grpc/generic/client_stub.rb
+++ b/src/ruby/lib/grpc/generic/client_stub.rb
@@ -44,21 +44,21 @@ module GRPC
 
     # setup_channel is used by #initialize to constuct a channel from its
     # arguments.
-    def self.setup_channel(alt_chan, host, creds, **kw)
+    def self.setup_channel(alt_chan, host, creds, channel_args = {})
       unless alt_chan.nil?
         fail(TypeError, '!Channel') unless alt_chan.is_a?(Core::Channel)
         return alt_chan
       end
-      if kw['grpc.primary_user_agent'].nil?
-        kw['grpc.primary_user_agent'] = ''
+      if channel_args['grpc.primary_user_agent'].nil?
+        channel_args['grpc.primary_user_agent'] = ''
       else
-        kw['grpc.primary_user_agent'] += ' '
+        channel_args['grpc.primary_user_agent'] += ' '
       end
-      kw['grpc.primary_user_agent'] += "grpc-ruby/#{VERSION}"
+      channel_args['grpc.primary_user_agent'] += "grpc-ruby/#{VERSION}"
       unless creds.is_a?(Core::ChannelCredentials) || creds.is_a?(Symbol)
         fail(TypeError, '!ChannelCredentials or Symbol')
       end
-      Core::Channel.new(host, kw, creds)
+      Core::Channel.new(host, channel_args, creds)
     end
 
     # Allows users of the stub to modify the propagate mask.
@@ -96,15 +96,16 @@ module GRPC
     #     :this_channel_is_insecure
     # @param channel_override [Core::Channel] a pre-created channel
     # @param timeout [Number] the default timeout to use in requests
-    # @param kw [KeywordArgs]the channel arguments
+    # @param channel_args [Hash] the channel arguments
     def initialize(host, q, creds,
                    channel_override: nil,
                    timeout: nil,
                    propagate_mask: nil,
-                   **kw)
+                   channel_args: {})
       fail(TypeError, '!CompletionQueue') unless q.is_a?(Core::CompletionQueue)
-      @ch = ClientStub.setup_channel(channel_override, host, creds, **kw)
-      alt_host = kw[Core::Channel::SSL_TARGET]
+      @ch = ClientStub.setup_channel(channel_override, host, creds,
+                                     channel_args)
+      alt_host = channel_args[Core::Channel::SSL_TARGET]
       @host = alt_host.nil? ? host : alt_host
       @propagate_mask = propagate_mask
       @timeout = timeout.nil? ? DEFAULT_TIMEOUT : timeout
@@ -135,42 +136,35 @@ module GRPC
     # If return_op is true, the call returns an Operation, calling execute
     # on the Operation returns the response.
     #
-    # == Keyword Args ==
-    #
-    # Unspecified keyword arguments are treated as metadata to be sent to the
-    # server.
-    #
     # @param method [String] the RPC method to call on the GRPC server
     # @param req [Object] the request sent to the server
     # @param marshal [Function] f(obj)->string that marshals requests
     # @param unmarshal [Function] f(string)->obj that unmarshals responses
-    # @param timeout [Numeric] (optional) the max completion time in seconds
     # @param deadline [Time] (optional) the time the request should complete
+    # @param return_op [true|false] return an Operation if true
     # @param parent [Core::Call] a prior call whose reserved metadata
     #   will be propagated by this one.
     # @param credentials [Core::CallCredentials] credentials to use when making
     #   the call
-    # @param return_op [true|false] return an Operation if true
+    # @param metadata [Hash] metadata to be sent to the server
     # @return [Object] the response received from the server
     def request_response(method, req, marshal, unmarshal,
                          deadline: nil,
-                         timeout: nil,
                          return_op: false,
                          parent: nil,
                          credentials: nil,
-                         **kw)
+                         metadata: {})
       c = new_active_call(method, marshal, unmarshal,
                           deadline: deadline,
-                          timeout: timeout,
                           parent: parent,
                           credentials: credentials)
-      return c.request_response(req, **kw) unless return_op
+      return c.request_response(req, metadata: metadata) unless return_op
 
       # return the operation view of the active_call; define #execute as a
       # new method for this instance that invokes #request_response.
       op = c.operation
       op.define_singleton_method(:execute) do
-        c.request_response(req, **kw)
+        c.request_response(req, metadata: metadata)
       end
       op
     end
@@ -205,42 +199,35 @@ module GRPC
     #
     # If return_op is true, the call returns the response.
     #
-    # == Keyword Args ==
-    #
-    # Unspecified keyword arguments are treated as metadata to be sent to the
-    # server.
-    #
     # @param method [String] the RPC method to call on the GRPC server
     # @param requests [Object] an Enumerable of requests to send
     # @param marshal [Function] f(obj)->string that marshals requests
     # @param unmarshal [Function] f(string)->obj that unmarshals responses
-    # @param timeout [Numeric] (optional) the max completion time in seconds
     # @param deadline [Time] (optional) the time the request should complete
     # @param return_op [true|false] return an Operation if true
     # @param parent [Core::Call] a prior call whose reserved metadata
     #   will be propagated by this one.
     # @param credentials [Core::CallCredentials] credentials to use when making
     #   the call
+    # @param metadata [Hash] metadata to be sent to the server
     # @return [Object|Operation] the response received from the server
     def client_streamer(method, requests, marshal, unmarshal,
                         deadline: nil,
-                        timeout: nil,
                         return_op: false,
                         parent: nil,
                         credentials: nil,
-                        **kw)
+                        metadata: {})
       c = new_active_call(method, marshal, unmarshal,
                           deadline: deadline,
-                          timeout: timeout,
                           parent: parent,
                           credentials: credentials)
-      return c.client_streamer(requests, **kw) unless return_op
+      return c.client_streamer(requests, metadata: metadata) unless return_op
 
       # return the operation view of the active_call; define #execute as a
       # new method for this instance that invokes #client_streamer.
       op = c.operation
       op.define_singleton_method(:execute) do
-        c.client_streamer(requests, **kw)
+        c.client_streamer(requests, metadata: metadata)
       end
       op
     end
@@ -292,35 +279,33 @@ module GRPC
     # @param req [Object] the request sent to the server
     # @param marshal [Function] f(obj)->string that marshals requests
     # @param unmarshal [Function] f(string)->obj that unmarshals responses
-    # @param timeout [Numeric] (optional) the max completion time in seconds
     # @param deadline [Time] (optional) the time the request should complete
     # @param return_op [true|false]return an Operation if true
     # @param parent [Core::Call] a prior call whose reserved metadata
     #   will be propagated by this one.
     # @param credentials [Core::CallCredentials] credentials to use when making
     #   the call
+    # @param metadata [Hash] metadata to be sent to the server
     # @param blk [Block] when provided, is executed for each response
     # @return [Enumerator|Operation|nil] as discussed above
     def server_streamer(method, req, marshal, unmarshal,
                         deadline: nil,
-                        timeout: nil,
                         return_op: false,
                         parent: nil,
                         credentials: nil,
-                        **kw,
+                        metadata: {},
                         &blk)
       c = new_active_call(method, marshal, unmarshal,
                           deadline: deadline,
-                          timeout: timeout,
                           parent: parent,
                           credentials: credentials)
-      return c.server_streamer(req, **kw, &blk) unless return_op
+      return c.server_streamer(req, metadata: metadata, &blk) unless return_op
 
       # return the operation view of the active_call; define #execute
       # as a new method for this instance that invokes #server_streamer
       op = c.operation
       op.define_singleton_method(:execute) do
-        c.server_streamer(req, **kw, &blk)
+        c.server_streamer(req, metadata: metadata, &blk)
       end
       op
     end
@@ -391,11 +376,6 @@ module GRPC
     # * the deadline is exceeded
     #
     #
-    # == Keyword Args ==
-    #
-    # Unspecified keyword arguments are treated as metadata to be sent to the
-    # server.
-    #
     # == Return Value ==
     #
     # if the return_op is false, the return value is an Enumerator of the
@@ -411,36 +391,35 @@ module GRPC
     # @param requests [Object] an Enumerable of requests to send
     # @param marshal [Function] f(obj)->string that marshals requests
     # @param unmarshal [Function] f(string)->obj that unmarshals responses
-    # @param timeout [Numeric] (optional) the max completion time in seconds
     # @param deadline [Time] (optional) the time the request should complete
     # @param parent [Core::Call] a prior call whose reserved metadata
     #   will be propagated by this one.
     # @param credentials [Core::CallCredentials] credentials to use when making
     #   the call
     # @param return_op [true|false] return an Operation if true
+    # @param metadata [Hash] metadata to be sent to the server
     # @param blk [Block] when provided, is executed for each response
     # @return [Enumerator|nil|Operation] as discussed above
     def bidi_streamer(method, requests, marshal, unmarshal,
                       deadline: nil,
-                      timeout: nil,
                       return_op: false,
                       parent: nil,
                       credentials: nil,
-                      **kw,
+                      metadata: {},
                       &blk)
       c = new_active_call(method, marshal, unmarshal,
                           deadline: deadline,
-                          timeout: timeout,
                           parent: parent,
                           credentials: credentials)
 
-      return c.bidi_streamer(requests, **kw, &blk) unless return_op
+      return c.bidi_streamer(requests, metadata: metadata,
+                             &blk) unless return_op
 
       # return the operation view of the active_call; define #execute
       # as a new method for this instance that invokes #bidi_streamer
       op = c.operation
       op.define_singleton_method(:execute) do
-        c.bidi_streamer(requests, **kw, &blk)
+        c.bidi_streamer(requests, metadata: metadata, &blk)
       end
       op
     end
@@ -457,12 +436,10 @@ module GRPC
     # @param timeout [TimeConst]
     def new_active_call(method, marshal, unmarshal,
                         deadline: nil,
-                        timeout: nil,
                         parent: nil,
                         credentials: nil)
-      if deadline.nil?
-        deadline = from_relative_time(timeout.nil? ? @timeout : timeout)
-      end
+
+      deadline = from_relative_time(@timeout) if deadline.nil?
       # Provide each new client call with its own completion queue
       call_queue = Core::CompletionQueue.new
       call = @ch.create_call(call_queue,
diff --git a/src/ruby/lib/grpc/generic/rpc_desc.rb b/src/ruby/lib/grpc/generic/rpc_desc.rb
index cc21ffd3c5..5dc9202f2e 100644
--- a/src/ruby/lib/grpc/generic/rpc_desc.rb
+++ b/src/ruby/lib/grpc/generic/rpc_desc.rb
@@ -80,12 +80,12 @@ module GRPC
       else  # is a bidi_stream
         active_call.run_server_bidi(mth)
       end
-      send_status(active_call, OK, 'OK', **active_call.output_metadata)
+      send_status(active_call, OK, 'OK', active_call.output_metadata)
     rescue BadStatus => e
       # this is raised by handlers that want GRPC to send an application error
       # code and detail message and some additional app-specific metadata.
       GRPC.logger.debug("app err:#{active_call}, status:#{e.code}:#{e.details}")
-      send_status(active_call, e.code, e.details, **e.metadata)
+      send_status(active_call, e.code, e.details, e.metadata)
     rescue Core::CallError => e
       # This is raised by GRPC internals but should rarely, if ever happen.
       # Log it, but don't notify the other endpoint..
@@ -135,10 +135,10 @@ module GRPC
       "##{mth.name}: bad arg count; got:#{mth.arity}, want:#{want}, #{msg}"
     end
 
-    def send_status(active_client, code, details, **kw)
+    def send_status(active_client, code, details, metadata = {})
       details = 'Not sure why' if details.nil?
       GRPC.logger.debug("Sending status  #{code}:#{details}")
-      active_client.send_status(code, details, code == OK, **kw)
+      active_client.send_status(code, details, code == OK, metadata)
     rescue StandardError => e
       GRPC.logger.warn("Could not send status #{code}:#{details}")
       GRPC.logger.warn(e)
diff --git a/src/ruby/lib/grpc/generic/rpc_server.rb b/src/ruby/lib/grpc/generic/rpc_server.rb
index 238aaa9656..fdb7d7ce55 100644
--- a/src/ruby/lib/grpc/generic/rpc_server.rb
+++ b/src/ruby/lib/grpc/generic/rpc_server.rb
@@ -170,14 +170,6 @@ module GRPC
       alt_cq
     end
 
-    # setup_srv is used by #initialize to constuct a Core::Server from its
-    # arguments.
-    def self.setup_srv(alt_srv, cq, **kw)
-      return Core::Server.new(cq, kw) if alt_srv.nil?
-      fail(TypeError, '!Server') unless alt_srv.is_a? Core::Server
-      alt_srv
-    end
-
     # setup_connect_md_proc is used by #initialize to validate the
     # connect_md_proc.
     def self.setup_connect_md_proc(a_proc)
@@ -194,9 +186,6 @@ module GRPC
     # instance, however other arbitrary are allowed and when present are used
     # to configure the listeninng connection set up by the RpcServer.
     #
-    # * server_override: which if passed must be a [GRPC::Core::Server].  When
-    # present.
-    #
     # * poll_period: when present, the server polls for new events with this
     # period
     #
@@ -218,13 +207,15 @@ module GRPC
     # when non-nil is a proc for determining metadata to to send back the client
     # on receiving an invocation req.  The proc signature is:
     # {key: val, ..} func(method_name, {key: val, ...})
+    #
+    # * server_args:
+    # A server arguments hash to be passed down to the underlying core server
     def initialize(pool_size:DEFAULT_POOL_SIZE,
                    max_waiting_requests:DEFAULT_MAX_WAITING_REQUESTS,
                    poll_period:DEFAULT_POLL_PERIOD,
                    completion_queue_override:nil,
-                   server_override:nil,
                    connect_md_proc:nil,
-                   **kw)
+                   server_args:{})
       @connect_md_proc = RpcServer.setup_connect_md_proc(connect_md_proc)
       @cq = RpcServer.setup_cq(completion_queue_override)
       @max_waiting_requests = max_waiting_requests
@@ -236,7 +227,7 @@ module GRPC
       # running_state can take 4 values: :not_started, :running, :stopping, and
       # :stopped. State transitions can only proceed in that order.
       @running_state = :not_started
-      @server = RpcServer.setup_srv(server_override, @cq, **kw)
+      @server = Core::Server.new(cq, server_args)
     end
 
     # stops a running server
diff --git a/src/ruby/lib/grpc/generic/service.rb b/src/ruby/lib/grpc/generic/service.rb
index 0a166e823e..f30242ee80 100644
--- a/src/ruby/lib/grpc/generic/service.rb
+++ b/src/ruby/lib/grpc/generic/service.rb
@@ -179,24 +179,24 @@ module GRPC
             unmarshal = desc.unmarshal_proc(:output)
             route = "/#{route_prefix}/#{name}"
             if desc.request_response?
-              define_method(mth_name) do |req, **kw|
+              define_method(mth_name) do |req, metadata = {}|
                 GRPC.logger.debug("calling #{@host}:#{route}")
-                request_response(route, req, marshal, unmarshal, **kw)
+                request_response(route, req, marshal, unmarshal, metadata)
               end
             elsif desc.client_streamer?
-              define_method(mth_name) do |reqs, **kw|
+              define_method(mth_name) do |reqs, metadata = {}|
                 GRPC.logger.debug("calling #{@host}:#{route}")
-                client_streamer(route, reqs, marshal, unmarshal, **kw)
+                client_streamer(route, reqs, marshal, unmarshal, metadata)
               end
             elsif desc.server_streamer?
-              define_method(mth_name) do |req, **kw, &blk|
+              define_method(mth_name) do |req, metadata = {}, &blk|
                 GRPC.logger.debug("calling #{@host}:#{route}")
-                server_streamer(route, req, marshal, unmarshal, **kw, &blk)
+                server_streamer(route, req, marshal, unmarshal, metadata, &blk)
               end
             else  # is a bidi_stream
-              define_method(mth_name) do |reqs, **kw, &blk|
+              define_method(mth_name) do |reqs, metadata = {}, &blk|
                 GRPC.logger.debug("calling #{@host}:#{route}")
-                bidi_streamer(route, reqs, marshal, unmarshal, **kw, &blk)
+                bidi_streamer(route, reqs, marshal, unmarshal, metadata, &blk)
               end
             end
           end
diff --git a/src/ruby/spec/generic/active_call_spec.rb b/src/ruby/spec/generic/active_call_spec.rb
index c0181e21fb..7bbb35ad3a 100644
--- a/src/ruby/spec/generic/active_call_spec.rb
+++ b/src/ruby/spec/generic/active_call_spec.rb
@@ -159,9 +159,10 @@ describe GRPC::ActiveCall do
   end
 
   describe '#client_invoke' do
-    it 'sends keywords as metadata to the server when the are present' do
+    it 'sends metadata to the server when present' do
       call = make_test_call
-      ActiveCall.client_invoke(call, @client_queue, k1: 'v1', k2: 'v2')
+      ActiveCall.client_invoke(call, @client_queue,
+                               metadata: { k1: 'v1', k2: 'v2' })
       recvd_rpc =  @server.request_call(@server_queue, @server_tag, deadline)
       recvd_call = recvd_rpc.call
       expect(recvd_call).to_not be_nil
diff --git a/src/ruby/spec/generic/client_stub_spec.rb b/src/ruby/spec/generic/client_stub_spec.rb
index dd8e2e9f7a..848bae9ea0 100644
--- a/src/ruby/spec/generic/client_stub_spec.rb
+++ b/src/ruby/spec/generic/client_stub_spec.rb
@@ -68,15 +68,7 @@ describe 'ClientStub' do
   describe '#new' do
     let(:fake_host) { 'localhost:0' }
     it 'can be created from a host and args' do
-      opts = { a_channel_arg: 'an_arg' }
-      blk = proc do
-        GRPC::ClientStub.new(fake_host, @cq, :this_channel_is_insecure, **opts)
-      end
-      expect(&blk).not_to raise_error
-    end
-
-    it 'can be created with a default deadline' do
-      opts = { a_channel_arg: 'an_arg', deadline: 5 }
+      opts = { channel_args: { a_channel_arg: 'an_arg' } }
       blk = proc do
         GRPC::ClientStub.new(fake_host, @cq, :this_channel_is_insecure, **opts)
       end
@@ -84,7 +76,10 @@ describe 'ClientStub' do
     end
 
     it 'can be created with an channel override' do
-      opts = { a_channel_arg: 'an_arg', channel_override: @ch }
+      opts = {
+        channel_args: { a_channel_arg: 'an_arg' },
+        channel_override: @ch
+      }
       blk = proc do
         GRPC::ClientStub.new(fake_host, @cq, :this_channel_is_insecure, **opts)
       end
@@ -93,7 +88,10 @@ describe 'ClientStub' do
 
     it 'cannot be created with a bad channel override' do
       blk = proc do
-        opts = { a_channel_arg: 'an_arg', channel_override: Object.new }
+        opts = {
+          channel_args: { a_channel_arg: 'an_arg' },
+          channel_override: Object.new
+        }
         GRPC::ClientStub.new(fake_host, @cq, :this_channel_is_insecure, **opts)
       end
       expect(&blk).to raise_error
@@ -101,7 +99,7 @@ describe 'ClientStub' do
 
     it 'cannot be created with bad credentials' do
       blk = proc do
-        opts = { a_channel_arg: 'an_arg' }
+        opts = { channel_args: { a_channel_arg: 'an_arg' } }
         GRPC::ClientStub.new(fake_host, @cq, Object.new, **opts)
       end
       expect(&blk).to raise_error
@@ -111,8 +109,10 @@ describe 'ClientStub' do
       certs = load_test_certs
       blk = proc do
         opts = {
-          GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr',
-          a_channel_arg: 'an_arg'
+          channel_args: {
+            GRPC::Core::Channel::SSL_TARGET => 'foo.test.google.fr',
+            a_channel_arg: 'an_arg'
+          }
         }
         creds = GRPC::Core::ChannelCredentials.new(certs[0], nil, nil)
         GRPC::ClientStub.new(fake_host, @cq, creds,  **opts)
@@ -140,7 +140,7 @@ describe 'ClientStub' do
         server_port = create_test_server
         host = "localhost:#{server_port}"
         th = run_request_response(@sent_msg, @resp, @pass,
-                                  k1: 'v1', k2: 'v2')
+                                  metadata: { k1: 'v1', k2: 'v2' })
         stub = GRPC::ClientStub.new(host, @cq, :this_channel_is_insecure)
         expect(get_response(stub)).to eq(@resp)
         th.join
@@ -172,7 +172,7 @@ describe 'ClientStub' do
     describe 'without a call operation' do
       def get_response(stub)
         stub.request_response(@method, @sent_msg, noop, noop,
-                              k1: 'v1', k2: 'v2')
+                              metadata: { k1: 'v1', k2: 'v2' })
       end
 
       it_behaves_like 'request response'
@@ -181,7 +181,8 @@ describe 'ClientStub' do
     describe 'via a call operation' do
       def get_response(stub)
         op = stub.request_response(@method, @sent_msg, noop, noop,
-                                   return_op: true, k1: 'v1', k2: 'v2')
+                                   return_op: true,
+                                   metadata: { k1: 'v1', k2: 'v2' })
         expect(op).to be_a(GRPC::ActiveCall::Operation)
         op.execute
       end
@@ -196,7 +197,7 @@ describe 'ClientStub' do
         server_port = create_test_server
         host = "localhost:#{server_port}"
         @stub = GRPC::ClientStub.new(host, @cq, :this_channel_is_insecure)
-        @options = { k1: 'v1', k2: 'v2' }
+        @options = { metadata: { k1: 'v1', k2: 'v2' } }
         @sent_msgs = Array.new(3) { |i| 'msg_' + (i + 1).to_s }
         @resp = 'a_reply'
       end
@@ -208,7 +209,7 @@ describe 'ClientStub' do
       end
 
       it 'should send metadata to the server ok' do
-        th = run_client_streamer(@sent_msgs, @resp, @pass, @options)
+        th = run_client_streamer(@sent_msgs, @resp, @pass, **@options)
         expect(get_response(@stub)).to eq(@resp)
         th.join
       end
@@ -231,7 +232,7 @@ describe 'ClientStub' do
 
     describe 'without a call operation' do
       def get_response(stub)
-        stub.client_streamer(@method, @sent_msgs, noop, noop, @options)
+        stub.client_streamer(@method, @sent_msgs, noop, noop, **@options)
       end
 
       it_behaves_like 'client streaming'
@@ -240,7 +241,7 @@ describe 'ClientStub' do
     describe 'via a call operation' do
       def get_response(stub)
         op = stub.client_streamer(@method, @sent_msgs, noop, noop,
-                                  @options.merge(return_op: true))
+                                  return_op: true, **@options)
         expect(op).to be_a(GRPC::ActiveCall::Operation)
         op.execute
       end
@@ -301,7 +302,8 @@ describe 'ClientStub' do
     describe 'via a call operation' do
       def get_responses(stub)
         op = stub.server_streamer(@method, @sent_msg, noop, noop,
-                                  return_op: true, k1: 'v1', k2: 'v2')
+                                  return_op: true,
+                                  metadata: { k1: 'v1', k2: 'v2' })
         expect(op).to be_a(GRPC::ActiveCall::Operation)
         e = op.execute
         expect(e).to be_a(Enumerator)
@@ -383,7 +385,7 @@ describe 'ClientStub' do
         stub = GRPC::ClientStub.new(@host, @cq, :this_channel_is_insecure)
         blk = proc do
           e = stub.bidi_streamer(@method, @sent_msgs, noop, noop,
-                                 timeout: 0.001)
+                                 deadline: from_relative_time(0.001))
           e.collect { |r| r }
         end
         expect(&blk).to raise_error GRPC::BadStatus, /Deadline Exceeded/
diff --git a/src/ruby/spec/generic/rpc_desc_spec.rb b/src/ruby/spec/generic/rpc_desc_spec.rb
index 083632a080..5f9ca2579a 100644
--- a/src/ruby/spec/generic/rpc_desc_spec.rb
+++ b/src/ruby/spec/generic/rpc_desc_spec.rb
@@ -93,7 +93,7 @@ describe GRPC::RpcDesc do
         expect(@call).to receive(:remote_send).once.with(@ok_response)
         expect(@call).to receive(:output_metadata).and_return(fake_md)
         expect(@call).to receive(:send_status).once.with(OK, 'OK', true,
-                                                         **fake_md)
+                                                         fake_md)
         this_desc.run_server_method(@call, method(:fake_reqresp))
       end
     end
@@ -128,7 +128,7 @@ describe GRPC::RpcDesc do
         expect(@call).to receive(:remote_send).once.with(@ok_response)
         expect(@call).to receive(:output_metadata).and_return(fake_md)
         expect(@call).to receive(:send_status).once.with(OK, 'OK', true,
-                                                         **fake_md)
+                                                         fake_md)
         @client_streamer.run_server_method(@call, method(:fake_clstream))
       end
     end
@@ -148,7 +148,7 @@ describe GRPC::RpcDesc do
         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,
-                                                         **fake_md)
+                                                         fake_md)
         @server_streamer.run_server_method(@call, method(:fake_svstream))
       end
     end
@@ -180,7 +180,7 @@ describe GRPC::RpcDesc do
         expect(@call).to receive(:run_server_bidi)
         expect(@call).to receive(:output_metadata).and_return(fake_md)
         expect(@call).to receive(:send_status).once.with(OK, 'OK', true,
-                                                         **fake_md)
+                                                         fake_md)
         @bidi_streamer.run_server_method(@call, method(:fake_bidistream))
       end
     end
diff --git a/src/ruby/spec/generic/rpc_server_spec.rb b/src/ruby/spec/generic/rpc_server_spec.rb
index 2a42736237..b969f0c2c4 100644
--- a/src/ruby/spec/generic/rpc_server_spec.rb
+++ b/src/ruby/spec/generic/rpc_server_spec.rb
@@ -99,7 +99,7 @@ class FailingService
   end
 
   def an_rpc(_req, _call)
-    fail GRPC::BadStatus.new(@code, @details, **@md)
+    fail GRPC::BadStatus.new(@code, @details, @md)
   end
 end
 
@@ -137,16 +137,11 @@ describe GRPC::RpcServer do
     @noop = proc { |x| x }
 
     @server_queue = GRPC::Core::CompletionQueue.new
-    server_host = '0.0.0.0:0'
-    @server = GRPC::Core::Server.new(@server_queue, nil)
-    server_port = @server.add_http2_port(server_host, :this_port_is_insecure)
-    @host = "localhost:#{server_port}"
-    @ch = GRPC::Core::Channel.new(@host, nil, :this_channel_is_insecure)
   end
 
   describe '#new' do
     it 'can be created with just some args' do
-      opts = { a_channel_arg: 'an_arg' }
+      opts = { server_args: { a_channel_arg: 'an_arg' } }
       blk = proc do
         RpcServer.new(**opts)
       end
@@ -154,7 +149,7 @@ describe GRPC::RpcServer do
     end
 
     it 'can be created with a default deadline' do
-      opts = { a_channel_arg: 'an_arg', deadline: 5 }
+      opts = { server_args: { a_channel_arg: 'an_arg' }, deadline: 5 }
       blk = proc do
         RpcServer.new(**opts)
       end
@@ -163,7 +158,7 @@ describe GRPC::RpcServer do
 
     it 'can be created with a completion queue override' do
       opts = {
-        a_channel_arg: 'an_arg',
+        server_args: { a_channel_arg: 'an_arg' },
         completion_queue_override: @server_queue
       }
       blk = proc do
@@ -175,7 +170,7 @@ describe GRPC::RpcServer do
     it 'cannot be created with a bad completion queue override' do
       blk = proc do
         opts = {
-          a_channel_arg: 'an_arg',
+          server_args: { a_channel_arg: 'an_arg' },
           completion_queue_override: Object.new
         }
         RpcServer.new(**opts)
@@ -186,38 +181,20 @@ describe GRPC::RpcServer do
     it 'cannot be created with invalid ServerCredentials' do
       blk = proc do
         opts = {
-          a_channel_arg: 'an_arg',
+          server_args: { a_channel_arg: 'an_arg' },
           creds: Object.new
         }
         RpcServer.new(**opts)
       end
       expect(&blk).to raise_error
     end
-
-    it 'can be created with a server override' do
-      opts = { a_channel_arg: 'an_arg', server_override: @server }
-      blk = proc do
-        RpcServer.new(**opts)
-      end
-      expect(&blk).not_to raise_error
-    end
-
-    it 'cannot be created with a bad server override' do
-      blk = proc do
-        opts = {
-          a_channel_arg: 'an_arg',
-          server_override: Object.new
-        }
-        RpcServer.new(**opts)
-      end
-      expect(&blk).to raise_error
-    end
   end
 
   describe '#stopped?' do
     before(:each) do
-      opts = { a_channel_arg: 'an_arg', poll_period: 1.5 }
+      opts = { server_args: { a_channel_arg: 'an_arg' }, poll_period: 1.5 }
       @srv = RpcServer.new(**opts)
+      @srv.add_http2_port('0.0.0.0', :this_port_is_insecure)
     end
 
     it 'starts out false' do
@@ -245,28 +222,30 @@ describe GRPC::RpcServer do
 
   describe '#running?' do
     it 'starts out false' do
-      opts = { a_channel_arg: 'an_arg', server_override: @server }
+      opts = {
+        server_args: { a_channel_arg: 'an_arg' }
+      }
       r = RpcServer.new(**opts)
       expect(r.running?).to be(false)
     end
 
     it 'is false if run is called with no services registered', server: true do
       opts = {
-        a_channel_arg: 'an_arg',
-        poll_period: 2,
-        server_override: @server
+        server_args: { a_channel_arg: 'an_arg' },
+        poll_period: 2
       }
       r = RpcServer.new(**opts)
+      r.add_http2_port('0.0.0.0', :this_port_is_insecure)
       expect { r.run }.to raise_error(RuntimeError)
     end
 
     it 'is true after run is called with a registered service' do
       opts = {
-        a_channel_arg: 'an_arg',
-        poll_period: 2.5,
-        server_override: @server
+        server_args: { a_channel_arg: 'an_arg' },
+        poll_period: 2.5
       }
       r = RpcServer.new(**opts)
+      r.add_http2_port('0.0.0.0', :this_port_is_insecure)
       r.handle(EchoService)
       t = Thread.new { r.run }
       r.wait_till_running
@@ -280,6 +259,7 @@ describe GRPC::RpcServer do
     before(:each) do
       @opts = { a_channel_arg: 'an_arg', poll_period: 1 }
       @srv = RpcServer.new(**@opts)
+      @srv.add_http2_port('0.0.0.0', :this_port_is_insecure)
     end
 
     it 'raises if #run has already been called' do
@@ -322,11 +302,13 @@ describe GRPC::RpcServer do
     context 'with no connect_metadata' do
       before(:each) do
         server_opts = {
-          server_override: @server,
           completion_queue_override: @server_queue,
           poll_period: 1
         }
         @srv = RpcServer.new(**server_opts)
+        server_port = @srv.add_http2_port('0.0.0.0', :this_port_is_insecure)
+        @host = "localhost:#{server_port}"
+        @ch = GRPC::Core::Channel.new(@host, nil, :this_channel_is_insecure)
       end
 
       it 'should return NOT_FOUND status on unknown methods', server: true do
-- 
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