Adds symbols to access the fields in Status struct

src/ruby/ext/grpc/rb_grpc.c

@@ -195,7 +195,7 @@ static ID id_inspect;
 /* id_to_s is the to_s method found on various ruby objects. */
 static ID id_to_s;
 
-/* Converts `a wrapped time constant to a standard time. */
+/* Converts a wrapped time constant to a standard time. */
 VALUE grpc_rb_time_val_to_time(VALUE self) {
   gpr_timespec *time_const = NULL;
   Data_Get_Struct(self, gpr_timespec, time_const);
@@ -257,8 +257,11 @@ void Init_grpc() {
   rb_mGRPC = rb_define_module("GRPC");
   rb_mGrpcCore = rb_define_module_under(rb_mGRPC, "Core");
   rb_sNewServerRpc = rb_struct_define("NewServerRpc", "method", "host",
-                                      "deadline", "metadata", NULL);
+                                      "deadline", "metadata", "call", NULL);
   rb_sStatus = rb_struct_define("Status", "code", "details", "metadata", NULL);
+  sym_code = ID2SYM(rb_intern("code"));
+  sym_details = ID2SYM(rb_intern("details"));
+  sym_metadata = ID2SYM(rb_intern("metadata"));
 
   Init_grpc_byte_buffer();
   Init_grpc_event();

src/ruby/ext/grpc/rb_grpc.h

@@ -50,6 +50,15 @@ extern VALUE rb_sNewServerRpc;
 /* rb_sStruct is the struct that holds status details. */
 extern VALUE rb_sStatus;
 
+/* sym_code is the symbol for the code attribute of rb_sStatus. */
+VALUE sym_code;
+
+/* sym_details is the symbol for the details attribute of rb_sStatus. */
+VALUE sym_details;
+
+/* sym_metadata is the symbol for the metadata attribute of rb_sStatus. */
+VALUE sym_metadata;
+
 /* GC_NOT_MARKED is used in calls to Data_Wrap_Struct to indicate that the
    wrapped struct does not need to participate in ruby gc. */
 extern const RUBY_DATA_FUNC GC_NOT_MARKED;

src/ruby/spec/call_spec.rb

@@ -76,7 +76,7 @@ describe GRPC::Core::CallOps do
       RECV_INITIAL_METADATA: 4,
       RECV_MESSAGE: 5,
       RECV_STATUS_ON_CLIENT: 6,
-      RECV_CLOSE_ON_SERVER: 7,
+      RECV_CLOSE_ON_SERVER: 7
     }
   end
 
@@ -88,43 +88,14 @@ describe GRPC::Core::CallOps do
 end
 
 describe GRPC::Core::Call do
-  let (:client_queue) { GRPC::Core::CompletionQueue.new }
-  let (:test_tag)  { Object.new }
-  let (:fake_host) { 'localhost:10101' }
+  let(:client_queue) { GRPC::Core::CompletionQueue.new }
+  let(:test_tag)  { Object.new }
+  let(:fake_host) { 'localhost:10101' }
 
   before(:each) do
     @ch = GRPC::Core::Channel.new(fake_host, nil)
   end
 
-  describe '#start_read' do
-    xit 'should fail if called immediately' do
-      blk = proc { make_test_call.start_read(test_tag) }
-      expect(&blk).to raise_error GRPC::Core::CallError
-    end
-  end
-
-  describe '#start_write' do
-    xit 'should fail if called immediately' do
-      bytes = GRPC::Core::ByteBuffer.new('test string')
-      blk = proc { make_test_call.start_write(bytes, test_tag) }
-      expect(&blk).to raise_error GRPC::Core::CallError
-    end
-  end
-
-  describe '#start_write_status' do
-    xit 'should fail if called immediately' do
-      blk = proc { make_test_call.start_write_status(153, 'x', test_tag) }
-      expect(&blk).to raise_error GRPC::Core::CallError
-    end
-  end
-
-  describe '#writes_done' do
-    xit 'should fail if called immediately' do
-      blk = proc { make_test_call.writes_done(Object.new) }
-      expect(&blk).to raise_error GRPC::Core::CallError
-    end
-  end
-
   describe '#add_metadata' do
     it 'adds metadata to a call without fail' do
       call = make_test_call