|  | @@ -196,6 +196,178 @@ static void run_one_request(grpc_end2end_test_config config,
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				|  |  |    cq_verifier_destroy(cqv);
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				|  |  |  }
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				|  |  |  
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				|  |  | +/* Creates and returns a grpc_slice containing random alphanumeric characters.
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				|  |  | + */
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				|  |  | +static grpc_slice generate_random_slice() {
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				|  |  | +  size_t i;
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				|  |  | +  static const char chars[] = "abcdefghijklmnopqrstuvwxyz1234567890";
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				|  |  | +  char* output;
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				|  |  | +  const size_t output_size = 1024 * 1024;
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				|  |  | +  output = static_cast<char*>(gpr_malloc(output_size));
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				|  |  | +  for (i = 0; i < output_size - 1; ++i) {
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				|  |  | +    output[i] = chars[rand() % static_cast<int>(sizeof(chars) - 1)];
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				|  |  | +  }
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				|  |  | +  output[output_size - 1] = '\0';
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				|  |  | +  grpc_slice out = grpc_slice_from_copied_string(output);
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				|  |  | +  gpr_free(output);
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				|  |  | +  return out;
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				|  |  | +}
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				|  |  | +
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				|  |  | +static void run_one_request_with_payload(grpc_end2end_test_config config,
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				|  |  | +                                         grpc_end2end_test_fixture f) {
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				|  |  | +  /* Create large request and response bodies. These are big enough to require
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				|  |  | +   * multiple round trips to deliver to the peer, and their exact contents of
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				|  |  | +   * will be verified on completion. */
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				|  |  | +  grpc_slice request_payload_slice = generate_random_slice();
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				|  |  | +  grpc_slice response_payload_slice = generate_random_slice();
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				|  |  | +
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				|  |  | +  grpc_call* c;
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				|  |  | +  grpc_call* s;
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				|  |  | +  grpc_byte_buffer* request_payload =
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				|  |  | +      grpc_raw_byte_buffer_create(&request_payload_slice, 1);
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				|  |  | +  grpc_byte_buffer* response_payload =
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				|  |  | +      grpc_raw_byte_buffer_create(&response_payload_slice, 1);
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				|  |  | +  cq_verifier* cqv = cq_verifier_create(f.cq);
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				|  |  | +  grpc_op ops[6];
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				|  |  | +  grpc_op* op;
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				|  |  | +  grpc_metadata_array initial_metadata_recv;
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				|  |  | +  grpc_metadata_array trailing_metadata_recv;
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				|  |  | +  grpc_metadata_array request_metadata_recv;
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				|  |  | +  grpc_byte_buffer* request_payload_recv = nullptr;
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				|  |  | +  grpc_byte_buffer* response_payload_recv = nullptr;
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				|  |  | +  grpc_call_details call_details;
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				|  |  | +  grpc_status_code status;
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				|  |  | +  grpc_call_error error;
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				|  |  | +  grpc_slice details;
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				|  |  | +  int was_cancelled = 2;
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				|  |  | +
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				|  |  | +  gpr_timespec deadline = n_seconds_from_now(60);
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				|  |  | +  c = grpc_channel_create_call(f.client, nullptr, GRPC_PROPAGATE_DEFAULTS, f.cq,
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				|  |  | +                               grpc_slice_from_static_string("/foo"), nullptr,
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				|  |  | +                               deadline, nullptr);
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				|  |  | +  GPR_ASSERT(c);
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				|  |  | +
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				|  |  | +  grpc_metadata_array_init(&initial_metadata_recv);
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				|  |  | +  grpc_metadata_array_init(&trailing_metadata_recv);
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				|  |  | +  grpc_metadata_array_init(&request_metadata_recv);
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				|  |  | +  grpc_call_details_init(&call_details);
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				|  |  | +
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				|  |  | +  memset(ops, 0, sizeof(ops));
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_MESSAGE;
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				|  |  | +  op->data.send_message.send_message = request_payload;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_INITIAL_METADATA;
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				|  |  | +  op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_MESSAGE;
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				|  |  | +  op->data.recv_message.recv_message = &response_payload_recv;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
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				|  |  | +  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
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				|  |  | +  op->data.recv_status_on_client.status = &status;
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				|  |  | +  op->data.recv_status_on_client.status_details = &details;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  error = grpc_call_start_batch(c, ops, static_cast<size_t>(op - ops), tag(1),
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				|  |  | +                                nullptr);
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == error);
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				|  |  | +
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				|  |  | +  error =
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				|  |  | +      grpc_server_request_call(f.server, &s, &call_details,
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				|  |  | +                               &request_metadata_recv, f.cq, f.cq, tag(101));
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == error);
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				|  |  | +  CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
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				|  |  | +  cq_verify(cqv);
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				|  |  | +
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				|  |  | +  memset(ops, 0, sizeof(ops));
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_SEND_INITIAL_METADATA;
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				|  |  | +  op->data.send_initial_metadata.count = 0;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_RECV_MESSAGE;
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				|  |  | +  op->data.recv_message.recv_message = &request_payload_recv;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  error = grpc_call_start_batch(s, ops, static_cast<size_t>(op - ops), tag(102),
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				|  |  | +                                nullptr);
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == error);
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				|  |  | +
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				|  |  | +  CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
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				|  |  | +  cq_verify(cqv);
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				|  |  | +
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				|  |  | +  memset(ops, 0, sizeof(ops));
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				|  |  | +  op = ops;
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				|  |  | +  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
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				|  |  | +  op->data.recv_close_on_server.cancelled = &was_cancelled;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_MESSAGE;
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				|  |  | +  op->data.send_message.send_message = response_payload;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
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				|  |  | +  op->data.send_status_from_server.trailing_metadata_count = 0;
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				|  |  | +  op->data.send_status_from_server.status = GRPC_STATUS_OK;
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				|  |  | +  grpc_slice status_details = grpc_slice_from_static_string("xyz");
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				|  |  | +  op->data.send_status_from_server.status_details = &status_details;
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				|  |  | +  op->flags = 0;
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				|  |  | +  op->reserved = nullptr;
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				|  |  | +  op++;
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				|  |  | +  error = grpc_call_start_batch(s, ops, static_cast<size_t>(op - ops), tag(103),
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				|  |  | +                                nullptr);
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				|  |  | +  GPR_ASSERT(GRPC_CALL_OK == error);
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				|  |  | +
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				|  |  | +  CQ_EXPECT_COMPLETION(cqv, tag(103), 1);
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				|  |  | +  CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
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				|  |  | +  cq_verify(cqv);
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				|  |  | +
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				|  |  | +  GPR_ASSERT(status == GRPC_STATUS_OK);
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				|  |  | +  GPR_ASSERT(0 == grpc_slice_str_cmp(details, "xyz"));
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				|  |  | +  GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
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				|  |  | +  GPR_ASSERT(was_cancelled == 0);
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				|  |  | +  GPR_ASSERT(byte_buffer_eq_slice(request_payload_recv, request_payload_slice));
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				|  |  | +  GPR_ASSERT(
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				|  |  | +      byte_buffer_eq_slice(response_payload_recv, response_payload_slice));
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				|  |  | +
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				|  |  | +  grpc_slice_unref(details);
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				|  |  | +  grpc_metadata_array_destroy(&initial_metadata_recv);
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				|  |  | +  grpc_metadata_array_destroy(&trailing_metadata_recv);
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				|  |  | +  grpc_metadata_array_destroy(&request_metadata_recv);
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				|  |  | +  grpc_call_details_destroy(&call_details);
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				|  |  | +
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				|  |  | +  grpc_call_unref(c);
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				|  |  | +  grpc_call_unref(s);
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				|  |  | +
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				|  |  | +  cq_verifier_destroy(cqv);
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				|  |  | +
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				|  |  | +  grpc_byte_buffer_destroy(request_payload);
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				|  |  | +  grpc_byte_buffer_destroy(response_payload);
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				|  |  | +  grpc_byte_buffer_destroy(request_payload_recv);
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				|  |  | +  grpc_byte_buffer_destroy(response_payload_recv);
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				|  |  | +}
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				|  |  | +
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				|  |  |  static void test_channelz(grpc_end2end_test_config config) {
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				|  |  |    grpc_end2end_test_fixture f;
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				|  |  |  
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				|  | @@ -258,6 +430,10 @@ static void test_channelz(grpc_end2end_test_config config) {
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				|  |  |    GPR_ASSERT(nullptr == strstr(json, "\"severity\":\"CT_INFO\""));
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				|  |  |    gpr_free(json);
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				|  |  |  
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				|  |  | +  // one successful request with payload to test socket data
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				|  |  | +  // TODO(ncteisen): add some programatic spot checks on the socket json.
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				|  |  | +  run_one_request_with_payload(config, f);
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				|  |  | +
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				|  |  |    end_test(&f);
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				|  |  |    config.tear_down_data(&f);
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				|  |  |  }
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