/* * * Copyright 2016 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. * */ #include #include #include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h" #include "src/core/lib/iomgr/sockaddr.h" #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/proto/grpc/lb/v1/load_balancer.pb.h" // C++ version namespace grpc { namespace { using grpc::lb::v1::LoadBalanceRequest; using grpc::lb::v1::LoadBalanceResponse; class GrpclbTest : public ::testing::Test {}; grpc::string Ip4ToPackedString(const char* ip_str) { struct in_addr ip4; GPR_ASSERT(inet_pton(AF_INET, ip_str, &ip4) == 1); return grpc::string(reinterpret_cast(&ip4), sizeof(ip4)); } grpc::string PackedStringToIp(const grpc_grpclb_ip_address& pb_ip) { char ip_str[46] = {0}; int af = -1; if (pb_ip.size == 4) { af = AF_INET; } else if (pb_ip.size == 16) { af = AF_INET6; } else { abort(); } GPR_ASSERT(inet_ntop(af, (void*)pb_ip.bytes, ip_str, 46) != NULL); return ip_str; } TEST_F(GrpclbTest, CreateRequest) { const grpc::string service_name = "AServiceName"; LoadBalanceRequest request; grpc_grpclb_request* c_req = grpc_grpclb_request_create(service_name.c_str()); grpc_slice slice = grpc_grpclb_request_encode(c_req); const int num_bytes_written = GRPC_SLICE_LENGTH(slice); EXPECT_GT(num_bytes_written, 0); request.ParseFromArray(GRPC_SLICE_START_PTR(slice), num_bytes_written); EXPECT_EQ(request.initial_request().name(), service_name); grpc_slice_unref(slice); grpc_grpclb_request_destroy(c_req); } TEST_F(GrpclbTest, ParseInitialResponse) { LoadBalanceResponse response; auto* initial_response = response.mutable_initial_response(); auto* client_stats_report_interval = initial_response->mutable_client_stats_report_interval(); client_stats_report_interval->set_seconds(123); client_stats_report_interval->set_nanos(456); const grpc::string encoded_response = response.SerializeAsString(); grpc_slice encoded_slice = grpc_slice_from_copied_string(encoded_response.c_str()); grpc_grpclb_initial_response* c_initial_response = grpc_grpclb_initial_response_parse(encoded_slice); EXPECT_FALSE(c_initial_response->has_load_balancer_delegate); EXPECT_EQ(c_initial_response->client_stats_report_interval.seconds, 123); EXPECT_EQ(c_initial_response->client_stats_report_interval.nanos, 456); grpc_slice_unref(encoded_slice); grpc_grpclb_initial_response_destroy(c_initial_response); } TEST_F(GrpclbTest, ParseResponseServerList) { LoadBalanceResponse response; auto* serverlist = response.mutable_server_list(); auto* server = serverlist->add_servers(); server->set_ip_address(Ip4ToPackedString("127.0.0.1")); server->set_port(12345); server->set_load_balance_token("rate_limting"); server->set_drop(true); server = response.mutable_server_list()->add_servers(); server->set_ip_address(Ip4ToPackedString("10.0.0.1")); server->set_port(54321); server->set_load_balance_token("load_balancing"); server->set_drop(true); auto* expiration_interval = serverlist->mutable_expiration_interval(); expiration_interval->set_seconds(888); expiration_interval->set_nanos(999); const grpc::string encoded_response = response.SerializeAsString(); const grpc_slice encoded_slice = grpc_slice_from_copied_buffer( encoded_response.data(), encoded_response.size()); grpc_grpclb_serverlist* c_serverlist = grpc_grpclb_response_parse_serverlist(encoded_slice); ASSERT_EQ(c_serverlist->num_servers, 2ul); EXPECT_TRUE(c_serverlist->servers[0]->has_ip_address); EXPECT_EQ(PackedStringToIp(c_serverlist->servers[0]->ip_address), "127.0.0.1"); EXPECT_EQ(c_serverlist->servers[0]->port, 12345); EXPECT_STREQ(c_serverlist->servers[0]->load_balance_token, "rate_limting"); EXPECT_TRUE(c_serverlist->servers[0]->drop); EXPECT_TRUE(c_serverlist->servers[1]->has_ip_address); EXPECT_EQ(PackedStringToIp(c_serverlist->servers[1]->ip_address), "10.0.0.1"); EXPECT_EQ(c_serverlist->servers[1]->port, 54321); EXPECT_STREQ(c_serverlist->servers[1]->load_balance_token, "load_balancing"); EXPECT_TRUE(c_serverlist->servers[1]->drop); EXPECT_TRUE(c_serverlist->expiration_interval.has_seconds); EXPECT_EQ(c_serverlist->expiration_interval.seconds, 888); EXPECT_TRUE(c_serverlist->expiration_interval.has_nanos); EXPECT_EQ(c_serverlist->expiration_interval.nanos, 999); grpc_slice_unref(encoded_slice); grpc_grpclb_destroy_serverlist(c_serverlist); } } // namespace } // namespace grpc int main(int argc, char** argv) { ::testing::InitGoogleTest(&argc, argv); return RUN_ALL_TESTS(); }