Interop stress tests
diff --git a/test/cpp/interop/stress_test.cc b/test/cpp/interop/stress_test.cc
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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *is % allowed in string
+ */
+
+#include <memory>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
+
+#include <gflags/gflags.h>
+#include <grpc/support/time.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/grpc++.h>
+
+#include "test/cpp/interop/interop_client.h"
+#include "test/cpp/interop/stress_interop_client.h"
+#include "test/cpp/util/test_config.h"
+
+DEFINE_int32(sleep_duration_ms, 0,
+ "The duration (in millisec) between two"
+ " consecutive test calls (per server) issued by the server.");
+
+DEFINE_int32(test_duration_secs, -1,
+ "The length of time (in seconds) to run"
+ " the test. Enter -1 if the test should run continuously until"
+ " forcefully terminated.");
+
+DEFINE_string(server_addresses, "localhost:8080",
+ "The list of server"
+ " addresses in the format:\n"
+ " \"<name_1>:<port_1>,<name_2>:<port_1>...<name_N>:<port_N>\"\n"
+ " Note: <name> can be servername or IP address.");
+
+// TODO(sreek): Add more test cases here in future
+DEFINE_string(test_cases, "",
+ "List of test cases to call along with the"
+ " relative weights in the following format:\n"
+ " \"<testcase_1:w_1>,<testcase_2:w_2>...<testcase_n:w_n>\"\n"
+ " The following testcases are currently supported:\n"
+ " empty_unary\n"
+ " large_unary\n"
+ " large_compressed_unary\n"
+ " client_streaming\n"
+ " server_streaming\n"
+ " empty_stream\n"
+ " Example: \"empty_unary:20,large_unary:10,empty_stream:70\"\n"
+ " The above will execute 'empty_unary', 20% of the time,"
+ " 'large_unary', 10% of the time and 'empty_stream' the remaining"
+ " 70% of the time");
+
+using std::make_pair;
+using std::pair;
+using std::string;
+using std::thread;
+using std::vector;
+
+using grpc::testing::kTestCaseList;
+using grpc::testing::StressTestInteropClient;
+using grpc::testing::TestCaseType;
+using grpc::testing::TestSelector;
+using grpc::testing::UNKNOWN_TEST;
+
+TestCaseType get_test_type_from_name(const string& test_name) {
+ TestCaseType test_case = UNKNOWN_TEST;
+
+ for (auto it = kTestCaseList.begin(); it != kTestCaseList.end(); it++) {
+ if (test_name == it->second) {
+ test_case = it->first;
+ break;
+ }
+ }
+
+ return test_case;
+}
+
+bool ParseCommaDelimitedString(const string& comma_delimited_str,
+ vector<string>& tokens) {
+ size_t bpos = 0;
+ size_t epos = string::npos;
+
+ while ((epos = comma_delimited_str.find(',', bpos)) != string::npos) {
+ tokens.emplace_back(comma_delimited_str.substr(bpos, epos - bpos));
+ bpos = epos + 1;
+ }
+
+ tokens.emplace_back(comma_delimited_str.substr(bpos)); // Last token
+ return true;
+}
+
+// Input: Test case string "<testcase_name:weight>,<testcase_name:weight>...."
+// Output:
+// - Whether parsing was successful (return value)
+// - Vector of (test_type_enum, weight) pairs
+bool ParseTestCasesString(const string& test_cases,
+ vector<pair<TestCaseType, int>>& tests) {
+ bool is_success = true;
+
+ vector<string> tokens;
+ ParseCommaDelimitedString(test_cases, tokens);
+
+ for (auto it = tokens.begin(); it != tokens.end(); it++) {
+ // Token is in the form <test_name>:<test_weight>
+ size_t colon_pos = it->find(':');
+ if (colon_pos == string::npos) {
+ gpr_log(GPR_ERROR, "Error in parsing test case string: %s", it->c_str());
+ is_success = false;
+ break;
+ }
+
+ string test_name = it->substr(0, colon_pos);
+ int weight = std::stoi(it->substr(colon_pos + 1));
+ TestCaseType test_case = get_test_type_from_name(test_name);
+
+ if (test_case == UNKNOWN_TEST) {
+ gpr_log(GPR_ERROR, "Unknown test case: %s", test_name.c_str());
+ is_success = false;
+ break;
+ }
+
+ tests.emplace_back(std::make_pair(test_case, weight));
+ }
+
+ return is_success;
+}
+
+// For debugging purposes
+void LogParameterInfo(const vector<string>& addresses,
+ const vector<pair<TestCaseType, int>>& tests) {
+ gpr_log(GPR_INFO, "server_addresses: %s", FLAGS_server_addresses.c_str());
+ gpr_log(GPR_INFO, "test_cases : %s", FLAGS_test_cases.c_str());
+ gpr_log(GPR_INFO, "sleep_duration_ms: %d", FLAGS_sleep_duration_ms);
+ gpr_log(GPR_INFO, "test_duration_secs: %d", FLAGS_test_duration_secs);
+
+ int num = 0;
+ for (auto it = addresses.begin(); it != addresses.end(); it++) {
+ gpr_log(GPR_INFO, "%d:%s", ++num, it->c_str());
+ }
+
+ num = 0;
+ for (auto it = tests.begin(); it != tests.end(); it++) {
+ TestCaseType test_case = it->first;
+ int weight = it->second;
+ gpr_log(GPR_INFO, "%d. TestCaseType: %d, Weight: %d", ++num, test_case,
+ weight);
+ }
+}
+
+int main(int argc, char** argv) {
+ grpc::testing::InitTest(&argc, &argv, true);
+ gpr_log(GPR_INFO, "starting test..");
+
+ srand(time(NULL));
+
+ // Parse the server addresses
+ vector<string> server_addresses;
+ ParseCommaDelimitedString(FLAGS_server_addresses, server_addresses);
+
+ // Parse test cases and weights
+ if (FLAGS_test_cases.length() == 0) {
+ gpr_log(GPR_INFO, "Test cases string is empty");
+ return 1;
+ }
+
+ vector<pair<TestCaseType, int>> tests;
+ if (!ParseTestCasesString(FLAGS_test_cases, tests)) {
+ gpr_log(GPR_ERROR, "Error in parsing test cases string %s ",
+ FLAGS_test_cases.c_str());
+ return 1;
+ }
+
+ LogParameterInfo(server_addresses, tests);
+
+ TestSelector test_selector(tests);
+
+ vector<thread> test_threads;
+ int thread_idx = 0;
+ for (auto it = server_addresses.begin(); it != server_addresses.end(); it++) {
+ StressTestInteropClient* client = new StressTestInteropClient(
+ ++thread_idx, *it, test_selector, FLAGS_test_duration_secs,
+ FLAGS_sleep_duration_ms);
+
+ test_threads.emplace_back(
+ thread(&StressTestInteropClient::MainLoop, client));
+ }
+
+ for (auto it = test_threads.begin(); it != test_threads.end(); it++) {
+ it->join();
+ }
+
+ return 0;
+}