Stress test (#3820)

* mem leak fix

* PR comments fix

* PR comments

* seems to work?

* clang

* curl again

* add first stress test

* also update gitignore

* missing line

* only linux

* clang typo format

* typo 2

* PR comments

* cspell

* remove terminator

.gitignore

@@ -19,7 +19,7 @@
 [Rr]eleases/
 x64/
 x86/
-bld/
+bld*/
 [Bb]in/
 [Oo]bj/
 [Ll]og/

sdk/core/azure-core/CMakeLists.txt

@@ -204,6 +204,7 @@ if(BUILD_TESTING)
     add_subdirectory(test/nlohmann-json-test)
   endif()
   add_subdirectory(test/fault-injector)
+  add_subdirectory(test/libcurl-stress-test)
 endif()
 
 if (BUILD_PERFORMANCE_TESTS)

sdk/core/azure-core/test/libcurl-stress-test/CMakeLists.txt

@@ -0,0 +1,26 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# SPDX-License-Identifier: MIT
+
+cmake_minimum_required(VERSION 3.13)
+
+project(azure-core-libcurl-stress-test LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+
+add_executable(
+  azure-core-libcurl-stress-test
+  libcurl_stress_test.cpp
+)
+
+target_link_libraries(azure-core-libcurl-stress-test PRIVATE azure-core)
+
+create_map_file(azure-core-libcurl-stress-test azure-core-libcurl-stress-test.map)
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/Dockerfile
+  DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/)
+
+find_program(DOCKER_EXECUTABLE docker)
+#if docker is found try to build the docker image in the defined docker_build stage which should be run after build
+if(DOCKER_EXECUTABLE)
+	add_custom_target(docker_build
+	COMMAND ${DOCKER_EXECUTABLE} build --build-arg targetTest=azure-core-libcurl-stress-test --build-arg build=on --tag=azuresdkforcpp/curlstress -f Dockerfile .)
+endif()

sdk/core/azure-core/test/libcurl-stress-test/Dockerfile

@@ -0,0 +1,15 @@
+FROM mcr.microsoft.com/mirror/docker/library/ubuntu:22.04
+
+ARG targetTest
+ARG build
+
+# copy the tagrget binary
+ADD $targetTest ./$targetTest
+RUN chmod +x ./$targetTest
+
+# install the mem check tool 
+RUN apt-get update -y
+RUN apt-get install valgrind -y
+
+# execute under memcheck tool 
+RUN valgrind --tool=memcheck -s ./$targetTest $build

sdk/core/azure-core/test/libcurl-stress-test/libcurl_stress_test.cpp

@@ -0,0 +1,95 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+/**
+ * @brief Validates the Azure Core transport adapters with fault responses from server.
+ *
+ * @note This test requires the Http-fault-injector
+ * (https://github.com/Azure/azure-sdk-tools/tree/main/tools/http-fault-injector) running. Follow
+ * the instructions to install and run the server before running this test.
+ *
+ */
+#define REQUESTS 100
+#define WARMUP 100
+#define ROUNDS 100
+
+#include <azure/core.hpp>
+#include <azure/core/http/curl_transport.hpp>
+#include <fstream>
+#include <ios>
+#include <iostream>
+#include <memory>
+#include <stdlib.h>
+#include <string>
+#include <vector>
+
+void SendRequest(std::string target)
+{
+  std::cout << target << std::endl;
+  /* The transport adapter must allow insecure SSL certs.
+  If both curl and winHttp are available, curl is preferred for this test.for*/
+#if defined(BUILD_CURL_HTTP_TRANSPORT_ADAPTER)
+  Azure::Core::Http::CurlTransportOptions curlOptions;
+  curlOptions.SslVerifyPeer = false;
+  auto implementationClient = std::make_shared<Azure::Core::Http::CurlTransport>(curlOptions);
+
+#elif (BUILD_TRANSPORT_WINHTTP_ADAPTER)
+  Azure::Core::Http::WinHttpTransportOptions winHttpOptions;
+  auto implementationClient = std::make_shared<Azure::Core::Http::WinHttpTransport>(winHttpOptions);
+#endif
+  try
+  {
+
+    Azure::Core::Context context;
+    //  auto duration = std::chrono::milliseconds(1000);
+    // auto deadline = std::chrono::system_clock::now() + duration;
+    auto request
+        = Azure::Core::Http::Request(Azure::Core::Http::HttpMethod::Get, Azure::Core::Url(target));
+    auto response = implementationClient->Send(request, context); //.WithDeadline(deadline));
+    // Make sure to pull all bytes from network.
+    auto body = response->ExtractBodyStream()->ReadToEnd();
+  }
+  catch (std::exception const&)
+  {
+  }
+}
+
+void Operation(int repetitions)
+{
+  std::string base = "https://xyz.";
+  for (int i = 0; i < repetitions; i++)
+  {
+    std::cout << i << std::endl;
+    SendRequest(base + std::to_string(i) + ".abc");
+  }
+}
+
+int main(int argc, char** argv) // i can have either 0 or 2 params here
+{
+  (void)argv; // to get rid of the unused warning
+  // some param was passed to the program , which happens only in build mode, not run of the docker
+  // file. thus we will run a quick test to make sure the executable runs.
+  if (argc != 1)
+  {
+    std::cout << "--------------\tBUILD TEST\t--------------" << std::endl;
+    Operation(5);
+    std::cout << "--------------\tEND BUILD TEST\t--------------" << std::endl;
+    return 0;
+  }
+
+  std::cout << "--------------\tSTARTING TEST\t--------------" << std::endl;
+  std::cout << "--------------\tPRE WARMUP\t--------------" << std::endl;
+  Operation(WARMUP);
+
+  std::cout << "--------------\tPOST WARMUP\t--------------" << std::endl;
+
+  for (int i = 0; i < ROUNDS; i++)
+  {
+    std::cout << "--------------\tTEST ITERATION:" << i << "\t--------------" << std::endl;
+    Operation(REQUESTS);
+
+    std::cout << "--------------\tDONE ITERATION:" << i << "\t--------------" << std::endl;
+  }
+
+  return 0;
+}