core_tests: add a --list_tests command line switch

tests/core_tests/chaingen.h

@@ -669,7 +669,9 @@ inline bool do_replay_file(const std::string& filename)
     }
 
 #define GENERATE_AND_PLAY(genclass)                                                                        \
-  if (filter.empty() || boost::regex_match(std::string(#genclass), match, boost::regex(filter)))           \
+  if (list_tests)                                                                                          \
+    std::cout << #genclass << std::endl;                                                                   \
+  else if (filter.empty() || boost::regex_match(std::string(#genclass), match, boost::regex(filter)))      \
   {                                                                                                        \
     std::vector<test_event_entry> events;                                                                  \
     ++tests_count;                                                                                         \

tests/core_tests/chaingen_main.cpp

@@ -44,6 +44,7 @@ namespace
   const command_line::arg_descriptor<bool>        arg_generate_and_play_test_data = {"generate_and_play_test_data", ""};
   const command_line::arg_descriptor<bool>        arg_test_transactions           = {"test_transactions", ""};
   const command_line::arg_descriptor<std::string> arg_filter                      = { "filter", "Regular expression filter for which tests to run" };
+  const command_line::arg_descriptor<bool>        arg_list_tests                  = {"list_tests", ""};
 }
 
 int main(int argc, char* argv[])
@@ -64,6 +65,7 @@ int main(int argc, char* argv[])
   command_line::add_arg(desc_options, arg_generate_and_play_test_data);
   command_line::add_arg(desc_options, arg_test_transactions);
   command_line::add_arg(desc_options, arg_filter);
+  command_line::add_arg(desc_options, arg_list_tests);
 
   po::variables_map vm;
   bool r = command_line::handle_error_helper(desc_options, [&]()
@@ -87,6 +89,7 @@ int main(int argc, char* argv[])
   size_t tests_count = 0;
   std::vector<std::string> failed_tests;
   std::string tests_folder = command_line::get_arg(vm, arg_test_data_path);
+  bool list_tests = false;
   if (command_line::get_arg(vm, arg_generate_test_data))
   {
     GENERATE("chain001.dat", gen_simple_chain_001);
@@ -95,7 +98,7 @@ int main(int argc, char* argv[])
   {
     PLAY("chain001.dat", gen_simple_chain_001);
   }
-  else if (command_line::get_arg(vm, arg_generate_and_play_test_data))
+  else if (command_line::get_arg(vm, arg_generate_and_play_test_data) || (list_tests = command_line::get_arg(vm, arg_list_tests)))
   {
     GENERATE_AND_PLAY(gen_simple_chain_001);
     GENERATE_AND_PLAY(gen_simple_chain_split_1);
@@ -251,9 +254,12 @@ int main(int argc, char* argv[])
     GENERATE_AND_PLAY(gen_bp_tx_invalid_borromean_type);
 
     el::Level level = (failed_tests.empty() ? el::Level::Info : el::Level::Error);
-    MLOG(level, "\nREPORT:");
-    MLOG(level, "  Test run: " << tests_count);
-    MLOG(level, "  Failures: " << failed_tests.size());
+    if (!list_tests)
+    {
+      MLOG(level, "\nREPORT:");
+      MLOG(level, "  Test run: " << tests_count);
+      MLOG(level, "  Failures: " << failed_tests.size());
+    }
     if (!failed_tests.empty())
     {
       MLOG(level, "FAILED TESTS:");