**Replace exit with std::terminate and refine error handling**

Replaced `exit(2)` with `std::terminate` in multiple runners for better error handling consistency. Simplified Task constructor by removing custom terminate handler and directly logging the error on destruction if the function order is incorrect. Removed redundant debug output in `func_test_util.hpp` for cleaner test logic.

Author: allnes

modules/core/task/include/task.hpp

@@ -70,15 +70,7 @@ enum StateOfTesting : uint8_t { kFunc, kPerf };
 template <typename InType, typename OutType>
 class Task {
  public:
-  explicit Task(StateOfTesting /*state_of_testing*/ = StateOfTesting::kFunc) {
-    auto custom_terminate = []() {
-      std::cerr << "ORDER OF FUNCTIONS IS NOT RIGHT! \n"
-                   "Expected - \"Validation\", \"PreProcessing\", \"Run\", \"PostProcessing\" \n";
-      std::abort();
-    };
-    std::set_terminate(custom_terminate);
-    functions_order_.clear();
-  }
+  explicit Task(StateOfTesting /*state_of_testing*/ = StateOfTesting::kFunc) { functions_order_.clear(); }
 
   // validation of data and validation of task attributes before running
   virtual bool Validation() final {
@@ -131,6 +123,8 @@ class Task {
 
   virtual ~Task() {
     if (!functions_order_.empty() || !was_worked_) {
+      std::cerr << "ORDER OF FUNCTIONS IS NOT RIGHT! \n Expected - \"Validation\", \"PreProcessing\", \"Run\", "
+                   "\"PostProcessing\" \n";
       std::terminate();
     } else {
       functions_order_.clear();

modules/core/util/include/func_test_util.hpp

@@ -56,8 +56,6 @@ class BaseRunFuncTests : public ::testing::TestWithParam<FuncTestParam<InType, O
     ASSERT_TRUE(task_->PreProcessing());
     ASSERT_TRUE(task_->Run());
     ASSERT_TRUE(task_->PostProcessing());
-    std::cout << "task_->GetInput() = " << task_->GetInput() << std::endl;
-    std::cout << "task_->GetOutput() = " << task_->GetOutput() << std::endl;
     ASSERT_TRUE(CheckTestOutputData(task_->GetOutput()));
   }
 

tasks/runners/functional.cpp

@@ -32,7 +32,7 @@ class UnreadMessagesDetector : public ::testing::EmptyTestEventListener {
           "[  PROCESS %d  ] [  FAILED  ] %s.%s: MPI message queue has an unread message from process %d with tag %d\n",
           rank, "test_suite_name", "test_name", status.MPI_SOURCE, status.MPI_TAG);
       MPI_Finalize();
-      exit(2);
+      std::terminate();
     }
 
     MPI_Barrier(MPI_COMM_WORLD);

tasks/runners/performance.cpp

@@ -32,7 +32,7 @@ class UnreadMessagesDetector : public ::testing::EmptyTestEventListener {
           "[  PROCESS %d  ] [  FAILED  ] %s.%s: MPI message queue has an unread message from process %d with tag %d\n",
           rank, "test_suite_name", "test_name", status.MPI_SOURCE, status.MPI_TAG);
       MPI_Finalize();
-      exit(2);
+      std::terminate();
     }
 
     MPI_Barrier(MPI_COMM_WORLD);