fix tests

Author: aobolensk

modules/core/task/include/task.hpp

@@ -65,7 +65,7 @@ class Task {
 
  private:
   std::vector<std::string> functions_order_;
-  std::vector<std::string> right_functions_order_ = {"validation", "PreProcessing", "run", "post_processing"};
+  std::vector<std::string> right_functions_order_ = {"Validation", "PreProcessing", "Run", "PostProcessing"};
   const double max_test_time_ = 1.0;
   std::chrono::high_resolution_clock::time_point tmp_time_point_;
 };