refactoring: reducing header tree hell

firmware/controllers/algo/accel_enrichment.h

@@ -10,7 +10,7 @@
 #ifndef ACC_ENRICHMENT_H_
 #define ACC_ENRICHMENT_H_
 
-#include "engine_configuration.h"
+#include "global.h"
 #include "cyclic_buffer.h"
 #include "table_helper.h"
 

unit_tests/global.h

@@ -17,6 +17,15 @@
 
 #include "boards.h"
 
+// this is needed by all DECLARE_ENGINE_PARAMETER_* usages
+#include "engine_configuration_generated_structures.h"
+
+#ifdef __cplusplus
+// this is needed by all DECLARE_ENGINE_PARAMETER_* usages
+class Engine;
+#endif /* __cplusplus */
+
+
 #ifdef __cplusplus
 // todo: include it right here? #include "unit_test_framework.h"
 extern "C"
@@ -60,10 +69,6 @@ void print(const char *fmt, ...);
 #define EXTERN_ENGINE extern EnginePins enginePins
 #define EXTERN_CONFIG
 
-#ifdef __cplusplus
-class Engine;
-#endif /* __cplusplus */
-
 /**
  * @see firmware/global.h for explanation
  */