extend interface for more advanced tests (timeout, write to flash etc.)

tests/include/TecDummy.h

@@ -10,21 +10,41 @@ struct TecDummy : ChimeraTK::DummyBackend {
   TecDummy(std::string mapFileName) : DummyBackend(mapFileName) {}
   ~TecDummy() override {}
 
+  // getter and setter functions for parameters
+  int getInt(TecFrame::TecParameter param) { return rawValues[param]; }
+  float getFloat(TecFrame::TecParameter param) { return *(reinterpret_cast<float*>(&(rawValues[param]))); }
+  void set(TecFrame::TecParameter param, int value) { rawValues[param] = value; }
+  void set(TecFrame::TecParameter param, float value) { rawValues[param] = *(reinterpret_cast<int*>(&value)); }
+
+  // returns whether the last write operation for the given parameter was stored in flash or not. Will return false
+  // if the parameter has not been yet at all.
+  bool getLastWriteToFlash(TecFrame::TecParameter param) { return lastWriteToFlash[param]; }
+
+  // flag whether timeouts should be simulated. This simulates e.g. a broken UART connection between FPGA and TEC device
+  bool simulateSerialTimeout{false};
+
+  // Number of read operations on the LOOP_DONE register required before the communication is simulated and LOOP_DONE is
+  // set to 1. If this value is 0, it will happen on the first read operation. A value of 1 requires one additional read
+  // before. After each communication cycle, this value will end up to be 0. A test needs hence to set this value every
+  // time again.
+  size_t loopDoneDelay{0};
+
+ protected:
   // hardcoded addresses used by the dummy, need to match addresses of map file
   constexpr static uint8_t TecDummy_bar{0};
   constexpr static uint32_t TecDummy_address_loopDone{8};
 
-  // Maps contining the values of the TEC parameters. These maps will be filled / read by the dummy during the
+  // Map containing the values of the TEC parameters. These map will be filled / read by the dummy during the
   // communication with the TEC library. It can also be used by tests to read / change values in the dummy.
   // If a value is not in the map, it means the value has not yet been written / read.
-  // For accessing the values within unit tests, use the getter/setter functions below.
+  // For accessing the values within unit tests, use the getter/setter functions above.
   std::map<TecFrame::TecParameter, int32_t> rawValues;
 
-  // getter and setter functions for parameters
-  int getInt(TecFrame::TecParameter param) { return rawValues[param]; }
-  float getFloat(TecFrame::TecParameter param) { return *(reinterpret_cast<float*>(&(rawValues[param]))); }
-  void set(TecFrame::TecParameter param, int value) { rawValues[param] = value; }
-  void set(TecFrame::TecParameter param, float value) { rawValues[param] = *(reinterpret_cast<int*>(&value)); }
+  // Map containing the flags whether the last write of a TEC parameter was to flash.
+  std::map<TecFrame::TecParameter, bool> lastWriteToFlash;
+
+  // Flag whether writes currently go to flash or not.
+  bool currentWritesToFlash{false}; // TODO: Verify default value from TEC hardware documentation!
 
   // Accessors for the registers
   ChimeraTK::DummyRegisterAccessor<uint32_t> reg_loopStart{this, "UNIO0", "BIT_TEC1091_CMD_LOOP_START"};