Fix test compilation errors and max

Software/src/battery/ECMP-HTML.h

@@ -1,6 +1,7 @@
 #ifndef _ECMP_BATTERY_HTML_H
 #define _ECMP_BATTERT_HTML_H
 
+#include <cstring>
 #include "../datalayer/datalayer.h"
 #include "../datalayer/datalayer_extended.h"
 #include "../devboard/webserver/BatteryHtmlRenderer.h"

Software/src/battery/GEELY-GEOMETRY-C-HTML.h

@@ -1,6 +1,7 @@
 #ifndef _GEELY_GEOMETRY_C_HTML_H
 #define _GEELY_GEOMETRY_C_HTML_H
 
+#include <cstring>
 #include "../datalayer/datalayer.h"
 #include "../datalayer/datalayer_extended.h"
 #include "../devboard/webserver/BatteryHtmlRenderer.h"

Software/src/battery/NISSAN-LEAF-HTML.h

@@ -1,6 +1,7 @@
 #ifndef _NISSAN_LEAF_HTML_H
 #define _NISSAN_LEAF_HTML_H
 
+#include <cstring>
 #include "../datalayer/datalayer.h"
 #include "../datalayer/datalayer_extended.h"
 #include "../devboard/webserver/BatteryHtmlRenderer.h"

Software/src/battery/TESLA-HTML.h

@@ -1,6 +1,7 @@
 #ifndef _TESLA_HTML_H
 #define _TESLA_HTML_H
 
+#include <cstring>
 #include "../datalayer/datalayer.h"
 #include "../datalayer/datalayer_extended.h"
 #include "../devboard/webserver/BatteryHtmlRenderer.h"

Software/src/devboard/utils/events.cpp

@@ -424,7 +424,7 @@ static void set_event(EVENTS_ENUM_TYPE event, uint8_t data, bool latched) {
   events.entries[event].state = latched ? EVENT_STATE_ACTIVE_LATCHED : EVENT_STATE_ACTIVE;
 
   // Update event level, only upwards. Downward changes are done in Software.ino:loop()
-  events.level = max(events.level, events.entries[event].level);
+  events.level = (EVENTS_LEVEL_TYPE)max(events.level, events.entries[event].level);
 
   update_bms_status();
 }
@@ -461,7 +461,7 @@ static void update_event_level(void) {
   EVENTS_LEVEL_TYPE temporary_level = EVENT_LEVEL_INFO;
   for (uint8_t i = 0u; i < EVENT_NOF_EVENTS; i++) {
     if ((events.entries[i].state == EVENT_STATE_ACTIVE) || (events.entries[i].state == EVENT_STATE_ACTIVE_LATCHED)) {
-      temporary_level = max(events.entries[i].level, temporary_level);
+      temporary_level = (EVENTS_LEVEL_TYPE)max(events.entries[i].level, temporary_level);
     }
   }
   events.level = temporary_level;

test/CMakeLists.txt

@@ -89,6 +89,7 @@ add_executable(tests
     emul/can.cpp
     emul/time.cpp
     emul/serial.cpp
+    emul/Arduino.cpp
     )
 
 target_link_libraries(tests

test/emul/Arduino.cpp

@@ -0,0 +1,5 @@
+#include "Arduino.h"
+
+int max(int a, int b) {
+  return (a > b) ? a : b;
+}

test/emul/Arduino.h

@@ -13,6 +13,6 @@ int digitalRead(uint8_t pin);
 #undef millis
 unsigned long millis();
 
-#define max(a, b) std::max(a, b)
+int max(int a, int b);
 
 #endif