Fix tests failure

radio/src/targets/pl18/hal.h

@@ -62,6 +62,12 @@
   #define TRIMS_GPIO_REG_LVU
   #define TRIMS_GPIO_PIN_LVU
 
+  // Switches
+  #define SWITCHES_GPIO_REG_A
+  #define SWITCHES_GPIO_PIN_A
+  #define SWITCHES_GPIO_REG_B
+  #define SWITCHES_GPIO_PIN_B
+  
   // Keys
   #define KEYS_GPIO_PIN_ENTER
   #define KEYS_GPIO_REG_ENTER

radio/src/tests/mixer.cpp

@@ -660,6 +660,8 @@ TEST_F(MixerTest, RecursiveAddChannel)
 
 TEST_F(MixerTest, RecursiveAddChannelAfterInactivePhase)
 {
+  if (switchGetMaxSwitches() < 4) return;
+  
   g_model.flightModeData[1].swtch = SWSRC_FIRST_SWITCH + 1;
   g_model.mixData[0].destCh = 0;
   g_model.mixData[0].mltpx = MLTPX_ADD;