Fixup unit tests due to new homing behavior

tests/unit/logic/homing/test_homing.cpp

@@ -134,6 +134,8 @@ bool RefusedHome(uint8_t slot) {
     mg::globals.SetFilamentLoaded(slot, mg::FilamentLoadState::AtPulley);
 
     // selector should start the homing sequence
+    main_loop(); // plans the homing move
+    // since the Idler is ok, the Selector should start homing immediately
     main_loop();
     REQUIRE(ms::selector.State() == ms::Selector::HomeForward);
     return true;

tests/unit/logic/stubs/homing.cpp

@@ -9,6 +9,7 @@
 #include "../stubs/stub_motion.h"
 
 void SimulateIdlerAndSelectorHoming(logic::CommandBase &cb) {
+#if 0
     // do 5 steps until we trigger the simulated stallguard
     for (uint8_t i = 0; i < 5; ++i) {
         main_loop();
@@ -48,6 +49,11 @@ void SimulateIdlerAndSelectorHoming(logic::CommandBase &cb) {
         main_loop();
         cb.Step();
     }
+#else
+    // sadly, it looks like we need to separate homing of idler and selector due to electrical reasons
+    SimulateIdlerHoming(cb);
+    SimulateSelectorHoming(cb);
+#endif
 }
 
 void SimulateIdlerHoming(logic::CommandBase &cb) {

tests/unit/logic/stubs/main_loop_stub.cpp

@@ -80,10 +80,11 @@ void ForceReinitAllAutomata() {
 }
 
 void HomeIdlerAndSelector() {
-    ms::selector.InvalidateHoming();
     mi::idler.InvalidateHoming();
+    ms::selector.InvalidateHoming();
     logic::NoCommand nc; // just a dummy instance which has an empty Step()
-    SimulateIdlerAndSelectorHoming(nc);
+    SimulateIdlerHoming(nc);
+    SimulateSelectorHoming(nc);
 }
 
 bool EnsureActiveSlotIndex(uint8_t slot, mg::FilamentLoadState loadState) {