fix: empty controllers not showing their true colors

refinedstorage2-network/src/test/java/com/refinedmods/refinedstorage2/api/network/impl/node/exporter/RoundRobinExporterNetworkNodeTest.java

@@ -29,6 +29,7 @@
 class RoundRobinExporterNetworkNodeTest extends AbstractExporterNetworkNodeTest {
     private Runnable listener;
 
+    @Override
     @BeforeEach
     void setUp() {
         listener = mock(Runnable.class);

refinedstorage2-platform-common/src/main/java/com/refinedmods/refinedstorage2/platform/common/controller/ControllerModelPredicateProvider.java

@@ -16,7 +16,12 @@ public float unclampedCall(final ItemStack stack,
                                @Nullable final LivingEntity entity,
                                final int seed) {
         return PlatformApi.INSTANCE.getEnergyStorage(stack)
-            .map(energyStorage -> (float) energyStorage.getStored() / (float) energyStorage.getCapacity())
+            .map(energyStorage -> {
+                if (energyStorage.getStored() == 0) {
+                    return 1F;
+                }
+                return (float) energyStorage.getStored() / (float) energyStorage.getCapacity();
+            })
             .orElse(1F);
     }
 }

refinedstorage2-platform-forge/build.gradle

@@ -4,4 +4,7 @@ archivesBaseName = 'refinedstorage2-platform-forge'
 
 enablePublishing()
 
+// This avoids a build failure when running the "test" task, because there is no JUnit engine
+// in this subproject.
+// The test source set in this subproject is used for Minecraft game tests, not for JUnit tests.
 test.onlyIf { false }