Reorganized power tests ...

... and changed creation of fake tiles so update() implementations have all required dependencies

tests/src/test/java/power/ItemLiquidGeneratorTests.java

@@ -0,0 +1,37 @@
+package power;
+
+import io.anuke.mindustry.type.Item;
+import io.anuke.mindustry.type.Liquid;
+import io.anuke.mindustry.world.Tile;
+import io.anuke.mindustry.world.blocks.power.ItemLiquidGenerator;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+/** This class tests the abstract ItemLiquidGenerator class and maybe some of its dependencies. */
+public class ItemLiquidGeneratorTests extends PowerTestFixture{
+
+    private ItemLiquidGenerator sut; // system under test (https://en.wikipedia.org/wiki/System_under_test)
+    private Tile tile;
+
+    @BeforeEach
+    public void createItemLiquidGenerator(){
+        sut = new ItemLiquidGenerator("fakegen"){
+            @Override
+            protected float getLiquidEfficiency(Liquid liquid){
+                return liquid.flammability;
+            }
+
+            @Override
+            protected float getItemEfficiency(Item item){
+                return item.flammability;
+            }
+        };
+        tile = createFakeTile(0, 0, sut);
+    }
+
+    @Test
+    void detectCrashes(){
+        sut.update(tile);
+    }
+}