Legger til tester for en partikkeltype

src/test/java/inf112/fiasko/roborally/element_properties/ParticleTypeTest.java

@@ -0,0 +1,52 @@
+package inf112.fiasko.roborally.element_properties;
+
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import static org.junit.Assert.assertEquals;
+
+public class ParticleTypeTest {
+    @Test
+    public void getTileTypeIDForLaserBeam() {
+        assertEquals(1, ParticleType.LASER_BEAM_SINGLE.getParticleTypeID());
+    }
+
+    @Test
+    public void getTileTypeFromLaserBeamID() {
+        assertEquals(ParticleType.LASER_BEAM_SINGLE, ParticleType.getParticleTypeFromID(1));
+    }
+
+    @Test
+    public void getTileTypeIDForLaserBeamDouble() {
+        assertEquals(2, ParticleType.LASER_BEAM_DOUBLE.getParticleTypeID());
+    }
+
+    @Test
+    public void getTileTypeFromLaserBeamDoubleID() {
+        assertEquals(ParticleType.LASER_BEAM_DOUBLE, ParticleType.getParticleTypeFromID(2));
+    }
+
+    @Test
+    public void allParticleTypesIDConversionToIDAndBack() {
+        for (ParticleType type : ParticleType.values()) {
+            assertEquals(type, ParticleType.getParticleTypeFromID(type.getParticleTypeID()));
+        }
+    }
+
+    @Test
+    public void allParticlesHaveUniqueId() {
+        /* This test is also done implicitly by the allTileTypesIDConversionToIDAndBack test, but that test may fail
+           even if this test passes, so this test is needed for clarity. */
+        Set<Integer> set = new HashSet<>();
+        List<Integer> list = new ArrayList<>();
+        for (ParticleType type : ParticleType.values()) {
+            set.add(type.getParticleTypeID());
+            list.add(type.getParticleTypeID());
+        }
+        assertEquals(list.size(), set.size());
+    }
+}