Implement ChunkMock isForceLoaded (#969)

* implement ChunkMock isForceLoaded

* unit tests for ChunkMock isForceLoaded

---------

Co-authored-by: Thorinwasher <37477983+Thorinwasher@users.noreply.github.com>

src/main/java/be/seeseemelk/mockbukkit/ChunkMock.java

@@ -35,6 +35,7 @@ public class ChunkMock implements Chunk
 	private final int z;
 	private final PersistentDataContainer persistentDataContainer = new PersistentDataContainerMock();
 	private boolean isSlimeChunk;
+	private boolean isForceLoaded = false;
 
 	/**
 	 * Constructs a new {@link ChunkMock} for the provided world, at the specified coordinates.
@@ -254,15 +255,13 @@ else if (obj instanceof ChunkMock chunk)
 	@Override
 	public boolean isForceLoaded()
 	{
-		// TODO Auto-generated method stub
-		throw new UnimplementedOperationException();
+		return isForceLoaded;
 	}
 
 	@Override
 	public void setForceLoaded(boolean forced)
 	{
-		// TODO Auto-generated method stub
-		throw new UnimplementedOperationException();
+		this.isForceLoaded = forced;
 	}
 
 	@Override

src/test/java/be/seeseemelk/mockbukkit/ChunkTest.java

@@ -133,6 +133,21 @@ void isLoaded_AfterLoad_True()
 		assertTrue(chunk.isLoaded());
 	}
 
+	@Test
+	void isForceLoaded_JustCreated_False()
+	{
+		ChunkMock chunk = world.getChunkAt(0, 0);
+		assertFalse(chunk.isForceLoaded());
+	}
+
+	@Test
+	void isForceLoaded_AfterSet_True()
+	{
+		ChunkMock chunk = world.getChunkAt(0, 0);
+		chunk.setForceLoaded(true);
+		assertTrue(chunk.isForceLoaded());
+	}
+
 	@Test
 	void equals_DifferentChunk_False()
 	{