Overlays additional rendering conditions

Description

Covered cases where values needed for rendering overlayBioEntities. There is 3 cases to cover

1. BioEntity has value property, color is null -> interpolate between hexes
2. BioEntity has color property, value is null -> parse color from decimal to hex
3. BioEntity has no color nor value property -> use default property from configuration

src/components/Map/Drawer/OverlaysDrawer/GeneralOverlays/OverlayListItem/hooks/useEmptyBackground.test.ts

+import { getReduxWrapperWithStore } from '@/utils/testing/getReduxWrapperWithStore';
+import { initialMapStateFixture } from '@/redux/map/map.fixtures';
+import {
+  BACKGROUNDS_MOCK,
+  BACKGROUND_INITIAL_STATE_MOCK,
+} from '@/redux/backgrounds/background.mock';
+import { renderHook } from '@testing-library/react';
+import { useEmptyBackground } from './useEmptyBackground';
+
+const DEFAULT_BACKGROUND_ID = 0;
+const EMPTY_BACKGROUND_ID = 15;
+
+describe('useEmptyBackground - hook', () => {
+  describe('returns setEmptyBackground function', () => {
+    it('should not set background to "Empty" if its not available', () => {
+      const { Wrapper, store } = getReduxWrapperWithStore({
+        map: initialMapStateFixture,
+        backgrounds: BACKGROUND_INITIAL_STATE_MOCK,
+      });
+      const { result } = renderHook(() => useEmptyBackground(), { wrapper: Wrapper });
+
+      expect(store.getState().map.data.backgroundId).toBe(DEFAULT_BACKGROUND_ID);
+
+      result.current.setBackgroundtoEmptyIfAvailable();
+
+      expect(store.getState().map.data.backgroundId).toBe(DEFAULT_BACKGROUND_ID);
+    });
+
+    it('should set background to "Empty" if its available', () => {
+      const { Wrapper, store } = getReduxWrapperWithStore({
+        map: initialMapStateFixture,
+        backgrounds: { ...BACKGROUND_INITIAL_STATE_MOCK, data: BACKGROUNDS_MOCK },
+      });
+      const { result } = renderHook(() => useEmptyBackground(), { wrapper: Wrapper });
+
+      expect(store.getState().map.data.backgroundId).toBe(DEFAULT_BACKGROUND_ID);
+
+      result.current.setBackgroundtoEmptyIfAvailable();
+
+      expect(store.getState().map.data.backgroundId).toBe(EMPTY_BACKGROUND_ID);
+    });
+  });
+});