test: add a test for getFeature selector

#4812

npm/ng-packs/packages/core/src/lib/tests/config.state.spec.ts

@@ -93,7 +93,9 @@ export const CONFIG_STATE_DATA = {
     roles: [],
   },
   features: {
-    values: {},
+    values: {
+      'Chat.Enable': 'True',
+    },
   },
 } as Config.State;
 
@@ -163,6 +165,14 @@ describe('ConfigState', () => {
     });
   });
 
+  describe('#getFeature', () => {
+    it('should return a setting', () => {
+      expect(ConfigState.getFeature('Chat.Enable')(CONFIG_STATE_DATA)).toEqual(
+        CONFIG_STATE_DATA.features.values['Chat.Enable'],
+      );
+    });
+  });
+
   describe('#getSetting', () => {
     it('should return a setting', () => {
       expect(ConfigState.getSetting('Abp.Localization.DefaultLanguage')(CONFIG_STATE_DATA)).toEqual(