test: create activeUser and selectedUser tests

__tests__/redux/activeUsers.test.ts

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+import { setActiveUsers } from '../../app/actions/activeUsers';
+import { IActiveUsers } from '../../app/reducers/activeUsers';
+import { mockedStore } from '../../__mocks__/mockedStore';
+
+describe('test reducer', () => {
+	it('should return {} as initial state', async () => {
+		const state = mockedStore.getState().activeUsers;
+		expect(state).toEqual({});
+	});
+	it('should return modified store after action', async () => {
+		const activeUsers: IActiveUsers = { any: { status: 'online', statusText: 'any' } };
+		mockedStore.dispatch(setActiveUsers(activeUsers));
+		const state = mockedStore.getState().activeUsers;
+		expect(state).toEqual({ ...activeUsers });
+	});
+});

__tests__/redux/selectedUsers.test.ts

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+import { addUser } from '../../app/actions/selectedUsers';
+import { mockedStore } from '../../__mocks__/mockedStore';
+
+describe('test reducer', () => {
+	const initialState = {
+		users: [],
+		loading: false
+	};
+	it('should return initial state', async () => {
+		const state = mockedStore.getState().selectedUsers;
+		expect(state).toEqual(initialState);
+	});
+
+	it('should return modified store after action', async () => {
+		const user = { _id: 'user.id', name: 'user.username', fname: 'user.name' };
+		mockedStore.dispatch(addUser(user));
+		const state = mockedStore.getState().selectedUsers;
+		expect(state).toEqual({ loading: false, users: [user] });
+	});
+});