nexo/apps/mattermost/app/store/fetching_thread_store.test.ts

124 lines
3.7 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {setFetchingThreadState, subject} from './fetching_thread_store';
describe('FetchingThreadStore', () => {
afterEach(() => {
// Reset state after each test
subject.next({});
});
it('should have initial empty state', () => {
const state = subject.value;
expect(state).toEqual({});
});
it('should set fetching state for a thread', () => {
const rootId = 'thread-1';
setFetchingThreadState(rootId, true);
const state = subject.value;
expect(state[rootId]).toBe(true);
});
it('should update fetching state for a thread', () => {
const rootId = 'thread-1';
setFetchingThreadState(rootId, true);
expect(subject.value[rootId]).toBe(true);
setFetchingThreadState(rootId, false);
expect(subject.value[rootId]).toBe(false);
});
it('should handle multiple threads independently', () => {
const rootId1 = 'thread-1';
const rootId2 = 'thread-2';
const rootId3 = 'thread-3';
setFetchingThreadState(rootId1, true);
setFetchingThreadState(rootId2, true);
setFetchingThreadState(rootId3, false);
const state = subject.value;
expect(state[rootId1]).toBe(true);
expect(state[rootId2]).toBe(true);
expect(state[rootId3]).toBe(false);
});
it('should preserve other thread states when updating one', () => {
const rootId1 = 'thread-1';
const rootId2 = 'thread-2';
setFetchingThreadState(rootId1, true);
setFetchingThreadState(rootId2, true);
expect(subject.value[rootId1]).toBe(true);
expect(subject.value[rootId2]).toBe(true);
setFetchingThreadState(rootId1, false);
const state = subject.value;
expect(state[rootId1]).toBe(false);
expect(state[rootId2]).toBe(true);
});
it('should emit values through observable', () => {
const mockCallback = jest.fn();
const subscription = subject.subscribe(mockCallback);
// Should immediately get current state
expect(mockCallback).toHaveBeenCalledWith({});
const rootId = 'thread-1';
setFetchingThreadState(rootId, true);
// Should get new state
expect(mockCallback).toHaveBeenCalledWith({
[rootId]: true,
});
setFetchingThreadState(rootId, false);
// Should get updated state
expect(mockCallback).toHaveBeenCalledWith({
[rootId]: false,
});
expect(mockCallback).toHaveBeenCalledTimes(3);
subscription.unsubscribe();
// After unsubscribe, callback should not be called
setFetchingThreadState('thread-2', true);
expect(mockCallback).toHaveBeenCalledTimes(3);
});
it('should handle rapid state changes', () => {
const rootId = 'thread-1';
setFetchingThreadState(rootId, true);
setFetchingThreadState(rootId, false);
setFetchingThreadState(rootId, true);
setFetchingThreadState(rootId, false);
expect(subject.value[rootId]).toBe(false);
});
it('should maintain state across multiple threads during concurrent updates', () => {
setFetchingThreadState('thread-1', true);
setFetchingThreadState('thread-2', true);
setFetchingThreadState('thread-3', false);
setFetchingThreadState('thread-1', false);
setFetchingThreadState('thread-4', true);
const state = subject.value;
expect(state['thread-1']).toBe(false);
expect(state['thread-2']).toBe(true);
expect(state['thread-3']).toBe(false);
expect(state['thread-4']).toBe(true);
});
});