react-native-navigation/lib/module/processors/LayoutProcessorsStore.test.js

React Native Navigation - truly native navigation for iOS and Android

"use strict";

import { LayoutProcessorsStore } from "./LayoutProcessorsStore.js";
describe('Layout processors Store', () => {
  let uut;
  beforeEach(() => {
    uut = new LayoutProcessorsStore();
  });
  it('should register processor to store', () => {
    const processor = (value, _commandName) => value;
    uut.addProcessor(processor);
    expect(uut.getProcessors()).toEqual([processor]);
  });
  it('should register multiple processors', () => {
    const processor = (value, _commandName) => value;
    const secondProcessor = (value, _commandName) => value;
    uut.addProcessor(processor);
    uut.addProcessor(secondProcessor);
    expect(uut.getProcessors()).toEqual([processor, secondProcessor]);
  });
  it('should unregister processor', () => {
    const processor = (value, _commandName) => value;
    const {
      remove
    } = uut.addProcessor(processor);
    expect(uut.getProcessors()).toEqual([processor]);
    remove();
    expect(uut.getProcessors()).toEqual([]);
  });
});
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