stream-chat-react/src/components/Dialog/__tests__/DialogsManager.test.js at 468b784a5814fe4fe525b660f952f26d8e2ca3b5 · GetStream/stream-chat-react · GitHub

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import { DialogManager } from '../DialogManager';
import * as nanoid from 'nanoid';

const dialogId = 'dialogId';

describe('DialogManager', () => {
  it('initiates with provided options', () => {
    const id = 'XX';
    const dialogManager = new DialogManager({ id });
    expect(dialogManager.id).toBe(id);
  });

  it('initiates with default options', () => {
    jest.spyOn(nanoid, 'nanoid').mockReturnValue('mockedId');
    const dialogManager = new DialogManager();
    expect(dialogManager.id).toBe('mockedId');
  });

  it('creates a new closed dialog', () => {
    const dialogManager = new DialogManager();
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(0);
    expect(dialogManager.getOrCreate({ id: dialogId })).toMatchObject({
      close: expect.any(Function),
      id: 'dialogId',
      isOpen: false,
      open: expect.any(Function),
      remove: expect.any(Function),
      toggle: expect.any(Function),
    });
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(1);
    expect(dialogManager.openDialogCount).toBe(0);
  });

  it('retrieves an existing dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.state.next((current) => ({
      ...current,
      dialogsById: { ...current.dialogsById, [dialogId]: { id: dialogId, isOpen: true } },
    }));
    expect(dialogManager.getOrCreate({ id: dialogId })).toMatchObject({
      id: 'dialogId',
      isOpen: true,
    });
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(1);
  });

  it('creates a dialog if it does not exist on open', () => {
    const dialogManager = new DialogManager();
    dialogManager.open({ id: dialogId });
    expect(dialogManager.state.getLatestValue().dialogsById[dialogId]).toMatchObject({
      close: expect.any(Function),
      id: 'dialogId',
      isOpen: true,
      open: expect.any(Function),
      remove: expect.any(Function),
      toggle: expect.any(Function),
    });
    expect(dialogManager.openDialogCount).toBe(1);
  });

  it('opens existing dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    expect(
      dialogManager.state.getLatestValue().dialogsById[dialogId].isOpen,
    ).toBeTruthy();
    expect(dialogManager.openDialogCount).toBe(1);
  });

  it('does not open already open dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    dialogManager.open({ id: dialogId });
    expect(dialogManager.openDialogCount).toBe(1);
  });

  it('closes all other dialogsById before opening the target', () => {
    const dialogManager = new DialogManager();
    dialogManager.open({ id: 'xxx' });
    dialogManager.open({ id: 'yyy' });
    expect(dialogManager.openDialogCount).toBe(2);
    dialogManager.open({ id: dialogId }, true);
    const dialogs = dialogManager.state.getLatestValue().dialogsById;
    expect(dialogs.xxx.isOpen).toBeFalsy();
    expect(dialogs.yyy.isOpen).toBeFalsy();
    expect(
      dialogManager.state.getLatestValue().dialogsById[dialogId].isOpen,
    ).toBeTruthy();
    expect(dialogManager.openDialogCount).toBe(1);
  });

  it('closes opened dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.open({ id: dialogId });
    dialogManager.close(dialogId);
    expect(dialogManager.state.getLatestValue().dialogsById[dialogId].isOpen).toBeFalsy();
    expect(dialogManager.openDialogCount).toBe(0);
  });

  it('does not close already closed dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.open({ id: 'xxx' });
    dialogManager.open({ id: dialogId });
    dialogManager.close(dialogId);
    dialogManager.close(dialogId);
    expect(dialogManager.openDialogCount).toBe(1);
  });

  it('toggles the open state of a dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.open({ id: 'xxx' });
    dialogManager.open({ id: 'yyy' });
    dialogManager.toggle({ id: dialogId });
    expect(dialogManager.openDialogCount).toBe(3);
    dialogManager.toggle({ id: dialogId });
    expect(dialogManager.openDialogCount).toBe(2);
  });

  it('keeps single opened dialog when the toggling open dialog state', () => {
    const dialogManager = new DialogManager();

    dialogManager.open({ id: 'xxx' });
    dialogManager.open({ id: 'yyy' });
    dialogManager.toggle({ id: dialogId }, true);
    expect(dialogManager.openDialogCount).toBe(1);

    dialogManager.toggle({ id: dialogId }, true);
    expect(dialogManager.openDialogCount).toBe(0);
  });

  it('removes a dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    dialogManager.remove(dialogId);
    expect(dialogManager.openDialogCount).toBe(0);
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(0);
  });

  it('handles attempt to remove non-existent dialog', () => {
    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    dialogManager.remove('xxx');
    expect(dialogManager.openDialogCount).toBe(1);
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(1);
  });

  it('marks dialog for removal', () => {
    jest.useFakeTimers();

    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    dialogManager.markForRemoval(dialogId);

    jest.runAllTimers();

    expect(dialogManager.openDialogCount).toBe(0);
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(0);
  });

  it('cancels dialog removal if it is referenced again quickly', () => {
    jest.useFakeTimers();

    const dialogManager = new DialogManager();
    dialogManager.getOrCreate({ id: dialogId });
    dialogManager.open({ id: dialogId });
    dialogManager.markForRemoval(dialogId);
    dialogManager.getOrCreate({ id: dialogId });

    jest.runAllTimers();

    expect(dialogManager.openDialogCount).toBe(1);
    expect(Object.keys(dialogManager.state.getLatestValue().dialogsById)).toHaveLength(1);
  });
});