import ExampleWebResource from '../src/example';

describe('ExampleWebResource', () => {
  let formContextMock: { ui: { setFormNotification: jest.Mock } };
  let executionContextMock: { getFormContext: jest.Mock };

  beforeEach(() => {
    // create a mock ui with a jest.fn() for setFormNotification
    formContextMock = {
      ui: {
        setFormNotification: jest.fn(),
      },
    };

    // executionContext.getFormContext() returns our mock formContext
    executionContextMock = {
      getFormContext: jest.fn(() => formContextMock),
    };
  });

  it('should call formContext.ui.setFormNotification with the correct parameters', () => {
    const resource = new ExampleWebResource();
    resource.onLoad(executionContextMock as any);

    // verify getFormContext was called
    expect(executionContextMock.getFormContext).toHaveBeenCalled();

    // verify setFormNotification args
    expect(formContextMock.ui.setFormNotification).toHaveBeenCalledWith(
      'This is a notification from the Example Web Resource.',
      'INFO',
      'exampleNotification'
    );
  });

  it('should attach itself to the window object', () => {
    // the module file does: (window as any).ExampleWebResource = ExampleWebResource
    expect((window as any).ExampleWebResource).toBe(ExampleWebResource);
  });
});