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path: root/spec/frontend/dropzone_input_spec.js
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import $ from 'jquery';
import mock from 'xhr-mock';
import { TEST_HOST } from 'spec/test_constants';
import waitForPromises from 'helpers/wait_for_promises';
import dropzoneInput from '~/dropzone_input';
import PasteMarkdownTable from '~/behaviors/markdown/paste_markdown_table';

const TEST_FILE = new File([], 'somefile.jpg');
TEST_FILE.upload = {};

const TEST_UPLOAD_PATH = `${TEST_HOST}/upload/file`;
const TEST_ERROR_MESSAGE = 'A big error occurred!';
const TEMPLATE = `<form class="gfm-form" data-uploads-path="${TEST_UPLOAD_PATH}">
  <textarea class="js-gfm-input"></textarea>
  <div class="uploading-error-message"></div>
</form>`;

describe('dropzone_input', () => {
  it('returns null when failed to initialize', () => {
    const dropzone = dropzoneInput($('<form class="gfm-form"></form>'));

    expect(dropzone).toBeNull();
  });

  it('returns valid dropzone when successfully initialize', () => {
    const dropzone = dropzoneInput($(TEMPLATE));

    expect(dropzone.version).toBeTruthy();
  });

  describe('handlePaste', () => {
    beforeEach(() => {
      loadFixtures('issues/new-issue.html');

      const form = $('#new_issue');
      form.data('uploads-path', TEST_UPLOAD_PATH);
      dropzoneInput(form);
    });

    it('pastes Markdown tables', () => {
      const event = $.Event('paste');
      const origEvent = new Event('paste');

      origEvent.clipboardData = {
        types: ['text/plain', 'text/html'],
        getData: () => '<table><tr><td>Hello World</td></tr></table>',
        items: [],
      };
      event.originalEvent = origEvent;

      jest.spyOn(PasteMarkdownTable.prototype, 'isTable');
      jest.spyOn(PasteMarkdownTable.prototype, 'convertToTableMarkdown');

      $('.js-gfm-input').trigger(event);

      expect(PasteMarkdownTable.prototype.isTable).toHaveBeenCalled();
      expect(PasteMarkdownTable.prototype.convertToTableMarkdown).toHaveBeenCalled();
    });
  });

  describe('shows error message', () => {
    let form;
    let dropzone;

    beforeEach(() => {
      mock.setup();

      form = $(TEMPLATE);

      dropzone = dropzoneInput(form);
    });

    afterEach(() => {
      mock.teardown();
    });

    beforeEach(() => {});

    it.each`
      responseType          | responseBody
      ${'application/json'} | ${JSON.stringify({ message: TEST_ERROR_MESSAGE })}
      ${'text/plain'}       | ${TEST_ERROR_MESSAGE}
    `('when AJAX fails with json', ({ responseType, responseBody }) => {
      mock.post(TEST_UPLOAD_PATH, {
        status: 400,
        body: responseBody,
        headers: { 'Content-Type': responseType },
      });

      dropzone.processFile(TEST_FILE);

      return waitForPromises().then(() => {
        expect(form.find('.uploading-error-message').text()).toEqual(TEST_ERROR_MESSAGE);
      });
    });
  });
});