react-displayName-test.js

/**
 * Copyright 2013-2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @emails react-core
 */
"use strict";

require('mock-modules').autoMockOff();

var transformAll = require('../../syntax.js').transformAll;

function transform(source) {
  return transformAll(source, {}, ['allocate']);
}

describe('react displayName jsx', function() {

  it('should only inject displayName if missing', function() {
    var code = [
      '"use strict";',
      'var Whateva = React.createClass({',
      '  displayName: "Whateva",',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    var result = [
      '"use strict";',
      'var Whateva = React.createClass({',
      '  displayName: "Whateva",',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    expect(transform(code).code).toEqual(result);
  });

  it('should inject displayName in simple assignment', () => {
    var code = [
      'var Component = React.createClass({',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    var result = [
      'var Component = React.createClass({displayName: "Component",',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    expect(transform(code).code).toEqual(result);
  });

  it('should inject displayName in simple assignment without var', () => {
    var code = [
      'var Component;',
      'Component = React.createClass({',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    var result = [
      'var Component;',
      'Component = React.createClass({displayName: "Component",',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    expect(transform(code).code).toEqual(result);
  });

  it('should inject displayName in property assignment', () => {
    var code = [
      'exports.Component = React.createClass({',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    var result = [
      'exports.Component = React.createClass({displayName: "Component",',
      '  render: function() {',
      '    return null;',
      '  }',
      '});'
    ].join('\n');

    expect(transform(code).code).toEqual(result);
  });

  it('should inject displayName in object declaration', () => {
    var code = [
      'exports = {',
      '  Component: React.createClass({',
      '    render: function() {',
      '      return null;',
      '    }',
      '  })',
      '};'
    ].join('\n');

    var result = [
      'exports = {',
      '  Component: React.createClass({displayName: "Component",',
      '    render: function() {',
      '      return null;',
      '    }',
      '  })',
      '};'
    ].join('\n');

    expect(transform(code).code).toEqual(result);
  });

});