react-native/website/react-docgen/lib/utils/__tests__/isExportsOrModuleAssignment-test.js

"use strict";

jest.autoMockOff();

describe('isExportsOrModuleAssignment', function() {
  var recast;
  var isExportsOrModuleAssignment;

  function parse(src) {
    return new recast.types.NodePath(
      recast.parse(src).program.body[0]
    );
  }

  beforeEach(function() {
    isExportsOrModuleAssignment = require('../isExportsOrModuleAssignment');
    recast = require('recast');
  });

  it('detects "module.exports = ...;"', function() {
    expect(isExportsOrModuleAssignment(parse('module.exports = foo;')))
      .toBe(true);
  });

  it('detects "exports.foo = ..."', function() {
    expect(isExportsOrModuleAssignment(parse('exports.foo = foo;')))
      .toBe(true);
  });

  it('does not accept "exports = foo;"', function() {
    // That doesn't actually export anything
    expect(isExportsOrModuleAssignment(parse('exports = foo;')))
      .toBe(false);
  });

});