index.js 5.48 KB
'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});
exports.describe =
  exports.default =
  exports.beforeEach =
  exports.beforeAll =
  exports.afterEach =
  exports.afterAll =
    void 0;
Object.defineProperty(exports, 'getState', {
  enumerable: true,
  get: function () {
    return _state.getState;
  }
});
exports.it = void 0;
Object.defineProperty(exports, 'resetState', {
  enumerable: true,
  get: function () {
    return _state.resetState;
  }
});
Object.defineProperty(exports, 'run', {
  enumerable: true,
  get: function () {
    return _run.default;
  }
});
Object.defineProperty(exports, 'setState', {
  enumerable: true,
  get: function () {
    return _state.setState;
  }
});
exports.test = void 0;

var _jestEach = require('jest-each');

var _jestUtil = require('jest-util');

var _state = require('./state');

var _run = _interopRequireDefault(require('./run'));

function _interopRequireDefault(obj) {
  return obj && obj.__esModule ? obj : {default: obj};
}

/**
 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
const describe = (() => {
  const describe = (blockName, blockFn) =>
    _dispatchDescribe(blockFn, blockName, describe);

  const only = (blockName, blockFn) =>
    _dispatchDescribe(blockFn, blockName, only, 'only');

  const skip = (blockName, blockFn) =>
    _dispatchDescribe(blockFn, blockName, skip, 'skip');

  describe.each = (0, _jestEach.bind)(describe, false);
  only.each = (0, _jestEach.bind)(only, false);
  skip.each = (0, _jestEach.bind)(skip, false);
  describe.only = only;
  describe.skip = skip;
  return describe;
})();

exports.describe = describe;

const _dispatchDescribe = (blockFn, blockName, describeFn, mode) => {
  const asyncError = new _jestUtil.ErrorWithStack(undefined, describeFn);

  if (blockFn === undefined) {
    asyncError.message =
      'Missing second argument. It must be a callback function.';
    throw asyncError;
  }

  if (typeof blockFn !== 'function') {
    asyncError.message = `Invalid second argument, ${blockFn}. It must be a callback function.`;
    throw asyncError;
  }

  (0, _state.dispatchSync)({
    asyncError,
    blockName,
    mode,
    name: 'start_describe_definition'
  });
  const describeReturn = blockFn();

  if ((0, _jestUtil.isPromise)(describeReturn)) {
    throw new _jestUtil.ErrorWithStack(
      'Returning a Promise from "describe" is not supported. Tests must be defined synchronously.',
      describeFn
    );
  } else if (describeReturn !== undefined) {
    throw new _jestUtil.ErrorWithStack(
      'A "describe" callback must not return a value.',
      describeFn
    );
  }

  (0, _state.dispatchSync)({
    blockName,
    mode,
    name: 'finish_describe_definition'
  });
};

const _addHook = (fn, hookType, hookFn, timeout) => {
  const asyncError = new _jestUtil.ErrorWithStack(undefined, hookFn);

  if (typeof fn !== 'function') {
    asyncError.message =
      'Invalid first argument. It must be a callback function.';
    throw asyncError;
  }

  (0, _state.dispatchSync)({
    asyncError,
    fn,
    hookType,
    name: 'add_hook',
    timeout
  });
}; // Hooks have to pass themselves to the HOF in order for us to trim stack traces.

const beforeEach = (fn, timeout) =>
  _addHook(fn, 'beforeEach', beforeEach, timeout);

exports.beforeEach = beforeEach;

const beforeAll = (fn, timeout) =>
  _addHook(fn, 'beforeAll', beforeAll, timeout);

exports.beforeAll = beforeAll;

const afterEach = (fn, timeout) =>
  _addHook(fn, 'afterEach', afterEach, timeout);

exports.afterEach = afterEach;

const afterAll = (fn, timeout) => _addHook(fn, 'afterAll', afterAll, timeout);

exports.afterAll = afterAll;

const test = (() => {
  const test = (testName, fn, timeout) =>
    _addTest(testName, undefined, fn, test, timeout);

  const skip = (testName, fn, timeout) =>
    _addTest(testName, 'skip', fn, skip, timeout);

  const only = (testName, fn, timeout) =>
    _addTest(testName, 'only', fn, test.only, timeout);

  test.todo = (testName, ...rest) => {
    if (rest.length > 0 || typeof testName !== 'string') {
      throw new _jestUtil.ErrorWithStack(
        'Todo must be called with only a description.',
        test.todo
      );
    }

    return _addTest(testName, 'todo', () => {}, test.todo);
  };

  const _addTest = (testName, mode, fn, testFn, timeout) => {
    const asyncError = new _jestUtil.ErrorWithStack(undefined, testFn);

    if (typeof testName !== 'string') {
      asyncError.message = `Invalid first argument, ${testName}. It must be a string.`;
      throw asyncError;
    }

    if (fn === undefined) {
      asyncError.message =
        'Missing second argument. It must be a callback function. Perhaps you want to use `test.todo` for a test placeholder.';
      throw asyncError;
    }

    if (typeof fn !== 'function') {
      asyncError.message = `Invalid second argument, ${fn}. It must be a callback function.`;
      throw asyncError;
    }

    return (0, _state.dispatchSync)({
      asyncError,
      fn,
      mode,
      name: 'add_test',
      testName,
      timeout
    });
  };

  test.each = (0, _jestEach.bind)(test);
  only.each = (0, _jestEach.bind)(only);
  skip.each = (0, _jestEach.bind)(skip);
  test.only = only;
  test.skip = skip;
  return test;
})();

exports.test = test;
const it = test;
exports.it = it;
var _default = {
  afterAll,
  afterEach,
  beforeAll,
  beforeEach,
  describe,
  it,
  test
};
exports.default = _default;