only-changed-jest-watch-plugin/example/node_modules/jest-watcher/build/lib/format_test_name_by_pattern.js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});

var _chalk;

function _load_chalk() {
  return (_chalk = _interopRequireDefault(require('chalk')));
}

var _colorize;

function _load_colorize() {
  return (_colorize = _interopRequireDefault(require('./colorize')));
}

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

/**
 * Copyright (c) 2014-present, Facebook, Inc. 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 DOTS = '...';
const ENTER = '⏎';

exports.default = (testName, pattern, width) => {
  const inlineTestName = testName.replace(/(\r\n|\n|\r)/gm, ENTER);

  let regexp;

  try {
    regexp = new RegExp(pattern, 'i');
  } catch (e) {
    return (_chalk || _load_chalk()).default.dim(inlineTestName);
  }

  const match = inlineTestName.match(regexp);

  if (!match) {
    return (_chalk || _load_chalk()).default.dim(inlineTestName);
  }

  // $FlowFixMe
  const startPatternIndex = Math.max(match.index, 0);
  const endPatternIndex = startPatternIndex + match[0].length;

  if (inlineTestName.length <= width) {
    return (0, (_colorize || _load_colorize()).default)(
      inlineTestName,
      startPatternIndex,
      endPatternIndex
    );
  }

  const slicedTestName = inlineTestName.slice(0, width - DOTS.length);

  if (startPatternIndex < slicedTestName.length) {
    if (endPatternIndex > slicedTestName.length) {
      return (0, (_colorize || _load_colorize()).default)(
        slicedTestName + DOTS,
        startPatternIndex,
        slicedTestName.length + DOTS.length
      );
    } else {
      return (0, (_colorize || _load_colorize()).default)(
        slicedTestName + DOTS,
        Math.min(startPatternIndex, slicedTestName.length),
        endPatternIndex
      );
    }
  }

  return `${(_chalk || _load_chalk()).default.dim(slicedTestName)}${(
    _chalk || _load_chalk()
  ).default.reset(DOTS)}`;
};