get_no_test_found_verbose.js

import chalk from 'chalk';
import pluralize from './pluralize';

const getNoTestFoundVerbose = (testRunData, globalConfig): string => {
  const individualResults = testRunData.map(testRun => {
    const stats = testRun.matches.stats || {};
    const config = testRun.context.config;
    const statsMessage = Object.keys(stats)
      .map(key => {
        if (key === 'roots' && config.roots.length === 1) {
          return null;
        }
        const value = config[key];
        if (value) {
          const matches = pluralize('match', stats[key], 'es');
          return `  ${key}: ${chalk.yellow(value)} - ${matches}`;
        }
        return null;
      })
      .filter(line => line)
      .join('\n');

    return testRun.matches.total
      ? `In ${chalk.bold(config.rootDir)}\n` +
        `  ${pluralize('file', testRun.matches.total || 0, 's')} checked.\n` +
        statsMessage
      : `No files found in ${config.rootDir}.\n` +
        `Make sure Jest's configuration does not exclude this directory.` +
        `\nTo set up Jest, make sure a package.json file exists.\n` +
        `Jest Documentation: ` +
        `facebook.github.io/jest/docs/configuration.html`;
  });
  let dataMessage;

  if (globalConfig.runTestsByPath) {
    dataMessage = `Files: ${globalConfig.nonFlagArgs
      .map(p => `"${p}"`)
      .join(', ')}`;
  } else {
    dataMessage = `Pattern: ${chalk.yellow(
      globalConfig.testPathPattern,
    )} - 0 matches`;
  }

  return (
    chalk.bold('No tests found') +
    '\n' +
    individualResults.join('\n') +
    '\n' +
    dataMessage
  );
};

module.exports = getNoTestFoundVerbose;