utils.js

'use strict';
const {
  ArrayPrototypeJoin,
  RegExpPrototypeSymbolSplit,
  SafeMap,
  StringPrototypeRepeat,
  hardenRegExp,
} = primordials;
const colors = require('internal/util/colors');
const { inspectWithNoCustomRetry } = require('internal/errors');
const indentMemo = new SafeMap();

const inspectOptions = {
  __proto__: null,
  colors: colors.shouldColorize(process.stdout),
  breakLength: Infinity,
};

const reporterUnicodeSymbolMap = {
  '__proto__': null,
  'test:fail': '\u2716 ',
  'test:pass': '\u2714 ',
  'test:diagnostic': '\u2139 ',
  'test:coverage': '\u2139 ',
  'arrow:right': '\u25B6 ',
  'hyphen:minus': '\uFE63 ',
};

const reporterColorMap = {
  '__proto__': null,
  get 'test:fail'() {
    return colors.red;
  },
  get 'test:pass'() {
    return colors.green;
  },
  get 'test:diagnostic'() {
    return colors.blue;
  },
};

function indent(nesting) {
  let value = indentMemo.get(nesting);
  if (value === undefined) {
    value = StringPrototypeRepeat('  ', nesting);
    indentMemo.set(nesting, value);
  }
  return value;
}

function formatError(error, indent) {
  if (!error) return '';
  const err = error.code === 'ERR_TEST_FAILURE' ? error.cause : error;
  const message = ArrayPrototypeJoin(
    RegExpPrototypeSymbolSplit(
      hardenRegExp(/\r?\n/),
      inspectWithNoCustomRetry(err, inspectOptions),
    ), `\n${indent}  `);
  return `\n${indent}  ${message}\n`;
}

function formatTestReport(type, data, prefix = '', indent = '', hasChildren = false) {
  let color = reporterColorMap[type] ?? colors.white;
  let symbol = reporterUnicodeSymbolMap[type] ?? ' ';
  const { skip, todo } = data;
  const duration_ms = data.details?.duration_ms ? ` ${colors.gray}(${data.details.duration_ms}ms)${colors.white}` : '';
  let title = `${data.name}${duration_ms}`;

  if (skip !== undefined) {
    title += ` # ${typeof skip === 'string' && skip.length ? skip : 'SKIP'}`;
  } else if (todo !== undefined) {
    title += ` # ${typeof todo === 'string' && todo.length ? todo : 'TODO'}`;
  }
  const error = formatError(data.details?.error, indent);
  if (hasChildren) {
    // If this test has had children - it was already reported, so slightly modify the output
    const err = !error || data.details?.error?.failureType === 'subtestsFailed' ? '' : `\n${error}`;
    return `${prefix}${indent}${color}${reporterUnicodeSymbolMap['arrow:right']}${colors.white}${title}${err}`;
  }
  if (skip !== undefined) {
    color = colors.gray;
    symbol = reporterUnicodeSymbolMap['hyphen:minus'];
  }
  return `${prefix}${indent}${color}${symbol}${title}${colors.white}${error}`;
}

module.exports = {
  __proto__: null,
  reporterUnicodeSymbolMap,
  reporterColorMap,
  formatTestReport,
  indent,
};