node_modules/karma-spec-reporter/index.js

var colors = require('colors');

var SpecReporter = function (baseReporterDecorator, formatError, config) {
  baseReporterDecorator(this);

  var platform = process ? process.platform : 'unknown';
  var selectPrefix = function(defaultMarker, win32Marker) {
    return platform === 'win32' ? win32Marker : defaultMarker;
  }
  var reporterCfg = config.specReporter || {};
  this.prefixes = Object.assign({
      success: selectPrefix('✓ ', '\u221A '),
      failure: selectPrefix('✗ ', '\u00D7 '),
      skipped: selectPrefix('- ', '\- ')
    }, reporterCfg.prefixes);

  this.failures = [];
  this.USE_COLORS = false;

  // colorize output of BaseReporter functions
  if (config.colors) {
    colors.enabled = true;
    this.USE_COLORS = true;
    this.SPEC_FAILURE = '%s %s FAILED'.red + '\n';
    this.SPEC_SLOW = '%s SLOW %s: %s'.yellow + '\n';
    this.ERROR = '%s ERROR'.red + '\n';
    this.FINISHED_ERROR = ' ERROR'.red;
    this.FINISHED_SUCCESS = ' SUCCESS'.green;
    this.FINISHED_DISCONNECTED = ' DISCONNECTED'.red;
    this.X_FAILED = ' (%d FAILED)'.red;
    this.TOTAL_SUCCESS = 'TOTAL: %d SUCCESS'.green + '\n';
    this.TOTAL_FAILED = 'TOTAL: %d FAILED, %d SUCCESS'.red + '\n';
  }

  this.onRunComplete = function (browsers, results) {
    //NOTE: the renderBrowser function is defined in karma/reporters/Base.js
    this.writeCommonMsg('\n' + browsers.map(this.renderBrowser)
        .join('\n') + '\n');

    if (browsers.length >= 1 && !results.disconnected && !results.error) {
      if (!results.failed) {
        this.write(this.TOTAL_SUCCESS, results.success);
      } else {
        this.write(this.TOTAL_FAILED, results.failed, results.success);
        if (!this.suppressErrorSummary) {
          this.logFinalErrors(this.failures);
        }
      }
    }

    this.write('\n');
    this.failures = [];
    this.currentSuite = [];
  };

  this.logFinalErrors = function (errors) {
    this.writeCommonMsg('\n\n');
    this.WHITESPACE = '     ';

    errors.forEach(function (failure, index) {
      index = index + 1;

      if (index > 1) {
        this.writeCommonMsg('\n');
      }

      this.writeCommonMsg((index + ') ' + failure.description + '\n').red);
      this.writeCommonMsg((this.WHITESPACE + failure.suite.join(' ') + '\n').red);
      failure.log.forEach(function (log) {
        if (reporterCfg.maxLogLines) {
          log = log.split('\n').slice(0, reporterCfg.maxLogLines).join('\n');
        }
        this.writeCommonMsg(this.WHITESPACE + formatError(log)
            .replace(/\\n/g, '\n').grey);
      }, this);
    }, this);

    this.writeCommonMsg('\n');
  };

  this.currentSuite = [];
  this.writeSpecMessage = function (status) {
    return (function (browser, result) {
      var suite = result.suite;
      var indent = "  ";
      suite.forEach(function (value, index) {
        if (index >= this.currentSuite.length || this.currentSuite[index] != value) {
          if (index === 0) {
            this.writeCommonMsg('\n');
          }

          this.writeCommonMsg(indent + value + '\n');
          this.currentSuite = [];
        }

        indent += '  ';
      }, this);

      this.currentSuite = suite;

      var specName = result.description;
      var elapsedTime = reporterCfg.showSpecTiming ? ' (' + result.time + 'ms)' : '';

      if (this.USE_COLORS) {
        if (result.skipped) specName = specName.cyan;
        else if (!result.success) specName = specName.red;
      }

      var msg = indent + status + specName + elapsedTime;

      result.log.forEach(function (log) {
        if (reporterCfg.maxLogLines) {
          log = log.split('\n').slice(0, reporterCfg.maxLogLines).join('\n');
        }
        msg += '\n' + formatError(log, '\t');
      });

      this.writeCommonMsg(msg + '\n');

      // NOTE: other useful properties
      // browser.id;
      // browser.fullName;
    }).bind(this);
  };

  this.LOG_SINGLE_BROWSER = '%s LOG: %s\n';
  this.LOG_MULTI_BROWSER = '%s %s LOG: %s\n';
  var doLog = config && config.browserConsoleLogOptions && config.browserConsoleLogOptions.terminal;
  this.onBrowserLog = doLog ? function (browser, log, type) {
    if (this._browsers && this._browsers.length === 1) {
      this.write(this.LOG_SINGLE_BROWSER, type.toUpperCase(), this.USE_COLORS ? log.cyan : log);
    } else {
      this.write(this.LOG_MULTI_BROWSER, browser, type.toUpperCase(), this.USE_COLORS ? log.cyan : log);
    }
  } : noop;

  function noop() {
  }

  this.onSpecFailure = function (browsers, results) {
    this.failures.push(results);
    this.writeSpecMessage(this.USE_COLORS ? this.prefixes.failure.red : this.prefixes.failure).apply(this, arguments);
    if (reporterCfg.failFast) {
      throw new Error('Fail fast active for tests, exiting(failFast option is enabled)');
    }
  };

  this.specSuccess = reporterCfg.suppressPassed ? noop : this.writeSpecMessage(this.USE_COLORS ? this.prefixes.success.green : this.prefixes.success);
  this.specSkipped = reporterCfg.suppressSkipped ? noop : this.writeSpecMessage(this.USE_COLORS ? this.prefixes.skipped.cyan : this.prefixes.skipped);
  this.specFailure = reporterCfg.suppressFailed ? noop : this.onSpecFailure;
  this.suppressErrorSummary = reporterCfg.suppressErrorSummary || false;
  this.showSpecTiming = reporterCfg.showSpecTiming || false;
};

SpecReporter.$inject = ['baseReporterDecorator', 'formatError', 'config'];

module.exports = {
  'reporter:spec': ['type', SpecReporter]
};