Code coverage report for lib/winston/common.js

# All files / lib/winston common.js

85.71% Statements 12/14
100% Branches 0/0
66.67% Functions 4/6
85.71% Lines 12/14

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     /**
     * common.js: Internal helper and utility functions for winston.
     *
     * (C) 2010 Charlie Robbins
     * MIT LICENCE
     */

    'use strict';

    const { format } = require('util');

    /**
     * Set of simple deprecation notices and a way to expose them for a set of
     * properties.
     * @type {Object}
     * @private
     */
    exports.warn = {
      deprecated(prop) {
        return () => {
          throw new Error(format('{ %s } was removed in winston@3.0.0.', prop));
        };
      },
      useFormat(prop) {
        return () => {
          throw new Error([
            format('{ %s } was removed in winston@3.0.0.', prop),
            'Use a custom winston.format = winston.format(function) instead.'
          ].join('\n'));
        };
      },
      forFunctions(obj, type, props) {
        props.forEach(prop => {
          obj[prop] = exports.warn[type](prop);
        });
      },
      moved(obj, movedTo, prop) {
        function movedNotice() {
          return () => {
            throw new Error([
              format('winston.%s was moved in winston@3.0.0.', prop),
              format('Use a winston.%s instead.', movedTo)
            ].join('\n'));
          };
        }

        Object.defineProperty(obj, prop, {
          get: movedNotice,
          set: movedNotice
        });
      },
      forProperties(obj, type, props) {
        props.forEach(prop => {
          const notice = exports.warn[type](prop);
          Object.defineProperty(obj, prop, {
            get: notice,
            set: notice
          });
        });
      }
    };