Added files for Juan

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/.travis.yml

@@ -0,0 +1,3 @@
+language: node_js
+node_js:
+  - "node"

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Evgeniy Pavlov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/README.md

@@ -0,0 +1,218 @@
+# loglevel-plugin-prefix
+
+Plugin for [loglevel](https://github.com/pimterry/loglevel) message prefixing.
+
+[![NPM version](https://img.shields.io/npm/v/loglevel-plugin-prefix.svg?style=flat-square)](https://www.npmjs.com/package/loglevel-plugin-prefix)[![Build Status](https://img.shields.io/travis/kutuluk/loglevel-plugin-prefix/master.svg?style=flat-square)](https://travis-ci.org/kutuluk/loglevel-plugin-prefix)
+
+## Installation
+
+```sh
+npm install loglevel-plugin-prefix
+```
+
+## API
+
+**This plugin is under active development and should be considered as an unstable. No guarantees regarding API stability are made. Backward compatibility is guaranteed only by path releases.**
+
+#### `reg(loglevel)`
+
+This method registers plugin for loglevel. This method must be called at least once before any call to the apply method. Repeated calls to this method are ignored.
+
+#### Parameters
+
+`loglevel` - the root logger, imported from loglevel module
+
+#### `apply(logger, options)`
+
+This method applies the plugin to the logger. Before using this method, the `reg` method must be called, otherwise a warning will be logged. **From the next release, the call apply before reg will throw an error.**
+
+#### Parameters
+
+`logger` - any logger of loglevel
+
+`options` - an optional configuration object
+
+```javascript
+var defaults = {
+  template: '[%t] %l:',
+  levelFormatter: function (level) {
+    return level.toUpperCase();
+  },
+  nameFormatter: function (name) {
+    return name || 'root';
+  },
+  timestampFormatter: function (date) {
+    return date.toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, '$1');
+  },
+  format: undefined
+};
+```
+
+Plugin formats the prefix using `template` option as a printf-like format. The `template` is a string containing zero or more placeholder tokens. Each placeholder token is replaced with the value from loglevel messages parameters. Supported placeholders are:
+
+- `%l` - level of message
+- `%n` - name of logger
+- `%t` - timestamp of message
+
+The `levelFormatter`, `nameFormatter` and `timestampFormatter` is a functions for formatting corresponding values.
+
+Alternatively, you can use `format` option. This is a function that receives formatted values (level, name, timestamp) and should returns a prefix string.
+
+If both `format` and` template` are present in the configuration, the `template` parameter is ignored. When both these parameters are missing in the configuration, the inherited behavior is used.
+
+## Usage
+
+### Browser directly
+```html
+<script src="https://unpkg.com/loglevel/dist/loglevel.min.js"></script>
+<script src="https://unpkg.com/loglevel-plugin-prefix@^0.8/dist/loglevel-plugin-prefix.min.js"></script>
+
+<script>
+  var logger = log.noConflict();
+  var prefixer = prefix.noConflict();
+  prefixer.reg(logger);
+  prefixer.apply(logger);
+  logger.warn('prefixed message');
+</script>
+```
+
+Output
+```
+[16:53:46] WARN: prefixed message
+```
+
+### Node
+```javascript
+const chalk = require('chalk');
+const log = require('loglevel');
+const prefix = require('loglevel-plugin-prefix');
+
+const colors = {
+  TRACE: chalk.magenta,
+  DEBUG: chalk.cyan,
+  INFO: chalk.blue,
+  WARN: chalk.yellow,
+  ERROR: chalk.red,
+};
+
+prefix.reg(log);
+log.enableAll();
+
+prefix.apply(log, {
+  format(level, name, timestamp) {
+    return `${chalk.gray(`[${timestamp}]`)} ${colors[level.toUpperCase()](level)} ${chalk.green(`${name}:`)}`;
+  },
+});
+
+prefix.apply(log.getLogger('critical'), {
+  format(level, name, timestamp) {
+    return chalk.red.bold(`[${timestamp}] ${level} ${name}:`);
+  },
+});
+
+log.trace('trace');
+log.debug('debug');
+log.getLogger('critical').info('Something significant happened');
+log.log('log');
+log.info('info');
+log.warn('warn');
+log.error('error');
+```
+
+Output
+
+![output](https://raw.githubusercontent.com/kutuluk/loglevel-plugin-prefix/master/colored.png "output")
+
+## Custom options
+
+```javascript
+const log = require('loglevel');
+const prefix = require('loglevel-plugin-prefix');
+
+prefix.reg(log);
+log.enableAll();
+
+prefix.apply(log, {
+  template: '[%t] %l (%n) static text:',
+  levelFormatter(level) {
+    return level.toUpperCase();
+  },
+  nameFormatter(name) {
+    return name || 'global';
+  },
+  timestampFormatter(date) {
+    return date.toISOString();
+  },
+});
+
+log.info('%s prefix', 'template');
+
+const fn = (level, name, timestamp) => `[${timestamp}] ${level} (${name}) static text:`;
+
+prefix.apply(log, { format: fn });
+
+log.info('%s prefix', 'functional');
+
+prefix.apply(log, { template: '[%t] %l (%n) static text:' });
+
+log.info('again %s prefix', 'template');
+```
+
+Output
+```
+[2017-05-29T12:53:46.000Z] INFO (global) static text: template prefix
+[2017-05-29T12:53:46.000Z] INFO (global) static text: functional prefix
+[2017-05-29T12:53:46.000Z] INFO (global) static text: again template prefix
+```
+
+## Option inheritance
+
+```javascript
+const log = require('loglevel');
+const prefix = require('loglevel-plugin-prefix');
+
+prefix.reg(log);
+log.enableAll();
+
+log.info('root');
+
+const chicken = log.getLogger('chicken');
+chicken.info('chicken');
+
+prefix.apply(chicken, { template: '%l (%n):' });
+chicken.info('chicken');
+
+prefix.apply(log);
+log.info('root');
+
+const egg = log.getLogger('egg');
+egg.info('egg');
+
+const fn = (level, name) => `${level} (${name}):`;
+
+prefix.apply(egg, { format: fn });
+egg.info('egg');
+
+prefix.apply(egg, {
+  levelFormatter(level) {
+    return level.toLowerCase();
+  },
+});
+egg.info('egg');
+
+chicken.info('chicken');
+log.info('root');
+```
+
+Output
+```
+root
+chicken
+INFO (chicken): chicken
+[16:53:46] INFO: root
+[16:53:46] INFO: egg
+INFO (egg): egg
+info (egg): egg
+INFO (chicken): chicken
+[16:53:46] INFO: root
+```

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/dist/loglevel-plugin-prefix.min.js

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+!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof module&&module.exports?module.exports=t():e.prefix=t(e)}(this,function(e){"use strict";var n,t,a={template:"[%t] %l:",levelFormatter:function(e){return e.toUpperCase()},nameFormatter:function(e){return e||"root"},timestampFormatter:function(e){return e.toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/,"$1")},format:void 0},d={},r={reg:function(e){if(!e||!e.getLogger)throw new TypeError("Argument is not a root logger");n=e},apply:function(e,t){if(!e||!e.setLevel)throw new TypeError("Argument is not a logger");var r=e.methodFactory,s=e.name||"",o=d[s]||d[""]||a;return d[s]||(e.methodFactory=function(i,e,f){var p=r(i,e,f),m=d[f]||d[""],u=-1!==m.template.indexOf("%t"),c=-1!==m.template.indexOf("%l"),g=-1!==m.template.indexOf("%n");return function(){for(var e="",t=arguments.length,r=Array(t),o=0;o<t;o++)r[o]=arguments[o];if(s||!d[f]){var n=m.timestampFormatter(new Date),a=m.levelFormatter(i),l=m.nameFormatter(f);m.format?e+=m.format(a,l,n):(e+=m.template,u&&(e=e.replace(/%t/,n)),c&&(e=e.replace(/%l/,a)),g&&(e=e.replace(/%n/,l))),r.length&&"string"==typeof r[0]?r[0]=e+" "+r[0]:r.unshift(e)}p.apply(void 0,r)}}),(t=t||{}).template&&(t.format=void 0),d[s]=function(e){for(var t,r=1,o=arguments.length;r<o;r++)for(t in arguments[r])Object.prototype.hasOwnProperty.call(arguments[r],t)&&(e[t]=arguments[r][t]);return e}({},o,t),e.setLevel(e.getLevel()),n||e.warn("It is necessary to call the function reg() of loglevel-plugin-prefix before calling apply. From the next release, it will throw an error. See more: https://github.com/kutuluk/loglevel-plugin-prefix/blob/master/README.md"),e}};return e&&(t=e.prefix,r.noConflict=function(){return e.prefix===r&&(e.prefix=t),r}),r});

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/examples/.eslintrc.json

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+{
+    "extends": "airbnb-base",
+    "env": {
+        "es6": true
+    },
+    "rules": {}
+}

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/examples/inheritance.js

@@ -0,0 +1,35 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+const log = require('loglevel');
+const prefix = require('../lib/loglevel-plugin-prefix');
+
+prefix.reg(log);
+log.enableAll();
+
+log.info('root');
+
+const chicken = log.getLogger('chicken');
+chicken.info('chicken');
+
+prefix.apply(chicken, { template: '%l (%n):' });
+chicken.info('chicken');
+
+prefix.apply(log);
+log.info('root');
+
+const egg = log.getLogger('egg');
+egg.info('egg');
+
+const fn = (level, name) => `${level} (${name}):`;
+
+prefix.apply(egg, { format: fn });
+egg.info('egg');
+
+prefix.apply(egg, {
+  levelFormatter(level) {
+    return level.toLowerCase();
+  },
+});
+egg.info('egg');
+
+chicken.info('chicken');
+log.info('root');

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/examples/node.js

@@ -0,0 +1,36 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+const log = require('loglevel');
+// eslint-disable-next-line import/no-extraneous-dependencies
+const chalk = require('chalk');
+const prefix = require('../lib/loglevel-plugin-prefix');
+
+const colors = {
+  TRACE: chalk.magenta,
+  DEBUG: chalk.cyan,
+  INFO: chalk.blue,
+  WARN: chalk.yellow,
+  ERROR: chalk.red,
+};
+
+prefix.reg(log);
+log.enableAll();
+
+prefix.apply(log, {
+  format(level, name, timestamp) {
+    return `${chalk.gray(`[${timestamp}]`)} ${colors[level.toUpperCase()](level)} ${chalk.green(`${name}:`)}`;
+  },
+});
+
+prefix.apply(log.getLogger('critical'), {
+  format(level, name, timestamp) {
+    return chalk.red.bold(`[${timestamp}] ${level} ${name}:`);
+  },
+});
+
+log.trace('trace');
+log.debug('debug');
+log.getLogger('critical').info('Something significant happened');
+log.log('log');
+log.info('info');
+log.warn('warn');
+log.error('error');

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/examples/options.js

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+// eslint-disable-next-line import/no-extraneous-dependencies
+const log = require('loglevel');
+const prefix = require('../lib/loglevel-plugin-prefix');
+
+prefix.reg(log);
+log.enableAll();
+
+prefix.apply(log, {
+  template: '[%t] %l (%n) static text:',
+  timestampFormatter(date) {
+    return date.toISOString();
+  },
+  levelFormatter(level) {
+    return level.toUpperCase();
+  },
+  nameFormatter(name) {
+    return name || 'global';
+  },
+});
+
+log.info('%s prefix', 'template');
+
+const fn = (level, name, timestamp) => `[${timestamp}] ${level} (${name}) static text:`;
+
+prefix.apply(log, { format: fn });
+
+log.info('%s prefix', 'functional');
+
+prefix.apply(log, { template: '[%t] %l (%n) static text:' });
+
+log.info('again %s prefix', 'template');

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/index.d.ts

@@ -0,0 +1,14 @@
+declare module 'loglevel-plugin-prefix' {
+    import { Logger } from 'loglevel';
+
+    interface LoglevelPluginPrefixOptions {
+        template?: string;
+        levelFormatter?: (level: string) => string;
+        nameFormatter?: (name: string | undefined) => string;
+        timestampFormatter?: (date: Date) => string;
+        format?: (level: string, name: string | undefined, timestamp: Date) => string | undefined;
+    }
+
+    function reg(loglevel: Logger): void;
+    function apply(logger: Logger, options?: LoglevelPluginPrefixOptions): Logger;
+}

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/lib/.eslintrc.json

@@ -0,0 +1,15 @@
+{
+    "extends": "airbnb-base/legacy",
+    "env": {
+        "browser": true,
+        "amd": true,
+        "es6": false
+    },
+    "rules": {
+        "no-param-reassign": "off",
+        "prefer-rest-params": "off",
+        "no-restricted-syntax": "off",
+        "no-plusplus": "off",
+        "func-names": "off"
+    }
+}

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/lib/loglevel-plugin-prefix.js

@@ -0,0 +1,149 @@
+(function (root, factory) {
+  if (typeof define === 'function' && define.amd) {
+    define(factory);
+  } else if (typeof module === 'object' && module.exports) {
+    module.exports = factory();
+  } else {
+    root.prefix = factory(root);
+  }
+}(this, function (root) {
+  'use strict';
+
+  var merge = function (target) {
+    var i = 1;
+    var length = arguments.length;
+    var key;
+    for (; i < length; i++) {
+      for (key in arguments[i]) {
+        if (Object.prototype.hasOwnProperty.call(arguments[i], key)) {
+          target[key] = arguments[i][key];
+        }
+      }
+    }
+    return target;
+  };
+
+  var defaults = {
+    template: '[%t] %l:',
+    levelFormatter: function (level) {
+      return level.toUpperCase();
+    },
+    nameFormatter: function (name) {
+      return name || 'root';
+    },
+    timestampFormatter: function (date) {
+      return date.toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, '$1');
+    },
+    format: undefined
+  };
+
+  var loglevel;
+  var configs = {};
+
+  var reg = function (rootLogger) {
+    if (!rootLogger || !rootLogger.getLogger) {
+      throw new TypeError('Argument is not a root logger');
+    }
+    loglevel = rootLogger;
+  };
+
+  var apply = function (logger, config) {
+    if (!logger || !logger.setLevel) {
+      throw new TypeError('Argument is not a logger');
+    }
+
+    /* eslint-disable vars-on-top */
+    var originalFactory = logger.methodFactory;
+    var name = logger.name || '';
+    var parent = configs[name] || configs[''] || defaults;
+    /* eslint-enable vars-on-top */
+
+    function methodFactory(methodName, logLevel, loggerName) {
+      var originalMethod = originalFactory(methodName, logLevel, loggerName);
+      var options = configs[loggerName] || configs[''];
+
+      var hasTimestamp = options.template.indexOf('%t') !== -1;
+      var hasLevel = options.template.indexOf('%l') !== -1;
+      var hasName = options.template.indexOf('%n') !== -1;
+
+      return function () {
+        var content = '';
+
+        var length = arguments.length;
+        var args = Array(length);
+        var key = 0;
+        for (; key < length; key++) {
+          args[key] = arguments[key];
+        }
+
+        // skip the root method for child loggers to prevent duplicate logic
+        if (name || !configs[loggerName]) {
+          /* eslint-disable vars-on-top */
+          var timestamp = options.timestampFormatter(new Date());
+          var level = options.levelFormatter(methodName);
+          var lname = options.nameFormatter(loggerName);
+          /* eslint-enable vars-on-top */
+
+          if (options.format) {
+            content += options.format(level, lname, timestamp);
+          } else {
+            content += options.template;
+            if (hasTimestamp) {
+              content = content.replace(/%t/, timestamp);
+            }
+            if (hasLevel) content = content.replace(/%l/, level);
+            if (hasName) content = content.replace(/%n/, lname);
+          }
+
+          if (args.length && typeof args[0] === 'string') {
+            // concat prefix with first argument to support string substitutions
+            args[0] = content + ' ' + args[0];
+          } else {
+            args.unshift(content);
+          }
+        }
+
+        originalMethod.apply(undefined, args);
+      };
+    }
+
+    if (!configs[name]) {
+      logger.methodFactory = methodFactory;
+    }
+
+    // for remove inherited format option if template option preset
+    config = config || {};
+    if (config.template) config.format = undefined;
+
+    configs[name] = merge({}, parent, config);
+
+    logger.setLevel(logger.getLevel());
+
+    if (!loglevel) {
+      logger.warn(
+        'It is necessary to call the function reg() of loglevel-plugin-prefix before calling apply. From the next release, it will throw an error. See more: https://github.com/kutuluk/loglevel-plugin-prefix/blob/master/README.md'
+      );
+    }
+
+    return logger;
+  };
+
+  var api = {
+    reg: reg,
+    apply: apply
+  };
+
+  var save;
+
+  if (root) {
+    save = root.prefix;
+    api.noConflict = function () {
+      if (root.prefix === api) {
+        root.prefix = save;
+      }
+      return api;
+    };
+  }
+
+  return api;
+}));

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "loglevel-plugin-prefix",
+  "description": "Plugin for loglevel message prefixing",
+  "author": {
+    "name": "kutuluk"
+  },
+  "keywords": [
+    "log",
+    "logger",
+    "logging",
+    "browser",
+    "node",
+    "prefix",
+    "colored",
+    "loglevel",
+    "plugin"
+  ],
+  "homepage": "https://github.com/kutuluk/loglevel-plugin-prefix",
+  "bugs": {
+    "url": "https://github.com/kutuluk/loglevel-plugin-prefix/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:kutuluk/loglevel-plugin-prefix.git"
+  },
+  "license": "MIT",
+  "version": "0.8.4",
+  "main": "./lib/loglevel-plugin-prefix",
+  "types": "index.d.ts",
+  "scripts": {
+    "eslint": "eslint ./lib/loglevel-plugin-prefix.js",
+    "test": "mocha",
+    "example": "node ./example/example.js",
+    "uglifyjs": "uglifyjs ./lib/loglevel-plugin-prefix.js -o ./dist/loglevel-plugin-prefix.min.js -c -m",
+    "build": "npm install && npm run eslint && npm run test && npm run uglifyjs"
+  },
+  "devDependencies": {
+    "chai": "^4.1.2",
+    "chalk": "^2.4.1",
+    "eslint": "^3.19.0",
+    "eslint-config-airbnb-base": "^11.3.2",
+    "eslint-plugin-chai-friendly": "^0.3.6",
+    "eslint-plugin-import": "^2.12.0",
+    "loglevel": "^1.6.1",
+    "loglevel-plugin-mock": "^0.1.0",
+    "mocha": "^3.5.3",
+    "sinon": "^2.4.1",
+    "uglify-js": "^3.4.0"
+  }
+}

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/test/.eslintrc.json

@@ -0,0 +1,15 @@
+{
+    "extends": "airbnb-base",
+    "plugins": [
+        "chai-friendly"
+    ],
+    "env": {
+        "mocha": true,
+        "es6": true
+    },
+    "rules": {
+        "no-unused-expressions": "off",
+        "chai-friendly/no-unused-expressions": 2,
+        "comma-dangle": "off"
+    }
+}

ExACTRegressionScripts/node_modules/loglevel-plugin-prefix/test/test.js

@@ -0,0 +1,108 @@
+const expect = require('chai').expect;
+const loglevel = require('loglevel');
+const other = require('loglevel-plugin-mock');
+const sinon = require('sinon');
+const prefix = require('../lib/loglevel-plugin-prefix');
+
+const spy = sinon.spy();
+
+loglevel.enableAll();
+
+describe('API', () => {
+  it('Methods', () => {
+    expect(prefix).to.have.property('apply').with.be.a('function');
+    expect(prefix).to.have.property('reg').with.be.a('function');
+    expect(prefix).not.to.have.property('noConflict');
+  });
+
+  it('Reg: empty arguments', () => {
+    expect(prefix.reg).to.throw(TypeError, 'Argument is not a root logger');
+  });
+
+  it('Reg: incorrect argument', () => {
+    expect(() => prefix.reg('logger')).to.throw(TypeError, 'Argument is not a root logger');
+  });
+
+  it('Apply: empty arguments', () => {
+    expect(prefix.apply).to.throw(TypeError, 'Argument is not a logger');
+  });
+
+  it('Apply: incorrect argument', () => {
+    expect(() => prefix.apply('logger')).to.throw(TypeError, 'Argument is not a logger');
+  });
+});
+
+describe('Prefix', () => {
+  other.apply(loglevel, { method: spy });
+
+  beforeEach(() => {
+    spy.reset();
+  });
+
+  it('Root applying', () => {
+    expect(() => prefix.apply(loglevel)).to.not.throw();
+  });
+
+  it('Root reapplyng', () => {
+    prefix.apply(loglevel, { template: '%l (%n):' });
+    loglevel.info('test');
+    expect(spy.calledWith('INFO (root): test')).to.be.true;
+  });
+
+  it('Format', () => {
+    prefix.apply(loglevel, {
+      format: (level, logger) => `${level} (${logger}):`
+    });
+
+    loglevel.info('test');
+
+    expect(spy.calledWith('INFO (root): test')).to.be.true;
+  });
+
+  it('Unformat', () => {
+    prefix.apply(loglevel, { template: '%l:' });
+
+    loglevel.info('test');
+
+    expect(spy.calledWith('INFO: test')).to.be.true;
+  });
+
+  it('The prefix must be combined with the first argument, if it is a string', () => {
+    prefix.apply(loglevel, { template: '%l:' });
+
+    loglevel.info('foo %s', 'bar');
+    expect(spy.calledWith('INFO: foo %s', 'bar')).to.be.true;
+  });
+
+  it('All methods of the previous plugin should be called', () => {
+    prefix.apply(loglevel);
+
+    // for warn in apply
+    spy.reset();
+
+    loglevel.trace();
+    loglevel.debug();
+    loglevel.info();
+    loglevel.warn();
+    loglevel.error();
+    expect(spy.callCount).to.equal(5);
+  });
+
+  it('Child applying', () => {
+    const child = loglevel.getLogger('child');
+    prefix.apply(child, { template: '%l (%n):' });
+    child.info('test');
+    expect(spy.calledWith('INFO (child): test')).to.be.true;
+  });
+
+  it('Child reapplyng', () => {
+    const child = loglevel.getLogger('child');
+    prefix.apply(child, {
+      levelFormatter(level) {
+        return level;
+      }
+    });
+    child.info('test');
+    expect(spy.calledWith('info (child): test')).to.be.true;
+  });
+});