Add support for using short version for browser name in satisfies

CONTRIBUTING.md

@@ -12,12 +12,17 @@ If it's a small hot-fix, an improvement to the docs, or added support for a new
 
 Following these simple rules will really help maintain the repo! Thanks ❤️
 
-## Adding Tests
+## Adding Browser Support and Tests
 
 See the list in `test/acceptance/useragentstrings.yml` with example user agents and their expected `bowser` object.
 
-Whenever you add support for new browsers or notice a bug / mismatch, please update the list and
-check if all tests are still passing.
+Whenever you add support for new browsers or notice a bug / mismatch, please update the list and check if all tests are still passing. Also, make sure to keep the list of browser aliases up-to-date in `src/constants.js`.
+
+For creating aliases, keep the following guidelines in mind:
+ - use camelcase style for names
+ - whenever possible drop the word `browser` from the original browser name
+ - remove all dashes from the original browser name
+ - always check for possible duplicates
 
 ## Testing
 

src/constants.js

@@ -0,0 +1,41 @@
+// NOTE: this list must be up-to-date with browsers listed in
+// test/acceptance/useragentstrings.yml
+const BROWSER_ALIASES_MAP = {
+  'Amazon Silk': 'amazonSilk',
+  'Android Browser': 'android',
+  Bada: 'bada',
+  BlackBerry: 'blackBerry',
+  Chrome: 'chrome',
+  Chromium: 'chromium',
+  Epiphany: 'epiphany',
+  Firefox: 'firefox',
+  Focus: 'focus',
+  Generic: 'generic',
+  Googlebot: 'googlebot',
+  'Internet Explorer': 'ie',
+  'K-Meleon': 'kMeleon',
+  Maxthon: 'maxthon',
+  'Microsoft Edge': 'edge',
+  'MZ Browser': 'mz',
+  'NAVER Whale Browser': 'naver',
+  Opera: 'opera',
+  'Opera Coast': 'operaCoast',
+  PhantomJS: 'phantomJS',
+  Puffin: 'puffin',
+  QupZilla: 'qupZilla',
+  Safari: 'safari',
+  Sailfish: 'sailfish',
+  SeaMonkey: 'seaMonkey',
+  Sleipnir: 'sleipnir',
+  Swing: 'swing',
+  Tizen: 'tizen',
+  'UC Browser': 'uc',
+  Vivaldi: 'vivaldi',
+  'WebOS Browser': 'webOS',
+  WeChat: 'weChat',
+  'Yandex Browser': 'yandex',
+};
+
+module.exports = {
+  BROWSER_ALIASES_MAP,
+};

src/parser.js

@@ -392,7 +392,7 @@ class Parser {
 
     if (browsersCounter > 0) {
       const browserNames = Object.keys(browsers);
-      const matchingDefinition = browserNames.find(name => (this.isBrowser(name)));
+      const matchingDefinition = browserNames.find(name => (this.isBrowser(name, true)));
 
       if (matchingDefinition !== void 0) {
         return this.compareVersion(browsers[matchingDefinition]);
@@ -402,8 +402,15 @@ class Parser {
     return undefined;
   }
 
-  isBrowser(browserName) {
-    return this.getBrowserName(true) === String(browserName).toLowerCase();
+  isBrowser(browserName, loosely = false) {
+    const defaultBrowserName = this.getBrowserName();
+    const possibleNames = [defaultBrowserName.toLowerCase()];
+
+    if (loosely) {
+      possibleNames.push(getBrowserAlias(defaultBrowserName).toLowerCase());
+    }
+
+    return possibleNames.indexOf(browserName.toLowerCase()) !== -1;
   }
 
   compareVersion(version) {

src/utils.js

@@ -1,3 +1,5 @@
+import { BROWSER_ALIASES_MAP } from './constants';
+
 export default class Utils {
   /**
    * Get first matched item for a string
@@ -187,4 +189,17 @@ export default class Utils {
     }
     return result;
   }
+
+  /**
+   * Get short version/alias for a browser name
+   *
+   * @example
+   *   getBrowserAlias('Microsoft Edge') // edge
+   *
+   * @param  {string} browserName
+   * @return {string}
+   */
+  static getBrowserAlias(browserName) {
+    return BROWSER_ALIASES_MAP[browserName];
+  }
 }

test/unit/parser.js

@@ -5,6 +5,9 @@ import Parser from '../../src/parser';
 const UA = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36 OPR/43.0.2442.1165';
 const parser = new Parser(UA, true);
 
+const EDGE_UA = 'Mozilla/5.0 (Linux; Android 8.0; Pixel XL Build/OPP3.170518.006) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.0 Mobile Safari/537.36 EdgA/41.1.35.1';
+const edgeParser = new Parser(EDGE_UA, true);
+
 test('constructor', (t) => {
   t.truthy(parser instanceof Parser);
 });
@@ -145,6 +148,13 @@ test('Parser.satisfies for versionless UA strings', (t) => {
   }), void 0);
 });
 
+test('Parser.satisfies should consider aliases while handling browsers', (t) => {
+  t.is(edgeParser.satisfies({ 'Microsoft Edge': '=41.1.35.1' }), true);
+  t.is(edgeParser.satisfies({ 'microsoft edge': '=41.1.35.1' }), true);
+  t.is(edgeParser.satisfies({ 'edge': '=41.1.35.1' }), true);
+  t.is(edgeParser.satisfies({ 'Edge': '=41.1.35.1' }), true);
+});
+
 test('Parser.is should pass', (t) => {
   t.is(parser.is('opera'), true);
   t.is(parser.is('desktop'), true);
@@ -158,3 +168,19 @@ test('Parser.some should pass', (t) => {
   t.is(parser.some([]), false);
   t.is(parser.some(), false);
 });
+
+test('Parser.isBrowser should pass when not loosely checking', (t) => {
+  t.is(edgeParser.isBrowser('Microsoft Edge', false), true);
+  t.is(edgeParser.isBrowser('microsoft edge', false), true);
+  t.is(edgeParser.isBrowser('mIcrosoft eDge', false), true);
+  t.is(edgeParser.isBrowser('edge', false), false);
+  t.is(edgeParser.isBrowser('Edge', false), false);
+});
+
+test('Parser.isBrowser should pass when loosely checking', (t) => {
+  t.is(edgeParser.isBrowser('Microsoft Edge', true), true);
+  t.is(edgeParser.isBrowser('microsoft edge', true), true);
+  t.is(edgeParser.isBrowser('mIcrosoft eDge', true), true);
+  t.is(edgeParser.isBrowser('edge', true), true);
+  t.is(edgeParser.isBrowser('Edge', true), true);
+});

test/unit/utils.js

@@ -1,5 +1,6 @@
 import test from 'ava';
 import {
+  getBrowserAlias,
   getFirstMatch,
   getWindowsVersionName,
   compareVersions,
@@ -50,3 +51,8 @@ test('compareVersions', (t) => {
     t.is(compareVersions(versionA, versionB, isLoose), result, `version ${versionA} should be ${matching} version ${versionB}`);
   });
 });
+
+test('getBrowserAlias', (t) => {
+  t.is(getBrowserAlias('Microsoft Edge'), 'edge');
+  t.is(getBrowserAlias('Unexisting Browser'), void 0);
+});