fix: only return word with desirable alpha characters (#654)

Author: Shinigami92

src/random.ts

@@ -242,7 +242,6 @@ export class Random {
    * @example
    * faker.random.word() // 'Seamless'
    */
-  // TODO: have ability to return specific type of word? As in: noun, adjective, verb, etc
   word(): string {
     const wordMethods = [
       'commerce.department',
@@ -278,9 +277,36 @@ export class Random {
       'name.jobType',
     ];
 
-    // randomly pick from the many faker methods that can generate words
-    const randomWordMethod = this.faker.random.arrayElement(wordMethods);
-    const result = this.faker.fake('{{' + randomWordMethod + '}}');
+    const bannedChars = [
+      '!',
+      '#',
+      '%',
+      '&',
+      '*',
+      ')',
+      '(',
+      '+',
+      '=',
+      '.',
+      '<',
+      '>',
+      '{',
+      '}',
+      '[',
+      ']',
+      ':',
+      ';',
+      "'",
+      '"',
+      '_',
+      '-',
+    ];
+    let result: string;
+    do {
+      // randomly pick from the many faker methods that can generate words
+      const randomWordMethod = this.faker.random.arrayElement(wordMethods);
+      result = this.faker.fake('{{' + randomWordMethod + '}}');
+    } while (bannedChars.some((char) => result.includes(char)));
     return this.faker.random.arrayElement(result.split(' '));
   }
 

test/random.spec.ts

@@ -1,5 +1,6 @@
-import { describe, expect, it, vi } from 'vitest';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
 import { faker } from '../src';
+import { times } from './support/times';
 
 describe('random', () => {
   describe('arrayElement', () => {
@@ -78,15 +79,72 @@ describe('random', () => {
   });
 
   describe('word', () => {
+    const bannedChars = [
+      '!',
+      '#',
+      '%',
+      '&',
+      '*',
+      ')',
+      '(',
+      '+',
+      '=',
+      '.',
+      '<',
+      '>',
+      '{',
+      '}',
+      '[',
+      ']',
+      ':',
+      ';',
+      "'",
+      '"',
+      '_',
+      '-',
+    ];
+
+    beforeEach(() => {
+      faker.locale = 'en';
+    });
+
     it('should return a random word', () => {
       const actual = faker.random.word();
 
       expect(actual).toBeTruthy();
       expect(actual).toBeTypeOf('string');
     });
+
+    it.each(times(50))(
+      'should only contain a word without undesirable non-alpha characters (run %i)',
+      () => {
+        const actual = faker.random.word();
+
+        expect(actual).not.satisfy((word: string) =>
+          bannedChars.some((char) => word.includes(char))
+        );
+      }
+    );
+
+    it.each(times(50))(
+      'should only contain a word without undesirable non-alpha characters, locale=zh_CN (run %i)',
+      () => {
+        faker.locale = 'zh_CN';
+
+        const actual = faker.random.word();
+
+        expect(actual).not.satisfy((word: string) =>
+          bannedChars.some((char) => word.includes(char))
+        );
+      }
+    );
   });
 
   describe('words', () => {
+    beforeEach(() => {
+      faker.locale = 'en';
+    });
+
     it('should return random words', () => {
       const actual = faker.random.words();
 

test/system.spec.ts

@@ -16,7 +16,7 @@ const seededRuns = [
       fileExt: 'chm',
       directoryPath: '/opt/bin',
       // TODO @prisis 2022-01-25: add a parameter to have the possibility to have one or two ext on file.
-      filePath: '/opt/bin/directives_multi_byte_table.p10.m21',
+      filePath: '/opt/bin/directives_savings_computer.qwd.jade',
       semver: '3.7.9',
     },
   },
@@ -39,8 +39,8 @@ const seededRuns = [
   {
     seed: 1211,
     expectations: {
-      fileName: 'turnpike_cross_platform_handcrafted.mka',
-      commonFileName: 'turnpike_cross_platform_handcrafted.mp4v',
+      fileName: 'turnpike_supervisor_chicken.mka',
+      commonFileName: 'turnpike_supervisor_chicken.mp4v',
       mimeType: 'text/vnd.fmi.flexstor',
       commonFileType: 'application',
       commonFileExt: 'htm',
@@ -98,18 +98,21 @@ describe('system', () => {
         it('should return common file types', () => {
           const fileExt = faker.system.commonFileExt();
           const extList = [
-            'pdf',
-            'mpeg',
-            'wav',
-            'png',
-            'jpeg',
             'gif',
-            'mp4v',
-            'mpeg',
             'htm',
+            'html',
+            'jpeg',
             'm2a',
+            'm2v',
+            'm3a',
             'mp4',
+            'mp4v',
+            'mpeg',
             'mpg',
+            'pdf',
+            'png',
+            'shtml',
+            'wav',
           ];
 
           expect(