validate regex

index.test.js

@@ -13,6 +13,7 @@ import {NumberValidator} from './js/validators/NumberValidator';
 import {IntegerValidator} from './js/validators/IntegerValidator';
 import {DecimalValidator} from './js/validators/DecimalValidator';
 import {ConfirmationValidator} from './js/validators/ConfirmationValidator.js';
+import {RegexValidator} from './js/validators/RegexValidator.js';
 
 function testSuccess(response)
 {
@@ -243,6 +244,26 @@ test(
   }
 );
 
+test(
+  'RegexValidator',
+  () =>
+  {
+    let v = new RegexValidator('not valid regex');
+    testFailure(v.validate('test'), ['not a valid regular expression']);
+
+    v = new RegexValidator({});
+    testFailure(v.validate('test'), ['not a valid regular expression']);
+
+    v = new RegexValidator('/test/', 'not test');
+    testFailure(v.validate('abc'), ['not test']);
+
+    v = new RegexValidator('/test/');
+    testFailure(v.validate('abc'), ['does not match regular expression']);
+    testFailure(v.validate('1'), ['does not match regular expression']);
+    testSuccess(v.validate('test'));
+  }
+);
+
 test(
   'IntegerValidator',
   () =>

js/validators/RegexValidator.js

@@ -20,6 +20,10 @@ export class RegexValidator extends Validator
     if(typeof regex === 'string')
     {
       const parts = /\/(.*)\/(.*)/.exec(regex);
+      if(!parts)
+      {
+        return ValidationResponse.error(['not a valid regular expression']);
+      }
       regex = new RegExp(parts[1], parts[2]);
     }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@packaged/validate",
-  "version": "3.0.2",
+  "version": "3.0.3",
   "main": "index.js",
   "repository": "[email protected]:packaged/validate",
   "author": "Tom Kay <[email protected]>",