fix: invalid value separator

src/pattern-validation.js

@@ -112,6 +112,9 @@ function validateFields(patterns, executablePatterns) {
 function validate(pattern) {
     if (typeof pattern !== 'string')
         throw new TypeError('pattern must be a string!');
+    const charRegex = new RegExp('^[a-zA-Z0-9-*/, ]+$');
+    if (!charRegex.test(pattern))
+        throw new TypeError('pattern includes illegal characters!');
 
     const patterns = pattern.split(' ');
     const executablePatterns = convertExpression(pattern).split(' ');

test/pattern-validation/validate-test.js

@@ -16,6 +16,18 @@ describe('pattern-validation', () => {
         }).to.throw('60 is a invalid expression for minute');
     });
 
+    it('should fail with invalid separator character', () =>  {
+        expect(() => {
+            validate('1;2;3 * * * *');
+        }).to.throw('pattern includes illegal characters!');
+    });
+
+    it('should not fail with valid separator character', () =>  {
+        expect(() => {
+            validate('1,2,3 * * * *');
+        }).to.not.throw();
+    });
+
     it('should fail without a string', () =>  {
         expect(() => {
             validate(50);