fix(core): added undefined check for pascal util (#1025)

packages/core/src/utils/case.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest';
-import { pascal } from './case';
+import { camel, pascal } from './case';
 import { kebab } from './case';
 
 describe('pascal case testing', () => {
@@ -26,23 +26,35 @@ describe('pascal case testing', () => {
   it('should handle some casing edge cases', () => {
     expect(pascal('foo_bar_API')).toBe('FooBarAPI');
   });
+
+  it('should handle empty values', () => {
+    expect(pascal('')).toBe('');
+    expect(pascal(undefined)).toBe('');
+  });
+});
+
+describe('camel case testing', () => {
+  it('should handle empty values', () => {
+    expect(camel('')).toBe('');
+    expect(camel(undefined)).toBe('');
+  });
 });
 
 describe('kebab-case a few examples', () => {
-    //fix #937, issue #936, results in kebab routine being potentially called
-    //on a string **repeatedly**.
-    //Do some basic kebab case checks
-    //Additionally, test that the kebab routine is Idempotent
-    [
-        ['Pet', 'pet'],
-        ['pet', 'pet'],
-        ['PetTag', 'pet-tag'],
-        ['pet-tag', 'pet-tag'],
-        ['PetTagWithFourWords', 'pet-tag-with-four-words'],
-        ['pet-tag-with-four-words', 'pet-tag-with-four-words'],
-    ].forEach(([input, expected]) => {
-        it(`should process ${input} to ${expected}`, () => {
-            expect(kebab(input)).toBe(expected);
-        });
+  //fix #937, issue #936, results in kebab routine being potentially called
+  //on a string **repeatedly**.
+  //Do some basic kebab case checks
+  //Additionally, test that the kebab routine is Idempotent
+  [
+    ['Pet', 'pet'],
+    ['pet', 'pet'],
+    ['PetTag', 'pet-tag'],
+    ['pet-tag', 'pet-tag'],
+    ['PetTagWithFourWords', 'pet-tag-with-four-words'],
+    ['pet-tag-with-four-words', 'pet-tag-with-four-words'],
+  ].forEach(([input, expected]) => {
+    it(`should process ${input} to ${expected}`, () => {
+      expect(kebab(input)).toBe(expected);
     });
+  });
 });

packages/core/src/utils/case.ts

@@ -102,7 +102,7 @@ export const pascal = (s: string) => {
     s = low.call(s);
   }
 
-  const pascalString = (s.match(/[a-zA-Z0-9]+/g) || [])
+  const pascalString = (s?.match(/[a-zA-Z0-9]+/g) || [])
     .map((w) => w.charAt(0).toUpperCase() + w.slice(1))
     .join('');