fix(parser): include error cause in ParseError (#2774)

Author: tusharf5

packages/parser/src/errors.ts

@@ -7,7 +7,7 @@ class ParseError extends Error {
     const errorMessage = options?.cause
       ? `${message}. This error was caused by: ${options?.cause.message}.`
       : message;
-    super(errorMessage);
+    super(errorMessage, options);
     this.name = 'ParseError';
   }
 }

packages/parser/tests/unit/envelope.test.ts

@@ -1,4 +1,10 @@
-import { z } from 'zod';
+/**
+ * Test decorator parser
+ *
+ * @group unit/parser
+ */
+
+import { z, ZodError } from 'zod';
 import { Envelope } from '../../src/envelopes/envelope.js';
 import { ParseError } from '../../src/errors.js';
 
@@ -74,5 +80,12 @@ describe('envelope: ', () => {
         Envelope.parse({ name: 123 }, z.object({ name: z.string() }))
       ).toThrow();
     });
+    it('includes the ZodError as the cause of the ParseError', () => {
+      try {
+        Envelope.parse('{"name": "John"}', z.object({ name: z.number() }));
+      } catch (error) {
+        expect((error as Error).cause).toBeInstanceOf(ZodError);
+      }
+    });
   });
 });