fix: attach original cause in xception

alvis · May 17, 2024 · 13055bc · 13055bc
1 parent f9f0b61
commit 13055bc
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/source/xception.ts b/source/xception.ts
@@ -35,7 +35,7 @@ export default function xception(
   exception: unknown, // string, error, Xception, { message: string, ...}
   options?: Options,
 ): Xception {
-  const cause = exception;
+  const cause = exception instanceof Xception ? exception.cause : exception;
 
   // when options.factory is provided, it's used to create Xception instances; otherwise, the default constructor is used
   const factory =

diff --git a/spec/xception.spec.ts b/spec/xception.spec.ts
@@ -38,6 +38,7 @@ describe('fn:xceptionalize', () => {
       expect(xceptionalizedError.message).toEqual('test');
       expect(xceptionalizedError.stack).toEqual(error.stack);
       expect(xceptionalizedError[$meta]).toEqual({});
+      expect(xceptionalizedError.cause).toEqual(error);
     }
   });
 
@@ -47,13 +48,16 @@ describe('fn:xceptionalize', () => {
     expect(xceptionalizedError.name).toEqual('Xception');
     expect(xceptionalizedError.message).toEqual('test');
     expect(xceptionalizedError[$meta]).toEqual({});
+    expect(xceptionalizedError.cause).toEqual({ message: 'test' });
   });
 
   it('should ignore any xception instance', () => {
-    const xceptionError = new Xception('test');
+    const cause = new Error('test');
+    const xceptionError = new Xception('test', { cause });
     const xceptionalizedError = xception(xceptionError);
 
     expect(xceptionalizedError).toEqual(xceptionError);
+    expect(xceptionalizedError.cause).toEqual(cause);
   });
 
   it('should throw an exception if the input is not a string, an error or an Xception', () => {