fix(ValidationError): use Error.captureStackTrace for err.stack handling (#14)

Author: michael-ciniawsky

src/ValidationError.js

@@ -1,16 +1,19 @@
 class ValidationError extends Error {
-  constructor(err, name) {
-    super(err);
+  constructor(errors, name) {
+    super();
 
-    this.err = err;
-    this.stack = false;
+    this.name = 'ValidationError';
 
     this.message = `Validation Error\n\n${name || ''} Invalid Options\n\n`;
 
-    err.forEach((msg) => {
-      this.message += `options${msg.dataPath} ${msg.message}\n`;
+    errors.forEach((err) => {
+      this.message += `options${err.dataPath} ${err.message}\n`;
     });
 
+    this.errors = errors;
+
+    Error.captureStackTrace(this, this.constructor);
+
     return this;
   }
 }

test/index.test.js

@@ -40,13 +40,13 @@ describe('Error', () => {
   test('should have errors for every key in options', () => {
     try {
       validate();
-    } catch (error) {
-      const errors = error.err.map(e => e.dataPath);
+    } catch (err) {
+      const errors = err.errors.map(e => e.dataPath);
 
       const expected = ['.string', '.array', '.object.prop', '.boolean', '.type', '.instance'];
 
       expect(errors).toMatchObject(expected);
-      expect(error.err).toMatchSnapshot();
+      expect(err.errors).toMatchSnapshot();
     }
   });
 });