fix: Weak password throws AuthWeakPasswordException. (#897)

fix: week password throws the correct exception

Author: dshukertjr

packages/gotrue/lib/src/fetch.dart

@@ -58,7 +58,7 @@ class GotrueFetch {
       throw AuthWeakPasswordException(
         message: _getErrorMessage(data),
         statusCode: error.statusCode.toString(),
-        reasons: data['weak_password']['reasons'],
+        reasons: List<String>.from(data['weak_password']['reasons']),
       );
     }
 

packages/gotrue/test/client_test.dart

@@ -102,6 +102,15 @@ void main() {
       expect(data?.user.id, isA<String>());
       expect(data?.user.userMetadata!['Hello'], 'World');
     });
+    test('signUp() with week password throws AuthWeakPasswordException',
+        () async {
+      try {
+        await client.signUp(email: newEmail, password: '123');
+        fail('signUp with week password should throw exception');
+      } catch (error) {
+        expect(error, isA<AuthWeakPasswordException>());
+      }
+    });
 
     test('Parsing invalid URL should throw', () async {
       const expiresIn = 12345;