From 507daf93b366c9eef91dfe3bceb3df000ef9fe1e Mon Sep 17 00:00:00 2001
From: Eric Willigers <keiravillekode@gmail.com>
Date: Mon, 20 Jul 2026 20:01:27 +1000
Subject: [PATCH] perfect-numbers: sync tests

---
 exercises/practice/perfect-numbers/.meta/config.json         | 2 +-
 exercises/practice/perfect-numbers/.meta/tests.toml          | 3 +++
 exercises/practice/perfect-numbers/perfect_numbers_tests.plt | 4 ++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/exercises/practice/perfect-numbers/.meta/config.json b/exercises/practice/perfect-numbers/.meta/config.json
index 028c984a..2fb3c131 100644
--- a/exercises/practice/perfect-numbers/.meta/config.json
+++ b/exercises/practice/perfect-numbers/.meta/config.json
@@ -15,5 +15,5 @@
   },
   "blurb": "Determine if a number is perfect, abundant, or deficient based on Nicomachus' (60 - 120 CE) classification scheme for positive integers.",
   "source": "Taken from Chapter 2 of Functional Thinking by Neal Ford.",
-  "source_url": "https://www.oreilly.com/library/view/functional-thinking/9781449365509/"
+  "source_url": "https://nealford.com/books/functionalthinking.html"
 }
diff --git a/exercises/practice/perfect-numbers/.meta/tests.toml b/exercises/practice/perfect-numbers/.meta/tests.toml
index ec288891..81d48408 100644
--- a/exercises/practice/perfect-numbers/.meta/tests.toml
+++ b/exercises/practice/perfect-numbers/.meta/tests.toml
@@ -27,6 +27,9 @@ description = "Abundant numbers -> Medium abundant number is classified correctl
 [ec7792e6-8786-449c-b005-ce6dd89a772b]
 description = "Abundant numbers -> Large abundant number is classified correctly"
 
+[05f15b93-849c-45e9-9c7d-1ea131ef7d10]
+description = "Abundant numbers -> Perfect square abundant number is classified correctly"
+
 [e610fdc7-2b6e-43c3-a51c-b70fb37413ba]
 description = "Deficient numbers -> Smallest prime deficient number is classified correctly"
 
diff --git a/exercises/practice/perfect-numbers/perfect_numbers_tests.plt b/exercises/practice/perfect-numbers/perfect_numbers_tests.plt
index dc8b50ec..d2df4580 100644
--- a/exercises/practice/perfect-numbers/perfect_numbers_tests.plt
+++ b/exercises/practice/perfect-numbers/perfect_numbers_tests.plt
@@ -30,6 +30,10 @@ pending :-
         classify(33550335, Classification),
         Classification == abundant.
 
+    test(perfect_square_abundant_number_is_classified_correctly, condition(pending)) :-
+        classify(196, Classification),
+        Classification == abundant.
+
     test(smallest_prime_deficient_number_is_classified_correctly, condition(pending)) :-
         classify(2, Classification),
         Classification == deficient.