From 2f86326d5c41baedf45aed488c0bd06191943dbd Mon Sep 17 00:00:00 2001
From: myrmidex <myrmidex@myrmidex.net>
Date: Mon, 10 Aug 2026 01:25:17 +0200
Subject: [PATCH] 116 - Pin the premise that a fully-known feed still returns
 articles

---
 tests/Unit/Services/ArticleFetcherRssTest.php | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/tests/Unit/Services/ArticleFetcherRssTest.php b/tests/Unit/Services/ArticleFetcherRssTest.php
index 3f15dd69..95651cec 100644
--- a/tests/Unit/Services/ArticleFetcherRssTest.php
+++ b/tests/Unit/Services/ArticleFetcherRssTest.php
@@ -106,6 +106,34 @@ public function test_get_articles_from_rss_feed_does_not_duplicate_existing(): v
         $this->assertEquals(1, Article::where('url', 'https://www.theguardian.com/world/2026/mar/08/first-article')->count());
     }
 
+    public function test_get_articles_from_rss_feed_returns_known_articles_when_none_are_new(): void
+    {
+        Http::fake(['*' => Http::response($this->sampleRss, 200)]);
+
+        $feed = Feed::factory()->create([
+            'type' => 'rss',
+            'provider' => 'guardian',
+            'url' => 'https://www.theguardian.com/international/rss',
+        ]);
+
+        Article::factory()->create([
+            'url' => 'https://www.theguardian.com/world/2026/mar/08/first-article',
+            'feed_id' => $feed->id,
+        ]);
+        Article::factory()->create([
+            'url' => 'https://www.theguardian.com/world/2026/mar/08/second-article',
+            'feed_id' => $feed->id,
+        ]);
+
+        $countBeforeFetch = Article::count();
+
+        $fetcher = $this->createArticleFetcher();
+        $result = $fetcher->getArticlesFromFeed($feed);
+
+        $this->assertCount(2, $result);
+        $this->assertSame($countBeforeFetch, Article::count());
+    }
+
     public function test_get_articles_from_rss_feed_handles_invalid_xml(): void
     {
         Http::fake(['*' => Http::response('this is not xml', 200)]);