From d8496614ac480e62c6be5537da4f0da147fa237a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Elias=20H=C3=B6rner?= <elias.hoerner@hoerner-it.net>
Date: Sun, 19 Apr 2026 09:21:04 +0200
Subject: [PATCH] Adapter

---
 .../TurnierplanAdapterTest.cs                              | 4 ++--
 src/Turnierplan.Adapter/TurnierplanClient.cs               | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/Turnierplan.Adapter.Test.Functional/TurnierplanAdapterTest.cs b/src/Turnierplan.Adapter.Test.Functional/TurnierplanAdapterTest.cs
index d2b79e60..20bc4754 100644
--- a/src/Turnierplan.Adapter.Test.Functional/TurnierplanAdapterTest.cs
+++ b/src/Turnierplan.Adapter.Test.Functional/TurnierplanAdapterTest.cs
@@ -330,11 +330,11 @@ public async Task Turnierplan_Client_Throws_Exception_When_Version_Does_Not_Matc
         using var httpClient = new HttpClient(new MockHttpMessageHandler(_ =>
         {
             var response = new HttpResponseMessage();
-            response.StatusCode = HttpStatusCode.Unauthorized;
+            response.StatusCode = HttpStatusCode.OK;
 
             if (sendHeader)
             {
-                response.Headers.Add("x-turnierplan-version", "2024.0.0"); // old version that does not exist
+                response.Headers.Add("X-Turnierplan-Version", "2024.0.0"); // old version that does not exist
             }
 
             return response;
diff --git a/src/Turnierplan.Adapter/TurnierplanClient.cs b/src/Turnierplan.Adapter/TurnierplanClient.cs
index d3913dc0..9931c9a5 100644
--- a/src/Turnierplan.Adapter/TurnierplanClient.cs
+++ b/src/Turnierplan.Adapter/TurnierplanClient.cs
@@ -76,6 +76,7 @@ public async Task<Tournament> GetTournament(string tournamentId)
         var request = new HttpRequestMessage(HttpMethod.Get, $"/api/tournaments/{tournamentId}");
         var response = await _httpClient.SendAsync(request).ConfigureAwait(false);
 
+        EnsureSuccessResponse(response);
         VerifyServerVersion(response);
 
         return await Deserialize<Tournament>(response).ConfigureAwait(false);
@@ -99,6 +100,7 @@ public async Task<List<TournamentHeader>> GetTournaments(string folderId)
         var request = new HttpRequestMessage(HttpMethod.Get, $"/api/tournaments{query}");
         var response = await _httpClient.SendAsync(request).ConfigureAwait(false);
 
+        EnsureSuccessResponse(response);
         VerifyServerVersion(response);
 
         return await Deserialize<List<TournamentHeader>>(response).ConfigureAwait(false);
@@ -153,13 +155,16 @@ private static void VerifyServerVersion(HttpResponseMessage response)
         }
     }
 
-    private static async Task<T> Deserialize<T>(HttpResponseMessage response)
+    private static void EnsureSuccessResponse(HttpResponseMessage response)
     {
         if (response.StatusCode != HttpStatusCode.OK)
         {
             throw new TurnierplanClientException($"API returned unexpected status code: {response.StatusCode}");
         }
+    }
 
+    private static async Task<T> Deserialize<T>(HttpResponseMessage response)
+    {
         var data = await response.Content.ReadFromJsonAsync<T>(__serializerOptions).ConfigureAwait(false);
 
         return data ?? throw new TurnierplanClientException($"Failed to deserialize API response of type '{typeof(T).Name}'.");