feat(guild): /guild/create + populated /guild/info

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

SVSim.UnitTests/Integration/Guild/GuildCreateInfoFlowTests.cs

@@ -0,0 +1,87 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using SVSim.UnitTests.Infrastructure;
+
+namespace SVSim.UnitTests.Integration.Guild;
+
+public class GuildCreateInfoFlowTests
+{
+    [Test]
+    public async Task PostingCreate_then_Info_returns_populated_guild()
+    {
+        using var factory = new SVSimTestFactory();
+        long viewerId = await factory.SeedViewerAsync(
+            steamId: 76_561_198_200_000_001UL,
+            displayName: "AlphaIntPlayer");
+
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+
+        // POST /guild/create — mirror the arena integration test style: include the base-request fields
+        const string Vid = "0"; const int Sid = 0; const string Stk = "";
+        var create = await client.PostAsync("/guild/create",
+            System.Net.Http.Json.JsonContent.Create(new { guild_name = "AlphaInt", activity = 1, join_condition = 1,
+                viewer_id = Vid, steam_id = Sid, steam_session_ticket = Stk }));
+        Assert.That(create.IsSuccessStatusCode, Is.True, $"create failed ({create.StatusCode}): {await create.Content.ReadAsStringAsync()}");
+
+        // POST /guild/info — expect JOINING state with guild populated
+        var info = await client.PostAsync("/guild/info",
+            System.Net.Http.Json.JsonContent.Create(new { viewer_id = Vid, steam_id = Sid, steam_session_ticket = Stk }));
+        var json = await info.Content.ReadAsStringAsync();
+        Assert.That(info.IsSuccessStatusCode, Is.True, $"info failed: {json}");
+
+        // In test mode (no UnityPlayer user-agent) the translation middleware is a no-op;
+        // the controller's raw DTO is returned directly (no {data_headers, data} envelope).
+        using var doc = JsonDocument.Parse(json);
+        var root = doc.RootElement;
+
+        Assert.That(root.GetProperty("guild_status").GetString(), Is.EqualTo("2"),
+            "guild_status should be JOINING (2)");
+        Assert.That(root.GetProperty("guild").GetProperty("detail").GetProperty("guild_name").GetString(),
+            Is.EqualTo("AlphaInt"));
+        Assert.That(root.GetProperty("guild").GetProperty("members").GetArrayLength(),
+            Is.EqualTo(1));
+    }
+
+    [Test]
+    public async Task PostingCreate_twice_returns_error_second_time()
+    {
+        using var factory = new SVSimTestFactory();
+        long viewerId = await factory.SeedViewerAsync(
+            steamId: 76_561_198_200_000_002UL,
+            displayName: "DoubleCreatePlayer");
+
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+
+        const string Vid = "0"; const int Sid = 0; const string Stk = "";
+        var createBody = new { guild_name = "OnlyOnce", activity = 1, join_condition = 1,
+            viewer_id = Vid, steam_id = Sid, steam_session_ticket = Stk };
+
+        // First create should succeed
+        var first = await client.PostAsync("/guild/create",
+            System.Net.Http.Json.JsonContent.Create(createBody));
+        Assert.That(first.IsSuccessStatusCode, Is.True, $"First create failed: {await first.Content.ReadAsStringAsync()}");
+        var firstJson = await first.Content.ReadAsStringAsync();
+        using var firstDoc = JsonDocument.Parse(firstJson);
+        // In test mode (no envelope), result_code may be present (failure) or absent (success EmptyResponse).
+        // Success path returns EmptyResponse ({}), so result_code will not be present.
+        var firstRoot = firstDoc.RootElement;
+        if (firstRoot.TryGetProperty("result_code", out var rc1))
+        {
+            // If present it must not be 2 (error code).
+            Assert.That(rc1.GetInt32(), Is.Not.EqualTo(2), "First create must not error");
+        }
+
+        // Second create for the same viewer should return an error envelope (result_code = 2).
+        var secondBody = new { guild_name = "OnlyOnceAgain", activity = 1, join_condition = 1,
+            viewer_id = Vid, steam_id = Sid, steam_session_ticket = Stk };
+        var second = await client.PostAsync("/guild/create",
+            System.Net.Http.Json.JsonContent.Create(secondBody));
+        Assert.That(second.IsSuccessStatusCode, Is.True, "HTTP level should still be 200");
+        var secondJson = await second.Content.ReadAsStringAsync();
+        using var secondDoc = JsonDocument.Parse(secondJson);
+        // Error path: the MapErrorToWire helper returns { result_code = 2 }
+        Assert.That(secondDoc.RootElement.TryGetProperty("result_code", out var rc2), Is.True,
+            $"Second create should return result_code field, got: {secondJson}");
+        Assert.That(rc2.GetInt32(), Is.EqualTo(2), "Second create should fail with result_code=2");
+    }
+}