test(gift): prod-URL coverage and state=3 delete behavior

SVSim.UnitTests/Controllers/GiftControllerTests.cs

@@ -247,4 +247,93 @@ public class GiftControllerTests
         Assert.That(finalPost.Crystals, Is.EqualTo(midPost.Crystals), "Second claim of same present_ids must not re-grant.");
         Assert.That(finalPost.Rupees, Is.EqualTo(midPost.Rupees));
     }
+
+    [Test]
+    public async Task GiftTop_prod_route_returns_same_content_as_tutorial_route()
+    {
+        using var factory = new SVSimTestFactory();
+        long viewerId = await factory.SeedViewerAsync(tutorialState: 31);
+        await factory.SeedTutorialPresentsAsync(viewerId);
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+
+        var tutorial = await client.PostAsync("/tutorial/gift_top",
+            new StringContent($$"""{"page":1,{{BaseAuthBlock}}}""", Encoding.UTF8, "application/json"));
+        var prod = await client.PostAsync("/gift/top",
+            new StringContent($$"""{"page":1,{{BaseAuthBlock}}}""", Encoding.UTF8, "application/json"));
+
+        Assert.That(tutorial.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+        Assert.That(prod.StatusCode,     Is.EqualTo(HttpStatusCode.OK));
+
+        using var tDoc = JsonDocument.Parse(await tutorial.Content.ReadAsStringAsync());
+        using var pDoc = JsonDocument.Parse(await prod.Content.ReadAsStringAsync());
+
+        // The two routes are pure aliases — present_list under both contains the same five
+        // PresentIds (compare as a set; CreatedAt-tied ordering may differ).
+        var tIds = tDoc.RootElement.GetProperty("present_list").EnumerateArray()
+            .Select(p => p.GetProperty("present_id").GetString()).ToHashSet();
+        var pIds = pDoc.RootElement.GetProperty("present_list").EnumerateArray()
+            .Select(p => p.GetProperty("present_id").GetString()).ToHashSet();
+        Assert.That(pIds, Is.EquivalentTo(tIds));
+        Assert.That(pIds.Count, Is.EqualTo(5));
+    }
+
+    [Test]
+    public async Task GiftReceive_prod_route_does_not_advance_tutorial_state()
+    {
+        using var factory = new SVSimTestFactory();
+        await factory.SeedGlobalsAsync();
+        long viewerId = await factory.SeedViewerAsync(tutorialState: 31);
+        await factory.SeedTutorialPresentsAsync(viewerId);
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+
+        var json = $$"""{"present_id_array":["71478626"],"state":1,{{BaseAuthBlock}}}""";
+        var response = await client.PostAsync("/gift/receive_gift",
+            new StringContent(json, Encoding.UTF8, "application/json"));
+
+        Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+        using var doc = JsonDocument.Parse(await response.Content.ReadAsStringAsync());
+
+        // Prod route NEVER advances tutorial. tutorial_step echoes persisted state (still 31).
+        Assert.That(doc.RootElement.GetProperty("tutorial_step").GetInt32(), Is.EqualTo(31));
+        Assert.That(await factory.GetViewerTutorialStateAsync(viewerId), Is.EqualTo(31));
+    }
+
+    [Test]
+    public async Task GiftReceive_state_3_deletes_without_grant_and_without_history()
+    {
+        using var factory = new SVSimTestFactory();
+        await factory.SeedGlobalsAsync();
+        long viewerId = await factory.SeedViewerAsync(tutorialState: 31);
+        await factory.SeedTutorialPresentsAsync(viewerId);
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+
+        var preCurrency = await factory.GetViewerCurrencyAsync(viewerId);
+
+        // Delete the crystal gift (71478626 grants +400 crystals on state=1).
+        var json = $$"""{"present_id_array":["71478626"],"state":3,{{BaseAuthBlock}}}""";
+        var response = await client.PostAsync("/gift/receive_gift",
+            new StringContent(json, Encoding.UTF8, "application/json"));
+
+        Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+        using var doc = JsonDocument.Parse(await response.Content.ReadAsStringAsync());
+        var root = doc.RootElement;
+
+        // No currency granted.
+        var postCurrency = await factory.GetViewerCurrencyAsync(viewerId);
+        Assert.That(postCurrency.Crystals, Is.EqualTo(preCurrency.Crystals),
+            "state=3 (MAIL_DELETE) must not grant.");
+
+        // No reward_list / total_receive_count_list entries.
+        Assert.That(root.GetProperty("reward_list").GetArrayLength(), Is.EqualTo(0));
+        Assert.That(root.GetProperty("total_receive_count_list").GetArrayLength(), Is.EqualTo(0));
+
+        // received_ids still reflects what was processed (the row transitioned to Deleted),
+        // so the client knows the gift is gone from its inbox.
+        Assert.That(root.GetProperty("received_ids").GetArrayLength(), Is.EqualTo(1));
+
+        // The deleted gift does NOT appear in present_history_list — it's tombstoned, not archived.
+        Assert.That(root.GetProperty("present_history_list").GetArrayLength(), Is.EqualTo(0));
+        // ... and present_list now has 4 remaining unclaimed gifts.
+        Assert.That(root.GetProperty("present_list").GetArrayLength(), Is.EqualTo(4));
+    }
 }