test(server): share the raw SQLite helpers

Nine server test classes opened the test database with their own
identical Execute and Scalar helpers. They now import TestDatabase.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

OpenNest.Server.Tests/DrawingLibraryDatabaseTests.cs

@@ -5,6 +5,7 @@ using Microsoft.Data.Sqlite;
 using OpenNest.Data;
 using static OpenNest.Server.Tests.DrawingLibraryFixtures;
 using static OpenNest.Server.Tests.DrawingSetFixtures;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -326,22 +327,4 @@ public sealed class DrawingLibraryDatabaseTests
         }
         return text.ToString();
     }
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/DrawingSetDatabaseTests.cs

@@ -5,6 +5,7 @@ using Microsoft.Data.Sqlite;
 using OpenNest.Data;
 using static OpenNest.Server.Tests.DrawingLibraryFixtures;
 using static OpenNest.Server.Tests.DrawingSetFixtures;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -347,22 +348,4 @@ public sealed class DrawingSetDatabaseTests
         }
         return text.ToString();
     }
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/MaterialListTests.cs

@@ -4,6 +4,7 @@ using Microsoft.Data.Sqlite;
 using OpenNest.Data;
 using static OpenNest.Server.Tests.DrawingLibraryFixtures;
 using static OpenNest.Server.Tests.DrawingSetFixtures;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -132,22 +133,4 @@ public sealed class MaterialListTests
         DateCreated = new DateTime(2026, 1, 1),
         DateModified = new DateTime(2026, 1, 2),
     };
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/NestMaterialGradeTests.cs

@@ -1,5 +1,6 @@
 using Microsoft.Data.Sqlite;
 using OpenNest.Data;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -86,22 +87,4 @@ public sealed class NestMaterialGradeTests
         DateCreated = new DateTime(2026, 1, 1),
         DateModified = new DateTime(2026, 1, 2),
     };
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/NestStockCodesTests.cs

@@ -2,6 +2,7 @@ using System.Net;
 using Microsoft.Data.Sqlite;
 using OpenNest.Data;
 using OpenNest.Geometry;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -147,24 +148,6 @@ public sealed class NestStockCodesTests
         DateModified = nest.DateCreated,
     };
 
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
-
     private sealed class Session : IDisposable
     {
         private readonly ServerFactory factory = new();

OpenNest.Server.Tests/NestUnitsTests.cs

@@ -2,6 +2,7 @@ using System.Net.Http.Json;
 using System.Text.Json;
 using Microsoft.Data.Sqlite;
 using OpenNest.Data;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -88,22 +89,4 @@ public sealed class NestUnitsTests
         DateCreated = new DateTime(2026, 1, 1),
         DateModified = new DateTime(2026, 1, 2),
     };
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/SetReleaseDrawingTests.cs

@@ -8,6 +8,7 @@ using OpenNest.IO;
 using OpenNest.Shapes;
 using static OpenNest.Server.Tests.DrawingLibraryFixtures;
 using static OpenNest.Server.Tests.DrawingSetFixtures;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -321,22 +322,4 @@ public sealed class SetReleaseDrawingTests
         foreach (var group in result.Groups)
             Assert.Null(await nests.GetMetadataAsync(group.Record!.Id));
     }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
 }

OpenNest.Server.Tests/SetReleaseTests.cs

@@ -7,6 +7,7 @@ using Microsoft.Data.Sqlite;
 using OpenNest.Data;
 using static OpenNest.Server.Tests.DrawingLibraryFixtures;
 using static OpenNest.Server.Tests.DrawingSetFixtures;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -588,22 +589,4 @@ public sealed class SetReleaseTests
         var stored = (await response.Content.ReadFromJsonAsync<SetReleaseRecord>(Options))!;
         Assert.Equal((false, "Synthetic kit", (SetReleaseNestUndo?)null), (stored.IsUndone, stored.Sets[0].SetName, stored.Nests[0].Undo));
     }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
 }

OpenNest.Server.Tests/SharedSettingsTests.cs

@@ -3,6 +3,7 @@ using System.Net.Http.Headers;
 using System.Net.Http.Json;
 using Microsoft.Data.Sqlite;
 using OpenNest.Data;
+using static OpenNest.Server.Tests.TestDatabase;
 
 namespace OpenNest.Server.Tests;
 
@@ -172,22 +173,4 @@ public sealed class SharedSettingsTests
         request.Headers.IfMatch.Add(new EntityTagHeaderValue($"\"{revision}\""));
         return await client.SendAsync(request);
     }
-
-    private static void Execute(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        command.ExecuteNonQuery();
-    }
-
-    private static object? Scalar(string path, string sql)
-    {
-        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
-        connection.Open();
-        using var command = connection.CreateCommand();
-        command.CommandText = sql;
-        return command.ExecuteScalar();
-    }
 }

OpenNest.Server.Tests/TestDatabase.cs

@@ -0,0 +1,28 @@
+using Microsoft.Data.Sqlite;
+
+namespace OpenNest.Server.Tests;
+
+/// <summary>
+/// Raw SQL against a test server's SQLite file, for checks the API does not expose. Import with
+/// <c>using static</c>.
+/// </summary>
+internal static class TestDatabase
+{
+    public static void Execute(string path, string sql)
+    {
+        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
+        connection.Open();
+        using var command = connection.CreateCommand();
+        command.CommandText = sql;
+        command.ExecuteNonQuery();
+    }
+
+    public static object? Scalar(string path, string sql)
+    {
+        using var connection = new SqliteConnection($"Data Source={path};Pooling=False");
+        connection.Open();
+        using var command = connection.CreateCommand();
+        command.CommandText = sql;
+        return command.ExecuteScalar();
+    }
+}