Added tests

Tests/Musify.Application.Tests/Infrastructure/SqliteTestContext.cs

@@ -0,0 +1,44 @@
+using Microsoft.Data.Sqlite;
+using Microsoft.EntityFrameworkCore;
+
+namespace Musify.Application.Tests.Infrastructure;
+
+public sealed class SqliteTestContext : IAsyncDisposable, IDisposable
+{
+    private readonly SqliteConnection _connection;
+
+    public TestDatabase Database { get; }
+
+    public SqliteTestContext()
+    {
+        _connection = new SqliteConnection("DataSource=:memory:;Foreign Keys=False");
+        _connection.Open();
+
+        var options = new DbContextOptionsBuilder<TestDatabase>()
+            .UseSqlite(_connection)
+            .Options;
+
+        Database = new TestDatabase(options);
+        Database.Database.EnsureCreated();
+    }
+
+    public TestDatabase NewContext()
+    {
+        var options = new DbContextOptionsBuilder<TestDatabase>()
+            .UseSqlite(_connection)
+            .Options;
+        return new TestDatabase(options);
+    }
+
+    public void Dispose()
+    {
+        Database.Dispose();
+        _connection.Dispose();
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        await Database.DisposeAsync();
+        await _connection.DisposeAsync();
+    }
+}