tests: add test for unit of work

src/SanctionsSearch.Worker.Tests/Integration/DatabaseTest.cs

@@ -0,0 +1,33 @@
+namespace SanctionsSearch.Worker.Tests.Integration;
+
+public class DatabaseTest : IAsyncLifetime
+{
+  private readonly AppDbContext _appDbContext;
+  protected readonly Mock<TimeProvider> _timeProviderMock = new();
+  protected readonly DbContext _context;
+  protected readonly ILoggerFactory _loggerFactory = LoggerFactory.Create(builder => builder.ClearProviders());
+
+
+  public DatabaseTest()
+  {
+    var options = new DbOptions { DatabaseName = $"{Guid.NewGuid()}.db" };
+    var context = new AppDbContext(options, _timeProviderMock.Object);
+
+    _appDbContext = context;
+    _context = context;
+  }
+
+  public virtual async Task InitializeAsync()
+  {
+    await _context.Database.MigrateAsync();
+  }
+
+  public virtual async Task DisposeAsync()
+  {
+    await _appDbContext.DisposeAsync();
+
+    SqliteConnection.ClearAllPools();
+
+    File.Delete(_appDbContext.DatabasePath);
+  }
+}