public async void SearchElectionUnitTest()
{
// Arrange
var mockRepo = GetElectionRepositoryMock();
var service = new ElectionService(mockRepo.Object);
// Act
await service.SearchAsync(new ElectionSearchRequest());
// Assert
mockRepo.Verify(repo => repo.SearchAsync(It.IsAny <Expression <Func <Election, bool> > >()), Times.AtMostOnce);
}