public async Task UserCannotRateIfUserAlreayRate()
{
var companyId = 1;
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString());
var mockRepository = new EfDeletableEntityRepository <Rate>(new ApplicationDbContext(options.Options));
var service = new RatingsService(mockRepository);
var rateIsAllowed = service.IsRateAllowed(companyId, "UserId1");
Assert.True(rateIsAllowed);
await service.RateAsync(companyId, "UserId1", 3);
var rateAllowed = service.IsRateAllowed(companyId, "UserId1");
Assert.False(rateAllowed);
}