public async Task AddRatingToTutorial_WithAddingRate_ShoulIncreaseRatingVotes()
{
//Arrange
var db = this.SetDb();
await this.SeedTutorials(db);
var repo = new Repository <Tutorial>(db);
var service = new TutorialService(repo, this.Mapper, null);
//Act
await service.AddRatingToTutorial(2, 5);
await service.AddRatingToTutorial(2, 3);
var expectedRatingVotes = 2;
var actualRatingVotes = repo.All().SingleOrDefault(p => p.Id == 2).RatingVotes;
//Assert
Assert.Equal(expectedRatingVotes, actualRatingVotes);
}
public async Task AddRatingToTutorial_WithInValidRating_ShouldThrow()
{
//Arrange
var db = this.SetDb();
await this.SeedTutorials(db);
var repo = new Repository <Tutorial>(db);
var service = new TutorialService(repo, this.Mapper, null);
//Act
//Assert
await Assert.ThrowsAsync <InvalidOperationException>(async() => await service.AddRatingToTutorial(2, 6));
}
public async Task AddRatingToTutorial_WithNullTutorial_ShoulThrow()
{
//Arrange
var db = this.SetDb();
await this.SeedTutorials(db);
var repo = new Repository <Tutorial>(db);
var service = new TutorialService(repo, this.Mapper, null);
//Act
//Assert
await Assert.ThrowsAsync <NullReferenceException>(async() => await service.AddRatingToTutorial(3, -5));
}
public async Task AddRatingToTutorial_WithValidData_ShouldAddRatingToTutorial()
{
//Arrange
var db = this.SetDb();
await this.SeedTutorials(db);
var repo = new Repository <Tutorial>(db);
var service = new TutorialService(repo, this.Mapper, null);
//Act
await service.AddRatingToTutorial(2, 5);
var expectedRate = 5;
var actualRate = repo.All().SingleOrDefault(p => p.Id == 2).Rating;
//Assert
Assert.Equal(expectedRate, actualRate);
}
