public async Task GetEntities_ArgumentNullException_AbortsAndReturnsNull()
{
// Arrange
var service = new GamePredictorService(_dataMapper, _seasonRepository, _teamSeasonRepository);
var seasonID = 2017;
var dbContext = A.Fake <ProFootballEntities>();
A.CallTo(() => _teamSeasonRepository.GetEntitiesAsync(dbContext)).Throws <ArgumentNullException>();
A.CallTo(() => _dataMapper.MapToTeamSeasonViewModel(A <TeamSeason> .Ignored))
.Returns(new TeamSeasonViewModel());
// Act
var result = await service.GetEntities(seasonID, dbContext);
// Assert
A.CallTo(() => _dataMapper.MapToTeamSeasonViewModel(A <TeamSeason> .That.IsNotNull())).MustNotHaveHappened();
Assert.IsNull(result);
}
public async Task GetEntities_HappyPath()
{
// Arrange
var service = new GamePredictorService(_dataMapper, _seasonRepository, _teamSeasonRepository);
var seasonID = 2017;
var dbContext = A.Fake <ProFootballEntities>();
var count = 3;
var teamSeasons = new List <TeamSeason>(3);
for (int i = 1; i <= count; i++)
{
var teamSeason = new TeamSeason
{
TeamName = "Team" + i,
SeasonID = 2017
};
teamSeasons.Add(teamSeason);
}
A.CallTo(() => _teamSeasonRepository.GetEntitiesAsync(dbContext)).Returns(teamSeasons);
A.CallTo(() => _dataMapper.MapToTeamSeasonViewModel(A <TeamSeason> .Ignored))
.Returns(new TeamSeasonViewModel());
// Act
var result = await service.GetEntities(seasonID, dbContext);
// Assert
A.CallTo(() => _teamSeasonRepository.GetEntitiesAsync(dbContext)).MustHaveHappenedOnceExactly();
A.CallTo(() => _dataMapper.MapToTeamSeasonViewModel(A <TeamSeason> .That.IsNotNull()))
.MustHaveHappened(count, Times.Exactly);
Assert.IsInstanceOf <IEnumerable <TeamSeasonViewModel> >(result);
Assert.AreEqual(count, result.Count());
}
