public async Task GetCandidatesAverageAsync_ShouldReturnTheAverageOfTheCandidatesScores()
{
// Arrange
mock.Setup(m => m.GetCandidatesAsync())
.Returns(Task.Run(() => PopulateCandidates()));
var candidatesBusiness = new CandidatesBusiness(mock.Object, autoMapperConfiguration.CreateMapper());
double expected = CreateCandidatesWithResultsTests().Average(c => c.Score);
// Act
double actual = await candidatesBusiness.GetCandidatesAverageAsync();
// Assert
Assert.AreEqual(expected, actual);
}
public async Task GetCandidatesStantdardDeviationAsync_ShouldReturnTheStandardDeviationOfTheCandidatesScores()
{
// Arrange
mock.Setup(m => m.GetCandidatesAsync())
.Returns(Task.Run(() => PopulateCandidates()));
var candidatesBusiness = new CandidatesBusiness(mock.Object, autoMapperConfiguration.CreateMapper());
double avg = CreateCandidatesWithResultsTests().Average(c => c.Score);
IEnumerable <int> scoresArray = CreateCandidatesWithResultsTests().Select(c => c.Score);
double sumOfSquareDifferences = scoresArray.Select(s => Math.Pow(s - avg, 2)).Sum();
double expected = Math.Sqrt(sumOfSquareDifferences / scoresArray.Count());
// Act
double actual = await candidatesBusiness.GetCandidatesStantdardDeviationAsync();
// Assert
Assert.AreEqual(expected, actual);
}
public async Task GetCandidates_ShouldReturnAllCandidatesWithTheirScores()
{
// Arrange
mock.Setup(m => m.GetCandidatesAsync())
.Returns(Task.Run(() => PopulateCandidates()));
var candidatesBusiness = new CandidatesBusiness(mock.Object, autoMapperConfiguration.CreateMapper());
var expected = CreateCandidatesWithResultsTests();
// Act
var actual = await candidatesBusiness.GetCandidatesAsync();
// Assert
Assert.IsNotNull(actual);
Assert.AreEqual(expected.Count(), actual.Count());
for (int i = 0; i < expected.Count(); i++)
{
Assert.AreEqual(expected.ElementAt(i).TestTitle, actual.ElementAt(i).TestTitle);
Assert.AreEqual(expected.ElementAt(i).Score, actual.ElementAt(i).Score);
}
}
