public async Task GetObservationsSummaryAsync_ReturnsException_WhenArgumentIsNull()
{
var options = this.CreateUniqueClassOptions <ApplicationDbContext>();
using (var context = new ApplicationDbContext(options))
{
// Arrange
context.Database.EnsureClean();
context.Database.EnsureCreated();
var service = new ObservationsAnalysisService(context);
// Act & Assert
var ex = await Assert.ThrowsAsync <ArgumentException>(() => service.GetObservationsSummaryAsync(null));
Assert.Equal("The argument is null or empty (Parameter 'predicate')", ex.Message);
}
}
public async Task GetObservationsSummaryAsync_ReturnsEmptyViewModel_WithNoMatchesInDb()
{
var testUsername = "******";
var options = this.CreateUniqueClassOptions <ApplicationDbContext>();
using (var context = new ApplicationDbContext(options))
{
//You have to create the database
context.CreateEmptyViaDelete();
context.Database.EnsureCreated();
context.Users.Add(SharedFunctions.CreateUser(testUsername));
context.SaveChanges();
context.Users.Count().ShouldEqual(1);
context.Birds.Add(SharedFunctions.GetBird(context.ConservationStatuses.FirstOrDefault()));
context.SaveChanges();
context.Birds.Count().ShouldEqual(1);
//context.Observations.Add(SharedFunctions.GetObservation(context.ApplicationUser.FirstOrDefault(), context.Birds.FirstOrDefault()));
//context.SaveChanges();
context.Observations.Count().ShouldEqual(0);
var service = new ObservationsAnalysisService(context);
// Act or change
var actual = await service.GetObservationsSummaryAsync(x => x.ApplicationUser.UserName == testUsername);
// Assert
actual.ShouldBeType <ObservationAnalysisViewModel>();
actual.TotalObservationsCount.ShouldEqual(0);
actual.UniqueSpeciesCount.ShouldEqual(0);
}
}