/// <inheritdoc/>
public override async Task <IEnumerable <Models.Location> > Handle(LocationParentsQuery param)
{
if (param == null)
{
throw new ArgumentNullException(nameof(param));
}
var locationId = param.LocationId;
var maxLoops = MaxLoopIterations;
var result = new List <Models.Location>();
while (locationId != null && (maxLoops--) > 0)
{
var id = locationId;
var item = await DatabaseAccess.GetItemAsync(
ConnectionSettings,
(Models.Location location) => location.LocationId == id);
if (item == null)
{
return(Enumerable.Empty <Models.Location>());
}
result.Add(item);
locationId = item.ParentId;
}
return(result.AsEnumerable());
}
public async Task Handle_ReturnsEmpty_WhenInvalidLocation()
{
// Arrange
var query = new LocationParentsQuery("invalid");
// Act
var results = (await Service.Handle(query)).ToList();
// Assert
results.Should().NotBeNull();
results.Count.Should().Be(0);
}
public async Task Handle_ReturnsAllParents_FromRegion()
{
// Arrange
var query = new LocationParentsQuery("region");
// Act
var results = (await Service.Handle(query)).ToList();
// Assert
results.Should().NotBeNull();
results.Count.Should().Be(2);
results.Count(l => l.Type == LocationType.National).Should().Be(1);
results.Count(l => l.Type == LocationType.Region).Should().Be(1);
}
public async Task Handle_ReturnsAllParents_FromNational()
{
// Arrange
var locationId = "national";
var location = new Mock <MedicalExaminer.Models.Location>();
var query = new LocationParentsQuery(locationId);
var connectionSettings = new Mock <IExaminationConnectionSettings>();
var dbAccess = new Mock <IDatabaseAccess>();
dbAccess.Setup(db => db.GetItemByIdAsync <MedicalExaminer.Models.Location>(
connectionSettings.Object,
It.IsAny <string>()))
.Returns(Task.FromResult(location.Object)).Verifiable();
// Act
var results = (await Service.Handle(query)).ToList();
// Assert
results.Should().NotBeNull();
results.Count.Should().Be(1);
results.Count(l => l.Type == LocationType.National).Should().Be(1);
}
