public async Task GetIdsByNamesAsync_WithCorrectData_ShouldReturnCorrectResult()
{
var errorMessagePrefix = "AllergenService GetIdsByNamesAsync() method does not work properly.";
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
await this.SeedDataAsync(context);
var allergenRepository = new EfRepository <Allergen>(context);
var allergenService = new AllergenService(allergenRepository);
var existentNames = new string[] { "Milk", "Eggs" };
// Act
var actualResult = (await allergenService.GetIdsByNamesAsync(existentNames)).ToList();
var expectedResult = await allergenRepository
.All()
.Where(x => existentNames.Contains(x.Name))
.Select(x => x.Id)
.ToListAsync();
// Assert
for (int i = 0; i < actualResult.Count; i++)
{
Assert.True(actualResult[i] == expectedResult[i], errorMessagePrefix + " " + "Id is not returned properly.");
}
}
public async Task GetIdsByNamesAsync_WithNonExistentName_ShouldThrowArgumentNullException()
{
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
await this.SeedDataAsync(context);
var allergenRepository = new EfRepository <Allergen>(context);
var allergenService = new AllergenService(allergenRepository);
var existentAndNonExistentNames = new string[] { "Milk", "NonExistent" };
// Act
// Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
{
await allergenService.GetIdsByNamesAsync(existentAndNonExistentNames);
});
}