public async Task GetByPostalCodeAsync_Should_Throw_Exception_For_Duplicated_Mapping()
{
//Arrange
const string postalCode = "1000";
var options = new DbContextOptionsBuilder <ApplicationContext>()
.UseInMemoryDatabase(databaseName: nameof(PostalCodeTaxCalculationMappingRepositoryTests) + Guid.NewGuid())
.Options;
await using var context = new ApplicationContext(options);
var mapping = new PostalCodeCalculationTypeMapping()
{
CalculationType = TaxCalculationType.FLAT_RATE,
PostalCode = postalCode
};
context.PostalCodeCalculationTypeMappings.Add(mapping);
var mapping2 = new PostalCodeCalculationTypeMapping()
{
CalculationType = TaxCalculationType.PROGRESSIVE_TAX,
PostalCode = postalCode
};
context.PostalCodeCalculationTypeMappings.Add(mapping2);
await context.SaveChangesAsync();
_repository = new PostalCodeTaxCalculationMappingRepository(context);
//Act & Assert
Assert.ThrowsAsync <InvalidOperationException>(async() => await _repository.GetByPostalCodeAsync(postalCode));
}
public async Task GetByPostalCodeAsync_Should_Return_Mapping()
{
//Arrange
const string postalCode = "1232";
const TaxCalculationType expectedCalculationType = TaxCalculationType.PROGRESSIVE_TAX;
var options = new DbContextOptionsBuilder <ApplicationContext>()
.UseInMemoryDatabase(databaseName: nameof(PostalCodeTaxCalculationMappingRepositoryTests) + Guid.NewGuid())
.Options;
await using var context = new ApplicationContext(options);
var mapping = new PostalCodeCalculationTypeMapping()
{
CalculationType = expectedCalculationType,
PostalCode = postalCode
};
context.PostalCodeCalculationTypeMappings.Add(mapping);
await context.SaveChangesAsync();
_repository = new PostalCodeTaxCalculationMappingRepository(context);
//Act
PostalCodeCalculationTypeMapping entity = await _repository.GetByPostalCodeAsync(postalCode);
//Assert
Assert.AreEqual(postalCode, entity.PostalCode);
Assert.AreEqual(expectedCalculationType, entity.CalculationType);
}
public Task <PostalCodeCalculationTypeMapping> GetByPostalCodeAsync(string postalCode)
{
return(_cache.GetOrCreateAsync($"{GetType().Name}_{postalCode}", entry =>
{
entry.SlidingExpiration = TimeSpan.FromSeconds(DefaultValues.CacheTimeInSeconds);
return _calculationMappingRepository.GetByPostalCodeAsync(postalCode);
}));
}
public async Task GetByPostalCodeAsync_Should_Return_Null_If_Not_Exists()
{
//Arrange
const string postalCode = "0000";
var options = new DbContextOptionsBuilder <ApplicationContext>()
.UseInMemoryDatabase(databaseName: nameof(PostalCodeTaxCalculationMappingRepositoryTests) + Guid.NewGuid())
.Options;
await using var context = new ApplicationContext(options);
_repository = new PostalCodeTaxCalculationMappingRepository(context);
//Act
PostalCodeCalculationTypeMapping entity = await _repository.GetByPostalCodeAsync(postalCode);
//Assert
Assert.IsNull(entity);
}