public IActionResult GetMappings(ProductCategoryMappingsParametersModel parameters)
{
if (parameters.Limit < Configurations.MinLimit || parameters.Limit > Configurations.MaxLimit)
{
return(Error(HttpStatusCode.BadRequest, "limit", "invalid limit parameter"));
}
if (parameters.Page < Configurations.DefaultPageValue)
{
return(Error(HttpStatusCode.BadRequest, "page", "invalid page parameter"));
}
IList <ProductCategoryMappingDto> mappingsAsDtos =
_productCategoryMappingsService.GetMappings(parameters.ProductId,
parameters.CategoryId,
parameters.Limit,
parameters.Page,
parameters.SinceId).Select(x => x.ToDto()).ToList();
var productCategoryMappingRootObject = new ProductCategoryMappingsRootObject()
{
ProductCategoryMappingDtos = mappingsAsDtos
};
var json = JsonFieldsSerializer.Serialize(productCategoryMappingRootObject, parameters.Fields);
return(new RawJsonActionResult(json));
}
public void WhenCalledWithLimitParameter_GivenMappingsAboveTheLimit_ShouldReturnCollectionWithCountEqualToTheLimit()
{
//Arange
var expectedLimit = 5;
//Act
var categories = _productCategoryMappingsService.GetMappings(limit: expectedLimit);
// Assert
// Not Empty assert is a good practice when you assert something about collection. Because you can get a false positive if the collection is empty.
CollectionAssert.IsNotEmpty(categories);
Assert.AreEqual(expectedLimit, categories.Count);
}
public void WhenCalledWithValidSinceId_ShouldReturnOnlyTheMappingsAfterThisIdSortedById()
{
// Arange
var sinceId = 10;
var expectedCollection =
_existigMappings.Where(x => x.Id > sinceId).OrderBy(x => x.Id).Take(Configurations.DefaultLimit);
// Act
var mappings = _productCategoryMappingsService.GetMappings(sinceId: 10);
// Assert
// Not Empty assert is a good practice when you assert something about collection. Because you can get a false positive if the collection is empty.
CollectionAssert.IsNotEmpty(mappings);
Assert.IsTrue(expectedCollection.Select(x => x.Id).SequenceEqual(mappings.Select(x => x.Id)));
}
public void WhenCalledWithLimitAndPageParameter_ShouldReturnTheItemsDeterminedByTheLimiAndPageParameters()
{
//Arange
var limit = 5;
var page = 6;
var expectedCollection = new ApiList <ProductCategory>(_mappings.AsQueryable(), page - 1, limit);
//Act
var mappings = _mappingService.GetMappings(limit: limit, page: page);
// Assert
// Not Empty assert is a good practice when you assert something about collection. Because you can get a false positive if the collection is empty.
CollectionAssert.IsNotEmpty(mappings);
Assert.AreEqual(expectedCollection.Count(), mappings.Count);
Assert.IsTrue(mappings.Select(x => new { x.CategoryId, x.ProductId })
.SequenceEqual(expectedCollection.Select(x => new { x.CategoryId, x.ProductId })));
}