最小起订量和设置不返回值

Question

我有这个测试：

[Test]
public async Task ShouldSortOnAllFormulas()
{

    // Assemble
    const string categoryId = "cameras";
    const string organisationId = "piiick";
    var services = PickContext.GivenServices();
    var pickProvider = services.WhenCreatePickProvider();
    var products = new List<JObject>
    {
        JObject.Parse("{ \"gtin\": \"1\", \"action\": \"No\", \"size\": \"Large\", \"variant\": \"1\" }"),
        JObject.Parse("{ \"gtin\": \"2\", \"action\": \"No\", \"size\": \"Small\", \"variant\": \"1\" }"),
        JObject.Parse("{ \"gtin\": \"3\", \"action\": \"No\", \"size\": \"Small (No Lens)\", \"variant\": \"1\" }")
    };
    var formulas = new List<AnswerFormula>
    {
        new AnswerFormula { Expression = "No", Field = "action", Operator = "=", AnswerId = 170, Filter = true },
        new AnswerFormula { Expression = "Small", Field = "size", Operator = "%", AnswerId = 170, Filter = true },
        new AnswerFormula { Expression = "Small", Field = "size", Operator = "%", AnswerId = 171 }
    };

    services.MockProductProvider.Setup(x => x.ListAvailableMasterProductsAsync(categoryId, organisationId)).ReturnsAsync(products);
    services.MockFilterProvider.Setup(x => x.Filter(products, formulas)).Returns(products);

    // Act
    var uniqueAnswerIds = formulas.Select(m => m.AnswerId).GroupBy(m => m).Select(m => m.First()).ToList();
    await pickProvider.ProcessProductsAsync(formulas, categoryId, organisationId);

    // Assert
    services.MockSortProvider.Verify(x => x.SortAsync(categoryId, products, uniqueAnswerIds));
}

这个测试失败了，但它失败了，因为 products 是空的。由于某种原因，该设置未 return 产品列表。

实际上，方法 return 是一个新的产品列表，但我希望这样的设置会很好。我已将设置更改为：

services.MockProductProvider.Setup(x => x.ListAvailableMasterProductsAsync(categoryId, organisationId)).ReturnsAsync(products.ToList());
services.MockFilterProvider.Setup(x => x.Filter(products, formulas)).Returns(products.ToList());

所以他们正在为每个设置创建一个新的产品列表，但在我的方法中，产品列表是空的。有谁知道为什么？

这是我正在测试的方法：

public async Task<IEnumerable<JObject>> ProcessProductsAsync(IEnumerable<AnswerFormula> formulas, string categoryId, string oranisationId)
{
    if (formulas == null) throw new ArgumentNullException(nameof(formulas));

    var listOfFormulas = formulas.Where(m => m.Filter).ToList();
    var answerIds = formulas.Select(m => m.AnswerId).GroupBy(m => m).Select(m => m.First()).ToList(); // Use all formulas, not just filtered
    var products = await _productProvider.ListAvailableMasterProductsAsync(categoryId, oranisationId);

    _scoreProvider.Value.Score(products, listOfFormulas); // Score
    var filteredProducts = _filterProvider.Filter(products, listOfFormulas); // Filter
    var sortedProducts = await _sortProvider.Value.SortAsync(categoryId, filteredProducts, answerIds); // Sort
    _filterProvider.RemoveVariants(sortedProducts); // Remove duplicates

    return sortedProducts;
}

Answer 1

我尝试了多种变体，导致问题的不是产品。这是公式。不知道为什么，但将我的测试更改为：

[Test]
public async Task ShouldSortOnAllFormulas()
{

    // Assemble
    const string categoryId = "cameras";
    const string organisationId = "piiick";
    var services = PickContext.GivenServices();
    var pickProvider = services.WhenCreatePickProvider();
    var products = new List<JObject>
    {
        JObject.Parse("{ \"gtin\": \"1\", \"action\": \"No\", \"size\": \"Large\", \"variant\": \"1\" }"),
        JObject.Parse("{ \"gtin\": \"2\", \"action\": \"No\", \"size\": \"Small\", \"variant\": \"1\" }"),
        JObject.Parse("{ \"gtin\": \"3\", \"action\": \"No\", \"size\": \"Small (No Lens)\", \"variant\": \"1\" }")
    };
    var formulas = new List<AnswerFormula>
    {
        new AnswerFormula { Expression = "No", Field = "action", Operator = "=", AnswerId = 170, Filter = true },
        new AnswerFormula { Expression = "Small", Field = "size", Operator = "%", AnswerId = 170, Filter = true },
        new AnswerFormula { Expression = "Small", Field = "size", Operator = "%", AnswerId = 171 }
    };

    services.MockProductProvider.Setup(x => x.ListAvailableMasterProductsAsync(categoryId, organisationId)).ReturnsAsync(products);
    services.MockFilterProvider.Setup(x => x.Filter(products, It.IsAny<List<AnswerFormula>>())).Returns(products);

    // Act
    var uniqueAnswerIds = formulas.Select(m => m.AnswerId).GroupBy(m => m).Select(m => m.First()).ToList();
    await pickProvider.ProcessProductsAsync(formulas, categoryId, organisationId);

    // Assert
    services.MockSortProvider.Verify(x => x.SortAsync(categoryId, products, uniqueAnswerIds));
}

工作正常。

最小起订量和设置不返回值

Moq and setup not returning values

c#

nunit

unit-testing

moq