规格上下文注入答案

【问题标题】：Specflow context injection规格上下文注入
【发布时间】：2020-07-19 22:33:04
【问题描述】：

这是关于 specflow 中的上下文注入的问题。我和我的实体上课：

public class OrderInfo
{
    public string Status { get; set; }
    public string OrderName { get; set; }
}

在另一个类中，我正在使用这个实体来创建新订单：

[Binding]
public class OrderSteps
{
    private NgWebDriver driver;
    private OrderInfo orderInfo = new OrderInfo();

    public OrderSteps(NgWebDriver driver,OrderInfo orderInfo)
    {
        this.orderInfo = orderInfo;
        this.driver = driver;
    }

    [When(@"I am creating new order")]
    public void WhenIAmCreatingNewOrder(Table table)
    {
        var orderListPage = new OrdersListPage(driver);
        orderInfo = orderListPage.CreateNewOrder(table.CreateInstance<OrderInfo>());
    }
}

在这个类中，我的方法返回一些存储在“orderInfo”对象中的数据。一切都很好，直到我需要在另一个类中使用该对象的数据。我正在尝试获取我的对象数据，但里面是空的......

    [Binding]
public class BuyerPortalSteps
{
    private NgWebDriver driver;
    private OrderInfo orderInfo;

    public BuyerPortalSteps(NgWebDriver driver, OrderInfo orderInfo)
    {
        this.driver = driver;
        this.orderInfo = orderInfo;
    }
}

所以问题是：如何从已经填充了第一类数据的对象中使用第二类的数据

【问题讨论】：

标签： c# automation specflow

【解决方案1】：

似乎我找到了解决方案。我为我的 OrderInfo 创建了一个子类：

public class OrderInfoContext
{
    public OrderInfo OrderInfo { get; set; }
}

我的 Binding 类也有一些变化：

public class OrderSteps
{
    private NgWebDriver driver;
    private List<FilterInfo> filterData = new List<FilterInfo>();
    private OrderInfoContext orderInfoContext;
    private OrderInfo orderInfo;

    public OrderSteps(NgWebDriver driver, OrderInfoContext orderInfoContext)
    {
        this.driver = driver;
        this.orderInfoContext = orderInfoContext;
    }

    [When(@"I am creating new order")]
    public void WhenIAmCreatingNewOrder(Table table)
    {
        var orderListPage = new OrdersListPage(driver);
        orderInfo = orderListPage.CreateNewOrder(table.CreateInstance<OrderInfo>());
        orderInfoContext.OrderInfo = orderInfo;
    }
}

现在我可以在其他班级中使用存储的信息了：

    [Binding]
public class BuyerPortalSteps
{
    private NgWebDriver driver;
    private OrderInfoContext orderInfoContext;

    public BuyerPortalSteps(NgWebDriver driver, OrderInfoContext orderInfoContext)
    {
        this.driver = driver;
        this.orderInfoContext = orderInfoContext;
    }

    [Then(@"I am looking for order on buyer statistics grid")]
    public void ThenIAmLookingForOrderOnBuyerStatisticsGrid()
    {
        BuyerPortalDashboard buyerPortalDashboard = new BuyerPortalDashboard(driver);
        buyerPortalDashboard.CheckBuyerDashboardStatistic(orderInfoContext.OrderInfo);
    }
}

我认为原因是如果你想在类之间共享数据，你必须初始化这个数据一次，并且永远不要再次尝试编辑它，因为它可以在你阅读它之前的任何地方进行更改.. ..这只是我的假设

【讨论】：

【解决方案2】：

您可以使用ScenarioContext 并传递它。这种方法的好处是您不需要向对象容器注册任何新内容。

在 OrderSteps 中创建“当前订单”：

[Binding]
public class OrderSteps
{
    private readonly NgWebDriver driver;
    private readonly ScenarioContext scenario;

    private OrderInfo CurrentOrder
    {
        get => (OrderInfo)scenario["OrderInfo"];
        set => scenario["OrderInfo"] = value;
    }

    public OrderSteps(NgWebDriver driver, ScenarioContext scenario)
    {
        this.driver = driver;
        this.scenario = scenario;
    }

    [When(@"I am creating new order")]
    public void WhenIAmCreatingNewOrder(Table table)
    {
        var orderListPage = new OrdersListPage(driver);

        CurrentOrder = orderListPage.CreateNewOrder(table.CreateInstance<OrderInfo>());;
    }
}

然后在另一个类中使用 OrderInfo 对象：

[Binding]
public class BuyerPortalSteps
{
    private readonly NgWebDriver driver;
    private readonly ScenarioContext scenario;
    private OrderInfo CurrentOrder => (OrderInfo)scenario["OrderInfo"];

    public BuyerPortalSteps(NgWebDriver driver, ScenarioContext scenario)
    {
        this.driver = driver;
        this.scenario = scenario;
    }

    [Then(@"I am looking for order on buyer statistics grid")]
    public void ThenIAmLookingForOrderOnBuyerStatisticsGrid()
    {
        var buyerPortalDashboard = new BuyerPortalDashboard(driver);

        buyerPortalDashboard.CheckBuyerDashboardStatistic(CurrentOrder);
    }
}

我还在 ScenarioContext 上创建了扩展方法，这也很方便：

namespace YourProject.Tests
{
    public static class OrderScenarioContextExtensions
    {
        public static OrderInfo GetCurrentOrder(this ScenarioContext scenario)
        {
            return (OrderInfo)scenario["OrderInfo"];
        }

        public static void SetCurrentOrder(this ScenarioContext scenario, OrderInfo currentOrder)
        {
            scenario["OrderInfo"] = currentOrder;
        }
    }
}

然后你可以在任何有ScenarioContext 对象的地方调用这些扩展方法：

var order = scenario.GetCurrentOrder();

var order = new OrderInfo();

scenario.SetCurrentOrder(order);

【讨论】：