Question

我有一个步骤函数，可以为计算器添加一个数字：

private readonly List<int> _numbers = new List<int>();
...
[Given(@"I have entered (.*) into the calculator")]
public void GivenIHaveEnteredIntoTheCalculator(int p0)
{
    _numbers.Add(p0);
}

我可以使用以下语法从功能文件中调用它：

Given I have entered 50 into the calculator

但我也希望使用表调用相同的函数，在这种情况下，应该为表的每一行调用一次函数：

@mytag
Scenario: Add multiple numbers
    Given I have entered 15 into the calculator
    Given I have entered <number> into the calculator
        | number |
        | 10     |
        | 20     |
        | 30     |
    When I press add
    Then the result should be 75 on the screen

哪一个应该相当于：

@mytag
Scenario: Add multiple numbers
    Given I have entered 15 into the calculator
    And I have entered 10 into the calculator
    And I have entered 20 into the calculator
    And I have entered 30 into the calculator
    When I press add
    Then the result should be 75 on the screen

也就是说，带有表的And子句和没有表调用的Given子句/重用相同的函数，只有带有表的子句多次调用它。同时，其他子句只被调用一次 - 每行不调用一次，我认为这与使用场景上下文不同。

但是，这并不起作用。我收到以下错误：

TechTalk.SpecFlow.BindingException：参数计数不匹配！绑定方法＆＃39; SpecFlowFeature1Steps.GivenIHaveEnteredIntoTheCalculator（Int32）＆＃39;应该有2个参数

我能使它工作的唯一方法是使用表 - public void GivenIHaveEnteredIntoTheCalculator(Table table)，但我想使用表而不必重写函数。

Answer 1

从另一个步骤调出一步。

首先，场景：

Scenario: Add multiple numbers
    Given I have entered the following numbers into the calculator:
        | number |
        | 15     |
        | 10     |
        | 20     |
        | 30     |
    When I press add
    Then the result should be 75 on the screen

现在步骤定义：

[Given("^I have entered the following numbers into the calculator:")]
public void IHaveEnteredTheFollowingNumbersIntoTheCalculator(Table table)
{
    var numbers = table.Rows.Select(row => int.Parse(row["number"]));

    foreach (var number in numbers)
    {
        GivenIHaveEnteredIntoTheCalculator(number);
    }
}

将表和单个参数传递给SpecFlow中的相同函数

1 个答案: