SpecFlow - 创建第一个测试

我们现在将在类库中创建一个执行两个数字减法的文件。

using System;
namespace ClassLibrary2 {
   public class Class1 {
      public int Number1 { get; set; }
      public int Number2 { get; set; }
      public int Subtraction(){
         return Number1 - Number2;
      }
   }
}

Feature 文件实现

Step Definition 文件实现

上述 Feature 文件对应的 Step Definition 文件，以及使用 Class1 进行减法。

using ClassLibrary2;
using FluentAssertions;
using TechTalk.SpecFlow;
namespace SpecFlowCalculator.Specs.Steps { 
[Binding]
   public sealed class CalculatorStepDefinitions {
      private readonly ScenarioContext _scenarioContext;
      
      //instantiating Class1
      private readonly Class1 _calculator = new Class1();
      private int _result;
      public CalculatorStepDefinitions(ScenarioContext scenarioContext) {
         _scenarioContext = scenarioContext;
      }
      [Given("the first number is (.*)")]
      public void GivenTheFirstNumberIs(int number){
         _calculator.Number1 = number;
      }
      [Given("the second number is (.*)")]
      public void GivenTheSecondNumberIs(int number){
         _calculator.Number2 = number;
      }
      [When("the two numbers are subtracted")]
      public void WhenTheTwoNumbersAreSubtracted(){
         _result = _calculator.Subtraction();
      }
      [Then("the result should be (.*)")]
      public void ThenTheResultShouldBe(int result){
         _result.Should().Be(result);
      }
   }
}