/bdd-us-july-2023

Introduction to TDD

  • Test Driven Development
  • its a way Development would automate their Unit and Integration Testing
  • TDD Frameworks for C# ( NUnit, xUnit, MS Test, etc., )
  • Dependency isolation will be done with the help Mocking Frameworks like Moq(C#)
  • Test First Development approach
  • SOLID
    • Single Responsibility Principle (SRP)
    • Open Closed Principle (OCP)
    • Liskov Substitution Principle (LSP)
    • Interface Seggration
    • Dependency Injection or Dependency Inversion of Inversion of Control (IOC)
  • The test cases could be understood only by Development or Technical folks

Introduction to BDD

  • Behavior Driven Development - C# Framework ( Specflow - native BDD Framework )

  • Specflow is Cucumber for C#

  • It is an extension of TDD

  • Test First Development approach just like TDD

  • The scope of BDD

    • You could this to automate
      • Component Test
      • API Test
      • End to End Functionality Test
      • Stress and Load Test
      • Regression and Smoke Test
      • REST/SOAP API test
      • Backend Services
      • Desktop application
      • Web application
      • Web Services
      • Microservices

  • Uses a special Gherkin langauage, which looks like plain English

  • Gherkin

  • supports about 70+ spoken languages

  • BDD Test cases can be used as a live document

Testing REST API using Specflow with RESTSharp

var client = new RestClient("your RESTendpoint URL");

            var request = new RestRequest();

            request.AddHeader("content-type", "application/json");


            request.AddParameter("application/json", "{\r\n\t\"limit\": 200,\r\n\t\"offset\": 0,\r\n\t\"postal_code\": \"90004\",\r\n\t\"status\": [\"for_sale\", \"ready_to_build\"],\r\n\t\"sort\": {\r\n\t\t\"direction\": \"desc\",\r\n\t\t\"field\": \"list_date\"\r\n\t}\r\n}", ParameterType.RequestBody);

            request.Method = Method.Post;

            var response = client.Execute(request);

            Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));