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Test Scenarios vs. Test Cases: Understanding the Basics

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What Are Test Scenarios Test scenarios represent high-level ideas or conditions that need to be validated to ensure the application works as expected. They provide a broader perspective and are typically used during the test planning phase. Purpose: To capture the "what to test" without going into granular details. Example of a Test Scenario: Verify that a user can successfully log in to the application using valid credentials. Verify the behavior of the login page when invalid credentials are entered. Verify the application behavior when the login button is clicked without entering any credentials. What Are Test Cases Test cases are detailed documents that define the specific steps to execute a test. They cover inputs, execution steps, expected results, and actual outcomes. Purpose: To guide the tester step-by-step on "how to test." Example of a Test Case (for the first scenario): Test Case ID TC_01_Login_Valid_Credentials Test Scenario Verify user login with val...
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API Testing vs. UI Testing

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Introduction
API Testing and UI Testing are two essential methods in software testing. They help ensure the application works as expected, both behind the scenes and for the end user. This blog explains what they are, their key differences, and when to use each.

What is API Testing:
API Testing focuses on the backend of an application, specifically the APIs. It checks how well the system performs and ensures data flows correctly between different parts of the application.
  • Focus: Backend functionality, performance, security, and reliability.
  • Tools: Postman, RestAssured, SOAPUI.
When to Use API Testing:
  • Early in the development process.
  • When focusing on backend functionality.
  • To test integration between different systems.
What is UI Testing:
UI Testing ensures the user interface works as expected and looks good. It checks for functionality, design consistency, and ease of use.
  • Focus: Frontend functionality, design consistency, and user experience.
  • Tools: Selenium, Cypress, TestCafe.
When to Use UI Testing:
  • To validate the user interface and user experience.
  • During the later stages of development or pre-release.
  • To simulate user behavior and journeys 
Key Differences Between API Testing and UI Testing

API Testing:
  • Focus: API Testing focuses on the backend layers like the server, database, and data flow.
  • Speed: API Testing is faster as it doesn’t involve UI rendering.
  • Automation Complexity: API Testing is easier to automate since it primarily involves HTTP requests and responses.
  • Common tools: for API Testing include Postman, RestAssured, and SOAPUI.
  • Testing Level: API Testing is conducted at the integration or system level.
  • Issues Detected: API Testing identifies issues in data flow, business logic, and performance.
  • Dependency: API Testing is independent of the user interface.
UI Testing:
  • Focus: UI Testing focuses on the frontend interface that users interact with.
  • Speed: UI Testing is slower due to browser interactions and rendering processes.
  • Automation Complexity: UI Testing is more complex to automate due to various interactions and validations required.
  • Common tools: for UI Testing include Selenium, Cypress, and Playwright.
  • Testing Level: UI Testing is done at the end-to-end level.
  • Issues Detected: UI Testing uncovers usability issues and frontend design flaws.
  • Dependency: UI Testing depends on having a fully developed and functional UI.
Conclusion
  • Highlight the complementary nature of both testing types.
  • Emphasize the importance of choosing the right type based on project needs.

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