Testing

1. What is Software Testing?

📌 Definition:

Software Testing is the process of evaluating and verifying that a software application or system performs as intended and is free from defects.

💡 In simple terms: Testing helps find bugs and issues before the software is delivered to users to ensure quality, functionality, and performance.


🎯 2. Why is Software Testing Important?

Reason

Benefit

Ensure quality and reliability

Delivers a working, stable product to users.

Identify and fix bugs early

Reduces cost and time to fix issues.

Verify business requirements

Ensures the system meets user needs.

Improve user satisfaction

Leads to better user experience.

Ensure security and compliance

Protects against vulnerabilities and data breaches.


3. Types of Software Testing

Testing Type

Purpose

Example

Functional Testing

Verify system functionalities work as expected.

Test login, registration features.

Non-Functional Testing

Test performance, usability, security.

Load testing, stress testing.

Manual Testing

Tests performed by humans following test cases.

Manually entering data to verify behavior.

Automated Testing

Tests executed by software tools/scripts.

Running Selenium test scripts.


📌 3.1 Functional Testing Includes:

  • Unit Testing – Test individual components (by developers).

  • Integration Testing – Test combined parts/modules.

  • System Testing – Test the whole system as a complete entity.

  • User Acceptance Testing (UAT) – Validate the system with end-users.


📌 3.2 Non-Functional Testing Includes:

  • Performance Testing – Check system speed, responsiveness.

  • Security Testing – Identify vulnerabilities.

  • Usability Testing – Evaluate user experience and interface.

  • Compatibility Testing – Ensure it works on different devices/browsers.


4. Software Testing Life Cycle (STLC)

Stage

Description

Requirement Analysis

Understand what needs to be tested.

Test Planning

Plan resources, schedule, and testing approach.

Test Case Development

Write detailed test cases and test data.

Test Environment Setup

Prepare hardware, software for testing.

Test Execution

Run test cases and log defects.

Test Closure

Analyze test results, finalize reports.


5. Test Case Example

Test Case ID

TC_01

Title

Verify Login Functionality

Description

Check if user can log in with valid credentials.

Preconditions

User has registered an account.

Test Steps

1. Navigate to login page. 2. Enter username/password. 3. Click Login.

Expected Result

User is logged in and redirected to dashboard.

Actual Result

(Filled during test execution).

Status

(Pass/Fail during execution).


6. Tools Used in Software Testing

Purpose

Examples of Tools

Test Case Management

TestRail, Zephyr, qTest.

Bug Tracking

Jira, Bugzilla, Trello.

Automated Testing

Selenium, TestComplete, Cypress.

Performance Testing

JMeter, LoadRunner.

API Testing

Postman, SoapUI.

Continuous Testing (CI/CD)

Jenkins, CircleCI, GitHub Actions.


7. Role of Business Analyst in Testing

Activity

BA’s Role

Requirement Clarification

Ensure testers understand business logic.

Test Case Review

Review test cases to ensure coverage.

User Acceptance Testing (UAT)

Coordinate with users for final validation.

Defect Triage

Help prioritize bug fixing based on business impact.

Change Requests

Clarify any scope changes that arise.


8. Best Practices in Testing

Practice

Reason

Start testing early

Detect issues sooner, reduce cost of fixes.

Write clear and detailed test cases

Ensure accurate and consistent testing.

Automate repetitive tests

Save time and reduce human error.

Prioritize critical functionalities

Focus on areas with highest business impact.

Track defects effectively

Manage and resolve issues efficiently.

Involve stakeholders in UAT

Ensure the solution meets real user needs.


9. Summary of Software Testing

Aspect

Explanation

Definition

Process of verifying and validating software.

Types

Functional, non-functional, manual, automated.

Life Cycle

STLC – From requirement analysis to closure.

Tools

Selenium, JIRA, Postman, JMeter, TestRail.

Role of BA

Support in requirement clarity, UAT, defect triage.

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