How to Do Bank Application Testing?

How to Test a Banking Application?

Bank application Testing involves examining the app’s functionality and performance. It verifies various test cases to ensure the app does not experience crashes and completes all tasks accurately. 

Thorough testing ensures the financial institution does not receive any penalties, experience financial loss, suffer security breaches to its app, or damage its reputation. 

Since users make banking transactions on a day to day, these apps need to convey high performance that meets users’ expectations. Also, the banking application requires a robust reporting system to continue a check on transactions. Software testing plays an important role in evaluating that banking applications are working efficiently.

Banking Domain Application Testing Workflow 

1. Gather and Identify Requirements: A tester documents the requirements and sorts them according to the specified use case or functional specification. For every aspect of an application, such as money transfers, bill payments, mortgages, loans, and deposits, there exists a module, and the tester must categorize the requirement into a specific module.
2. Build a Business Scenario and Review Requirements: Once the application requirements list is set up, it must be reviewed further. QA engineers build business scenarios covering all business requirements based on the requirement documents .
3. Build a Test Case Suite: After review, automation engineers select test cases to determine which can be automated and create custom scripts.

Types of Testing for Bank Applications: 

Functional testing focuses on ensuring that the bank application works as intended from a user perspective. It tests all the core functionalities.

➭ Functional Testing

Key Areas To Test:

User Authentication and Registration : 

• Test Case 1: Verify that new users can successfully register an account with accurate details (name, phone number, email, etc.). 

• Test Case 2: Ensure that the login process works, and users can access their accounts with correct credentials. 

• Test Case 3: Check the password reset functionality and multi-factor authentication (MFA). 

Account Management:

• Test Case 4: Ensure that users can view their account balance and transaction history. 

• Test Case 5: Verify that users can manage their profile and update personal details (email, phone number, etc.).

Money Transfer:

• Test Case 6: Verify that users can transfer money between accounts (both internal and external transfers). 

• Test Case 7: Check if users can pay bills and verify the correctness of bill payment information. 

Transaction Statements:

• Test Case 8: Ensure that users can view and download monthly statements. 

• Test Case 9: Verify the accuracy of transaction amounts and dates.

➭ Non- Non-Functional Testing:

Non-functional testing evaluates the performance, scalability, and security of the application. 

Key Areas To Test:

Security Testing : 

• Test Case 10: Test for SQL injection vulnerabilities to prevent unauthorized data access. 

• Test Case 11: Verify data encryption during transmission (HTTPS, SSL/TLS). 

• Test Case 12: Test multi-factor authentication (MFA) to ensure secure login. 

• Test Case 13: Check session management, such as session timeout and automatic logout after inactivity. 

• Test Case 14: Verify the application complies with industry regulations like PCI-DSS and GDPR.  

Performance Testing

• Test Case 15: Conduct load testing to see how the application performs under heavy traffic (e.g., during peak hours). 

• Test Case 16: Perform stress testing to evaluate the app’s behavior when the number of concurrent users exceeds the limit. 

• Test Case 17: Measure the app’s response time and ensure that transactions are processed efficiently. 

Usability Testing

• Test Case 18: Test the user interface (UI) for intuitiveness and clarity. Check if the app is easy to navigate and if key features are easily accessible. 

• Test Case 19: Ensure that the application is compatible with different devices and screen sizes (phones, tablets). 

Compatibility Testing

• Test Case 20: Verify the app’s performance across different operating systems (iOS, Android) and browsers (Chrome, Firefox, Safari, Edge). 

➭ Security Testing

Security is the most crucial aspect of any banking application because it deals with users’ sensitive financial information. Vulnerabilities can lead to data breaches, loss of trust, and financial damage. 

Key Security Tests: 

• Test Case 21: Ensure sensitive data like passwords, credit card numbers, and account information is encrypted at rest and during transmission. 

• Test Case 22: Perform penetration testing to identify and fix vulnerabilities. 

• Test Case 23: Test for weak authentication mechanisms and ensure the app uses strong password policies. 

• Test Case 24: Check if the app logs out users after a certain period of inactivity. 

• Test Case 25: Verify if the app handles brute force attacks by blocking login attempts after multiple failed tries. 

➭ Compliance Testing

Compliance with financial regulations and data protection laws is mandatory for banking apps. 

Key Compliance Tests: 

• Test Case 26: Ensure that the app complies with PCI-DSS standards for handling credit card information. 

• Test Case 27: Test compliance with data protection regulations like GDPR or CCPA. Ensure that users can request the deletion or correction of their data. 

• Test Case 28: Ensure that financial transactions comply with banking laws and regulations in the country of operation. 

➭User Acceptance Testing (UAT)

UAT ensures that the banking application meets the expectations of the users and stakeholders. The primary focus is on verifying if the system solves the intended business problems. 

Key UAT Tests: 

• Test Case 29: Verify that all the core banking functionalities (transfers, balance inquiries, bill payments) work seamlessly. 

• Test Case 30: Test how the app handles real-life banking situations, such as unexpected user behavior (e.g., network disconnect during a transaction). 

Best Practices for Bank Application Testing

Test Early, Test Often: Start testing as early as possible in the development lifecycle to identify issues early and save time and costs. 

Automated Testing: Automate repetitive tests (e.g., regression testing) to save time and reduce human error. 

End-to-End Testing: Simulate real-world use cases by performing end-to-end testing across various features of the application. 

Test for Real-Life Scenarios: Test real-life banking situations, such as power outages, slow network connections, and multi-step transactions. 

Security First: Given the sensitive nature of banking applications, always prioritize security testing and follow best security practices to protect user data.