According to Data Reportal's survey, 5.30 billion people use the internet daily, highlighting how online interactions have become integral to our lives, whether on mobile devices or PCs. With this, a smooth and secure user experience is essential, often starting with a login page. The login page is crucial for accessing personalized content, confidential data, and valuable services. Developers and designers invest time in creating intuitive and visually appealing login pages, but thorough testing is just as critical. Therefore, writing comprehensive test cases for login pages is essential for proper testing.

In this blog, we'll explore various test cases for login pages, covering different scenarios, inputs, and user interactions.

What are the Test Cases for the Login Page?

Test cases for a login page are vital for ensuring both system security and a seamless user experience. They involve scenarios such as validating empty fields, handling incorrect formats (like special characters), enforcing password strength, and limiting login attempts. For instance, testing password strength helps ensure users create secure credentials. Overall, these test cases are essential to uncover vulnerabilities, strengthen the login mechanism, and improve the application's overall security.

Functional Test Cases for a Login Page

Test Case TypeTest Cases
Positive
  • Successful login with valid credentials.
  • Login with a valid username and case-insensitive password.
  • Successful login with remembered username and password fields.
  • Successful login after password reset.
  • Login from multiple devices simultaneously.
  • Successful login using social media integration.
  • Login with valid username and password within character limits.
  • Successful login with special characters in the password.
Negative
  • Unsuccessful login with invalid username and password.
  • Login with blank username and password.
  • Unsuccessful login with an expired account.
  • Login attempt after account lockout due to multiple unsuccessful tries.
  • Login with valid username but incorrect case-sensitive password.
  • Unsuccessful login for accounts under review or pending approval.
  • Login attempt with a deactivated or terminated account.

 

Non-Functional Test Cases for a Login Page

Test Case TypeTest Cases
Positive
  • Implementation of HTTPS for secure data transmission.
  • Session timeout for automatic logout after inactivity.
  • Account lockout after a defined number of failed login attempts.
  • CAPTCHA for preventing automated bot attacks.
  • Password complexity enforcement for strong credentials.
  • Secure handling of password reset functionalities.
  • - Monitoring user account activity for suspicious behavior.
Negative
  • Absence of HTTPS, leading to insecure data transmission.
  • No session timeout, increasing risk of unauthorized access.
  • Unencrypted password storage, exposing sensitive information.
  • Weak password complexity requirements.
  • Absence of multi-factor authentication or CAPTCHA.
  • - Lack of user activity monitoring and failure to detect suspicious actions.

 

UI Test Scenarios for a Login Page

Beyond functional and non-functional test cases, UI test scenarios focus on user behavior and satisfaction. Here are some key UI test cases:

Verify Field Validations:

  • Ensure that username and password fields are present and accept valid credentials.
  • Confirm successful login after changing the password.
  • Test behavior when entering characters beyond the allowed limits for username and password.
  • Validate that the system restricts login attempts after a defined limit and displays the appropriate message.

Verify Error Messages:

  • Ensure appropriate validation messages for empty username and password fields.
  • Validate error messages for invalid username formats (e.g., special characters).
  • Check for error messages triggered by invalid password formats.

Verify "Remember Password" Functionality:

  • Confirm that the "Remember Password" checkbox retains its selected/unselected state after reloading.
  • Ensure selecting the checkbox stores credentials for future logins.
  • Verify checkbox functionality across multiple browsers.
  • Ensure sensitive information is secure when using the "Remember Password" feature.

Verify "Forgot Password" Functionality:

  • Confirm the presence and functionality of the "Forgot Password" link.
  • Validate that users receive instructions for resetting their password.
  • Test the process of receiving and verifying password reset emails.
  • Ensure clicking the reset link directs users to a secure password reset page.
  • Validate the system's response when entering an invalid or unregistered email for password reset.

Verify "Create an Account" Link:

  • Ensure the presence and visibility of the "Create an Account" link.
  • Confirm that clicking the link directs users to the sign-up page.
  • Ensure appropriate guidance when creating a new account.

Verify Element Visibility:

  • Check the visibility of username, password fields, and the login button.
  • Ensure the visibility and accessibility of the "Forgot Password" and "Remember Password" options.
  • Confirm error messages are clear and visible during incorrect login attempts.

Verify Responsiveness:

  • Test the responsiveness of the login page across different screen sizes (desktop, tablet, mobile).
  • Ensure consistent functionality across various browsers.
  • Validate UI responsiveness to device orientation changes.
  • Ensure proper button and element placement across devices.

Verify Browser Compatibility:

  • Ensure the login page displays correctly and functions in browsers like Chrome, Firefox, Safari, Edge, and Internet Explorer.
  • Validate compatibility across different browser versions.
  • Confirm consistent UI rendering across browsers.

 

Performance Test Cases for a Login Page

Performance tests ensure a smooth user experience. Below are some performance test cases:

  • Test how the login page handles concurrent user logins.
  • Measure response time under normal and peak loads.
  • Evaluate system stability over extended periods of use.
  • Test performance under various network conditions (e.g., slow connections).
  • Monitor resource utilization (CPU, memory) during login processes.

 

Login Page Test Cases – CAPTCHA & Cookies

CAPTCHA:

  • Confirm CAPTCHA presence on the login page.
  • Verify CAPTCHA regeneration when necessary.
  • Check CAPTCHA input validation and timeout period.

Cookies:

  • Confirm that a cookie is set upon successful login.
  • Verify cookies last across multiple browser sessions and are securely encrypted.
  • Ensure cookies are deleted upon logout or session expiration.

 

BDD Test Cases for Login Page

BDD (Behavior-Driven Development) enhances collaboration between developers, testers, and non-technical stakeholders using natural language descriptions. Test cases typically follow a Given-When-Then structure:

  • Valid Credentials: Given valid credentials, when the user submits the login form, then the user should be logged in successfully.
  • Forgot Password Link: Given the user clicks the "Forgot Password" link, when the page loads, then the user should be prompted to enter their email.

 

Test Cases for a Login Page on Mobile Applications

  • Test if the login page elements appear correctly across different devices and resolutions.
  • Ensure biometric login (e.g., fingerprint, facial recognition) functions as expected.
  • Verify login behavior when the device is offline.

 

SQL Injection Testing for Login Pages

Testing for SQL injection on a login page involves attempting to exploit input fields to execute malicious SQL queries. Here’s a step-by-step guide:

  • Identify input fields interacting with the database.
  • Test for various types of SQL injection vulnerabilities, including error-based, boolean-based, and time-based injections.

 

Tips for Writing Better Test Cases for a Login Page

  • Understand testing requirements to identify key functionalities.
  • Write test cases that focus on specific functionalities.
  • Cover both positive and negative scenarios for comprehensive testing.
  • Automate repetitive test cases for faster execution and improved accuracy.

 

When to Automate Test Cases?

Automation is beneficial when tests are repetitive, complex, or time-sensitive, such as regression tests and performance/load tests across multiple platforms and browsers.

QA Genesis offers you Automation testing services to automate your test cases, ensuring faster execution, comprehensive cross-browser testing, and 24/7 support.

Rohit Gupta
Rohit Gupta
COO
Rohit harnesses his extensive knowledge of advanced technologies such as Blockchain, AI, and RPA to create solutions for diverse industries, including healthcare and customer experience management. Rohit's expertise in digital transformation enables businesses to achieve their strategic objectives.