How To Test Login Page On Web Application

When testing a login page with email, password, and “Remember Me” fields, there are multiple positive and negative test cases that can be explored:

• 1. UI Testing
• UI of the Login Page: Verify that the entire login page is visible and correctly displayed, including the logo, input fields, buttons, and any other UI elements.
• Possible Combinations: Test on different browsers (Chrome, Firefox, Safari, etc.) and devices (desktop, mobile, tablet) to ensure responsiveness.

• UI of Input Fields: Ensure all input fields (email, password) have proper placeholders and are clearly visible. Possible Combinations: Check for correct alignment, font size, and color contrast.

• 2. UX Testing
• Time to Load the Entire Page: Measure the time taken for the login page to load all its content.
• Possible Combinations: Test on different network speeds (3G, 4G, Wi-Fi) and simulate slow connections.
• Time to Submit the Application: Check the time it takes from clicking “Login” to receiving a response (success or error).

• Possible Combinations: Test under heavy server load or simulate high-latency conditions.

• 3. Email Field Testing

• Valid Email: Enter valid email formats (e.g., user@example.com) and ensure proper acceptance.

• Possible Combinations:</b>
  • Registered vs. unregistered email.
  • Verify case-insensitivity (upper/lowercase combinations).
  • Invalid Email: Test various invalid formats.
  • Without .com (e.g., user@domain)
  • Missing @ symbol (e.g., userdomain.com)
  • Incomplete email (e.g., user@)
  • Email in Different Cases: Test email with variations in letter case:
  • First letter capitalized (User@example.com)
  • All letters capitalized (USER@EXAMPLE.COM)
  • Random capitalization (uSeR@eXaMpLe.cOm)
  • Without Email: Submit the form without entering an email and verify the appropriate error message.
  • Expected Behavior: Display error like “Email is required.”
• 4. Password Field Testing
• Valid Password: Enter a correct password that meets the application’s criteria.
• Invalid Password
• Wrong password.
• Password with incorrect combinations (e.g., symbols instead of letters).
• Blank Password: Attempt to submit without entering a password.
• Expected Behavior: Display error like “Password is required.”

• Identify Drop-off Points: Track user behavior to identify where they abandon the login process.

• 5. Remember Me Field Testing
• Tick Remember Me Checkbox on First Login: Ensure the session persists even after closing the browser.
• Tick Remember Me Checkbox on Next Login: Ensure the email/password fields are pre-filled or remembered.
• Login Without Ticking Remember Me: Ensure login credentials are not stored.

• Untick Remember Me After Previous Tick: Ensure unticking does not save credentials.

• 6. Functionality Testing
• Login with Valid Email & Valid Password: Successful login expected.
• Login with Valid Email & Invalid Password: Display error like “Incorrect password.”
• Login with Invalid Email & Valid Password: Display error like “Invalid email format.”
• Login with Email & No Password: Expect “Password is required.”
• Login Without Email & With Password: Expect “Email is required.”
• Login Without Email & Without Password: Expect both error messages.
• Login with Remember Me Checked: Verify persistence across sessions.
• Login with Different Case Email: Verify case-insensitivity.

• Login with Capitalized Password: Ensure passwords are case-sensitive if required.

• Additional Combinations:
• Brute Force Prevention: Ensure login attempts are blocked after several failed attempts.
• Session Timeout: Verify that inactive sessions expire after a set time.
• Password Reset Link: Test if the “Forgot Password” link redirects to the appropriate flow.
• Captcha Integration: Check if CAPTCHA prevents automated login attempts.