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Login Page Testing - Complete Test Case Guide for Secure and User-Friendly Authentication

A well-designed login page is essential for both security and user experience. This guide outlines key test cases for verifying username and password input behavior, password masking, character requirements, and validation rules. These test cases ensure your login page handles credentials safely and functions intuitively.

NrTest Idea
1Check the parent page testcases for general login functionality testing guidelines
2Check that both the username and password fields are mandatory
3Check the minimum and maximum length allowed for the username and password fields
4Check which characters are allowed in the username and password fields
5Check that the username field is case-insensitive
6Check that the username field validates if the username is already taken
7Check that the password field is case-sensitive
8Check that the password field does not display actual characters when typing — the value should be masked
9Check if the password field validates password requirements (e.g., minimum length)
10Check that all password requirements are displayed to the user
11Check that the password is saved in encrypted form in the database
12Check that the actual password is saved, not the masked characters
13Check if the password field should have a reveal button
14Check that the password remains masked when viewing a pre-filled password field (e.g., in user profile)
15Check that the masked value length does not reflect the actual password length when viewing a pre-filled password field
16Check that it is not possible to copy text from the password field