Login page write test cases:
1. UI: the page element size, length and width, color, correct spacing
2. Verify the form: input character type, the length is correct (equivalence classes can be based on a boundary value method)
3. Function:
Successful login and jump to the correct page, you can get the correct user name
Login failed: username / password error: error message displayed correctly
Length / Type mismatch: error message displayed correctly
Off the network, the network is weak, broken case server's processing
4. Security:
There is no permission to log successful;
Whether or F12 URL which you can see the password
5. Performance:
Response time multiple users to log in
6. Compatibility:
Display correctly on different browsers