{"id":27943,"date":"2022-02-23T06:51:19","date_gmt":"2022-02-23T06:51:19","guid":{"rendered":"https:\/\/www.testingdocs.com\/questions\/?p=27943"},"modified":"2026-02-23T06:58:11","modified_gmt":"2026-02-23T06:58:11","slug":"negative-test-cases-for-login-page","status":"publish","type":"post","link":"https:\/\/www.testingdocs.com\/questions\/negative-test-cases-for-login-page\/","title":{"rendered":"Negative test cases for Login Page."},"content":{"rendered":"

Negative Test Cases for Login Page<\/h1>\n

Some of the negative test cases for the Login page are as follows:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Test Case ID<\/th>\nTest Scenario<\/th>\nTest Data<\/th>\nSteps<\/th>\nExpected Result<\/th>\n<\/tr>\n<\/thead>\n
TC_001<\/td>\nLogin with both fields empty<\/td>\nUsername: “”
\nPassword: “”<\/td>\n		\n
    \n
  • Leave Username blank<\/li>\n
  • Leave Password blank<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Validation message displayed for required fields<\/td>\n<\/tr>\n
TC_002<\/td>\nLogin with empty Username<\/td>\nUsername: “”
\nPassword: ValidPassword123<\/td>\n		\n
    \n
  • Leave Username blank<\/li>\n
  • Enter valid password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message for missing Username<\/td>\n<\/tr>\n
TC_003<\/td>\nLogin with empty Password<\/td>\nUsername: validUser
\nPassword: “”<\/td>\n		\n
    \n
  • Enter valid username<\/li>\n
  • Leave Password blank<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message for missing Password<\/td>\n<\/tr>\n
TC_004<\/td>\nLogin with invalid Username<\/td>\nUsername: invalidUser
\nPassword: ValidPassword123<\/td>\n		\n
    \n
  • Enter invalid username<\/li>\n
  • Enter valid password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message: Invalid username or password<\/td>\n<\/tr>\n
TC_005<\/td>\nLogin with invalid Password<\/td>\nUsername: validUser
\nPassword: WrongPassword<\/td>\n		\n
    \n
  • Enter valid username<\/li>\n
  • Enter incorrect password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message: Invalid username or password<\/td>\n<\/tr>\n
TC_006<\/td>\nPassword below minimum length<\/td>\nUsername: validUser
\nPassword: 123<\/td>\n		\n
    \n
  • Enter valid username<\/li>\n
  • Enter short password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Validation message for password length requirement<\/td>\n<\/tr>\n
TC_007<\/td>\nUsername exceeds maximum length<\/td>\nUsername: 256+ characters
\nPassword: ValidPassword123<\/td>\n		\n
    \n
  • Enter overly long username<\/li>\n
  • Enter valid password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message for exceeding maximum length<\/td>\n<\/tr>\n
TC_008<\/td>\nLogin with special characters in Username<\/td>\nUsername: @@@###$$$
\nPassword: ValidPassword123<\/td>\n		\n
    \n
  • Enter special characters in username<\/li>\n
  • Enter valid password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Validation error for invalid username format<\/td>\n<\/tr>\n
TC_009<\/td>\nLogin with SQL Injection attempt<\/td>\nUsername: ‘ OR ‘1’=’1
\nPassword: ‘ OR ‘1’=’1<\/td>\n		\n
    \n
  • Enter SQL injection input<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Login should fail and input should be sanitized<\/td>\n<\/tr>\n
TC_010<\/td>\nLogin with XSS script<\/td>\nUsername: <script>alert(1)<\/script>
\nPassword: password<\/td>\n		\n
    \n
  • Enter script in username field<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Script should not execute; input should be sanitized<\/td>\n<\/tr>\n
TC_011<\/td>\nAccount locked user login<\/td>\nUsername: lockedUser
\nPassword: ValidPassword123<\/td>\n		\n
    \n
  • Enter locked account credentials<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Error message indicating account is locked<\/td>\n<\/tr>\n
TC_012<\/td>\nLogin with expired password<\/td>\nUsername: validUser
\nPassword: ExpiredPassword<\/td>\n		\n
    \n
  • Enter credentials with expired password<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
Prompt to reset or change password<\/td>\n<\/tr>\n
TC_013<\/td>\nMultiple failed login attempts<\/td>\nUsername: validUser
\nPassword: WrongPassword<\/td>\n		\n
    \n
  • Enter wrong password multiple times<\/li>\n
  • Click Login each time<\/li>\n<\/ul>\n<\/td>\n
Account should be temporarily locked after threshold attempts<\/td>\n<\/tr>\n
TC_014<\/td>\nLogin with leading\/trailing spaces<\/td>\nUsername: ” validUser ”
\nPassword: ” ValidPassword123 “<\/td>\n		\n
    \n
  • Enter credentials with spaces<\/li>\n
  • Click Login<\/li>\n<\/ul>\n<\/td>\n
System trims spaces or shows appropriate validation error<\/td>\n<\/tr>\n
TC_015<\/td>\nLogin when server is down<\/td>\nValid credentials<\/td>\n\n
    \n
  • Enter valid username and password<\/li>\n
  • Click Login while server is unavailable<\/li>\n<\/ul>\n<\/td>\n
User-friendly error message displayed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Negative Test Cases for Login Page Some of the negative test cases for the Login page are as follows: Test Case ID Test Scenario Test Data Steps Expected Result TC_001 Login with both fields empty Username: “” Password: “” Leave Username blank Leave Password blank Click Login Validation message displayed for required fields TC_002 Login […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[],"class_list":["post-27943","post","type-post","status-publish","format-standard","hentry","category-testing-questions","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"_links":{"self":[{"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/posts\/27943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/comments?post=27943"}],"version-history":[{"count":8,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/posts\/27943\/revisions"}],"predecessor-version":[{"id":27951,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/posts\/27943\/revisions\/27951"}],"wp:attachment":[{"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/media?parent=27943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/categories?post=27943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.testingdocs.com\/questions\/wp-json\/wp\/v2\/tags?post=27943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}