What is the difference in writing test cases and writing Sanity test cases for sign up of any website? Could anyone please let me understand by giving few test cases or example of Sanity test cases for sign up page of any website?

Inserting this as the first item in the for loop did the trick

customer = customer.rstrip("\n")

You can write for this task two types of tests (as suggested by Min P. and Dobromir Manchev) and as how much detailed test cases should be, depends on fact who will perform your test.

I would personally prefer to check each case separately and it is easier to pinpoint issue and to eventually retest it.

Scenario 1:

• Test 01 - Username field - Description - Expected
  You test location, dimension, color and something like that
• Test 02 - Username wrong data - Description - Expected
  Check if this field accepts type of data that is not supported (long, short, special characters etc)
• Test 03 - Username blank input - Description - Expected
  Check if field support empty submission
• Test 04 - Username correct - Description - Expected
  Eventually what if data is correct and how it behaves
• Test 05 - Email field - Description - Expected
  You test location, dimension, color and something like that
• Test 06 - Email correct form - Description - Expected
  You check if field support only correct email form like name@mail.com and correctly handles name@mail, name@mail. etc.
• Test 07 - ...

Scenario 2:
Test 01 - Username field - Description - Expected - Feedback
Test 02 - Email field - Description - Expected - Feedback
Test 03 - ...

As for the Description it is up to you to fill this field, either with short description in which you will describe what is the test case objective or with very thorough. In expected field you need to write what will exactly expect to be the outcome of that particular test. In scenario 1 it should be simple task (check this, result that) and in scenario 2 you will test generally if the field is correct in any way and expect proper feedback in order to fix the issue.

Second scenario is easier to write but flaw is that you expect precise information and feedback from someone else (which can always bring unsatisfying, insufficient or result that vary).

Hope this helps a little bit more.

What is the difference in writing test cases and writing Sanity test cases for sign up of any website? Could anyone please let me understand by giving few test cases or example of Sanity test cases for sign up page of any website?

Hello. The program allows us to specify 3 sides of a triangle as input, and based on them it is necessary to determine the type of this triangle. How would you test this? Write a check list)

You can use this Google tool https://search.google.com/test/mobile-friendly

What is the Grey box testing?