Testcases for Pen:
Functional Testcases:
1)The pen should be matching the given requirements that is the length and width.
2)The color of the body of the pen.
3)The color of the ink in the pen.
4)How many meters it should write.
5)It should not Blot or spill ink
6)The writing should not break
7)Is it refillable or not
8)Is it Ball pointed or Sharp pointed ?(does it write Bold or sharp)
9)Is it a Ink pen or a refillable pen

Regarding the test cases of a paper
1)The should be according to the requirements EX: A3,A4
2)It should be white
3)while writing on the paper ink should not spread incase of if it is a ink pen and ink should not blot incase of refillable pen
4)It should be write able
5)we have see the thickness of the paper
6)Consider the whiteness of the paper