Installation Testing:
1. Check if all parts of the pen are fitting properly and no loose-fitting.
2. Check if the pen ball is fitted properly and the ball is moving with ease.
UI Testing :
3. Check if the dimension of the pen as per mentioned in the requirement.
4. Size and shape should be confirmable for writing.
5. Logo on the pen should be properly printed.
Usability Testing:
6. Check if the grip on the pen is superior.
7. Check if the pen is writing smoothly with continuous and not breaking while writing.
8. Check if pen ink is not getting blemish while writing on the paper.
9. Check if the pressure needs to be applied on the pen to write down on the page with least efforts.
10. Check if the pen is usable for similar refills of different brands.
Functional Testing:
11. Check if the pen is writing on the page properly. [
12. Check if the ink on the paper belongs with the similar color as what we see in the refill.
13. Check if written on paper is not getting fade out after some time. If the requirement saying about ink is waterproof then apply water on written text and check the behavior of the ink.
14. Check if the pen is making the width of the line as per the specified millimeter range. If the pen is coming with two different sets of millimeter ranges i.e. 0.5 mm and 0.7 mm then make sure that line width is properly producing by pen as per design. [Validation Testing]
15. Check if the pen is properly working in the flight where different pressure conditions. [Performance testing]
16. Check if the pen is not used for a substantial period of time and check if the ink is not clot inside the pen. Check if the user is able to access the pen with ease. [Recovery testing]
17. Check if the material used to manufacture is safe to use for chewing or kept in mouth. Generally, users are used to putting the pen in the mouth while writing, so make sure that pen is safe to put in mouth or chewing.
18. Check if the ink is not being a leak from refill in normal conditions.
19. Check if the pen is working with different writing angles like the notice is displayed on notice board and user want to write on the notice board.
20. Check if the flow of ink is consistent while writing. The Badly designed pens have a problem with uneven ink flows.
21. Check if the pen ink is not getting dry very quickly or very slowing. While writing on page ink coming out of the pen point, so it should neither dry quickly nor dry too late.
Capability testing
22. Check if the pen is properly working on Space environment if it mentioned in the requirement specifications.
23. Check if how much longer you can able to write with the single refill of the pen.
24. Check if the pen is properly writing on different type’s surfaces like smooth paper, rough paper, wooden material, plastic, leather, steel, glass, etc.
Robustness Testing
25. Check if the pen is properly gripped on the shirt pocket and user able to carry on the pocket with ease.
26. Check if pen writing point is strong enough to bear a load of different users like some user used to write with some extra pressure on the pen tip.
Negative Test Cases for Pen:
27. Check pen stress testing by dropping pen down from the practical height and check if nothing is breaking, no any damage to pen and pen is working without any issues.
28. Hold the pen upwards direction for some time and try to write on paper.
29. Keep the pen in water and try to write on paper.
30. Check how the pen is working at different climate environmental conditions like at room temperature, different climate conditions.
