How will you test a stapler?

Open the stapler and Put standard stapler pins and try using the stapler. 
 
Put 2 bunch of stapler pins to chk the spring is able to take the load 
 
put 1/2 bunch of stapler pin and chk if spring is moving properly and stapler is working properly. 
 
Bend one side of stapler pins and chk if it staples.

Where is Requirnment Specification of Stapler

max no of pins a stapler can load at a time 
size of the pins required 
check whether the spring runs properly 
and test cases based on the req specified by the customer

* spring test 
* load test 
* stress test 
* accuracy

load testing is nothing but statistics to collect at what response time the user are likely to get the web page. 
 
suppose if we take an example. when sent a request to the server for downlaoding a webpage . how much time taken to download that particular webage.

Load Test: Try to test the stapler by trying to staple a bunch of paper with more number of pages than it can handle. Or try to staple a card board or a tough paper like that... 
 
Stress Test: Not sure.....Trying to staple the papers with pins of less size in it.

faq's on test cases

No negative testcases on stappler?. 
1.try to insert little bigger stapler pins. 
2.without inserting the pins press it?.

1. From Requirements and design documents we design test cases 
2. From Constraints (Conditions) in requirements we design negative test cases. 

size of stappler matters,where is that requirement?? 
check putting pins of same size but longer length

Check on the ergonomics stuff as well i.e ease of handling./..amount of pressure needed to staple etc.

hi, 
first is to demand requirements or SRS.how long can we able to finish. what types of testing is required to test it.

using user acceptance test

Stapler is a mechanical device and their is no software or elctronics controller in it that make it to work. The only methods are mechanical testing such as Non-destructive testing such as 1. Material testing 2. Load testing 3. Functional testing 4. UTM testing for stress/strain etc.

5.

Destructive testing: 1. Break test 2. Humidity test. 3. High Temp. impact test 4. Falling test on differnt floor impact. 

   

 we can test stapler for the followin also

1.The maximum no of pages at a time it can staple.

2.Spring test

3.Negative testing like stapeling it without having pins,or pins of larger size .

Test Case

1) Check for Stapler in Good condition

2) Staple a set ofa papers without any pins

3) Staple a set of papers with damaged pins.

4) Staple set of papers with more number of papers than it limit

5) Staple continously till pins are empty.

1) we have to put a stapler pin how normally we are going to insert it?

if it pass then we will check negative way like if the pin would turn and insert it. here we are checking it allowing to insert.

2) After inserting the pin properly we have to check while punching the bundle of papers if it is correct or not

We can not test stapler without SRS.

(1) it is workiing fine with a standerd bunch of pins.

(2) take some papers and try to staple them. It should work fine.

(3) check whether the next pin should automatically load inplace of 1st pin.

(4)staple all the pins and check that till last pin , it should staple fine.

Punch the stapler and check that properly pinned or not.
Check the spring is properly working or not.

Take a paper and stapler having pins in it.
test case1 increase no of paper and punch again and again till it is not able to punch titly and also see that spring is working correctly or not.
Test case2 increase no. of pins as much as it can contain now start punching and observe with how many min. pins it works

S Satya answer is correct
But we make some more changes in stapler like
1.
The outer cover of it can be molded with iron or some other material which is having long life
2.
If the size of stapler pin is large and also hard, then it will be comfort.

1. check the size of the stapler
2. check with the comptable size pins
3. check at a time how many pinc can load
4. check with the over load and try to pin
5. remove the pins from the pin set and try to pin
6. fold the pins on oneside and try to pin
7. check that how many pages it can pin..

User Interface:Color and size should be user friendly.
how easily can you hold it in hands.Is it compatible with your fingers?
Functionality:Preconditions:Staples should fit in stapler.
Verify that it can staple perfectly?
Verify that the spring is pushing the staples freely as desired?
Verify that the last pin can staple without any problem?
Performance:Preconditions:Staples should fit in stapler.
Verify that the stapler can staple a bunch of papers(ranging from 5-10)?
Verify that the stapler can staple card boards?
Negative testing:
Try to insert staples which are in larger size?

First go thrugh the requirements and starting perform multiple scenarios which includes Load, Stress and Performance Testing

Different methods to test stapler

1. Check for the length of the statpler where user can handle it smoothly.
2. User shall Insert staples inside the stapler.
3. User shall staple paper bundle  by holding of statpler.
4. When staples are finsihed inside the stapler, statpler functionality shall not work.
5. Check that user can easily insert staples inside the stapler.

1. is it flexible or not.2. Dose the spring pusses the pins when presure is given to the upper part.3. Dose the lower part of the stepler which bends the pin ends is properly grooved.4. Test if Only one pin is released at one time.5. Is the pin loading process easy.6. Check if the stepler contains Pin withdrawer at the back of the lower part.7. Is the stepler easy to steple.

Staple a thick piece of paper (thickest allowed)
Staple the most common thickness
Staple the thinest allowed
Verify that all staples hold

What is this stapler to be used for?  Is it a manual stapler or an electric?  If manual, is it a heavy-duty stapler used in construction?  Read the marketing literature and spec to determine test cases. 

Is the color and graphics of stapler per spec?
Is the manufacturers' logo clearly presented on the stapler per spec?
Does the stapler open easily?
Does the stapler latch and remain closed when you close it?
Does the stapler easily accommodate staples of recommended staple size, or are staples too tight or too loose?
Does stapler accommodate the maximum number of staples per spec?

Place the maximum number of staples in the stapler and staple an average number of pages (identified in spec) with all of the staples, placing a reasonable amount of pressure on the stapler when stapling.  I would think that a stapler manufacturer would have machine perform this task while gauging the speed of thrust and the amount of pressure applied when stapling.  Count off the staples as they are stapled and if any fails, identify that staple by number.  If the incidence of failure consistently increases after a certain staple number, then we know precisely how to adjust the tension on the spring. 

Was each staple properly stapled to the paper?  If not, which staples failed (again, by staple number)?
Was there an occurrance of two staples attempting to staple at the same time, thereby binding the stapler?
Place only a few staples in the stapler and perform the test again.  Log the results.

Can you staple something on a cork board when pressing in a horizontal direction?

What is the maximum number of pages that the stapler can staple per spec?  Perform your test with the maximum number of pages.

Test with max pages + one page
Test with max pages + two pages
...
Until the stapler consistently fails to properly staple.

Place a stapler on the stapling machine and allow it to staple until it consistently fails to staple properly.  How durable is the stapler?

Does the stapler have a stapler removal feature on it?  Ensure it works properly too.
 
Ensure that your testing is performed with staples manufactured by your company as well as those manufactured by other companies (select perhaps the top three manufacturers of staples).  It would be awful to discover that your stapler did not perform well with staples from other manufacturers. 

Part of this testing will be to determine whether the problems that arise are the fault of the stapler or the staples.  Make sure that the staples you use are from radically different batches, especially if there can be some variation in the characteristics of staples during the manufacturing process.