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Answer Posted / rajendra_penumalli
To understand Test Data, first we should understand the
Test case.
Test case comprises following parts:
1.Precondition
2.User action/Steps
3.Input data/Test data
4.Expected Result
5.Actual Result
For every test there will be some precondition will be
there.
For example,
if we are testing a web based login page,
1.Precondition:
The web page should load on web browser.
2.User action/steps:
i. Enter test data into valid User id and valid
Password in login page.
ii.Then click on 'submit' button
3.Input data/Test data:
User ID: rajendra_penumalli (valid User ID)
Password: passw0rd (Valid Password)
4.Expected Result:
Application should display the home page
5.Actual Result:
<out come of the execution>
Here in above test case, in step three the User ID and
Password data (rajendra_penumalli,passw0rd) are the test
data.
Using,
Boundary Value Analysis and
Equivalence Class Partition
Tester can generate test data for different scenario's
Based on each set of test data can be converted in to a
test case using cause effect graphing technique.
For example foe the above login functionality testing
we can write test data as follows:
Test Data Set-1
Valid User ID
Valid Password
Test Data Set-2
Valid User ID
Invalid Password
Test Data Set-3
Invalid User ID
Valid Password
Test Data Set-4
Invalid User ID
Invalid Password
Test Data Set-5
Blank User ID
Valid Password
Test Data Set-6
Valid User ID
Blank Password
Test Data Set-7
Blank User ID
Blank Password
I think all are clear now.
Rajendra_penumalli@yahoo.com
Sr.Test Engineer
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