Answer / swati

What is a test case?
“A test case has components that describes an input, action
or event and an expected response, to determine if a
feature of an application is working correctly.” Definition
by Glossary

There are levels in which each test case will fall in order
to avoid duplication efforts.

Level 1: In this level you will write the basic test cases
from the available specification and user documentation.
Level 2: This is the practical stage in which writing test
cases depend on actual functional and system flow of the
application.
Level 3: This is the stage in which you will group some
test cases and write a test procedure. Test procedure is
nothing but a group of small test cases maximum of 10.
Level 4: Automation of the project. This will minimize
human interaction with system and thus QA can focus on
current updated functionalities to test rather than
remaining busy with regression testing.

So you can observe a systematic growth from no testable
item to a Automation suit.

Why we write test cases?

The basic objective of writing test cases is to validate
the testing coverage of the application. If you are working
in any CMMi company then you will strictly follow test
cases standards. So writing test cases brings some sort of
standardization and minimizes the ad-hoc approach in
testing.

How to write test cases?
Here is a simple test case format

Fields in test cases:

Test case id:
Unit to test: What to be verified?
Assumptions:
Test data: Variables and their values
Steps to be executed:
Expected result:
Actual result:
Pass/Fail:
Comments:

Answer / mahesh

test case is the ideas of a test engineer.first we need to
write the ideas how to test the application on a predefined
template called testcase.
test cases should follow some guidelines
1.it must be a positive action
2.it should be simple
3.it should be clearely understandable
4.there should be a chance of finding the defect

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