What are different rules of thumb to write good test cases?

Writing good and effective test cases requires great skills since after all effective testing is achieved by effective test cases only!

Writing such test cases is a great skill in itself and can only be achieved by in depth knowledge of the software system or application on which the tests are being carried out and it also requires some experience.

Here I’m going to share some rules of thumb to write effective test cases, basic test cases definition and test case procedures.

What is a test case actually?
A typical test case is comprised of components that are meant to describe an action or event, input and an expected outcome in order to determine whether the software system or application is working as it is meant to or not.

Before writing a test case you should know the 4 levels or categories of the test cases to avoid their duplication.
The levels have been discussed below:

Level 1:
This level involves writing of basic test cases using the available specifications and requirements and documentation provided by the client.

Level 2:
This level is the practical stage and it involves writing of test cases based on the actual system flow and functional routines of the software system or application.

Level 3:
This level involves grouping of some particular test cases. Some test cases are grouped together and a test procedure is written. A test procedure can have maximum up to 10 test cases.

Level 4:
This level involves the automation of the project. This leads to minimization of the human’s interaction with software system or application. This is done basically to maximize the focus upon the currently updated functionality to be tested rather than focusing on regression testing.

Following this whole pattern you can have an automated testing suite from no testable item, i.e., you can observe a systematic growth.
- The tester should know the objective of each and every particular test case.
- The basic objective of all the test cases is to validate the testing coverage of the software system or application.
- You need to strictly follow test cases standards. Writing test cases reduces the chances of following an ad- hoc approach.

Below given is a basic test case format:
- Test case id
- Units to be tested
- Assumptions
- Input /test data
- Execution steps
- Expected outcome
- Actual outcome
- Success or failure
- Observation
- Comments

You need to write a test case statement also. So here’s the basic format:

- Verify:
This is the first word of the test case statement.
- Using tool names, tag names, dialogues etc: this is basically to identify what is being tested.
- Verification with conditions.
- Verification to result.

For any kind of testing:

- You will cover all types of tests like functional test cases, negative value test cases and boundary value test cases.
- Be careful while writing the test cases.
- Keep it simple and easy to understand.
- Don’t write test case statements with the length of an essay.
- Keep it brief and to the point.
- Follow the test cases and test case statements formats stated above.
- Generally spreadsheets are used to write test cases which make them more presentable and easy to understand.
- You can use tools like “test director” when you want to automate the test cases.
- Writing clear and concise test cases forms an important part of software quality assurance.
- Also be careful that a good number of test cases cover functional testing which means that the primary focus is on how the feature works

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10th 3i InfoTech Academic Books Accenture ACIO ActiveX ADT Agricultural AIEEE Air Force Algebraic Amdocs Android Answers Application Development Aptitude Aptitude Questions Architectures ASP ATOS B.Sc B.Tech.B.E. Bank Exam BCA BE Board Exam Books break-continue Business Plan C C Programming C# C++ Campus campus interview Candidate profile Capgemini Career CDS Certification CET Challenge Circle Cisco class code Cognizant communication Company Company Profile Competitive Exams computer Computer Networks concentric circles constructor Course Credit Suisse CSS CTS Data Structure DBMS DC Deloitte difficult interview questions dimensions Distributed Computing do while dotNet Download ds Dynamic Web Development e-Admit card Educational engineering entertainment Even Odd Events exam schedule exception for loop fresher GATE general Discussion general knowledge Get Placed Government Job Hall Ticket HCL how to answer How to Prepare HR HR Interview HSC hypertext preprocessor IB IBM IBPS IIT Indian Army Information infosys Intelligence Bureau Internship interview Experience interview questions Interview Tips IntroC IntroC# IntroJava IntroPHP IT J2EE J2ME Java JavaScript jobs Language Books Language Tutorial Languages limit number of objectsJava Limit the number of objects being created in JAVA Linux Linux Administrator Linux Developer Logical Questions loops M Tech M.E. M.Tech M.Tech AND B.Tech Management Management Skills Matrices MBA mca ME microsoft mistakes Mixture Mobile Computing mock questions mock test MySql naukri NDA OOP opening Operating System Oracle paper Persistent PHP php programming php string variables PL/SQL Placement placement guide Placement Paper Placement Process preparing for placement presentation probability Problems Professional program Programming Project Engineer project idea Projects Puzzle qualities Question of the day Questions Quiz Question Recruitment Recruitment Pattern Requirement Result Resume Reviews Screen Sizes Scripting Session Skills Software Software Engineering solved papers Source Code Speed time and distance SQL SSC story Stress Interview Study Material study tips submit resume Synonym TCS Tech Mahindra tech news Technical Books Technical Interview Testing thank you letter Thought Time Table TutC++ Unix questions asked in aptitude and inteviews for MCA UPSC verbal Web Designing Web Developer Website Development What to read while loop Wipro Writing Resume