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Comprehensive coverage of negative scenarios in test automation

Comprehensive Coverage of Negative Scenarios in Software Testing

folder_openTest Automation

Comprehensive Coverage of Negative Scenarios in Software Testing

Looking for solutions to handle unexpected end-user behaviour or invalid input?

The solution is negative testing during the software development life cycle. We will explain negative testing, negative testing scenarios in software testing, and the advantages of choosing algoQA.

Stay through the passage and apply for your software development project.

What is Negative Testing?

Negative testing or Error Path testing assesses a computer program’s reaction to invalid or false user data. It is vital to know and analyse negative test scenarios along with positive test scenarios for full-proof software for end-users.

The core purpose of negative software testing is to find loopholes in the application. Test cases recognise when to show errors and not to. It is an essential part of test script implementation.

Testers and developer teams can track errors to resolve them in the development phase. Removing glitches will help to create a faster and more efficient application for customers and clients.

Software professionals require to consider the following factors during negative testing.

  • Input data
  • Action to be performed
  • Output

Typical Negative Testing Scenarios

Negative testing scenarios help software testers to detect possible software crashes in diverse situations.

Examples of Negative Testing Scenarios

Example One

Replicate a mobile or web application where end users are expected to fill in their mobile numbers in a text field. The numbers would be without the country code.

Type the alphabet and unique characters in the text field. This operation assesses acceptance of alphabets and characters inputs.

These are invalid inputs, and software testing professionals expect that the text fields in the app do not accept the inputs. The page in the app should display an error message for the wrong entry.

Example Two

An application where customers and visitors need to select a username at the time of registration

The username should be a combination of numbers and letters. The username should be composed of only alphanumeric characters without special characters.

Negative testing examines app behaviour for incorrect inputs. Testers will write a username with alphanumeric and special characters.

The outcome of the test should be an error message for wrong input. The text field should not accept entries as these are invalid.

Filling the Required Fields

The registration page on applications contains some fields that are mandatory to fill. Testers create tests to check the application’s behaviour. These test cases leave the mandatory fields empty and observe the response of the application.

In response to the test, the software can display a message box to populate the required field text. After filling in the mandatory fields on the form, conduct negative testing to assess software response when users fill invalid data.

Checking Valid Data According to Field Types

Software testing to ensure correspondence between field types and input is crucial for the success of an application.

Registration forms and chat boxes are generally designed to accept particular types of data. The data could be numeric, texts, dates, etc. Testers create tests to check application behaviour for incorrect information in the fields. Enter the incorrect date format or letter and observe how the application reacts.

Number of Characters to be Filled

Web pages and applications provide some fields with a limited number of characters to be filled. You require to fill in either less or more than the required characters in fields. Observe the response of the application and conclude the result of the negative test scenario.

For example- The username should contain less than 60 characters. Type in more than 60 characters and assess the application’s behaviour.

Data Limits and Bounds in Fields

Web and mobile applications provide some fields with data limits and ranges. Testers check values do not exceed or lower than the allowed range through negative testing.

Logical Input

Applications and web pages also need to function properly according to reasonable data. You cannot write 100 for age and so on.

Testers create a negative test case and put invalid data to check the application response.

Log in before Web Page Opens

Some web and mobile applications require logging in to open the home page. You can develop a test case that tries to open the app without logging in.

Negative Testing with algoQA

  • algoQA from AlgoShack allows writing negative tests using possible variants of valid and invalid data inputs.
  • Create stable and reliable negative tests for applications.
  • You can mention specified values, lead to exceptions and assign error messages for them.
  • It will help users to recognise errors and rectify them.

Benefits of Choosing algoQA

algoQA is an artificial intelligence-powered end-to-end automation testing platform.

  • algoQA from AlgoShack facilitates testing beyond UI automation.
  • algoQA provides a single platform for UI-based functional test automation, load test automation, and API test automation.
  • It is a technology-agnostic platform. It supports multi-lingual scripting, seamless working across ALMs, and multiple reporting formats.
  • You can use algoQA for Web Applications, Mobile Applications, Hybrid Applications, Desktop Applications, Robotic Process Automation, and Embedded Software.
  • Leverages AI and ML for accurate test automation results
  • Auto coding and faster machine-generated scripts
  • Provides thousands of test cases and executable scripts
  • The enhanced overall productivity of automation tests and minimises go-to-market time.
  • SaaS-based rapid automation with the best return on investment

Learn more about creating negative test scripts at and use them now for your organisation. Book a demo now.

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