Introduction to Test Scenario

A scenario for testing is a sentence defining the application’s functionality. It is used to finish the test of a function and is typically extracted from the use cases. one or more test cases may be protected by a single scenario. A test scenario, therefore, has one relation to many relationships with the test cases. Scenario testing is a form of scenario test performed using the use case scenarios. Complex application logics can be evaluated with scenario testing using basic scenarios for evaluation.

Why to create Test Scenarios?

Multiple test cases can be covered by one test scenario. The relation, therefore, between Test Scenarios and test cases is one-to-many. But each scenario must be taken care of by the tester while creating it. Testers create it to test the application from the point of view of an end-user. Testers seek from all the developers, stakeholders, and customers to prepare them that are critical.

Reason for creating them are as follows:

Complete and proper Test Coverage is ensured by the creation of perfect Test Scenarios.
Creation of them becomes critical to study the end-to-end functionalities of a program.
Most important and critical end-to-end transactions or real-time application usage can be well determined with the proper help of them.
They can be used as a tool for quick determination of testing workforce which further helps the clients or organizations for proposal creation and organization of testing workforce effectively and efficiently.
For ensuring the thorough and proper testing of applications, approval of it is done at various levels including customers, business analysts, developers, etc.

Similarly, there can be certain circumstances in which the creation of it should be avoided.

It may not be created in projects following Agile Methodologies such as Scrum, etc.
When the applications to be tested are unstable, or too complicated or when the project is in a critical-time state creation of it may be avoided.
Creation of it may be avoided for regression testing or for a new bug because in maintenance projects heavy documentations of them would happen beforehand in the former test cycles.

How Test Scenarios can be Written?

The following steps can be carried out by a tester for the creation of Test Scenarios:

Step 1: The document of requirements such as Business Requirement Specification (BRS), Functional Requirement Specification (FRS), and System Requirement Specification (SRS) of the application to be tested should be read thoroughly and carefully. Manuals, books, use cases, etc. of the application under test can be referred for the same.
Step 2: All the possible objectives and user actions should be figured out properly for every requirement. All the technical features of every requirement should also be determined.
Step 3: All the possible causes of system hack and user evaluation should be done from a hacker’s perspective. User evaluation can be done by finding all the possibilities of user operation of the applications.
Step 4: A complete list of all the possible test cases for verifying all the functionalities of the application should be made after completely reading the document of requirement and completing the analysis.
Step 5: After the enlisting of all them, for verifying the requirement and its Test Scenario are matching a Traceability Matrix should be created.
Step 6: All the created Test Scenarios are reviewed and evaluated by the supervisor. It is also further verified by all the stakeholders.

As per the project procedure, every Test Scenario must be matched to at least one user story or requirement. It is mandatory to verify every Test Scenario against its requirement separately, before multiple requirements in a single Test Scenario. Complex Test Scenarios with multiple requirements can be avoided for simplicity. Price is directly proportional to the number of them So, it is always advisable to run only selected and required according to customer priority.

Examples

Below are some examples:

Test Scenario for Buykart online shopping application

Test Scenarios which can be taken into consideration for the verification of an online shopping application Buykart is as follows:

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