We often hear such a term as "test scenario", but what is it, and why do we actually need it in testing? What are the most common test scenarios and how to optimize this process? Let’s look at things in detail.
Why Do You Need Test Scenarios
Test scenario is any functionality that can be tested, it is also called test condition or possibility. In other words, it’s when you try to look at the product from the user’s point of view and create any possible scenarios of their actions. Test scenarios usually consist of several test cases – direct actions executed to verify particular features or functionality. For example, checking the functionality of the filter "customization" will be a test scenario, while checking every option in it will be a separate test case. Thus, test scenarios allow to verify end to end functionality of the application, checking one by one specific scenarios, consisting of numerous test cases. What’s more, they allow to:
- get a complete application test coverage;
- make sure every member of the team like business analysts, developers, or marketing specialists has a clear understanding of how an application is functioning in the most common use cases;
- create a proposal for the client and organize the workforce in concordance with the testing work effort;
- determine the real use cases of the software.
Test Scenario Algorithms
In order to create a test scenario, first of all, you should follow these steps:
- Read all requirement documents such as BRS, SRS, FRS, of the System under test (SUT); it’s also good to refer to use cases and manuals of the application to be tested;
- For each requirement, set out possible user actions, goals, and possibilities of the system abuse, determine the technical aspects for these factors and compose them into test scenarios;
- Enumerate different test scenarios and create a traceability matrix to verify that every requirement has a corresponding test scenario;
- Get your test scenarios reviewed by the supervisor or other team members.
Then, each test scenario is written according to a template, and typical test scenario templates will have the following fields:
- Module – the component of the application;
- Requirementld – (optional) linked to SRS (software requirement specification);
- TestScenariold – the identifier of the test scenarios;
- Description – describes the purpose of the test scenario.
For example, in testing the functionality of Login procedure, you will write "login" in the Module field, enumerate test scenarios with "01,02,03…" in the TestScenariold field, and give each scenario a description like "verify that user is able to login with valid credentials" in the Description field.
There are also some tips to help you create test scenarios:
- Each test scenario should cover at least one application requirement;
- Before creating a test scenario to check multiple requirements, make sure you have test scenarios to cover them separately;
- Don’t make your test scenarios too complicated with numerous requirements.
Finally, every test scenario consists of numerous test cases, which can check either functionality, security or usability of the application. To write a test case, you need: to give your test an ID, a description, your assumption, and precondition; then state test variables and their values, steps to be executed, expected result, actual result with post-conditions; and, finally, give your test the pass/fail status. It’s extremely important to write them properly, so here are some advice on how to write test cases:
- Get things simple and transparent;
- Make sure test cases are reusable;
- Get a unique ID for each test case;
- Aim each test case at the end user or the defined requirements;
- State the expected results and assumptions;
- Always review your test cases.
Examples of Test Scenarios
Let’s look closer at some examples. If you need to create a test scenario for an e-commerce platform to check its login functionality, then it could consist of the following test cases:
- To check the system behavior when valid email id and password is entered;
- To check the system behavior when invalid email id and valid password is entered;
- To check the system behavior when valid email id and invalid password is entered;
- To check the system behavior when invalid email id and password is entered;
- To check the system behavior when email id and password fields are left blank and "Sign in" is entered;
- To check the system behavior when invalid email id and password is entered and "Sign in" is entered;
- To check, the button "Forgot your password" is working properly;
- To check the system behavior when valid phone number and password is entered;
- To check the system behavior when invalid phone number and password is entered;
- Check system behavior when the button "Keep me signed" is checked.
Apart from the above written scenario, you can also create scenarios for checking for example home page behavior for returning customers, category and product pages, customer service pages, contact pages, daily deals pages, etc. – the variety is limitless and depends on your current testing needs.
As you can see, writing test scenarios with numerous test cases in each can be an exhausting and time-consuming task, that’s why more and more testers prefer to use QA automation tools like the DogQ platform. It allows QA engineers to create and reuse multiple test scenarios on the same webpage, check the results real-time and share them with the team members. As a result, you get your test completed faster and with less effort, while your team can save resources for other tasks.
Writing test scenarios is a vital part of the testing process that has a number of advantages in comparison with the basic script testing. In most cases each test scenario is written according to a template and consists of several test cases that also have a special algorithm of creating. Knowing these algorithms and special tips will help you create proper test scenarios to cover the whole functionality of your application, while automation tools can save your time and resources in these processes. Find more fresh articles and news on testing in our blog.