In this section, we are going to understand Dynamic testing, which is done when the code is executed in the run time environment.
And we also learn about Dynamic testing, why we use it, how to perform it, what are a different technique for Dynamic testing, various tools for Dynamic Testing.
Introduction to Dynamic Testing
Dynamic testing is one of the most important parts of Software testing, which is used to analyse the code's dynamic behavior.
The dynamic testing is working with the software by giving input values and verifying if the output is expected by implementing a specific test case that can be done manually or with an automation process.
The dynamic testing can be done when the code is executed in the run time environment. It is a validation process where functional testing [unit, integration, system, and user acceptance testing] and non-functional testing [Performance, usability, compatibility, recovery and security testing] are performed.
As we know that Static testing is a verification process, whereas dynamic testing is a validation process, and together they help us to deliver a cost-effective quality Software product.
Why do we need to perform Dynamic Testing?
We can easily understand how to implement dynamic testing during the STLC [Software Testing Life Cycle] if we consider the characteristics accessible by dynamic testing.
Using dynamic testing, the team can verify the software's critical features, but some of those can be left without any assessment. And they can also affect the functioning, reliability, and performance of the software product.
Hence, we can perform Dynamic testing to fulfill the various below aspects:
Characteristic of Dynamic Testing
For understanding the fundamental of the software testing techniques, we have to learn their attribute and several other components. Hence, following are some of the important characteristics of dynamic testing:
Dynamic testing Process
Generally, dynamic testing follows a set process when the approach and test implementation performances are decided, and the team can move to execute the different testing activities.
With the help of this process, the team can find any irregularity from the approaches and strategies and help us display all the testing steps.
In the STLC, the process of Dynamic Testing involves different functions. And all the functions in the dynamic testing process rely on the conclusion of the earlier task in the testing process.
The Dynamic testing process will complete in the following steps:
The actual Dynamic Testing Process begins from Test Case Design in the software testing life cycle. Now, we discuss each step one by one to get complete knowledge of the dynamic testing process.
Step1: Test Case Design
In the first step of the dynamic testing process, the teams will design the test cases. Here, we are creating those test cases that depend on the requirements and scope of testing established before the start of the project.
In this step, we can originate the test conditions, obtain the test cases, extract the coverage Items, and identify those features that need to be tested.
Step2: Environment Setup
In the test environment phase, we will make sure that the testing environment should always be parallel to the production environment because the testing is implemented directly on the software product.
In this step, the dynamic testing process's main objective is to install the test environment, which helps us succeed in the test machines.
Step3: Test Execution
Once we successfully install the test environment, we will execute those test cases prepared in the primary stage of the dynamic testing process.
Step4: Analysis & Evaluation
After executing the test cases, we will analyse and evaluate the outcomes derived from the testing. And we will compare those outcomes with the expected results.
If expected and actual results are not the same according to executing, we will consider those test cases as fail, and log the Bug in the bug repository.
Step5: Bug Reporting
After analyzing the test cases, we will be reported and recorded any bugs or defects between the actual result and expected result to the concerned person. And the concerned person will make sure that the issue has been solved and delivering a quality product.
Example of Dynamic Testing
Let us take one sample example where we understand how dynamic testing will woks.
So, for this, we will understand the login module of any application, such as www. Twitter.com.
Suppose we want to create one new account with a secure password, so we need to follow some pre-defined rules in the password field.
And the password should have eight characters long, capital letters and at least one special character.
If we are testing this functionality, we would take all the input conditions to test this and then verify the output.
We can also put the non-working constraints, such as input a 4-character password, and validate if there is an error occurred or not.
Types of Dynamic testing
Dynamic testing divided into two different testing approach, which are as follows:
Both the testing techniques will help us execute the dynamic testing process efficiently as they play an important role in verify the performance and quality of the software.
Let's understand them one by one in detail and also see the below diagram of it:
The word white box is used to describe the core perspective of the system. The developers will perform the white box testing, where they will test every line of the program's code.
When the developers perform the White-box testing and then send the software application to the testing team, the testing team will do the black box testing, validate the application as well as the requirements. The white-box testing is further divided into data flow/control testing.
Data flow Testing
The data flow testing is used to identify the program's test paths as per the settings of descriptions and uses of variables in the program. And it does not relate to data flow diagrams.
The black-box testing is a testing technique where the test engineer selects a module and gives an input value to observe its functionality and analysis of whether the function is giving the expected output or not. If the function produced the correct output, then the particular function will be marked as pass.
To perform black-box testing, the test engineer should have specific knowledge about the software's requirement rather than programming knowledge of the software.
And then, they can develop the test cases to check the correctness of the software's functionality.
Black-box testing is further classified into two types, which are as follows:
Functional testing is one of the most important parts of black-box testing. It mainly focuses on application specification rather than the actual code, and the test engineer will test the program rather than the system.
The functional testing is used to validate the software application's functionality, whether the function is working as per the requirement specification.
In functional testing, each module has been tested by giving the value, determining the output, and verifying the actual output with the expected value.
The functional testing is classified into four different type of testing, which are as follows:
Non- Functional testing
Another part of black-box testing is non-functional testing. It is used to test non-functional constraints like load test, reliability, performance, and software accountability.
The main objective of performing the non-functional testing is to test the software system's reading speed according to the non-functional parameters because these parameters are never tested before the functional testing.
Non-functional testing plays a vital role in customer satisfaction while testing the software or the application.
It reduces the risk of production and related costs of the software, and it provides a thorough knowledge of product behavior and used technologies.
Furthermore, the non-functional testing is divided into various parts, which can be performed at the test level.
Let's understand them in details one by one:
Advantages and disadvantages of Dynamic Testing
From detecting and evaluating several bugs and errors in the software to verifying the software's performance, dynamic testing provides serval benefits to the users and the testing team.
However, we have various advantages of dynamic testing as well as some disadvantages.
Therefore, below we listed some of the advantages and disadvantages of dynamic testing:
Following are the advantages of dynamic testing:
Following are drawbacks of dynamic testing:
In the dynamic testing section, we have learned the following topics: