Software Testing Tutorial #16 - Types of Software Testing

Summary

This tutorial discusses the different types of software testing, distinguishing between functional and non-functional testing. Functional testing focuses on verifying specific functionalities, like registration or adding items to a cart, while non-functional testing assesses aspects such as performance and response time. The video explains various types of functional tests, including unit, integration, and regression testing, as well as non-functional tests like load and security testing. The goal is to help viewers understand the broad categories and essential types of testing used in software projects.

Takeaways

• 🧑‍💻 Software testing is categorized into levels and types, and the two concepts are different.
• 🔍 There are many types of software testing, which can generally be grouped into functional and non-functional categories.
• 💡 Functional testing focuses on verifying the functionality of the software according to customer requirements, such as registration, adding items to the cart, or checkout.
• ⏱️ Non-functional testing, like performance testing, assesses aspects like the response time of a system, such as how long it takes to register a user on an e-commerce website.
• 🛠️ Examples of functional testing include unit testing, integration testing, system testing, and acceptance testing.
• 🔥 Non-functional testing includes performance testing, load testing, stress testing, security testing, and more.
• 🛡️ Security testing ensures that the software is protected from hackers and data breaches.
• ⚙️ Functional tests validate the process (e.g., registering successfully), while non-functional tests evaluate how efficiently the process occurs (e.g., time taken for registration).
• 📊 Load, stress, volume, and scalability testing fall under the broader umbrella of performance testing.
• 📚 While there are many types of testing, the most common ones are typically covered in software testing projects, and it's useful to research the less common types for interview preparation.

Q & A

What are the four levels of software testing mentioned in the previous tutorial?

The four levels of software testing mentioned in the previous tutorial are not explicitly stated in the provided script, but they typically include Unit, Integration, System, and Acceptance testing.

How does the script differentiate between levels of testing and types of testing?

The script differentiates between levels of testing and types of testing by stating that levels of testing refer to the hierarchy or stages at which testing is performed (e.g., unit, integration, system, acceptance), whereas types of testing refer to the various methods or categories of testing performed within a project, such as functional or non-functional testing.

What is the primary focus of functional testing?

Functional testing focuses on the testing of the functionality of a particular software. It involves verifying that the software meets the functional requirements provided by the customer, such as the registration functionality on an e-commerce website.

Can you provide an example of a functional requirement for an e-commerce website?

An example of a functional requirement for an e-commerce website is the ability for users to register on the site, which involves providing details like first name, last name, email, and other necessary information, and then clicking on a 'register' button to complete the registration process.

What is non-functional testing, and how does it differ from functional testing?

Non-functional testing evaluates the non-functional aspects of a software application, such as performance, security, and usability. It differs from functional testing in that it is concerned with how the software performs under various conditions rather than whether it performs the correct functions.

How is response time related to non-functional testing?

Response time is related to non-functional testing as it measures how quickly the system responds to user actions, such as clicking a 'register' button. Non-functional testing includes evaluating the system's performance, which can involve checking response times to ensure they meet the expected standards.

What are some examples of non-functional testing types mentioned in the script?

Some examples of non-functional testing types mentioned in the script include performance testing, load testing, stress testing, volume testing, scalability testing, recovery testing, and security testing.

Why is security testing important in software testing?

Security testing is important in software testing to ensure that the software is secure from potential hacking attempts and unauthorized access, thereby protecting user data and maintaining the integrity of the application.

What is the purpose of regression testing, and will it be covered in a separate tutorial?

Regression testing is the process of verifying that software modifications have not adversely affected existing features. The script indicates that regression testing will be covered in a complete separate tutorial.

What is the difference between functional and non-functional aspects of testing the registration feature on an e-commerce website?

The functional aspect of testing the registration feature would involve ensuring that the registration process works correctly by providing the necessary details and clicking the 'register' button. The non-functional aspect would involve testing how the website performs during registration, such as measuring the response time it takes to register and redirect the user to the dashboard.

What is the significance of the script's statement that some types of testing are more interview-focused rather than commonly used in projects?

The script suggests that while there are many types of testing that can be found through a Google search, not all of them are commonly used in actual software testing projects. Some types of testing are more likely to be encountered in interviews as a way to assess a candidate's knowledge rather than being practical tools used regularly in the industry.

Outlines

00:00

👋 Introduction to Software Testing Types

The speaker introduces the topic of software testing types, differentiating it from testing levels. While testing levels are limited to four, testing types are numerous, with hundreds of possible types that can be categorized as functional or non-functional testing. The speaker explains that functional testing is based on the functionality required by the customer, such as user registration on an e-commerce site, while non-functional testing covers aspects like performance. The speaker emphasizes the importance of distinguishing between functional and non-functional categories when discussing testing types.

05:00

⚡ Functional vs Non-functional Testing Explained

This section elaborates on the distinction between functional and non-functional testing. Functional testing focuses on verifying specific functionalities, like a successful registration process on a website. Non-functional testing, on the other hand, looks at aspects like performance and response time. The example of registration is used to illustrate the difference, highlighting how functional testing ensures the user can register, while non-functional testing checks if the process happens within an acceptable time frame, such as less than 30 seconds. This distinction helps define the scope of each testing type.

Keywords

💡Functional Testing

Functional testing refers to testing the actual functionality of a software application. It verifies whether a system operates according to the required specifications. In the video, the presenter gives examples of functional requirements such as 'registration functionality' and 'add items to cart' for an e-commerce website. These tests ensure the software functions as expected in real-world scenarios.

💡Non-Functional Testing

Non-functional testing assesses aspects of the software unrelated to specific functionalities, such as performance, usability, and reliability. In the video, the example of measuring the time it takes for a user to register successfully in an e-commerce website highlights the focus on performance and user experience in non-functional testing.

💡Performance Testing

Performance testing is a subset of non-functional testing focused on how well a system performs under certain conditions, such as load and stress. It checks factors like response time, as mentioned in the video when discussing how quickly the registration process should be completed. Performance testing ensures the software can handle the expected workload efficiently.

💡Unit Testing

Unit testing is a type of testing that focuses on individual components or units of a software system. The video mentions unit testing as one of the types of functional testing, where the smallest testable parts of an application are tested in isolation to ensure they function correctly.

💡Regression Testing

Regression testing ensures that new code changes do not negatively affect existing functionalities. The presenter highlights this as a critical type of testing that will be covered separately in future tutorials. It plays a crucial role in maintaining software quality during updates or modifications.

💡Smoke Testing

Smoke testing is a type of preliminary testing to check whether the basic functionalities of a system are working. It is a subset of functional testing and helps ensure that the software’s core functionalities are stable enough to proceed with further testing. The video includes it as one of the many types of functional testing.

💡Sanity Testing

Sanity testing is performed after receiving a software build to verify that a particular function or bug has been fixed. It is a narrow, focused test that checks for specific functionality, typically after minor changes. The presenter includes sanity testing in the list of functional testing types.

💡Security Testing

Security testing is a type of non-functional testing aimed at identifying vulnerabilities and ensuring the software is protected from potential threats. The video stresses its importance, especially for web applications, to prevent unauthorized access and data theft, ensuring a secure system.

💡Usability Testing

Usability testing evaluates how easy and user-friendly a software application is. The video mentions it as part of functional testing, ensuring that users can navigate and use the software’s functions with ease. It is crucial for improving the overall user experience.

💡Load Testing

Load testing is a type of performance testing that evaluates how a system performs under high demand or load. The video groups it under non-functional testing and explains how it ensures the system can handle a large number of users or high levels of activity without degrading performance.

Highlights

Introduction to types of software testing

Types of testing are different from levels of testing

Broad categorization of testing into functional and non-functional

Functional testing focuses on the functionality of software

Non-functional testing assesses aspects like performance and security

Example of functional testing: registration functionality on an e-commerce website

Example of non-functional testing: response time during registration

Functional testing types include unit, integration, system, and acceptance testing

Non-functional testing types include performance, load, stress, volume, scalability, recovery, compatibility, and security testing

Regression, sanity, smoke, and usability testing are also types of testing

The importance of understanding both functional and non-functional testing

The role of customer requirements in shaping functional testing

How to approach testing for an e-commerce website

The significance of response time in non-functional testing

Security testing as a crucial type of non-functional testing

The difference between types of testing used in interviews and those commonly used in projects

The tutorial series will cover the most important and commonly used types of testing

Encouragement to research and understand a wide range of testing types

Conclusion of the tutorial on types of software testing

Transcripts

hello everyone welcome again in the

software testing tutorial

we are going to learn types of software

testing

in the previous tutorial i have

explained about the levels of testing so

there are four levels of testing

and we have also understood about those

four levels of testing in detail

now when we talk about types of testing

it is different from the level so when

somebody asks you the

question about the levels of testing

then you have four

levels of testing as we have discussed

in the previous tutorials

and when somebody said ask the question

about types of testing there are

so many types of testing right so any

type of or any testing that you do

within the software

testing project can be categorized as

type of testing and if you try to browse

around and try to search on google

you'll find hundreds

you know almost hundred you know types

of testing different type of

testing um so let us first understand

the broader category of the type of

testing so if you see on my board here

uh i have categorized so in in the

broader sense the types

of testing can be categorized either

into the functional

or non-functional category and that is

why i have categorized these

you know types of testing into

functional and non-functional category

and in the functional category there are

some

testing types that i have noted down

here

and similarly in the non-functional

category i have noted down some of the

categories

uh some of the testing types now if you

talk about

the types of testing so these are not

the only type

of testing that are available out there

if you go ahead and

search google you'll find the types of

testing

and mostly you can categorize those

testing that you will find

into either functional or non-functional

category right

so when we talk about the type of

testing it is any

any testing that you that you'll perform

okay and

when we say functional testing it is

basically the testing of the

functionality

of a particular software right so when

whenever a customer um provides you the

requirement

they will basically provide the

functional requirements so for example

again taking the e-commerce website

customer will provide the requirements

so for example i want to have the

registration functionality right so

that's a functionality that needs to be

built

into the e-commerce website so

registration functionality

will be one so if i say registration

so that's one of the functionality right

and then say for example uh you know the

other functionality is

add items right add items

to card all right so these these are

same examples that i'm taking from the

previous tutorials

then um check out

all right so another functionality or

cancel order user should be having a

functionality to cancel the order

okay so these are some of the

functionalities or functional

requirement that

might be uh available or might be

required

for an e-commerce website if a customer

wants to build an e-commerce website

now when we talk about the

non-functional requirement or the

non-functional testing

the non-functional testing tests the

non-functional aspect say for example

how

the performance is now when we talk

about registration so

in terms of registration you launch the

e-commerce portal and

you will click on the register button

right so if say for example you have the

ecommerce webpage and here you will have

a link for the login and registration

that's

how usually you see the e-commerce

website you will click on the

registration link

and it will open the registration page

right

now on the registration page you will

have the name

uh you know you can first name last name

email

and then other details if they are

required and then you'll click on

register button and it should register

you successfully

so this is the functional testing that

you will do right so this is the

functional testing so

opening the browser and then providing

all the details and clicking on the

register button

will register you in the e-commerce

website

okay now when we talk about

non-functional aspect of this

registration say for example i'm trying

to register

and once i provide all the details and

click on registration a register button

if the response or the registration

takes

30 seconds to to register and redirect

me to the dashboard

that's not a good response right so

because

uh when when i provide all the details

and click on register button it is

taking a lot of time

now when you are testing that aspect or

basically the time aspect or how the

website is performing when a user

registers

that testing is the non-functional

testing right when you are testing the

response time

and there are many types of

non-functional testing which will

discuss briefly in this particular

tutorial

so this is the case with the

registration so when you are actually

registering

and just verifying that registration is

successful without worrying about

how much time of the response time you

it it took

when the user clicked on register button

and

he actually got redirected to the um you

know dashboard page

so you are not worried about the

response time

in the functional testing but in the

non-functional testing

what you will do is you will execute

this script and

you will also you will just look for the

response so once the user clicks on the

register button

you will capture the response time it

takes

to redirect to the user to the dashboard

page so that is the non-functional

aspect of this particular requirement

and this is the difference between the

functional and non-functional testing

now when we say types of other types of

testing so now these are the testing

types that are the functional testing so

if

if i talk about the unit testing which

is also one of the test levels

so that is also a type of testing right

unit integration system and acceptance

testing these are all test levels along

with the testing types as well right so

you can categorize these as

testing types as well then you would

have heard a lot about the regression

testing

so i'll cover this in a complete

separate tutorial what exactly

regression testing is and how you need

to do regression testing

then sanity testing smoke testing or

usability testing

so all these testing types in the left

hand side below functional testing

column are the functional testing that

is

what does it mean that these type of

testing will verify the functional

aspect as we have understood in this

registration case

a tester will launch a particular

application he'll follow certain steps

and he'll verify that the functionality

is working fine

right so for example if i take an app

example whatsapp say for example the

functionality of the whatsapp is

if i want to change my profile picture

i should click on change select the new

profile pic

and then save it right i should be able

to

save a new profile pic successfully this

is the functionality

non-functional aspect of the same is if

i click on

if i select the new profile pic and

click on save

it should respond you know within uh

you know say for example within one

second or within two seconds so that's

the when when you are checking the time

frame that it takes

to perform certain transaction that is

the non-functional testing

now when we talk about the

non-functional testing some types of

testing in the non-functional testing

are performance testing and below

performance testing or

below this performance testing umbrella

you can say you have load testing

stress volume scalability all these are

part of the performance testing right so

these are different types of

non-functional testing in

software testing then you have the

recovery testing or compatibility

security testing right so security

testing is very very important for

the software so to to basically save

your software

from being hacked or you know stopping

the hackers to

stole the user data from the software

that you are launching or the website

that you are launching right

so these are some of the functional and

non-functional testing and types of

testing that i have

you know mentioned here if you go ahead

and

google about the the types of testing

you will get

a lot more types of testing that that

you can categorize

within the functional and mount

functional testing and

then you will have the complete list of

the testing

which will help you to understand what

all types of testing are there

and what exactly they you know

what exactly you do within those type of

testing now

the most important types of testing i'll

be covering so for example you know i've

already covered unit integration system

acceptance

i'll be covering the very commonly types

of testing that are used in the actual

projects

so don't worry about them a lot because

most of it will be covered

but there in in terms of you know like

interview aspect

you might be asked some you know type of

testing which

you might not have heard before so it's

better to

google all the type of testing and get a

list of those testing and understand

those testing details but most of the

time those

type of testing are just required for

the interview they are not very

commonly spoken or used into the

software testing projects

right so whatever is required for a

software testing project or

being very you know widely used um

in terms of testing types i'll be

covering as part of this series

so that's pretty much all about the

types of software testing

that's all for this tutorial please do

share and subscribe and thank you very

much for watching