Part 2 :: Spring Boot testing

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Part 2 :: Spring Boot Testing

Spring Boot Testing

2

Spring Boot Testing

3

Spring Boot Testing

4

Spring Boot Testing

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Spring Boot Testing

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Topics
What types of testing ?
Spring Boot Testing
Why do we testing ?
Demo
Q/A

Spring Boot Testing

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https://wingman-sw.com/

Spring Boot Testing

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https://wingman-sw.com/

Spring Boot Testing

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Software Delivery
https://martinfowler.com/articles/practical-test-pyramid.html

Spring Boot Testing

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Technical excellence
https://less.works/less/technical-excellence/index

Spring Boot Testing

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https://less.works/less/technical-excellence/index

Spring Boot Testing

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"Program testing can be used
to show the presence of bugs,

but never their absence."
Edsger W. Dijkstra, 1970, Notes on Structured Programming

Spring Boot Testing

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Start with Why …

Spring Boot Testing

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Spring Boot Testing

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Spring Boot Testing

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Spring Boot Testing

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Why we need to test ?
Boosted confidence
Quality code
Help you to catch bugs
Enforce modularity of your project
Develop features faster
Better documentation

Spring Boot Testing

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But,

It’s take time to learning and
practice !!

Spring Boot Testing

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Why not write automated tests ?
https://slack.engineering/android-ui-automation-part-1-building-trust-de3deb1c5995
Not enough time !!!

Spring Boot Testing

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What kind of test should we
write ?

Spring Boot Testing

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Key success factors
Whole team solve problems
Whole team thinks about testing
Whole team committed to quality
Everyone collaborates

Spring Boot Testing

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Iterative and incremental process
Time
Feature 1

Spring Boot Testing

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Time
Feature 1
Done = coded and tested

Spring Boot Testing

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Time
Feature 1 Feature 1
Feature 2

Spring Boot Testing

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Time
Feature 1 Feature 1
Feature 2
Feature 1
Feature 2
Feature 3

Spring Boot Testing

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Time
Feature 1 Feature 1
Feature 2
Feature 1
Feature 2
Feature 3
Feature 1
Feature 2
Feature 3
Feature 4

Spring Boot Testing

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Time
Feature 1 Feature 1
Feature 2
Feature 1
Feature 2
Feature 3
Feature 1
Feature 2
Feature 3
Feature 4

Spring Boot Testing

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We need automation !!

Spring Boot Testing

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Time
Feature 1 Feature 1
Feature 2
Feature 1
Feature 2
Feature 3
Feature 1
Feature 2
Feature 3
Feature 4
Automation

done
Automation

done
Automation

done
Automation

done

Spring Boot Testing

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Fast feedback loop

Spring Boot Testing

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Continuous testing

Spring Boot Testing

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Continuous improvement

Spring Boot Testing

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Why should you automate ?
Manual checking take too long
Manual checks are error prone
Free people to do their best work
Provides living document
Repeatable
Save time

Spring Boot Testing

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Testing pyramid

Spring Boot Testing

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Ice-cream testing

Spring Boot Testing

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Testing Pyramid

Spring Boot Testing

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Testing Pyramid
Feature
Story
Task

Spring Boot Testing

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Testing Pyramid
https://martinfowler.com/bliki/TestPyramid.html

Spring Boot Testing

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https://less.works/less/technical-excellence/unit-testing.html

Spring Boot Testing

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Find vs Prevent

Spring Boot Testing

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Mind-set switch
Instead of
We are here to find bug
We are here to ensure requirement are met
We are here to break the software

Spring Boot Testing

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Mind-set switch
Instead of
We are here to find bug
We are here to ensure requirement are met
We are here to break the software
Think
What can I do to help deliver the software
successfully !!

Spring Boot Testing

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Understand Why => What and
How to test ?
Discussion is very important

Spring Boot Testing

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Remember !!
Test pyramid is a tool
To talk about automation tasks
How to prioritise and help to do automation ?
Way to make visible to the whole team

Spring Boot Testing

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Where to start ?

Spring Boot Testing

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What are the biggest
obstacles ?

Time/Tools/System/People

Spring Boot Testing

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What should be careful ?
Automating end-to-end tests
User Interface are slow
Working with database
Working with external system
Automating every paths

Spring Boot Testing

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Test strategies
https://martinfowler.com/articles/microservice-testing/

Spring Boot Testing

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Spring Boot

TDD and Spring Boot Testing

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Why ?
Application skeleton generator
Reduce effort to add new technologies


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Spring vs Spring Boot


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What ?
Embedded application server
Integration with tools/technologies (starter)
Production tools (monitoring, health check)
Configuration management
Dev tools
No source code generation, no XML


Spring boot
Spring boot
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How ?
Spring boot
Apache Tomcat
JAR file
$mvn spring-boot:run
$java -jar demo.jar


Spring boot
Spring boot
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How ?
Spring boot
WAR
Apache Tomcat

Java Framework

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Basic structure of Spring Boot
Controller
DB
Repository
Service
Gateway
External
system
https://docs.spring.io/spring-boot/docs/current/reference/html/using-spring-boot.html#using-boot-structuring-your-code

Java Framework

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Controller
Request and Response
Validation input
Delegate to others classes such as service and
repository

Java Framework

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Service
Control the flow of main business logics
Manage database transaction
Don’t reuse service

Java Framework

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Repository
Manage data in data store such as RDBMS and
NoSQL

Java Framework

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Gateway
Call external service via network such as
WebServices and RESTful APIs

Spring Boot Testing

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Spring Boot Testing

Spring Boot Testing

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Hype cycle

Java Framework

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Spring Boot Testing
Unit Tests
Sliced Tests

(unit test + spring)
Integration
https://docs.spring.io/spring-boot/docs/current/reference/html/spring-boot-features.html#boot-features-testing

Java Framework

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Spring Boot Testing
Unit Tests
Sliced Tests
Integration
@SpringBootTest

Java Framework

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Spring Boot Testing
Unit Tests
Sliced Tests
Integration
@SpringBootTest
@WebMvcTest
@WebFluxTest
@DataJpaTest
@JDBCTest
@DataMongoTest

Java Framework

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Spring Boot Testing
Unit Tests
Sliced Tests
Integration
@SpringBootTest
@WebMvcTest
@WebFluxTest
@DataJpaTest
@JDBCTest
@DataMongoTest
@Mock
Working with Mockito

Java Framework

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What to test ?
Controller Repository
Service
Gateway
DB
External
system

Java Framework

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@SpringBootTest
Service
Gateway

Java Framework

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@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT
)

class UserControllerTest
{

@Autowire
d

TestRestTemplate restTemplate
;

@Autowire
d

private UserRepository userRepository
;

@Tes
t

void getUserById()
{

}

}

Java Framework

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@SpringBootTest with External system
Service
Gateway
DB
External
system

Java Framework

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@RunWith(SpringRunner.class
)

@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT
)

@AutoCon
fi
gureWireMock(port = 9999
)

public class PostGatewayComponentTest
{

@Autowire
d

private PostGateway postGateway
;

@Tes
t

public void getPostById() throws IOException {
}

}

Java Framework

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@WebMvcTest
Service
Gateway
DB
External
system

Java Framework

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@WebMvcTest(UserController.class
)

class UserControllerWebMvcTest
{

@Autowire
d

private MockMvc mvc
;

@MockBea
n

private UserService userService
;

@Tes
t

void getUserById() throws Exception {

}

}

Java Framework

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@DataJpaTest, @JdbcTest
Service
Gateway
DB
External
system

Java Framework

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@RunWith(SpringRunner.class
)

@DataJpaTes
t

public class UserRepositoryTest
{

@Autowire
d

;

@Tes
t

public void found_user()
{

}

}

Java Framework

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Test with Container
https://www.testcontainers.org/

Java Framework

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Unit test with Mockito
Controller Service Repository
Gateway

Java Framework

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@ExtendWith(MockitoExtension.class
)

class UserServiceTest
{

@Moc
k

;

@Tes
t

void found_getData_by_id_1()
{

}

}

Java Framework

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Integration testing with external
Service
Gateway
DB
External
system

Java Framework

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More tests with Spring
CDC (Consumer Driven contract )
https://spring.io/projects/spring-cloud-contract
Contract Testing

Java Framework

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Contract testing with Pact
https://docs.pact.io/

Java Framework

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Reduce risk with tests

Spring Boot Testing

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Demo

Spring Boot Testing

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นำ
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ช้
งาน
กั
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ด
ก่
อน
ท
ทำ
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ดี

Spring Boot Testing

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วั
น
นี้
คุ
ณทดสอบระบบแ
ล้
วห
รื
อ
ยั
ง ?
Q/A

Part 2 :: Spring Boot testing

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Part 2 :: Spring Boot testing