wesome

[wesome @WesomeOrg]

Junit 5 Asserts Exceptions

A good coding practice is to throw exceptions when data is invalid. A better test case is to check whether, for an invalid argument, the exception is thrown or not. To test both scenarios, JUnit 5 provides us assertThrows and assertDoesNotThrow methods

[wesome @WesomeOrg]

Default Method in Interface

Up to Java 7, an Interface could only have abstract methods and constants only. implementing class has to implement all the abstract methods of the interface even if that's not required.👍
https://t.co/qYwdXL1idP
#wesome #wesomeorg #Java #Java8

[wesome @WesomeOrg]

Junit 5 Test Case Parallel Execution
All the test cases written in JUnit 5 run sequentially in a single thread.
we can run the test cases parallelly. JUnit 5 provides us with cases@Execution annotation to run test cases parallelly.

#wesome
https://t.co/7xIxEdUVvO

[wesome @WesomeOrg]

Junit 5 Pioneer @DefaultTimeZone

JUnit 5 pioneer provides @DefaultTimeZone annotation to temporarily change the timezone value for test execution. Once the test execution completes, its default value will be restored.

#wesome
https://t.co/bEyigsWeJg

[wesome @WesomeOrg]

Pivot Query
Database table stores individual records into rows, some times these row data need to be transformed into column data called PIVOT. MySQL doesn't provide PIVOT table, a PIVOT table can be created by GROUP_CONCAT, COUNT, SUM
https://t.co/ZwpoygEvDw
#java #mysql #wesome

[wesome @WesomeOrg]

Junit 5 Java Runtime Environment Conditions
Test cases can be enabled and disabled based on Java Runtime Environment conditions.

[wesome @WesomeOrg]

Junit 5 Pioneer RangeSource

JUnit Pioneer RangeSource is an implementation of the ArgumentsSource interface. It can be used to provide a series of numbers as input to a @ParameterizedTest annotation.

#wesome

https://t.co/FMuESPO5EF

[wesome @WesomeOrg]

Junit 5 TestWatcher
Junit 5 provides a lot of ways to extend the functionality provided by default. if we want to extend and execute custom code after JUnit 5 test case for that JUnit 5 provides us TestWatcher interface.

[wesome @WesomeOrg]

Junit 5 Pioneer @SetEnvironmentVariable

JUnit Jupiter pioneer @SetEnvironmentVariable is used to temporarily set the environment property for test execution. Once the test execution completes, its default value will be restored.

#wesome
https://t.co/9Y6QGGhzqw

[wesome @WesomeOrg]

JUnit5 Custom @Tag Specific Gradle Task
@Tag Meta Annotation allows us to combine multiple, we can create a custom @Tag Specific Gradle Task to run the required scenario of the test case.

[wesome @WesomeOrg]

Junit 5 Pioneer @DefaultLocale

JUnit 5 pioneer provides @DefaultLocale annotation to temporarily change the locale value for test execution. Once the test execution completes, its default value will be restored.

#wesome
https://t.co/WisT0z3OS4

[wesome @WesomeOrg]

Junit 5 Pioneer @RepeatFailedTest

Code depends on external conditions, which we can't control, Test cases on those conditions may fail, we should retry the test case before marking as failed. JUnit Pioneer provides @RepeatFailedTest annotation.

#wesome

https://t.co/bXNWkGI8A8

[wesome @WesomeOrg]

Junit 5 Pioneer @ClearEnvironmentVariable

JUnit Jupiter pioneer @ClearEnvironmentVariable is used to temporarily clear the environment variables for test execution. Once the test execution completes, its default value will be restored.

#wesome

https://t.co/YOE3WswoYQ

[wesome @WesomeOrg]

Bit Manipulation
In computers everything is stored as a bit, in simple words 0 and 1, every integer every number are internally stored as a bit. 1 byte contains 8 bits.

https://t.co/M52nnS7LQA

[wesome @WesomeOrg]

Mockito 3 Stubber doAnswer

To stub void method in generic Answer style, doAnswer method is used.

https://t.co/8AnwX1AAFV

#java #Mockito #Mockito3 #wesome #wesomeorg

[wesome @WesomeOrg]

Junit 5 Pioneer

JUnit 5 provides a lot of new features and a lot of default implementations, which can be overridden to extend functionality. we have other extensions that provide even more robust functionality, JUnit-pioneer is one of them.

#wesome

https://t.co/Vcr15SYTWc

[wesome @WesomeOrg]

Junit 5 Custom Display Name Generator
Junit 5 defines all the requirements of the Display Name Generator in the DisplayNameGenerator interface. It allows us to implement the interface and create a custom Display Name Generator.
https://t.co/cNUcseIolU

[wesome @WesomeOrg]

Junit 5 Test Execution @Order Annotationmakes

@Order annotation makes sure that test cases will execute by the order number provided as a parameter to the @Order(1) annotation.

https://t.co/dreRoB9FKZ

#java #Junit #Junit5 #Junit5Jupiter #wesome #wesomeorg

[wesome @WesomeOrg]

Junit 5 Test Execution @Order Annotationmakes

@Order annotation makes sure that test cases will execute by the order number provided as a parameter to the @Order(1) annotation.

https://t.co/dreRoB9FKZ

#java #Junit #Junit5 #Junit5Jupiter #wesome #wesomeorg

[wesome @WesomeOrg]

Junit 5 Test Execution @Order Annotationmakes

@Order annotation makes sure that test cases will execute by the order number provided as a parameter to the @Order(1) annotation.

https://t.co/dreRoB9FKZ

#java #Junit #Junit5 #Junit5Jupiter #wesome #wesomeorg