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Java Unit Testing with JUnit 5

Gain insights into configuring and utilizing JUnit 5 for Java unit testing. Learn about writing effective unit tests, integrating assertions, assumptions, parameterized tests, and their significance.

Intermediate

46 Lessons

Certificate of Completion

Gain insights into configuring and utilizing JUnit 5 for Java unit testing. Learn about writing effective unit tests, integrating assertions, assumptions, parameterized tests, and their significance.

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Course Content

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Course Overview

Junit 5 is the most popular and widely used Java unit testing framework. In this course, you will learn step by step, how to configure and use JUnit 5 testing framework. This course will teach you how to write unit tests with JUnit 5, covering topics like why unit tests are important, the structure of good unit tests, assertions, assumptions and parameterized tests and more.

Course Content

Getting Started

4 Lessons

Get familiar with JUnit 5's architecture, creating tests, and @Test annotation use.

JUnit 5 Introduction

Junit 5 Architecture

Building Your First Junit 5 Test

@Test Annotation

Assertions in Junit 5

16 Lessons

Get started with validating diverse conditions using JUnit 5 assertions for robust unit testing.

What is the Assertion in JUnit 5?

assertNull() method

assertNotNull() method

Using assertNull() and assertNotNull() methods together

assertEquals() method

assertNotEquals() method

assertNotSame() method

assertArrayEquals() method

assertIterableEquals method

assertThrows() method

assertTimeout() method

assertTimeoutPreemptively method

Junit 5 Test Lifecycle Callbacks

2 Lessons

Work your way through JUnit 5's lifecycle callbacks with @BeforeEach, @AfterEach, @BeforeAll, and @AfterAll.

@BeforeEach and @AfterEach Annotation

@BeforeAll and @AfterAll Annotation

Display Names

2 Lessons

Grasp the fundamentals of using @DisplayName to enhance test readability in JUnit 5.

@DisplayName Annotation on Test Class

@DisplayName Annotation on Test Methods

Dependency Injection for Constructors and Methods

1 Lessons

Take a closer look at Dependency Injection using the TestInfo parameter in JUnit 5.

TestInfo parameter

Assumptions in Junit 5

3 Lessons

Investigate JUnit 5 assumptions to conditionally control and potentially abort test execution.

What are Assumptions in JUnit 5 ?

assumeTrue() and assumeFalse() method

assumingThat() method

Disable or Enable Tests in Junit 5

5 Lessons

Master the steps to manage test execution and compatibility using JUnit 5 conditions.

Disable Test Method and Class - @Disabled

Operating System Conditions - @DisabledOnOs and @EnabledOnOs

Java Runtime Environment Conditions - @DisabledOnJre and @EnabledOnJre

System Property Conditions - @DisabledIfSystemProperty and @EnabledIfSystemProperty

Environment Variable Conditions - @DisabledIfEnvironmentVariable and @EnabledIfEnvironmentVariable

Nested Tests in Junit 5

1 Lessons

Break down nested test organization with JUnit 5 for better readability and management.

@Nested Tests

JUnit 5 Integration with Maven

3 Lessons

Get started with integrating JUnit 5 in Maven projects for streamlined Java testing.

Create a maven project in Eclipse

JUnit 5 Dependencies

Create and run JUnit 5 Test Case

10.

Parameterized Tests in Junit 5

6 Lessons

Work your way through parameterized test setups and techniques using JUnit 5's annotations.

Parameterized Tests Setup

Parameterized Test with @ValueSource

ParameterizedTest with @EnumSource

ParameterizedTest with @MethodSource

ParameterizedTest with @CsvSource

Parameterized Test with @CsvFileSource

11.

Repeated Tests in Junit 5

2 Lessons

Grasp the fundamentals of using @RepeatedTest to run multiple test executions efficiently in JUnit 5.

@RepeatedTest example

@RepeatedTest with Display Name

12.

Appendix

1 Lessons

Explore additional resources, tutorials, and provide feedback to deepen your JUnit 5 knowledge.

Conclusion

Course Author

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