JUnit 5 Fundamentals

@ParameterizedTest with @CsvSource & @CsvFileSource

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Argument Conversion Techniques for Parameterized Tests

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@ParameterizedTest with @MethodSource

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Overview

In this lesson, we take a look at @ParameterizedTest data generated from comma-separated values (CSV). There are two source annotations to help with this integration: @CsvSource allows you to specify the values right in the annotation, in a well-arranged structure. @CsvFileSource expects a path to a resource file, which is read in at runtime, and should contain the desired input values. This makes it possible to store test data outside of the source code itself!

Summary

CSV data can be inlined with @CsvSource, ...
...or read in from a resource file with @CsvFileSource

Instructor

Marcel Schnelle

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Lessons in JUnit 5 Fundamentals

Understand the Core Components of JUnit 5

Set up your Java Project for JUnit 5

Set up your Android Project for JUnit 5

The first @Test

Lifecycle with @BeforeEach & @AfterEach

Lifecycle with @BeforeAll & @AfterAll

Using 1 Instance per Method with @TestInstance

Using 1 Instance per Class with @TestInstance

Taking advantage of @TestInstance(PER_CLASS) in Kotlin

Bearable Test Method Names with @DisplayName

Checking for equality with assertEquals() & Friends

Using assertTrue() & assertFalse()

Testing Exceptions with assertThrows()

Composing Assertions with assertAll()

Avoiding failure with Assumptions

Ignoring Tests with @Disabled

Conditional Test Execution Pairs: @EnabledOnOs & @DisabledOnOs

Conditional Test Execution Pairs: @EnabledOnJre & @DisabledOnJre

Conditional Test Execution Pairs: @EnabledIfSystemProperty & @DisabledIfSystemProperty

Conditional Test Execution Pairs: @EnabledIfEnvironmentVariable & @DisabledIfEnvironmentVariable

Conditional Test Execution Pairs: @EnabledIf & @DisabledIf

Grouping tests with @Tag

@Nested & Effective BDD in JUnit 5

Running a test multiple times with @RepeatedTest

@ParameterizedTest with @ValueSource

@ParameterizedTest with @EnumSource

@ParameterizedTest with @MethodSource

@ParameterizedTest with @CsvSource & @CsvFileSource

Argument Conversion Techniques for Parameterized Tests

Writing a custom @Source for Parameterized Tests

Introduction to @TestFactory and Dynamic Tests

Grouping Dynamic Tests into Containers

Lifecycle Caveats for Dynamic Tests

Setting up Parallel Test Execution

Parallel Execution Strategies: Dynamic

Parallel Execution Strategies: Fixed

Parallel Execution Strategies: Custom

Synchronizing Parallel Test Execution with @ResourceLock