Fluent Assertions for JUnit 5

Set of Fluent Assertions for Unit Tests. Inspired by FEST Fluent Assertions 2.x.

Latest release

The most recent release is fluent-assertions 0.5, released 2018-04-12.

The Maven group ID is de.toberkoe, and the artifact ID is fluent-assertions. Use version 0.5 for the current version.

To add a dependency on fluent-assertions using Maven, use the following:

<dependency>
  <groupId>de.toberkoe</groupId>
  <artifactId>fluent-assertions</artifactId>
  <version>0.5</version>
  <scope>test</scope>
</dependency>

To add a dependency using Gradle:

dependencies {
  testImplementation 'de.toberkoe:fluent-assertions:0.5'
}

Examples

Use de.toberkoe.fluentassertions.api.Assertions#assertThat as entry point for type-specific fluent assertions. To make tests more readable, it is recommended to access this class as a static import.

import static de.toberkoe.fluentassertions.api.Assertions.assertThat;
...

List<Integer> numbers = List.of(1, 2, 3, 4, 5);
assertThat(numbers)
  .isNotEmpty()
  .hasSizeOf(5)
  .startsWith(1, 2, 3)
  .doesNotHaveDuplicates();