https://github.com/marschall/junit-lambda

junit extensions that make use of lambda expressions
https://github.com/marschall/junit-lambda

Last synced: 9 months ago
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junit extensions that make use of lambda expressions

• Host: GitHub
• URL: https://github.com/marschall/junit-lambda
• Owner: marschall
• Created: 2013-09-26T20:08:22.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2020-11-15T19:55:42.000Z (about 5 years ago)
• Last Synced: 2025-03-27T02:43:13.195Z (9 months ago)
• Language: Java
• Size: 40 KB
• Stars: 6
• Watchers: 4
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
JUnit λ [![Build Status](https://travis-ci.org/marschall/junit-lambda.png?branch=master)](https://travis-ci.org/marschall/junit-lambda) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.marschall/junit-lambda/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.github.marschall/junit-lambda)

=======

JUnit extensions built on Java 8 lambdas. Helps to test exceptions and can be used instead of the following pattern:

```java

try {

    Long.parseLong("foo");

    fail("'foo' should not be a valid long");

} catch (NumberFormatException e) {

    // should reach here

}

```

You can either use `#assertRaises`

```java

import static com.github.marschall.junitlambda.LambdaAssert.assertRaises;

import org.junit.Test;

public final class JunitLambdaTest {

    @Test

    public void testNumberFormatException() {

        assertRaises(() -> Long.parseLong("foo"), NumberFormatException.class);

    }

}

```

or the Hamcrest matcher `#throwsException`

```java

import static com.github.marschall.junitlambda.ThrowsException.throwsException;

import org.junit.Test;

public final class JunitLambdaTest {

    @Test

    public void testNumberFormatException() {

        assertThat(() -> Long.parseLong("foo"), throwsException(NumberFormatException.class));

    }

}

```

```xml

    com.github.marschall

    junit-lambda

    0.3.0

    test

```

The code is under MIT license.