/* * Copyright 2015-2023 the original author or authors. * * All rights reserved. This program and the accompanying materials are * made available under the terms of the Eclipse Public License v2.0 which * accompanies this distribution and is available at * * https://www.eclipse.org/legal/epl-v20.html */ package example; // tag::user_guide[] import static org.hamcrest.CoreMatchers.equalTo; import static org.hamcrest.CoreMatchers.is; import static org.hamcrest.MatcherAssert.assertThat; import example.util.Calculator; import org.junit.jupiter.api.Test; class HamcrestAssertionsDemo { private final Calculator calculator = new Calculator(); @Test void assertWithHamcrestMatcher() { assertThat(calculator.subtract(4, 1), is(equalTo(3))); } } // end::user_guide[]