package com.baeldung.systemstubs; import org.junit.jupiter.api.Test; import org.junit.jupiter.api.extension.ExtendWith; import uk.org.webcompere.systemstubs.jupiter.SystemStubsExtension; import static org.assertj.core.api.Assertions.assertThat; @ExtendWith(SystemStubsExtension.class) class FakeDatabaseJUnit5UnitTest { @Test void useFakeDatabase(FakeDatabaseTestResource fakeDatabase) { assertThat(fakeDatabase.getDatabaseConnection()).isEqualTo("open"); } }