Best Assertj code snippet using org.assertj.core.api.iterable.IterableAssert_first_with_InstanceOfAssertFactory_Test.asList
Source:IterableAssert_first_with_InstanceOfAssertFactory_Test.java
...10 *11 * Copyright 2012-2020 the original author or authors.12 */13package org.assertj.core.api.iterable;14import static java.util.Arrays.asList;15import static java.util.Collections.emptyList;16import static org.assertj.core.api.Assertions.assertThat;17import static org.assertj.core.api.Assertions.catchThrowable;18import static org.assertj.core.api.BDDAssertions.then;19import static org.assertj.core.api.InstanceOfAssertFactories.INTEGER;20import static org.assertj.core.api.InstanceOfAssertFactories.STRING;21import static org.assertj.core.error.ShouldNotBeNull.shouldNotBeNull;22import static org.assertj.core.util.AssertionsUtil.expectAssertionError;23import static org.assertj.core.util.FailureMessages.actualIsEmpty;24import org.assertj.core.api.AbstractStringAssert;25import org.assertj.core.api.InstanceOfAssertFactory;26import org.assertj.core.api.IterableAssert;27import org.junit.jupiter.api.DisplayName;28import org.junit.jupiter.api.Test;29/**30 * Tests for <code>{@link IterableAssert#first(InstanceOfAssertFactory)}</code>.31 * 32 * @author Stefano Cordio33 */34@DisplayName("IterableAssert first(InstanceOfAssertFactory)")35class IterableAssert_first_with_InstanceOfAssertFactory_Test {36 private final Iterable<Object> iterable = asList("string", 42, 0.0);37 @Test38 void should_fail_if_iterable_is_empty() {39 // GIVEN40 Iterable<String> iterable = emptyList();41 // WHEN42 AssertionError assertionError = expectAssertionError(() -> assertThat(iterable).first(STRING));43 // THEN44 then(assertionError).hasMessage(actualIsEmpty());45 }46 @Test47 void should_fail_throwing_npe_if_assert_factory_is_null() {48 // WHEN49 Throwable thrown = catchThrowable(() -> assertThat(iterable).first(null));50 // THEN...
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