Best Assertj code snippet using org.assertj.core.api.BDDAssertions.thenIllegalArgumentException
1package com.ftm.javafp.monads.either;2import org.assertj.core.api.ThrowableAssert.ThrowingCallable;3import org.junit.jupiter.api.Test;4import static org.assertj.core.api.BDDAssertions.then;5import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;6class ProductPriceAdapterImperativeTest {7 private final ProductPriceAdapterImperative adapter = new ProductPriceAdapterImperative();8 @Test9 void should_return_product_price_for_valid_references() {10 // Given11 final var searchCriteria = aValidSearchCriteria();12 final var expected = aValidProductPrice();13 // When14 final var productPrice = adapter.getProductPrice(searchCriteria);15 // Then16 then(productPrice).isEqualTo(expected);17 }18 @Test19 void should_throw_exception_when_product_price_not_found() {20 // Given21 final var searchCriteria = aValidSearchCriteriaWithUnknownReference();22 // When23 final ThrowingCallable throwable = () -> adapter.getProductPrice(searchCriteria);24 // Then25 thenIllegalArgumentException().isThrownBy(throwable);26 }27 @Test28 void should_throw_exception_when_product_out_of_stock() {29 // Given30 final var searchCriteria = aValidSearchCriteriaWithOutOfStockReference();31 // When32 final ThrowingCallable throwable = () -> adapter.getProductPrice(searchCriteria);33 // Then34 thenIllegalArgumentException().isThrownBy(throwable);35 }36 @Test37 void should_throw_exception_when_invalid_search_criteria() {38 // Given39 final SearchCriteria invalidSearchCriteria = null;40 // When41 final ThrowingCallable throwable = () -> adapter.getProductPrice(invalidSearchCriteria);42 // Then43 thenIllegalArgumentException().isThrownBy(throwable);44 }45 private SearchCriteria aValidSearchCriteriaWithOutOfStockReference() {46 return new SearchCriteria(new ProductReference("789"));47 }48 private ProductPrice aValidProductPrice() {49 return new ProductPrice(aValidProductReference(), aValidPrice());50 }51 private Price aValidPrice() {52 return new Price("EUR", 5095, 2);53 }54 private SearchCriteria aValidSearchCriteria() {55 return new SearchCriteria(aValidProductReference());56 }57 private SearchCriteria aValidSearchCriteriaWithUnknownReference() {...
Source: NameTest.java
...5import org.junit.jupiter.params.provider.NullSource;6import org.junit.jupiter.params.provider.ValueSource;7import static com.project.kodesalon.exception.ErrorCode.INVALID_MEMBER_NAME;8import static org.assertj.core.api.BDDAssertions.then;9import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;10class NameTest {11 @ParameterizedTest12 @ValueSource(strings = {"ê¹ì¨", "ë°íëë³ë구ë¦íëë³´ë¤ì¬ëì¤ë¬ì°ë¦¬"})13 @DisplayName("value ë©ìë를 í¸ì¶íë©´ ì´ë¦ì 리í´í©ëë¤.")14 void value(String validName) {15 Name name = new Name(validName);16 then(name.value()).isEqualTo(validName);17 }18 @ParameterizedTest19 @ValueSource(strings = {"ê¹", "ë°íëë³ë구ë¦íëë³´ë¤ì¬ëì¤ë¬ì°ë¦¬ë", "ì ì´", "ì~", "abc"})20 @DisplayName("ì í¨íì§ ìì ì´ë¦ì ìì¸ë¥¼ ë°ììíµëë¤.")21 void name_throw_exception_with_invalid_format(String invalidName) {22 thenIllegalArgumentException().isThrownBy(() -> new Name(invalidName))23 .withMessage(INVALID_MEMBER_NAME);24 }25 @ParameterizedTest26 @NullSource27 @DisplayName("nullì¼ ê²½ì°, ìì¸ê° ë°ìí©ëë¤")28 void name_throw_exception_with_null(String nullArgument) {29 thenIllegalArgumentException().isThrownBy(() -> new Name(nullArgument))30 .withMessage(INVALID_MEMBER_NAME);31 }32 @Test33 @DisplayName("ëì¼í ì´ë¦ì ê°ì§ ê°ì²´ë¥¼ ë¹êµí ê²½ì°, true를 리í´í©ëë¤")34 void equals() {35 Name name = new Name("ì´ë¦");36 then(name).isEqualTo(new Name("ì´ë¦"));37 }38}...
Source: FizzBuzzTest.java
...3import org.junit.jupiter.api.Test;4import java.util.List;5import java.util.function.Consumer;6import java.util.function.Function;7import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;8import static org.assertj.core.api.BDDSoftAssertions.thenSoftly;9class FizzBuzzTest {10 private final Function<Input, List<String>> fizzBuzz = new FizzBuzz();11 @Test12 void should_print_first_100_elements() {13 // Given14 final Consumer<String> consumer = System.out::println;15 final var input = Input.of(1, 100);16 // When17 final List<String> actual = fizzBuzz.apply(input);18 actual.forEach(consumer);19 // Then20 thenSoftly(softly -> {21 softly.then(actual).hasSize(100);22 softly.then(actual.get(2)).isEqualTo("Fizz");23 softly.then(actual.get(4)).isEqualTo("Buzz");24 softly.then(actual.get(89)).isEqualTo("FizzBuzz");25 });26 }27 @Test28 void should_throw_exception_when_invalid_input() {29 thenIllegalArgumentException().isThrownBy(() -> Input.of(10, 0));30 }31}...
thenIllegalArgumentException
Using AI Code Generation
1import org.assertj.core.api.BDDAssertions;2import org.junit.Test;3public class AssertJTest {4 public void test() {5 BDDAssertions.thenIllegalArgumentException().isThrownBy(() -> {6 throw new IllegalArgumentException();7 });8 }9}
Check out the latest blogs from LambdaTest on this topic:
Hey everyone! We hope you had a great Hacktober. At LambdaTest, we thrive to bring you the best with each update. Our engineering and tech teams work at lightning speed to deliver you a seamless testing experience.
Selenium, a project hosted by the Apache Software Foundation, is an umbrella open-source project comprising a variety of tools and libraries for test automation. Selenium automation framework enables QA engineers to perform automated web application testing using popular programming languages like Python, Java, JavaScript, C#, Ruby, and PHP.
Dries Buytaert, a graduate student at the University of Antwerp, came up with the idea of developing something similar to a chat room. Moreover, he modified the conventional chat rooms into a website where his friends could post their queries and reply through comments. However, for this project, he thought of creating a temporary archive of posts.
In today’s fast-paced world, the primary goal of every business is to release their application or websites to the end users as early as possible. As a result, businesses constantly search for ways to test, measure, and improve their products. With the increase in competition, faster time to market (TTM) has become vital for any business to survive in today’s market. However, one of the possible challenges many business teams face is the release cycle time, which usually gets extended for several reasons.
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!